Arlyn Scales ArlynGuard S MKE-5-IS-SAW User manual

ArlynGuard S
Model MKE-5-IS(-SAW) (-SP) (-422) (-485)
Intrinsically Safe SAW Ultra Precision Scales
Instruction Manual

2
CONTENTS
MANUFACT URER’S DECLARATION OF CONFORMITY ................................................................................................................. 5
INTRODUCTION .................................................................................................................................................................................... 6
S
CALE
V
ERSION
.................................................................................................................................................................................................. 6
F
EATURES
......................................................................................................................................................................................................... 6
P
RECAUTIONS
.................................................................................................................................................................................................... 6
B
EST
C
ONDITIONS FOR
W
EIGHING
......................................................................................................................................................................... 6
T
HIS
M
ANUAL
.................................................................................................................................................................................................... 6
FACTORY MUTUAL APPROVAL AND INTRINSIC SAFETY ........................................................................................................................ 7
I
NTRINSIC
S
AFETY
, L
IMITATIONS AND
R
ESTRICTIONS
.................................................................................................................................................. 7
INITIAL SET-UP AND OPERATION.......................................................................................................................................................... 8
Installation Checklist .............................................................................................................................................................................. 8
S
TARTUP
C
AUTION
.............................................................................................................................................................................................. 9
P
LATFORM
L
EVELING
L
EGS
................................................................................................................................................................................... 9
BATTERY OPERATION – CHARGING AND USE ..................................................................................................................................... 11
Safety Considerations – IMPORTANT! ................................................................................................................................................. 11
Battery Charging .................................................................................................................................................................................. 11
L
OAD
C
ELL
W
IRING
........................................................................................................................................................................................... 11
CONTROLS AND INDICATORS ............................................................................................................................................................. 12
M
AIN
D
ISPLAY
S
CREEN
...................................................................................................................................................................................... 12
F
RONT
P
ANEL
/ K
EYBOARD
................................................................................................................................................................................. 12
Main Function Keys .............................................................................................................................................................................. 13
Menu Navigation Keys ......................................................................................................................................................................... 13
Secondary Function Keys ..................................................................................................................................................................... 13
CALIBRATION ..................................................................................................................................................................................... 14
R
ECOMMENDATIONS
......................................................................................................................................................................................... 14
O
VERVIEW
...................................................................................................................................................................................................... 14
SAW SCALE FULL CALIBRATION .......................................................................................................................................................... 14
CAP ZERO (RESETTING THE CAPACITY SENSOR) .................................................................................................................................. 15
SAW CORRECTION (ADVANCED OPERATION ONLY) ........................................................................................................................... 15
QUICK SAW CORRECTION (ADVANCED OPERATION ONLY) ................................................................................................................ 15
SYSTEM OPERATION .......................................................................................................................................................................... 16
B
ASIC
M
ENU
O
PERATION
................................................................................................................................................................................... 16
T
ARE
F
UNCTIONS
.............................................................................................................................................................................................. 16
T
ARE
S
ETTINGS AND
T
ARE
D
EFINITIONS
................................................................................................................................................................ 16
Tare Definitions .................................................................................................................................................................................... 16
Tare Settings ........................................................................................................................................................................................ 17
T
HE
S
YSTEM
M
ENU
.......................................................................................................................................................................................... 17
Backup ................................................................................................................................................................................................. 17
Restore ................................................................................................................................................................................................. 17
Restore to Factory Defaults ................................................................................................................................................................. 17
Startup Parameters.............................................................................................................................................................................. 17
Scale Description / Scale ID Number .................................................................................................................................................... 18
Udef Conversion Multiplier .................................................................................................................................................................. 18
Display Contrast ................................................................................................................................................................................... 18
Display Refresh Interval (or Display Update Speed) ............................................................................................................................ 18
Auto Shut-Off ....................................................................................................................................................................................... 18
Decimal Truncation .............................................................................................................................................................................. 18
CONFIGURATION AND CALIBRATION ................................................................................................................................................. 18

3
P
LATFORM
S
ETUP
............................................................................................................................................................................................. 18
Important Selections ............................................................................................................................................................................ 19
Other Items .......................................................................................................................................................................................... 19
Parametric Settings ............................................................................................................................................................................. 19
Filtering and Accuracy ......................................................................................................................................................................... 20
Advanced Setup and Diagnostics ......................................................................................................................................................... 23
TROUBLESHOOTING ........................................................................................................................................................................... 24
Scale reads zero and will not move. ..................................................................................................................................................... 24
Scale reading is fluctuating wildly. ...................................................................................................................................................... 24
Scale reading is different on different areas on the platform? ............................................................................................................ 24
Scale corners properly but does not indicate the correct weight. ........................................................................................................ 24
MENU TREE ........................................................................................................................................................................................ 25
INTRODUCTION TO OPTIONS ............................................................................................................................................................. 27
RS422 COMMUNICATION ................................................................................................................................................................... 27
C
ONFIGURING THE
P
ORT
.................................................................................................................................................................................... 27
P
ERFORM
T
EST
P
RINT
........................................................................................................................................................................................ 27
L
OOP
B
ACK
T
EST
.............................................................................................................................................................................................. 27
P
RINT
S
TREAM
M
ODE
....................................................................................................................................................................................... 28
P
RINTING AT
S
TABILITY
U
SING
M
OTION
D
ETECTION AND
S
TABILITY
C
ONTROL
.............................................................................................................. 28
The Print-At-Stability Setup Screen ...................................................................................................................................................... 28
Print Stream Mode with Print-At-Stability ........................................................................................................................................... 29
P
RINT
F
RAME
.................................................................................................................................................................................................. 29
Defining and Editing the Print Frame .................................................................................................................................................. 29
Print Frame Functions .......................................................................................................................................................................... 30
Print Frame Design Examples .............................................................................................................................................................. 30
E
XTERNAL
C
OMMAND
I
NTERFACE
........................................................................................................................................................................ 30
Print Request Response Time ............................................................................................................................................................... 31
External Command Limitations ............................................................................................................................................................ 31
The [*] Command: Used for Keyboard Emulation ............................................................................................................................... 31
T
EST
U
SING
T
ERMINAL
...................................................................................................................................................................................... 31
RS485 COMMUNICATION ................................................................................................................................................................... 33
C
ONFIGURING THE
P
ORT
.................................................................................................................................................................................... 33
P
ERFORM
T
EST
P
RINT
........................................................................................................................................................................................ 33
P
RINT
S
TREAM
M
ODE
....................................................................................................................................................................................... 33
P
RINT AT
S
TABILITY
U
SING
M
OTION
D
ETECTION AND
S
TABILITY
C
ONTROL
................................................................................................................... 33
P
RINT
F
RAME
.................................................................................................................................................................................................. 33
E
XTERNAL
C
OMMAND
I
NTERFACE
........................................................................................................................................................................ 33
SETPOINT CONTROLLER ..................................................................................................................................................................... 34
O
UTPUT
S
PECIFICATIONS AND
N
OTES
................................................................................................................................................................... 34
C
REATING
S
ETPOINTS
F
ORMULAS
........................................................................................................................................................................ 34
The Setpoint Definition Screen ............................................................................................................................................................. 34
Creating and Editing Formulas ............................................................................................................................................................ 35
Notes on Cycle Mode ........................................................................................................................................................................... 36
Output Connector and Pin Diagram .................................................................................................................................................... 37
WEIGHT AVERAGING .......................................................................................................................................................................... 37
P
USH
B
UTTON
O
PERATION
................................................................................................................................................................................. 37
C
ONTINUOUS
O
PERATION
.................................................................................................................................................................................. 37
C
ONFIGURING THE
W
EIGHT
A
VERAGE
O
PTION
....................................................................................................................................................... 37
KEY LOCK PASSWORD PROTECT ......................................................................................................................................................... 37
K
EYPAD
L
OCK
................................................................................................................................................................................................... 38

4
K
EYPAD
U
NLOCK
.............................................................................................................................................................................................. 38
D
EACTIVATING
K
EYPAD
L
OCK
.............................................................................................................................................................................. 38
SPECIFICATIONS ................................................................................................................................................................................. 38
LIMITED WARRANTY .......................................................................................................................................................................... 39
CONTROL DRAWINGS ........................................................................................................................................................................ 40

5
Manufacturer’s Declaration of Conformity
This product has been manufactured in accordance with the harmonized European standards,
following the provisions of the below stated directives:
The Electromagnetic Compatibility (EMC) Directive 2014/30/EU
Restriction of the use of certain hazardous substances (RoHS) Directive 2011/65/EU
Arlyn Scales, Inc.
59 2
nd
Street,
East Rockaway, NY 11518
USA

6
INTRODUCTION
Congratulations on your purchase of an Intrinsically Safe Ultra Precision SAW Scale. This Scale offers a combination of versatility,
accuracy and simplicity in an easy to use and easy to maintain package. Advanced menu driven operating software, large memory
capacity and an easy to use menu structure allows the scale to be configured for almost any application. To obtain the best
performance and greatest utilization from your scale, read this instruction booklet completely and carefully.
Please enter the Serial Number, which is located on the scale serial plate. Retain this information for future reference.
Serial No. _______________________________________________.
Scale Version
The firmware version is shown when the scale is booted up. The version number can be seen at the bottom right of the screen during
the logo splash. The firmware version can also be checked by pressing the MENU button → SETUP MENU → SYSTEM SETUP → VIEW
VERSION NUMBER.
Features
❑
Easy to read, LCD Graphics display
❑
Automatic Calibration
❑
Multiple Tare Weights
❑
No Moving Parts
❑
Large Memory Capacity
❑
Eight Unit Conversions Standard
❑
High Accuracy Parts Counting on Many Models
❑
Automatic or Numeric Entry Tare
❑
Sealed “Click-Type” Control Panel
❑
Intrinsically Safe SAW Load Cell
❑
Computerized Self Testing
❑
Automatic Zero Tracking
❑
Full Text and Floating-Point Entry
❑
On Line Help
❑
Optional Weight Average Function
❑
Optional Windows Interface Software
❑
Optional Setpoints
Precautions
1. Prevent inflammables and liquids from entering scale head.
2. Allow clearance on all sides of scale platform for accurate weighing.
3. Do not drop large loads on scale platform.
4. NEVER EXCEED THE RATED CAPACITY OF THE SCALE.
5. Do not pull on the connecting electrical cables.
6. Make sure that the scale and ramps are properly secured to the floor.
Best Conditions for Weighing
1. The scale should be level.
2. Best operating temperature is about 68 degrees F.
3. The weighing area should be kept clean and dry.
4. The surface that the scale is resting on should be of solid construction and not prone to vibrations.
5. Don’t install the scale near heater or air conditioner vents.
6. Avoid drafts.
7. When connecting the scale to an AC power using a Safety Barrier, please utilize a stable AC power supply. Avoid heavy
motorized equipment on the same power line.
8. Do not operate the scale in close proximity of RF transmitters like cell phones and walkie-talkies.
9. Warm-up the scale before use.
This Manual
This instruction manual covers the installation and operation of the MKE-5-IS Intrinsically Safe SAW Scale. Indicated below are the
manual’s current revision number and number of pages. Please check this manual and its control drawings for missing pages. The
installation cannot continue unless all pages are present.
Instruction Man #4501 MKE-5-IS SAW Instruction Manual 40 Pages

7
Control Drawing #4010 MKE-5-IS General Dimensions 1 Sheet
Control Drawing #4011 MKE-5-IS Indicator Label Drawing 1 Sheet
Control Drawing #4013 MKE-5-IS Inst. and Wiring Diagram 7 Sheets
Control Drawing #7213 Approved SAW-IS Body Type SAW-LC-08215, Label Drawing 1 Sheet
Control Drawing #7214 Approved SAW-IS Body Type SAW-LC-16033, Label Drawing 1 Sheet
Control Drawing #7334 Approved SAW Load Cells Installation and Wiring Diagram 2 Sheets
FACTORY MUTUAL APPROVAL AND INTRINSIC SAFETY
The MKE-5-IS SAW Scale System has been rated intrinsically safe by Factory Mutual only when used with specific
intrinsically safe Arlyn load cells and the installation is performed by a qualified technician who conforms to the
guidelines described in this manual. Consult the chapter titled “Installation and Wiring” along with the control
drawings in the back of this document for information pertaining to the installation and wiring of the approved
SAW Load Cells.
MKE-5-IS (a). Digital Weight Indicator System
Intrinsically Safe for use in Class I, II and III, Division 1, Groups A, B, C, D, E, F and G; Temperature Class T3C Tamb = -25°C to +40°C;
Temperature Class T3B Tamb = -25°C to +60°C in accordance with Control Drawing No.4013; Intrinsically safe apparatus for use in Class
I, Zone 0, AEx ia IIC T3 Ta = -25°C to+60°C; in accordance with Control Drawing No. 4013; Nonincendive for use in Class I, II, III, Division
2, Groups A, B, C, D, E, F & G; Temperature Class T6 Tamb = -25°C to +60°C; in accordance with Control Drawing No.4013; Hazardous
(Classified) Locations.
SAW-IS Load Cells (a.k.a SAW-LC-IS)
Intrinsically Safe for use in Class I, II and III, Division 1, Groups A, B, C, D, E, F and G; Temperature Class T3C Tamb = -25°C to +40°C;
Temperature Class T3B Tamb = -25°C to +60°C in accordance with Control Drawing No.7334; Intrinsically safe apparatus for use in Class
I, Zone 0, AEx ia IIC T3 Ta = -25°C to+60°C; in accordance with Control Drawing No. 4013; Nonincendive for use in Class I, II, III, Division
2, Groups A, B, C, D, E, F & G; Temperature Class T6 Tamb = -25°C to +60°C; in accordance with Control Drawing No.7334; Hazardous
(Classified) Locations.
Intrinsic Safety, Limitations and Restrictions
The following items represent limitations and restrictions concerning using this scale system as a FM approved intrinsically safe
system. All items on this list must be adhered to for FM approval to be valid. Disregarding any of these items would violate intrinsic
safety and FM approval, possibly resulting in serious death.
1. The installation needs to be performed by a qualified technician who is familiar with National Electrical Code and RP 12.6
(Recommended Practice) requirements for installation of equipment in hazardous areas. Consult NEC Article 504, Intrinsically
Safe Systems, published through the Instrument Society of America.
2. Only Arlyn, FM approved, SAW Load Cells may be used. Only one SAW Load Cell per Platform per scale maybe connected.
3. The installation technician must conform to all instructions and control drawings in this manual.
4. The indicator and SAW Load Cell must have the appropriate labeling that complies with the control drawings.
5. All wiring and connections must comply with the National Electrical Code (NEC).
6. The cable type and length limitation must comply with the control drawings.
7. No modifications of this system may be made in the field. Component level repair is not permitted on Factory Mutual
approved equipment. It is mandatory to return the unit to Arlyn Scales for repair.
8. Removal of the battery is not allowed when the scale is located in a hazardous area. The indicator must be removed from its
mounting bracket and taken to a safe area. Only then can the battery cover be removed and the battery recharged or
replaced.
9. If using external power source to power the scale system, the power source must be rated for intrinsic safety and must
comply with the entity parameters associated with this scale system. Alternatively, if the power source is through a safety
barrier, the barrier must match the intrinsic safety parameters of the scale system.
10. To avoid the possibility of static buildup, the indicator housing must not be cleaned or rubbed down with a dry cloth while it is
located in a hazardous area

8
INITIAL SET-UP AND OPERATION
The MKE-5-IS is simple to install and operate. It has the ability to operate on battery power as well as an external power supply. The
other wiring necessary is for the attachment of load cells and optional cables for Setpoints and Serial Communication. For the battery
operation, focus on the section “Battery Operation – Charging and Use” A complete understanding of the care, maintenance and
operation of the battery and its holder is vital for its safe operation.
Before doing the actual installation, you may wish to get some batteries charging now!
Installation Checklist
Please use the following checklist to guide you through the installation and setup. This checklist is only a guide. You should read all
applicable areas in this manual at each step of the checklist.
Initial Preparation
1. Read the section at the beginning of this manual entitled “This Manual”. Using the information found there, make sure that all
pages have been included in this manual along with the appropriate drawings. The installation cannot continue unless all
documents are present.
2. Examine Control Drawing # 4013. This drawing indicates the types of hazardous environments that this scale may be safely
used in. Ensure that this scale is safe for use in your hazardous environment.
3. Consult the label drawings for both the indicator and SAW Load Cells (DOCS 7213, 7214 and 4011). Make sure that ALL labels
are present and in the correct location. FM approval is not valid if a label is incorrect, unreadable, missing or if the text on the
label isn’t the same as indicated in the control drawings.
Okay, Let’s Get Started
1. Prepare the hazardous area by making it temporarily safe while performing this installation.
2. Carefully unpack scale from shipping carton. Save packing material for possible future use.
3. If the level legs are included separately, then screw one into each corner underneath the scale. If the level legs are already
screwed into the platform, they MUST be unscrewed and extended out so they can hold the platform above ground.
4. Place scale on a level surface and adjust the level legs so that all four legs are touching the surface. The platform should not
be allowed to “rock” in any direction.
5. If your scale comes equipped with ramps, fix them to the floor using the mounting holes provided. This way the ramp will not
move during normal use. Be careful not to let the scale platform rub up against the ramp or any other surface, as this would
cause non-repeatability and other inaccuracies.
6. Decide on a location for the indicator. The unit can be mounted to a wall or desk using the supplied “L” bracket.
7. Unscrew and remove the mounting bracket from the indicator.
8. Attach the indicators mounting bracket to a wall or other appropriate mounting.
9. Remove the indicator from the hazardous area. Charge the battery.
10. Obtain all of the necessary SAW Load Cell and cables appropriate for your installation (one SAW Load Cell maximum).
11. Mount all load cells and complete the wiring using DOC 4013 as a reference. Make sure that the cable is of the correct type
indicated on the drawing and that total length is less than the maximum indicated.
12. It is recommended that you ground your platform to a suitable earth ground.
13. While the indicator is still in a safe area, install three charged batteries into the battery holder and secure the cover. Read and
head the warnings in the next section before working with batteries.
14. Once the battery is installed, move the indicator into the hazardous area and attach it to its mounting bracket. Tighten the
thumbscrew.
15. Connect the SAW Load Cell/Platform to the pigtail cable from the indicator. Single SAW Load Cells purchased from Arlyn
Scales will already have this connector attached.
16. The scale is now ready to use. The system should be tested for proper operation prior to making the area hazardous.

9
Normal Operation
1. Activate the scale by using the Main Power Switch on the rear of the unit to the “Battery or “I” position. The scale will run a
self-test procedure to check its load sensors and electronic circuitry. Upon proper completion, scale will settle on zero. Allow
a five-minute warm-up time for stabilization and most accurate results.
2. The scale can also be turned on from an external power supply through the barrier and turning off the battery switch using
the Main Power Switch.
3. Most pre-assembled scales come from the factory in a calibrated condition. There is no reason to do an initial calibration on
these scales.
4. If you are wiring the SAW Load Cell yourself, the indicator may require setup and calibration. Please refer to the sections later
in this manual for calibration instructions, or call Arlyn’s Service Department (800-645-4301 Ext 101) and we will help you
through it. It is not a difficult or time-consuming process.
5. Items to be weighed may be placed anywhere on the platform, but if heavy items are to be weighed, it is advisable to place
them near the center. Many models are equipped with shock absorbers and positive overload stops for protection. Still, care
should be taken to avoid putting excessive stress on the SAW Load Cell system, as when heavy weights are dropped on the
platform. It is also important, especially in the case of large capacity platforms, that the platform not be impacted from the
sides while there is a heavy load on the platform.
6. It is normal for a small amount of zero drift to occur over short periods of time. For the most accurate readings, the scale may
re-acquire a true zero by using the ZERO button just prior to weighing.
Startup Caution
Every time the scale is powered up, please wait at least 30 seconds before placing a weight on the scale or pressing any buttons. The
scale has to initialize all its parameters and remember your previous settings and that takes a little bit of time.
Platform Leveling Legs
Platforms will come with leveling legs that lifts the platform from the ground and provide the clearance for the internal load cell
sensors to bend. At shipping, these leveling legs are screwed into the platform tightly (with no clearance) to protect the platform and
the legs during shipping.
POWER MANAGEMENT
The MKE-5-IS Display Indicator can be powered from two different sources – internally housed Rechargeable Batteries or Optional
External Power Supply (Intrinsically Safe External Supply or Power Supply through an approved barrier).
Battery Operation – Charging and Use
The MKE-5-IS Display Indicator is designed to use high capacity, three (3) AA 1.2V rechargeable batteries. The batteries can be changed
by opening the screw-on battery cover on the left side of the indicator, and pulling out the discharged batteries. Newly charged
batteries can then be inserted to power the indicator.
The scale firmware is designed to remember its “last zero” state. This means then since the scale will be turned off when changing
batteries, after the scale is powered on again and connected back to the platform, it will not zero out the current weight on the
platform. If this is not desired, then this setting can easily be changed.
Caution
Battery Power Safety Considerations – IMPORTANT!
In order for this indicator to be safely operated in a hazardous area, battery care, operation and maintenance must be fully understood
before you start the installation.
The rechargeable batteries used in this indicator have been approved by FM. The use of any other batteries
violates FMs approval. Additional and replacement batteries must be purchased from Arlyn Scales.

10
This battery holder was designed specifically for use in hazardous environments. It contains an internal current limiting circuit whose
function it is to restrict the amount of power that the unit can supply, even if its outputs are shorted together. The battery holder is
highly impact resistant, and designed to keep gasses, dust and other foreign materials out. When replacing batteries, you must ensure
that there are no foreign materials inside the holder, and that the correct battery has been installed with the proper polarity.
Factory Mutual (FM) requires that the battery holder be designed in such a way as to eliminate any possibility of the holder coming
apart and ejecting the battery if the unit is dropped or impacted sharply. In order to maintain this integrity, the cover must be securely
fastened after installing the battery. Do not over tighten. Hand tightening is satisfactory. Failure to do so may cause the unit to eject
the battery if the unit is dropped. The battery must never be exposed while it is located in a hazardous area.
AT NO TIME WHATSOEVER SHOULD THE BATTERY COVER BE OPENED WHILE THE SCALE IS LOCATED IN A HAZARDOUS AREA. DOING
SO WOULD VIOLATE THE INTRINSICALLY SAFE DESIGN, POSSIBLY CAUSING AN EXPLOSION RESULTING IN SERIOUS INJURY OR
DEATH.
Battery Charging
Batteries can be recharged using any standard charger designed to charge a 2000-2600 mAh NiMH AA cell. A charger is also available
from Arlyn Scales. Most commercial chargers cannot charge a single battery so batteries are commonly charged in pairs.
The battery section explains this in more detail below.
Caution
To remove the battery, the indicator must first be moved to a safe area.
• Place the power switch in the OFF or “0” position.
• Disconnect the load cell cable from the upper right side of the indicator.
• Loosen the thumbscrew and slide the indicator housing off of the “L” shaped mounting bracket.
• Remove the indicator from the hazardous area.
• Once in the safe area, the battery may be removed and charged.
• Visually inspect the inside of the empty battery holder to ensure that there are no foreign materials inside. Also check to
verify that there is no damage to any of the internal components.
• Insert a charged battery into the holder “PLUS” end first. Tighten the cover securely.
External Power Operation
The MKE-5-IS Display Indicator can be configured with the ability to be powered by an IS power supply or power supplies through
certain approved barriers with matching Entity Parameters. See Doc #4013 – Installation and Wiring Diagram for further details. This is
an optional method of powering the display indicator, available for purchase.
A typical external power supply configuration is a 4.3V DC supply from a safe (or unclassified area) passing through an ARL-BR-IS-PWR-
(LC)safety barrier before entering the indicator’s external power cable.
External Power Safety Considerations
• Make sure the external power source matches the entity parameters and specifications of the MKE-5-IS Digital Indicator.
• If using a Safety Barrier, only approved barriers with matching parameters can be used for this operation.
AT NO TIME WHATSOEVER SHOULD THE MKE-5-IS DISPLAY INDICATOR BE POWERED DIRECTLY FROM AN UNCLASSIFIED OUTLET OR
AN UNMATCHED APPROVED SOURCE OR BARRIER. DOING SO WOULD VIOLATE THE INTRINSICALLY SAFE DESIGN, POSSIBLY
CAUSING AN EXPLOSION RESULTING IN SERIOUS INJURY OR DEATH.
Switching Between External Power and Battery Operation
The indicator can only be powered using one power source at a time. All MKE-5-IS Display indicator units are equipped with a 3-state
SPDT (single pull double throw) rocker switch on the side of the indicator. The rocker switch is mapped as follows:
Do not attempt to remove the battery cover while the unit is located in a hazardous area. Doing so
will violate intrinsic safety, possibly causing an explosion or fire resulting in death or serious injury.

11
I -> Battery Operation
0 -> OFF
II -> External Power Operation
To utilize the external power supply (if available and connected), switch the indicator to “II”. The indicator will turn on once the supply
begins.
The battery does not get charged automatically when the external power supply is used to power the indicator. It needs to be charged
separately as indicated in various sections of this document.
SAW Load Cell Wiring
CAUTION
The MKE-5-IS Indicator for SAW Scales is equipped with a pig tail terminated with a 5-pin M12 connector. In order for FM approval to
be valid, the following must be adhered to:
• Only Arlyn, FM approved load cells may be used.
• Only ONE SAW Load Cell from the above list may be connected to the scale.
• The type and length of connecting cables must conform to the control drawings.
• The maximum total cable length is not to exceed 133ft!
• Please consult control drawing 4013 for details on wiring, maximum lengths and obtaining extra, approved cable.
LOAD CELL CONNECTOR
PIN FUNCTION COLOR
1 RS422_Z BROWN
2 RS422_Y WHITE
3 3.15VDC OUT BLUE
4 RS422_A BLACK
5 RS422_B GRAY
6 SHIELD (GND) BARE
Only Arlyn FM approved SAW Load Cells may be used for MKE-5-IS Indicators configured for SAW
Scale. The list of approved SAW Load Cells is as follows:
SAW-IS-X, SAW-IS-T, SAW-IS-L, SAW-IS-C, SAW-IS-H
SAW-IS-HL, SAW-IS-JL, SAW-IS-KL, SAW-IS-ML

12
CONTROLS AND INDICATORS
Main Display Screen
The scale is equipped with 128x64 LCD Graphics Display with a wide viewing angle and variable contrast. For normal operations, you
have a choice of viewing weight information from two main screens. For parts counting scales, two more screens are available. You can
switch screens by pressing the MENU key and then press ENTER to accept the “Next Screen” menu choice. Doing this will step through
the screens shown below in order. For non-counting scales screens 3 and 4 are skipped.
WEIGHT DISPLAY
Shows the weight on the platform in the current units setting.
COUNT DISPLAY
Shows the current piece count on the platform. If there are any totals in the accumulate register it will indicate
“pcs acc”
UNITS
Shows the active conversion units.
NET INDICATOR
Shows “Net” if the indicator is in net weighing mode.
STATUS/ZERO
Shows either “Zr” if the platform is at zero, a bar graph showing how close the scale is to maximum capacity or
“OVLD!” if the platform is overloaded.
TARE
DESCRIPTION
Shows the description of the active tare weight. If the tare was taken from the keyboard using the TARE key it will
show “From Keyboard”.
TARE WEIGHT
Shows the weight value of the active tare.
SAMPLE DESCR
Shows the description of the active sample weight. If the sample was taken from the keyboard using the SAMPLE
key it will show “From Keyboard”.
SAMPLE WEIGHT
Shows the weight value of the active sample.
Front Panel / Keyboard
The front panel has a twelve button, click touch key panel that allows easy menu navigation as well as full text and floating-point entry.
The main scale functions are shown in black, menu navigation and floating point numeric entry keys are blue and the secondary
functions are yellow.

13
Main Function Keys
ON/OFF
Press and hold to reboot the scale. On battery pack equipped scales, press and hold this key to power it down.
TARE
Tares any weight on the platform and switch the scale to the net mode. Hold the key down to clear the tare
NET/GROSS
Will toggle the indicator between the net and gross mode. The net mode will show the weight on the platform
minus any tared weight.
UNITS
Pressing this key allows you to step through the various activated Units.
ZERO
Will zero the indicator.
Menu Navigation Keys
MENU/BACK
Using this key from the weight display will access the setup menu. In all other areas, it is used to back out from
menus or to complete an operation.
ENTER
This key is used to select items and to complete operations in the various menus.
ARROWS
Use arrows to navigate and select menu items.
Secondary Function Keys
SAMPLE*
Used to acquire a quick parts-counting sample from the platform. Pressing and holding this key down will clear the
active sample. *Parts Counting Scales only.
ACCUM*
Used to add the piece count to the accumulate register allowing the totaling of parts. Pressing and holding this key
will clear the accumulate register. *Parts Counting Scales only.
? KEY
Used in various areas to call up help screens. In some areas this key needs to be pressed and held.
SHIFT
Used by the text-editing screen to toggle caps on/off.
CLEAR
Used in some editing screens to clear your input. In some areas this key needs to be pressed and held
NUMBER KEYS
Are used in various places to input floating point numbers.
Tare Net
Gross
Menu/
Back
Print Units
On/Off
Zero
Enter
.
7 8
123
0
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9
4 5 6
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ARLYN
SCALES
320M 1000 x .2 lb.

14
CALIBRATION
Recommendations
After familiarizing with various features and options available with the SAW Scale, please place the scale in the environment where the
scale will be mostly used to get the scale acclimatized with its current environment. Take into account that the scale needs to warm up
time of 10-15 minutes after boot-up.
Overview
❑
Before performing any calibration, the scale must undergo a Full Power Cycle. This means disconnect the scale from the
power supply, wait a full minute, and then reconnect it back to the power supply.
❑
Once the scale is back on, allow 5-10 minutes of warm up time for initialization and stabilization. Do not operate the scale
during this period.
❑
The scale is ready to be used. If accuracy is an issue, proceed to the next step.
❑
If the weight reading is off, perform Full Calibration as described below. Take note of any errors that may occur during this
time. If the Calibration results in an error, refer to the Troubleshooting section for solutions. It is strongly to power cycle the
scale once an error is encountered. This allows calibration to take place in a fresh state.
❑
If the Calibration fails repeatedly, or if problems with weight do not get resolved through Calibration, refer to Restore to
Factory Defaults to restore working factory parameters that are built into the scale.
SAW SCALE FULL CALIBRATION
If the scale is not showing accurate values for a given weight on the platform, perform a Full-Scale calibration as described below.
1. Scroll to PLATFORM SETUPS and press ENTER.
2. MENU button (#5) ---- setup menu screen will appear
3. In the Platform Setups Menu, scroll to SPAN CALIBRATION and press ENTER.
4. The next warning message warns you about the consequences of performing an incorrect calibration. Read the warning
message, and then press ENTER
5. Input the calibration weight on the space provided. The calibration weight must be at least 50% of full capacity. If you make a
mistake, press ZERO until the mistake clears.
6. Press ENTER to confirm input of calibration weight.
7. Remove all weight from the platform. The current weight is shown at the top left side of the screen. Make sure that the
reading is as stable as it can be. Then press ENTER.
8. Wait for the next prompt to appear.
9. When the prompt appears, place the known weight on the platform.
10. Wait for the raw count on the top left side of the screen to stabilize (about 5 seconds). Press ENTER to confirm the placing of
weight.
11. Wait for a few seconds until the calibration procedure completes.
12. Press MENU/BACK to go all the way back to the weight screen.
If at any time you received an error while performing this calibration, you must do a hard reboot of the scale (unplug the power
adapter out and then plug it into the outlet again) to retry the calibration. See the Troubleshooting section for description of errors.

15
CAP ZERO (Resetting the Capacity Sensor)
If the scale is turned on and the weight is not reading zero, or after placing the weight, the weight reading is not correct even after
performing a Full calibration, then the Capacity Sensor in the scale needs to be reset.
1. Press MENU button (#5) ---- setup menu screen will appear
2. Scroll to PLATFORM SETUPS and press ENTER.
3. In the Platform Setups Menu, scroll to CAP ZERO and press ENTER.
4. You will see the following message: “This will reset the capacity sensor. Remove all weight from the scale and press [ENTER]
to continue”.
5. Make sure there is no weight on the platform and press ENTER.
6. Once CAP ZERO procedure is complete, go back to the main screen and check to see if the weight is reading correctly.
SAW CORRECTION (Advanced Operation Only)
It is NOT recommended to perform this operation unless advised by a scale technician. The SAW Correction operation corrects the
sensor’s slope in case it was adversely affected due to abrupt environmental change. To perform this operation correctly and
effectively, the scale needs to be in a completely vibration-free and noise-free environment. Due to these stringent requirements,
the operation may fail 50% of the time.
1. Please follow the following steps to perform SAW Correction:
2. Plug-in the scale, wait at least 10 min to let the scale warm-up.
3. If the weight screen is not showing, press ON/OFF button on the indicator --- the weight screen will appear.
4. Press MENU button (#5) ---- setup menu screen will appear
5. Highlight PLATFORM SETUPS option (use the arrow buttons on the panel) and press ENTER button --- the Platform Setups
screen will appear.
6. Highlight SAW CORRECTION line and press ENTER button.
7. A prompt will appear asking you, “Would you like to perform a C1 parameter correction? Press [ENTER] to continue.” Press
the ENTER button to proceed.
8. A prompt will appear telling you to “Remove all weights from the scale and press [ENTER] to continue.”
9. Make sure there are no weights on the platform, then press the ENTER button again on this screen ----the “Processing…”
screen will appear. After sometime, the screen will turn back to Platform Setups.
10. Press MENU button several times until reading screen will appear.
11. Scale is ready to operate.
12. If a timeout occurs during this procedure, please unplug the scale and repeat calibration from the start.
QUICK CAP ZERO (Advanced Operation Only)
You can perform a quick SAW Correction within 3 button presses without going through the entire process listed above. To do this,
follow the proceeding steps.
1. Press SHIFT (ON/OFF key) + ZERO. A prompt will appear asking you to remove all weights on the platform.
2. Make sure there are no weights on the platform, then press the ENTER button again on this screen ----the “Processing” screen
will appear. After that, just wait until the process completes. If a failure happens, remove the power cord from the outlet and
then plug it in again. Then try the calibration process again.
That’s it. You don’t need to do anything else. Place a known weight on the platform to check if everything is reading okay.
If at any time you received an error while performing this calibration, you must do a hard reboot of the scale (unplug the power
adapter out and then plug it into the outlet again) to retry the calibration.

16
SYSTEM OPERATION
Basic Menu Operation
The scale operating system uses a menu driven interface that is both intuitive and easy to use. To access the setup menu press the
MENU/BACK key.
There are two basic menu types. The first is a simple list of items. To select an item in the list, use the UP and DOWN ARROW keys to
line up on the desired item and then press ENTER.
The second type of menu is a horizontal list displayed along the bottom of the screen. These menu items indicate operations to be
performed. To select one, use the RIGHT and LEFT ARROW keys to select the desired item and then press ENTER. Horizontal menus
may show a single or double headed arrow on the right side to indicate that there are more selections to the left and/or right that are
not displayed.
Horizontal menus and lists are often used together to perform an operation on a specific item. For example, to delete a tare entry, use
the UP and DOWN ARROWS to select the desired tare from the list, then use the LEFT and RIGHT ARROWS to select the menu item
“DEL” in the horizontal menu. Pressing ENTER will perform the operation.
Selecting menu items will often lead to other menus, sometime drilling down several levels deep. Use the MENU/BACK key to back
your way out. Continuing back will eventually bring you back to the top, which is the main weight display screen. Consult the menu
tree in the back of the manual for help in navigating menus.
Tare Functions
The tare function allows you to temporarily remove from the display any weight that may be on the platform. Tare weights are often
used in filling processes. For example, the user will place an empty box on the platform. The scale will indicate the weight of the box.
The user then presses the TARE key. The scale will now indicate a weight of zero, and will switch to the NET mode. The box can now be
filled. The scale will read out only the weight of the material. Switching to the GROSS mode will show the weight of the material plus
the weight of the box. To clear any active tare, press and hold the TARE key.
Tare Settings and Tare Definitions
Tares can also be taken, named, activated and stored permanently through the setup menu. Go to menu SETUP MENU/TARES. A list of
options is displayed on the screen, Tare Definitions and Tare Settings.
Tare Definitions
In this screen, a list of all tare definitions will be shown. To add a new tare, line up on NEW in the lower menu and then press ENTER. A
new tare will be added to the list with the default description of Tare #XXX. The number XXX is assigned by the system by counting up
the number of tares and then adding one. It is possible that after adding and deleting a few tares that two tares will have the same
description. This is acceptable, albeit confusing, and the description can be changed later. This new default tare will have a weight
value of 0.00 lb when first created.
Editing Tares
You can edit any tare by using the arrow keys to line up on it and the “EDIT” function in the lower menu and then press ENTER. The
next screen will show the tare with its description and weight value in pounds. The lower menu allows you to change the description
(“DESCR”), enter the value directly (“VALUE”) or acquire it automatically from the platform (“ACQUI”).
Deleting Tares
To delete a tare from the list simply line up on it and the “DEL” function in the lower menu. Press ENTER to delete it. Once a tare has
been deleted it is removed permanently from memory.

17
Activating Tares
To activate a tare from the list, line up on it and the “ACTV” function in the lower menu, then press ENTER. The tare will be made
active, the scale switched to NET mode and you will immediately be placed back in the weighing screen you were in when you
accessed the setup menu.
Tare Settings
In this screen, the way the tares behave can be changed. This also depends on what options you have installed in your system. The
selection settings can be changed using the horizontal menu at the bottom of the screen. The following selections apply.
Persistent Tare
Selecting this option to “Yes” will allow the scale to maintain the tare activation even when the power is recycled. This will apply to
both, stored tares and quick tares (tares from the keyboard). So, if the user activates a Tare from the Tare Definition Screen, and
recycles power, the scale will remember the last tare activated. Please note that when the scale is turned on the next time while a tare
has been activated, the scale will not show “0” with an empty platform. There will be negative number that will likely show up on the
screen corresponding to your tared value. Selecting this option to ”No” will remove the persistent tare feature. Tares will not be
remembered after power is recycled.
The System Menu
The system menu contains many useful features for checking and configuring your scale. To access, press the MENU button, then
select SETUP MENU->SYSTEM.
Any feature that is not described here should not be touched. An attempt to do so may severely affect your scale. Each feature is
outlined below.
Backup
Use this function to create a backup of the current scale configuration internally. Use this function and follow the prompts on screen to
perform a backup of your scale.
Restore
Use this function to restore a backup of a previous scale configuration. This is helpful if you already created a backup of your previous
working configuration. Use this function and follow the prompts on screen to restore of your scale to a previous backed up
configuration.
Restore to Factory Defaults
If the scale is not performing properly, and all other troubleshooting methods have failed, then the last resort is to restore the scale
back to its factory calibrated settings. Use this function and follow the prompts on the scale to complete it.
To restore the scale back to Factory Defaults, perform the following steps:
1. Completely unplug the scale. Wait for a few minutes, then re-plug power to the scale.
2. Press the MENU button and go to SYSTEM. Press ENTER.
3. In the System Menu, scroll to SAW Scale Setup and then press ENTER.
4. Scroll down and select RESTORE TO FACTORY DEFAULTS. Press ENTER.
5. If there are any warnings that popup, just press ENTER to confirm.
6. If the Restore was successful, the scale will automatically reboot.
7. Wait for the scale to settle.
8. Place a test weight to see if the scale is reading appropriately.
Startup Parameters
The following startup parameters can be set here:

18
1. The startup screen and conversion units can be set here.
2. Zero lock can be enabled/disabled. Zero lock disables the front panel ZERO key. When this function is enabled the user must
press the ZERO and the PRINT key simultaneously to zero the scale.
3. Show SAW ST Screen at Startup. This allows you to see the SAW Platform Status screen at startup. Disabled by default.
Scale Description / Scale ID Number
Each scale can be assigned a unique description and ID number. This is useful for printing labels and other processes.
Udef Conversion Multiplier
Allows you to enter the multiplier (from pounds) for the user-defined conversion.
Display Contrast
Allows you to adjust the contrast of the display for optimum viewing.
Display Refresh Interval (or Display Update Speed)
The Display Refresh Interval can be adjusted from .1 to six seconds.
Auto Shut-Off
Auto Shut-Off allows you to set your scale to automatically shut off when a preset time limit has been reached and there has been no
activity on the scale. This feature is mainly used on battery pack equipped scales to prevent the battery from inadvertently being deep
discharged. Auto Shut-Off can also work on non-battery equipped scales but its operation is slightly different. In a battery equipped
scale the unit will completely shut down and the display will blank. The scale can later be turned on again using the normal means. On
non-battery equipped scales, the display will blank but the scale will remain in the same condition as when it shut down. Zero, active
tare and active parts counting sample as well as the current screen will all be retained. Pressing any key will return the scale to its
normal operating mode.
An inactive scale can be defined as no keys being pressed, and there has been no activity on the platform. It should be noted that
anything that causes a small increase or decrease in the platform reading will be considered an active platform. Avoid vibrating
surfaces, digital filtering constants of non-factory default values, or anything else that causes the platform reading to drift if this
feature is used.
To configure Auto Shut-Off, go to the menu SETUP MENU/SYSTEM/AUTO SHUT-OFF. There are two settable options available.
Activate – ACT Activates/deactivates the auto shutoff feature.
Time Interval – TIME Is the time, in minutes, that the unit will shutoff due to inactivity. Any time from 1 to 25 minutes can be
used.
Decimal Truncation
This function allows you to truncate the least significant decimal place from the displayed weight. This does not affect the readability
and the accuracy of the scale. It also does not affect the weight outputs to the various communication options.
CONFIGURATION AND CALIBRATION
Platform Setup
To access the Platform Setup Menu, press the MENU button to bring up the Setup Menu. Select PLATFORM SETUPS option and press
ENTER.
The sections below describe what each selection does in this menu. Any option that is not described here should not be touched. Any
attempt to do so may severely affect your scale.

19
Important Selections
The two most important selections are:
❑
Span Calibration
❑
SAW Correction
Span Calibration
Span calibration adjusts the platform’s sensitivity so that the display reads correctly. A calibrated weight is required to perform this
and the procedure is outlined above in the SAW Scale Full Calibration section.
SAW Correction
This procedure corrects parametric deviances that naturally occurs over time with the SAW load cell. Whenever the scale starts to
show some odd behavior (such as weights not reading accurately, or slight jumping), this should be the first procedure to try to
mitigate these issues.
Other Items
Other selections on this menu are:
❑
Edit Description
❑
SAW Diagnostics
❑
*Resolution-Overload*
❑
CAP Zero
❑
Zero Tracking
❑
Stability Control
❑
Software Filter
❑
Zero/Motion Detect
❑
Auto Zero
❑
*Platform Auto Setup*
❑
Load Cell ID#
*These items are for Advanced Use only. Accessing and changing them in any way without proper supervision would adversely affect
your scale.
Parametric Settings
Edit
Description
Allows you to edit fourteen-character description can be assigned to the platform. The default description is “P1”. This should not be
changed for any reason unless you want to the description as part of your Print Frame. However, changing the description will not
affect the metrological properties of your scale.
Resolution-Overload
This setting should not be changed unless instructed by a Service Technician.
The scale has the capability of displaying its reading in any of eight standard conversion units. Only four are enabled by default and the
user can enable the rest. The conversion units that are automatically enabled are pounds, kilograms, grams and ounces. The remaining
conversions are troy ounces, pennyweights, grains and a user defined conversion.
Each conversion unit’s resolution can be set individually. To do this, select RESOLUTION-OVERLOAD from the platform menu. A list of
conversions is displayed and each active conversion will have a check mark to its right.

20
Select the conversion you wish to modify and press ENTER. Use ACTV to activate/deactivate it, DPNT to change its decimal point
location and CNT to change what the least significant displayed digit will count by. In the pounds configuration (the scale’s native
conversion unit) you can use OVRL to set the overload limit in pounds.
When setting resolution (DPNT and CNT) care must be taken not to exceed 5000 total displayed counts or a drifting reading may result.
The maximum resolution is setup by default by auto setup but can be calculated easily by taking the scale’s maximum capacity and
dividing it by 100,000. For example, a 50-pound scale’s resolution should be .01 pounds (50 / 100,000 = 0.0005).
CAP Zero
One of the sensors equipped in the scale is called a Capacitor Sensor. Sometimes, this sensor loses its Zero Reference value due to a
sudden change in environmental conditions or unexpected user interaction with the scale. This selection performs what’s termed as
“Capacitor Zero” operation of the scale. It basically restores the Zero Reference point of the Capacitor Sensor. This operation is useful
when the scale is not behaving properly and not weighing properly. When experiencing problems, if SAW Correction does not fix the
issue, then CAP Zero operation should be performed next.
Auto Zero
Auto Zero determines how the platform will zero on power up. The following selections apply.
Auto Zero – With this option selected, the scale will automatically zero out any weight on the platform. This is a good option for
environments that are not prone to power failures. Also, it is a great option if you always want to start the scale at zero regardless of
what the state of the platform (loaded or unloaded).
Last Zero – At initialization, the scale will zero out the platform to the last preserved zero state when the ZERO button was pressed.
This means that the scale remembers the last time the ZERO button was pressed. This results in the scale remembering the value of
the weight currently on its platform when the scale is shut off. In addition to that, suppose the weight was changed after the scale was
shut off, the next time the scale is turned out, it will show the new weight. This is an excellent option for environments prone to power
failures. It is also an excellent option if you need to constantly monitor the weight on the platform without interruptions.
None – The scale will initialize the platform based on its previous state. It is not a recommended to leave the scale in this option. The
scale may start up with an unknown state.
Filtering and Accuracy
Zero Tracking
A scale sitting for long periods of time without weight on the platform is prone to drift from zero due to temperature changes and a
number of other factors. Generally, this is not a problem and you can press the ZERO button to return the reading to zero before
weighing. Zero tracking, when enabled, will detect small reading changes over time and correct the platform back to zero.
There are four settable options on the setup screen. To modify them, use the left and right arrow keys to line up on the appropriate
entry in the horizontal menu located at the bottom of the screen, and then press ENTER. These menu items are as follows:
Active – ACTV: Activates or deactivates Zero Tracking.
Window – WIND: This is the window range above or below the current ZERO point that needs to be continuously compensated (up to
20% of full capacity) to correct zero shift. For example, over two days, you notice that the scale has shifted in weight by 0.2lbs, even
though there is no weight on the platform (and was originally reading perfect 0) or a weight that was constant over two days is now
reading 0.2lbs over. This is known as “Zero Shift” and can be corrected using Zero
Tracking. After studying the scale’s behavior on this aspect, we can plug this 0.2lb range in this Window field. Now you will notice that
your scale will zero out any deviations that falls within ±0.2lbs.