Rice Lake Digi DI-28 User manual

73356
DI-28
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DI-28 SERIES OPERATING MANUAL
SECTION INDEX PAGE NUMBER
1.0. GENERAL 2
1.1. Description 2
2.0. SPECIFICATIONS 3
2.1. Platforms & Capacities 3
2.2. Technical 4
3.0. INSTALLATION 5
3.1. Unpacking 5
3.2. Inspection 5
3.3. Repackaging 5
3.4. Mini Grand Unlocking Procedure 5-7
3.5. Mini Grand Assembly 8-9
4.0. ELECTRICAL TEST 10
4.1. Set-Up Procedure 10
4.2. Keyboard & Display Test 10
4.3. Control Panel 11
4.3.1. Lamps 11
4.3.2. Keys 11
5.0. OPERATION PROCEDURE 12
5.1. Power On 12
5.2. Tare Subtraction 12
5.2.1. One Touch Tare 12
5.2.2. Digital Tare 12
5.3. Battery Life Check 12
5.4. Set Point Value Entry 13
5.5. Changing Weight Units 13
6.0. PROGRAMMING 14
6.1. DI-28 Key Function Summery 14
6.2. Internal Count 14
6.3. Set Up And Calibration 15
6.4. Specification List 15-17
6.5. Span Adjustment 17-18
6.6. Span Enable Switch 18
7.0. DI-20 OPTIONS 19
7.1. Battery Option 19
7.2. Set Point Output, & Setpoint Wiring 21
7.3. RS-232, RS-232 Wiring 21-27
8.0. MAINTENANCE, CALIBRATION, TEST PROCEDURE, SERVICE 28
8.1. Maintenance Procedures 28
8.2. Service & Repair 29
8.3. Load Cell Wiring 29
8.4 Limited Warranty 30
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DI-28 OPERATING MANUAL
1.0. GENERAL
1.1. Features
The DI-28 Indicator offers a practical solution to a wide range of weighing applications.
There are a variety of weight capacities and increments available. The display resolution
is selectable from 1/2000 to 1/7500. It features RS-232 & 4 Setpoint outputs (factory
options) and keyboard calibration with auto-span. It operates on 6 “C” cell batteries or
with its AC/DC adapter. The DI-28 is able to support single load cells that have an output
range of 0.4mV/V to 4.0mV/V and is able to support up to 4 load cells when used with
the AC/DC adapter. This indicator features ON/OFF, REZERO, TARE, for both one
touch and digital key operation. A recharging circuit is incorporated for use with
rechargeable NiCAD batteries. For a list of platforms sizes and available capacities see
page 3.
This instruction manual will provide the user with all the information necessary to
understand, set-up and operate the DI-28 scale. Included in this manual are descriptions,
specifications, drawings, and operating instructions.
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2.0. SPECIFICATIONS
This section includes a detailed listing of all pertinent specifications and parameters for each of
the DI-28 weighing scales. The system weighing accuracy is 0.02 % for all models and they
meet or exceed the requirements of OIML Class III and NIST Handbook, Number 44.
2.1 Platforms
The following is a list of platforms :
Model Platform
Size/Platter Capacities
S-AL bench 12” x 14” x3” 1 LB. 5 LB. 10 LB. 25 LB. 50 LB.
S-SL bench / floor 13” x 17” 60 LB. 150 LB. 300 LB.
S-TL floor 17” x 21” 150 LB. 300 LB. 500 LB. 1000 LB.
S-UL floor 24” x 28” 150 LB. 300 LB. 500 LB. 1000 LB.
S-PL floor 30” x 30”
36” x 36” 1000 lb. to 3000 lb.
S-PL floor 48” x 48”
48” x 72”
60” x 60”
60” x 84”
2500 lb.
to
25000 lb.
Ramps , Other Capacities And Stainless Steel Platforms Also Available
Choosing A Capacity :Decimal Location (*) Minimum Weight (*) Display Resolution (=) Capacity
Decimal
Location Minimum Weight Display Resolution Available Capacities
0.0000 1 1 / 2000 1lb,2.5lb,3lb.,5lb.,6lb,.
0.000 2 1 / 2500 10lb.,25lb.,30lb.,50lb.,
0.00 5 1 / 3000 60lb.,75lb.,100lb.,125lb
0.0 1 / 5000 150lb.,200lb.,250lb.,
0 1 / 6000 300lb.,375lb.,500lb.,
1 / 7500 600lb.,750lb.,1000lb.,
1500lb.,2000lb.,2500lb.
3000lb.,3750lb.,5000lb.
6000lb.,7500lb.,10000lb
Example: dec. loc. (*) min. wt. (*) disp. res. = avail cap.
0.00 (*) 5 (*) 1 / 7500 = 375. 00 lb.
* Units can be programmed to primarily weigh in lb., oz., kg., g., or dwt.
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2.2. SPECIFICATIONS Technical
2.2.1. Id Plate :
Model # DI-28
Serial #
Power Dissipation .3w
Voltage Battery size C 6x1.5v or 12v AC Adapter
2.2.2. Operating Conditions :
Power source : AC/DC adapter (12V, Digi Model PS-100 only, See 2.2.4.
below) or 6x 1.5V size C battery, alkaline or rechargeable.
Temperature Range : -10°to +40°C.
Humidity : 15% to 85% R.H.
Power Consumption : 0.3 to 1.5 Watts.
2.2.3. Display Specifications
Display Device: LCD (Liquid Crystal Display)
Character Height, 25mm.
No. of Digits: 6 Digits (including minus sign digit)
2.2.4. AC/DC Adapter Specifications
a) 9.5±0.5mm
b) Inside 2.1±0.5mm
Outside 5.5±0.5mm
a
b
+
++
+ −
−−
−
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3.0. INSTALLATION
This section provides the information required for installation of the DI-28 weight indicator.
The following steps accomplish installation.
1. Unpacking
2. Set-up Procedure
3.1. Unpacking
Each component of the DI-28 is packed in a specially designed carton. Remove each
component from the carton, separate the component from its polystyrene shell assembly
and set aside. Inspect the carton interior to be sure that all accessories have been
removed from the carton. Inspect the carton inner panels for accessories.
NOTE: Be sure to repack all materials within the carton set. Store the cartons in a
secure area so they can be available whenever shipment of the scale is required.
3.2. Inspection
Immediately after unpacking, a visual inspection of the instrument should be performed.
If any damage has been incurred during transportation the shipper and DIGI MATEX
INC. should be notified immediately. Instructions for assessment of damage and further
procedures will then be determined.
3.3. Repackaging
If, at anytime, the DI-28 weight indicator must be returned for modification, calibration,
or repair, be sure that it is properly packed with sufficient cushioning materials.
Whenever possible, the original carton assembly should be retained for this purpose.
Any damage caused by improper packaging will not be covered by warranty.
3.4. Platform Unlocking Procedure
The unlocking procedure is different for each style of platform and is included on
the following pages.
3.5. Mini Grand Pole Assembly
The optional pole mounting kit comes with all the necessary hardware and assembly
is easy. See pages 8 & 9 for details.
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3.4.1. Unlocking Procedure
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3.4.2. Unlocking Procedure
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3.5.1. Mini Grand Assembly
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3.5.2. DI-28 Adapter Plate
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4.0. ELECTRICAL TEST
4.1. Set-up Procedure
This part of the procedure is used to verify proper operation of the scale.
Connect the AC power source, and press the [ON/OFF] key. At turn-on, the display will
momentarily show the version number then, all digits from 0 to 9 in a “count-up” mode.
Then the display will blank, show all “8’s”, and enter the regular operating display.
If at any time the scale displays erratic data, it may be caused by a power transient. Turn
the scale “off” and momentarily unplug it from the wall outlet. Then restart, by plugging
the scale back in and pressing the [ON/OFF] key.
4.2. Keyboard and Display
This part of the procedure is used to verify proper operation of various switches and
displays. The following functions will be tested in this procedure:
A. Tare Entry
B. Digital Tare Entry
4.2.1. One Touch Tare
a. Press [REZERO] key, to rezero the scale.
b. Place the empty container on the scale and press the [TARE] key once.
The Weight Display should now read zero with the empty container on the
scale.
4.2.2. Digital Tare Entry
a. Press the [REZERO] key. After resetting, the display will resd zero.
b. Enter the number 0.2 by using the keyboard, select the digit to change
using [ ←
←←
←DIGIT ] key, then press [ ↑
↑↑
↑INCR ]key for the desired Tare
value. Then press the [TARE] key.
The Weight Display will show the weight entered with a negative sign
indicating that the weight displayed is a Tare Weight.
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4.3. Control Panels
4.3.1. Keys
Key Name Functions
ON/OFF Turn power on or off.
REZERO
Reset the weight to zero.
TARE Enter or clear tare value.
DIGIT SELECT Select the digits to set tare or setpoint value.
INCREASE
Increase the value of tare or setpoint weight on
selected digit when setting data. Manual transmit
key for RS-232 output.
4.3.2. Lamps
Indicators Name Functions
BATTERY LAMP
On when battery becomes too weak and needs to
be replaced/ recharged.


O

ZERO LAMP On when weight is stable at zero point.
NET NET LAMP On when tare is subtracted.
g GRAM LAMP On when grams are used as weighing unit.
lb/kg LB/KG LAMP On when pounds are used as weighing unit.
O
T


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5. Operation Procedure
5.1 Power On
PROCEDURE KEY OPERATION DISPLAY REMARKS
Connect DI-28 to power supply.
1. Make sure nothing is on the platform,
and press [ON/OFF] key. Ver0.01
Show Software Version
000000
Segment check starts.
888888
0.000 Ready for weighing
5.2 Tare Subtraction
5.2a One touch tare
PROCEDURE KEY OPERATION DISPLAY INDICATOR
0NET
Stand-by status 0.000 ♦
1. Place tare weight on the platform. e.g. 0.010 kg 0.010
2. Press [TARE] key.
0.000
♦
3. Remove the tare weight. -0.010 ♦♦
Note 1) To clear the tare weight, remove tare from the load receptor then, press [TARE] key.
5.2b Digital tare entry (When the tare weight is known)
PROCEDURE KEY OPERATION DISPLAY INDICATOR
0NET
Stand-by status 0.000 ♦
1. Move cursor to the left two digits.
, t00.0”0”0
2. Set tare value by increasing the
value.
, t00.0”2”0
3. Enter the tare value. -0.020 ♦♦
Note 1) To clear the tare weight, press [TARE] key.
Note 2) “0” and “2” means that the cursor is blinking.
5.3. Battery Life Check
The battery life can be checked
PROCEDURE KEY OPERATION DISPLAY INDICATOR
0NET
Stand-by status 0.000 ♦
1. Press [TARE], [

], [TARE] key
while pressing [RE-ZERO] key.
+, ,
2. Press [TARE] key to be back to
weighing mode. 0.000
♦
The number of boxes in the display indicates the battery power. When batteries are fully charged, 6 boxes appear.
As the battery is running out of power, the number of boxes will decrease gradually.

0
T


T

T
T
T
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5.4 Setpoint Value Entry
PROCEDURE KEY OPERATION DISPLAY INDICATOR
0NET g lb
Stand-by status 0.000 ♦
1. Enter the setpoint entry mode by
pressing [

] three times while
pressing [RE-ZERO] key.
+, ,
00.000
2. Enter Setpoint 1 value by using [

]
and [

]keys.
,
01.000
3. Store the data.
00.000
4. Enter Setpoint 2 value by using [

] and
[

]keys.
, ,
02.000
5. Store the data.
00.000
6. Enter Setpoint 3 value by using [

] and
[

] keys.
, , ,
03.000
7. Store the data.
00.000
8. Enter Setpoint 4 value by using [

]
and [

]keys.
04.000
9. Store the data.
0.000 ♦
Note: To exit from setpoint entry mode without storing the data, press [TARE] key instead of [RE-ZERO] key.
5.5. Changing Weight Units (kg , g , lb)
PROCEDURE KEY OPERATION DISPLAY INDICATOR
0
N
ET g lb
Stand-by status 0.000 ♦
1. Allow user to switch between
KG, g and lb. (Assuming scale is
calibrated in KG.)
5.000
(Ex. 5kg)
2. To switch to g
Press [REZERO] key and hold followed
by [

] then release [REZERO]
+ 5000
(Ex. 5000g)
♦
3. To switch to lb
Press [REZERO] key and hold followed
by [

] then release [REZERO]
+ 11.023
(Ex. 11.023lb)
♦
4. To switch to kg
Press [REZERO] key and hold followed
by [

] then release [REZERO]
+ 5.000
(Ex. 5kg)

 
0
0
0
0
0
0
0
0

 


 




 


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6.0. PROGRAM MODE
6.1. DI-28 Key Function Summary
KEY REZERO TARE
←
←←
←DIGIT ↑
↑↑
↑INCREASE
INTERNAL COUNT
REZERO (D D T) REZERO EXIT - - - - CHANGE MODE
OPERATIONAL SPECS
REZRO (D D D) STORE & INCREMENT
SPEC
EXIT INPUT 0 INPUT 1
W & M SPECS
REZERO (D T D) STORE & INCREMENT
SPEC
EXIT INPUT 0 INPUT 1
SPAN ADJUSTMENT
REZERO (D T T) STORE / RDY FOR CAL EXIT SELECT DIGIT INCREASE NUMBER
SET POINT
PROGRAMMING
REZERO ( I I I )
STORE &
INCREMENT
SET POINT
EXIT SELECT
DIGIT INCREASE NUMBER
SPAN SWITCH STATUS
REZERO (T D D) - - - - - - - - - - - - - - - -
BATTERY LIFE CHECK
REZERO ( T D T) - - - - EXIT - - - - - - - -
D = ←
←←
←DIGIT I = ↑
↑↑
↑INCR T = TARE
6.2. Internal Count
This function is provided to check the internal count value from the A/D (pre-amp)
To Enter Internal AD Count Mode
1. Press and hold down the [REZERO] key.
2. While holding , press the [←
←←
←DIGIT] key two times, the [TARE] key once.
3. Then release the [REZERO] key.
In This Mode, Each Key Functions As Follows
[↑
↑↑
↑INCREASE] key Used to switch between internal count and A/D
Raw Data
[REZERO] key Used to rezero the internal counts
[TARE] key Used to exit from internal count mode
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6.3. Set Up And Calibration
6.3.1. Specification Change
Function key for spec. change.
Accessing Operational Specs. (50 - 59)
1. Press and hold down the [REZERO] key.
2. While holding , press the [←
←←
←DIGIT] key three times .
3. Then release the [REZERO] key.
In This Mode, Each Key Functions As Follows
[←
←←
←DIGIT] key Used to input 0
[↑
↑↑
↑INCREASE] key Used to input 1
[REZERO] key Used to save the specification and increment to
the next specification
[TARE] key Used to exit from specification mode
THE SLEEP TIMER IS LOCATED IN OPERATIONAL SPECS.
Spec.50 = sleep timer ( 0000 = none to 1111 = 15 min. )
6.3.2. Specification Change (Continued)
Function key for spec. change.
Accessing Weights & Measures Specs. (00 - 09 / 20 - 29)
1. Press and hold down the [REZERO] key.
2. While holding , press the [←
←←
←DIGIT] key, the [TARE] key, the[←
←←
←DIGIT] key.
3. Then release the [REZERO] key.
In This Mode, Each Key Functions As Follows
[←
←←
←DIGIT] key Used to input 0
[↑
↑↑
↑INCREASE] key Used to input 1
[REZERO] key Used to save the specification and increment to
the next specification
[TARE] key Used to exit from specification mode
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6.4. Di - 28 Specification List
6.4.1. DI - 28 W & M Specs.
W & M SPECS. PRESS AND HOLD REZERO THEN PRESS (D - T - D)
Spc. No. BIT 3 BIT 2 BIT 1 BIT 0
Spec. 00 Not Used
Spec. 01 Comma or Dec. Pt. Not Used Decimal Point Position
0 =comma, 1= dec.pt. 00 = no dec.pos.
01 = one dec.pos. 10 = two dec.pos. 11 = three dec.pos.
Spec. 2 Not Used
Spec. 3 Change Weight Units
0 = no, 1 = yes Scale Type 0 = kg , 1 = lb Internal Count When Span SW off
0 = no, 1 = yes
Not Used
Spec. 04-09 Not Used
Spec. 20 Tare Accumulate
0 = no, 1 = yes Not Used Digital Tare 0 = no, 1 = yes Tare Limit 0= 50%, 1 = 100%
Spec. 21 One Touch Tare Clear
0 = no, 1 = yes Rezero In Tare 0 = no, 1 = yes Not Used Not Used
Spec. 22-23 Not Used
Spec. 24 load cell sensitivity (mv/V)
0000 = 4.00mV/V
0001 = 3.75mV/V
0010 = 3.50mV/V
0011 = 3.25mV/V
0100 = 3.00mV/V
0101 = 2.75mV/V
0110 = 2.50mV/V
0111 = 2.25mV/V
1000 = 2.00mV/V
1001 = 1.75mV/V
1010 = 1.50mV/V
1011 = 1.25mV/V
1100 = 1.00mV/V
1101 = 0.80mV/V
1110 = 0.70mV/V
1111 = 0.60mV/V
Spec. 25 Not Used Not Used Ignore Span Switch
0 = no, 1 = yes Recall Zero 0 = no, 1 = yes
Spec. 26-27 Not Used
Spec. 28 Not Used Minus Weight
0 = 9 ext. increments,
1 = No Limit
Zero Reset Range
0 =±10% , 1 =±100% Re-Zero Range 0 = ±2 % , 1 = ±100%
Spec. 29 Not Used
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6.4. DI - 28 Specification List (Continued)
6.4.2. DI - 28 Operational Specs.
OPERATIONAL SPECS. PRESS AND HOLD REZERO THEN PRESS (D - D - D)
Spc. No. BIT 3 BIT 2 BIT 1 BIT 0
Spec. 50 Sleep Timer
0000 = None
0001 = 1 Min.
0010 = 2 Min.
0011 = 3 Min.
0100 = 4 Min.
0101 = 5 Min.
0110 = 6 Min.
0111 = 7 Min.
1000 = 8 Min.
1001 = 9 Min.
1010 = 10 Min.
1011 = 11 Min.
1100 = 12 Min.
1101 = 13 Min.
1110 = 14 Min.
1111 = 15 Min.
Spec. 51 Not Used Power Save
0 = no, 1 = yes Motion Detection 0 = strong ,
1 = weak
Animal Mode
0 = no, 1 = yes
Spec. 52 Handshaking for
RS-232
0 = no, 1 = yes
Send STX Before
Text
0 = no, 1 = yes
Set Point Output
0 = active low,
1= active high
Set Point
0 = disable,
1 = enable
Spec. 53 RS-232 Stable Flag
0 = without flag
1 = with stable flag
RS-232 Data Format
0 = without header
1 = with header
Non-Stable Output
0 = no, 1 = yes Send Header As Text
0 = no, 1 = yes
Spec. 54 RS - 232 Output
0 = Disable
1 = Enable
0 0 0 = 1200 bps
0 1 1 = 9600 bps
Baud Rate
0 0 1 = 2400 bps
1 0 0 = 19200 bps
0 1 0 = 4800 bps
Spec. 55 Parity
0 0 = no parity 0 1 = odd
1 0 = even
Stop Bit
0 = 1 bit
1 = 2 bits
Data Length
0 = 7 bits
1 = 8 bits
Spec. 56-58 Not Used
Spec. 59 Remote Trigger
0 = Disable
1 = Enable
Communication
Mode
0 = stream
1 = manual
RS-232 Time Out
0 0 = 1 sec.
0 1 = 3 sec.
1 0 = 5 sec.
1 1 = 10 sec.
6.5.1. Span Adjustment
This Mode Is Provided To Calibrate Scale
Accessing Calibration Mode
1. Press and hold down the [REZERO] key.
2. While holding , press the [←
←←
←DIGIT] key, the [TARE] key, the [TARE] key.
3. Then release the [REZERO] key.
In This Mode, Each Key Functions As Follows
[↑
↑↑
↑INCREASE] key Used to increase value of digit
[←
←←
←DIGIT] key Used to change digits as needed
[REZERO] key Used to save changes and advance through calibration
[TARE] key Used to exit calibration mode without saving changes
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6.5.2. Calibration Procedure
PROCEDURE KEY OPERATION DISPLAY Remarks
1. Enter calibration mode. [REZERO] [←
←←
←DIGIT]
[TARE] [TARE] 888888 Press and hold [REZERO] key
while pressing [DIGIT], [TARE],
| 1 [TARE] then release [REZERO] key.
2. Enter the minimum display. [↑
↑↑
↑INCR] | 2 Press [↑
↑↑
↑INCR] key. (Ex. 0.002)
[REZERO] [00.000
∇Press [REZERO] to advance through
calibration
3. Enter the capacity weight. [←
←←
←] [ ↑
↑↑
↑] [ ↑
↑↑
↑] [ ↑
↑↑
↑] [ ↑
↑↑
↑]
[ ↑
↑↑
↑] [ ↑
↑↑
↑] [06.000
∇Press [DIGIT] once and [↑
↑↑
↑INCR] key
six times. (Ex. 6KG)
[REZERO] 〈06.000
∇Press [REZERO] to advance through
calibration
4. Enter weight to be used for
calibration. (If other than
capacity.)
[←
←←
←] [ ↑
↑↑
↑] [ ↑
↑↑
↑] [ ↑
↑↑
↑] [ ↑
↑↑
↑]
[ ↑
↑↑
↑] [ ↑
↑↑
↑] 〈02.000
∇Press [DIGIT] once and [↑
↑↑
↑INCR] key
six times. (Ex. 2KG)
[REZERO] CAL 0 Press [REZERO] to advance through
calibration
5. Set zero point. [REZERO] CAL SP
6. Place weight on platter
from step 4. [REZERO] xxxxxx When calibration is complete scale shows internal count.
7. Exit internal count mode. [TARE] xx.xxx Press [TARE] key to return to
weighing mode.
8. Rezero scale place weight
on scale to test calibration. [REZERO]
6.6. Span Enable Switch Check
This Mode Is Provided To Check The Status of The Span Switch. The SPAN SWITCH is
on the main board near the pre-amp housing and is labeled JP 1. See Figure on Page 19.
Accessing Mode
1. Press and hold down the [REZERO] key.
2. While holding , press the[TARE] key, the[←
←←
←DIGIT] key, the [←
←←
←DIGIT] key.
3. Then release the [REZERO] key.
When Calibration is enabled Display Shows : S- ON
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