Doran 300 Setup guide

Digital Bench Scale
INSTRUCTION MANUAL
DORAN SCALES, INC.
1315 PARAMOUNT PKWY.
1-800-262-6844
FAX [phone]
http //www.doranscales.com
MANUAL REVISION 2.1
MAN0193 3/8/2006
Model 300
Made in USA

Table of Contents
Table of Contents .....................................................................................1
Introd ction...............................................................................................3
Q ick Start User's G ide..........................................................................4
Fig. 1 Model 300 Front Panel Layout ....................................................................... 4
Power Up .................................................................................................................... 4
Basic Weighing Operation ........................................................................................... 4
Turn Off (Battery option only) ...................................................................................... 4
Controls and Display Operation .................................................................................. 4
Zero ............................................................................................................................. 5
Units ............................................................................................................................ 5
Print (Optional) ............................................................................................................ 5
Battery Operation (Optional) ....................................................................................... 5
Low Battery Indication (Optional) ................................................................................ 6
Installation ................................................................................................................... 6
Electrical Connections ................................................................................................. 6
Q ick Set p G ide....................................................................................7
Load Cell and Power Connections .............................................................................. 7
Fig. 2 Load Cell connections .................................................................................... 7
Option Connections ..................................................................................................... 7
Fig. 3 Remote Push Button Connections ................................................................. 8
Calibration ................................................................................................................... 8
Analog Setup ............................................................................................................... 9
Table 1 Calibration requirements in raw counts ....................................................... 9
Detailed Parameter Set p ......................................................................10
Entering and Exiting the Calibration Setup Menu ..................................................... 10
Fig. 4 Quick Access Panel ..................................................................................... 10
Stepping through the menu parameters .................................................................... 10
Changing a Parameter .............................................................................................. 11
Quick Review of Setup Parameters ........................................................................... 11
Legal for Trade Restrictions ...................................................................................... 11
Set p Men s Explained..........................................................................12
Capacity Setup Menu .............................................................................................. 13
Calibration Menu ..................................................................................................... 14
Digital Filter Setup Menu ......................................................................................... 15
Automatic Zero Tracking Setup Menu ..................................................................... 15
Motion Aperture Setup Menu .................................................................................. 16
Start Up Zero Setup Menu ...................................................................................... 16
Latching Zero Request Setup Menu........................................................................ 16
Latching Print Request Setup Menu........................................................................ 16
Printer Data Output Setup Menu ............................................................................. 17
Output Formats ....................................................................................................... 17
Baud Rate Setup Menu ........................................................................................... 17
Serial Data Handshaking Setup Menu .................................................................... 18
Units Conversion Setup Menu................................................................................. 18

Start Up Units Selection Menu ................................................................................ 18
Push-button Function Setup Menu.......................................................................... 19
Remote Push-button Configuration Menu ............................................................... 19
Legal For Trade Setup Menu .................................................................................. 19
Scale Resolution Setup Menu ................................................................................. 19
Unit On Timer (Battery only).................................................................................... 20
Raw Counts Display Mode ...................................................................................... 20
Configuration Menu Exit .......................................................................................... 20
Data Comm nications............................................................................21
Introduction to data communications ......................................................................... 21
Printer Modes ............................................................................................................ 22
Transmit on demand (tod) ...................................................................................... 22
Continuous print (CP) ............................................................................................. 22
Auto Print 1 (AP1) .................................................................................................. 22
Auto Print 2 (AP2) .................................................................................................. 22
Data output format ..................................................................................................... 23
"F0" Format ............................................................................................................ 23
"2d" Format ............................................................................................................ 23
"SSP" format .......................................................................................................... 23
Table 4 Standard Doran serial protocol.................................................................. 24
Table 5 SMA serial protocol ................................................................................... 25
Table 6 Toledo serial protocol ................................................................................ 26
Table 7 Fairbanks and UPS serial protocol ............................................................ 27
Table 8 NCI serial protocol..................................................................................... 27
Specifications and Interconnect Data ...................................................28
Specifications ............................................................................................................ 28
Table 9 Scale Specifications .................................................................................. 28
Interconnect Data ...................................................................................................... 28
Table 10 TB1 Load Cell Connections..................................................................... 28
Table 11 P2 Options Connections.......................................................................... 29
Table 12 J1 Power Connections ............................................................................ 29
Table 13 P3 Keyboard Connections....................................................................... 29
Fig. 5 Connector J2, Remote switch cable assembly ............................................. 29
Fig. 6 P6 RS232 Output DB9 Connector................................................................ 30
Table 14 Serial Output pin description ................................................................... 30
Tro bleshooting .....................................................................................31
General problem resolution ....................................................................................... 31
Resetting the scale parameters ................................................................................. 32
Resetting the scale .................................................................................................... 32
Scale Messages ........................................................................................................ 33
Error messages ......................................................................................................... 33
Application Note .....................................................................................34
Description ................................................................................................................ 34
Hardware Setup ........................................................................................................ 34
Software Setup .......................................................................................................... 34
Warranty Statement................................................................................36

Introd ction
Introducing the Doran Scales, Inc. Model 300 Digital Bench Scale. This scale uses state
of the art technology to provide you with a low cost solution to the most demanding
weighing applications. With ease of use and setup in mind, the scale is simple to set up
and ready to use. The Model 300 offers many features. A few of these features are
listed below
 NTEP certification for Class III installations to 5,000d.
 A six digit, 0.56" red LED display for easy reading.
 lb, kg, oz, g, lb-oz display units supported.
 Fully configurable duplex printer port with RS232 support.
 EEPROM nonvolatile data storage of all calibration and setup information.
 Microprocessor monitoring system to prevent scale failure under severe
fault conditions.
 115/230 VAC 50/60 Hz (jumper selectable) operation.
 Field selectable digital filtering.
 Software configurable remote push-button support (Optional).
 60 hour of battery operation, with built in charger. (Optional).
 Six digit, 0.56" red LED remote display (Optional).
Please be sure to read the entire manual to ensure obtaining all the benefits that the
Model 300 can provide. If any questions arise, please feel free to contact the Doran
Scales Technical Support Department at 1-800-262-6844.
Unpacking Yo r Scale
Before unpacking your Doran scale, please read the instructions in this section. Your
new scale is a durable industrial product, but it is also a sensitive weighing instrument.
Normal care should be taken when handling and using this product. Improper handling
or abuse can damage the scale and result in costly repairs that will not be covered by
the warranty. If you notice any shipping damage, notify the shipper immediately. Please
observe the following precautions to insure years of trouble free service from your new
scale.
 DO NOT drop the scale.
 DO NOT immerse the scale.
 DO NOT drop objects on the platform.
 DO NOT pick up the scale by the "spider."
 Carefully remove the scale from the shipping carton.

Q ick Start User's G ide
Fig. 1: Model 300 Front Panel Layo t
Power Up:
Connect the Model 300 to a compatible power source. Or, press and release ZERO to
turn on, for scale with battery option.
Basic Weighing Operation:
1) Remove all items from the scale platter.
2) Press ZERO to zero the scale. The weight display should now read zero.
3) Place an item on scale platter and wait for the motion (MOT) indicator to go out,
indicating a stable weight.
4) Read the weight on the scale display.
T rn Off: (Battery option only)
1) To turn off manually, press and hold the ZERO push button until the display shows
"rel Pb." Then release, the ZERO button and, the indicator will turn off, or…
2) Indicator will turn off automatically at the end of the programmed power on time
delay when that mode is selected.
Controls and Display Operation:
The operational controls for the Model 300 consist of the ZERO (on/off on battery
option), UNITS, and an optional PRINT button. A six digit LED display is used to
provide weight indications and operator messages describing scale operation. Scale
status such as motion (MOT), polarity (NEG), center of zero (ZERO), and optional low
battery (BATT) are displayed on annunciators located to the left of the display area.
Scale units are indicated on four annunciators located to the right of the main weight
display.

Zero:
The ZERO button is used to zero the scale prior to making a reading. The ZERO button
can function over the full range of the scale or it can be limited to a zero band equal to
+1.9% of scale capacity for Canadian applications. To zero the scale, wait until the
scale is stable and press the ZERO button. The scale will zero immediately. The scale
will not "zero" if the scale is in motion.
Units:
The UNITS button permits the operator to change the Model 300 display weight units
easily. Simply press the UNITS button and the scale will indicate the correct weight in
the new units, lb, kg, g, oz, lb-oz.
Print: (Optional)
The PRINT button permits the operator to print the current weight or send a data stream
to an external device. Like the ZERO button, the user must wait for motion to stop
before pressing the PRINT button. The current weight will then be transmitted to the
printer or external device.
Battery Operation: (Optional)
The Model 300 is equipped with a self-contained rechargeable, sealed, gelled-
electrolyte battery and charging circuit. The scale is designed to run continuously for 60
hours on a fully charged battery.
The built-in charging circuit will fully charge the battery in approximately four hours. To
charge the battery, simply plug the line cord into a standard 115V (230V optional) wall
outlet.
The Model 300 can be used while recharging the battery. A full recharge takes place in
four hours, whether the scale is on or off, in fact the Model 300 can be used with the AC
charger cord plugged in on a continuous basis.
If an AC power failure occurs, the Model 300 battery takes over immediately to provide
uninterrupted scale operation for up to 60 hours.

Low Battery Indication: (Optional)
The "BATT" indicator indicates that the battery is in need of recharging. Once the
"BATT" indicator turns on, there will be approximately one more hour of battery life
before the scale shuts down. When the battery is too low to run the scale, the Model
300 simply turns off and will not operate again until the battery is recharged. The Model
300 remains accurate and useable even with the "BATT" on.
Note:Battery life can vary depending on the following
 The operating temperature.
 If optional remote display is installed.
 Whether or not the battery is fully charged after each low battery event.
Installation:
The desired scale location should be flat, level and free of any obstructions which might
interfere with the operation of the scale platter. Remove the platter and locate the
bubble level inside the base. Adjust the four scale feet so the bubble is centered with
the base stable so it does not rock.
When installing your scale, make sure that the power connection is close to the scale
and easily accessible.
Electrical Connections:
Prior to connecting your Model 300 to power, check the serial number tag on the scale
for the correct operating voltage. Verify that the power matches the rated voltage.
Be sure the AC power is not excessively noisy - this can occur if large inductive loads,
such as solenoids or motors, are on the same power line. The Model 300 has a filtered
power supply to reduce the effects of normal line noise, but they cannot limit severe
fluctuations. If problems occur, noise producing devices may have to be suppressed to
minimize their effect.

Q ick Set p G ide
Load Cell and Power Connections:
Load cell connections are made through a terminal block located at the bottom center of
the main PC. Board (Fig. 2). The power cord connects to a connector adjacent to the
transformer. These connections are accessible by removing the scale platter and
access cover.
Fig. 2: Load Cell connections
The Calibration button (S5), located on main PC. Board (Fig. 4), can be accessed by
removing the scale platter and access cover. There are no zero jumpers, span jumpers,
buttons or pots to adjust scale calibration.
Option Connections:
The Remote Switch connector is found on the topside of the main PC. board (see Fig.
3). This connection is accessed by removing the access cover. Connections are made
by pressing plug on the Remote Switch cable, into the option connector P2 found on the
main board. Like the load cell cable and power cord, the option cables are passed
through a slot located between access cover and the back inside of the indicator base.
+ Signal
- Signal
+ Excitation
- Excitation
+ Sense
- Sense
Remove JU7 & JU8 when
connecting a 6 wire loadcell

Fig. 3: Remote P sh B tton Connections
Calibration:
1) Enter Calibration mode by pressing the CAL button (S1 or S5) (see Fig. 4). Press
and release the UNITS button (S2 or S6) until "CAL 0" appears on the display.
Place scale platter back on top of platform.
2) Remove all weight from the scale platter and wait for about 10 seconds. Press
ZERO and wait for the display to count down to 0. If the calibration zero was in
range, the display will return with "CAL FS". If the display returns with a "CAL 0".
Repeat the process.
NOTE: If "rg Err" appears on the display, the calibration zero is out of range. Press
ZERO to clear error. Refer to the analog setup section for additional information.
3) The scale can be calibrated using (a) full capacity weight, (b) half capacity, (c)
quarter capacity, or (d) one tenth capacity. To select the weight to calibrate the
scale, press the UNITS (S6) button and select one of four following capacities.
CAL FS Full load calibration.
CAL .50 Half load calibration. (50% of full load)
CAL .25 Quarter load calibration. (25% of full load)
CAL .10 1/10th load calibration. (10% of full load)
J4
J4B
Remote Display
Remote Switch
GND.

4) To complete the calibration process, place the correct weight on the platter and
press ZERO, wait for the display to count down to 0. If the span calibration was in
range, the display will return with "donE". If the display returns with a "CAL 0",
repeat steps 2 and 3.
NOTE: If "SPAn E" appears on the display, the calibration span is out of range. Press
ZERO to clear error. Refer to the analog setup section for additional information.
NOTE: Scales calibrated at 10% of capacity are more likely to have significant errors at
full capacity than are scales calibrated at 25% or 50%. Doran Scales recommends that
all scales be calibrated at full capacity whenever possible. 10% calibration should not
be used when calibrating scales for legal for trade applications.
Analog Set p:
(Refer to this section only if you encounter a calibration problem)
1) Enter Calibration Setup mode by pressing the CAL button (S1 or S5).
2) Press and release UNITS button (S2 or S6) until in the raw counts mode.
3) Return the scale platform to "No Load" by removing all items except platter from the
platform.
4) Record the "No Load" counts. The "No Load" or dead load raw counts must be
between 130,000 and 393,000 counts. If the readings are outside of the limits
specified, the scale’s loadcell maybe defective.
5) Place "Full Load" on the platform and record the "Full Load" counts. Subtract the
"No Load" counts from the "Full Load" counts to calculate "span". Refer to Table 1
and verify that the span falls within the limits specified range. The "Full Load" raw
counts (span + dead load) should not exceed 900,000 counts.
6) When using 50%, 25% or 10% of full load to calibrate, refer to Table 1 50%, 25%,
10% span ranges.
Platform load Minimum span Maximum span
Full 50,000 600,000
50% 25,000 300,000
25% 12,500 150,000
10% 5,000 60,000
Table 1: Calibration req irements in raw co nts