GSE 370 Product manual

GSE
Model 370 & Model 375
Precision Counting Scale
Technical Reference Manual
Version 1.0

Model 370 &
Model 375
Technical Reference Manual
Version 1.0

GSE 370 / 375 Precision Parts Counter Technical Reference Manual
Copyright © 2004 GSE Scale Systems. All rights reserved.
Published by:
GSE Scale Systems
42860 Nine Mile Road
Novi, MI 48375
USA
Information in this Technical Reference Manual is subject to change without notice due to
correction or enhancement. The information described in this manual is solely the property of
GSE. No part of this manual may be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and recording and sold for any monetary figure
without the express written permission of GSE.
GSE LOCATIONS
GSE Scale Systems
42860 Nine Mile Road
Novi, MI 48375
U.S.A.
Phone: [phone]
www.gse-inc.com
GSE Canada, Inc.
617 East Lake Road
Airdrie, Alberta Canada T4B 2B8
Phone:[phone]
Fax: [phone]
SPX GSE Amprobe Europe GmbH
Phone: [phone]
Fax: [phone]
Your Distributor is:

i
Table of Contents
CHAPTER 1: INTRODUCTION ............................................................................................................... 1
E NCLOSURE ................................................................................................................................................. 1
L OAD C ELL R EPLACEMENT ......................................................................................................................... 1
Load Cell Connections ........................................................................................................................... 2
K EYPAD ...................................................................................................................................................... 2
Model 370............................................................................................................................................... 2
MODEL 375........................................................................................................................................... 3
D ISPLAY ...................................................................................................................................................... 5
Annunciators .......................................................................................................................................... 5
R EAR P ANEL C ONNECTIONS ........................................................................................................................ 5
Communication Port 1............................................................................................................................ 6
Remote Display Connections.................................................................................................................. 6
CHAPTER 2: OPTION INSTALLATION................................................................................................ 7
C OMMUNICATION ........................................................................................................................................ 7
RS-485 Networking................................................................................................................................. 7
20 mA Current Loop Option................................................................................................................... 9
A NALOG O UTPUT O PTION ......................................................................................................................... 11
S ETPOINT O PTION ..................................................................................................................................... 12
Setpoint Card Connections................................................................................................................... 13
O PTION M OUNTING B RACKET ................................................................................................................... 13
CHAPTER 3: SCALE CONFIGURATION ............................................................................................ 15
E NTERING THE S ETUP M ODE (M ODEL 370)............................................................................................... 15
E NTERING THE S ETUP M ODE (M ODEL 375)............................................................................................... 16
S ELECTING A P ARAMETER ......................................................................................................................... 16
C HANGING A P ARAMETER V ALUE ............................................................................................................. 17
Selection Parameters............................................................................................................................ 17
S AVING P ARAMETERS ............................................................................................................................... 19
F ACTORY D EFAULT ................................................................................................................................... 20
L IST OF P ARAMETERS ................................................................................................................................20
Parameter Map Details........................................................................................................................ 23
P RINTING ................................................................................................................................................... 29
Preset Transmit Selections ................................................................................................................... 29
Custom Transmit .................................................................................................................................. 31
A NALOG O UTPUT P ARAMETER S ETUP ....................................................................................................... 35
Analog Output Example........................................................................................................................ 35
S ETPOINT C ONFIGURATION ....................................................................................................................... 36
Activation Methods (General).............................................................................................................. 37
Percentage Check-Weighing ................................................................................................................ 39
Fill........................................................................................................................................................ 40
Batch..................................................................................................................................................... 41
Discharge ............................................................................................................................................. 43
Both ...................................................................................................................................................... 45
Absolute Check-Weighing..................................................................................................................... 46
Independent Setpoint Operation........................................................................................................... 47
Target Deviation Check-Weighing....................................................................................................... 49
P ARTS C OUNTING ...................................................................................................................................... 50
R EMOTE S ERIAL O PERATION ..................................................................................................................... 51
DISPLAY CAPTURE UTILITY............................................................................................................. 51
T IME AND D ATE S ETUP (M ODEL 370)....................................................................................................... 52

ii
T
IME AND D ATE S ETUP (M ODEL 375)....................................................................................................... 53
U PGRADE M ODEL 370/375 F IRMWARE ..................................................................................................... 53
Prepare For Upgrade........................................................................................................................... 54
Load Flash File .................................................................................................................................... 54
R EMOTE D ISPLAY C ONFIGURATION .......................................................................................................... 55
Master To Remote (Slave) Configuration............................................................................................. 55
Setup Master Unit................................................................................................................................. 55
Setup Remote Unit............................................................................................................................... 56
Access The Setup Mode from the Remote Display Mode...................................................................... 58
300 S ERIES C OMMAND C ODES .................................................................................................................. 59
ID N UMBER E NTRY ................................................................................................................................... 60
CHAPTER 4: CALIBRATION................................................................................................................. 61
S ETUP M ODE C ALIBRATION ...................................................................................................................... 61
Fast Calibration ................................................................................................................................... 61
Performing Calibration........................................................................................................................ 61
First Zero.............................................................................................................................................. 62
Last Zero............................................................................................................................................... 63
False Zero............................................................................................................................................. 65
Only Zero.............................................................................................................................................. 66
Reset Calibration.................................................................................................................................. 67
M ULTI -P OINT L INERIZATION .................................................................................................................... 69
E XAMINING C ALIBRATION R ESULTS ......................................................................................................... 70
Establishing A Span.............................................................................................................................. 70
E XITING C ALIBRATION .............................................................................................................................. 71
A NALOG O UTPUT C ALIBRATION ............................................................................................................... 71
CHAPTER 5: TROUBLESHOOTING.................................................................................................... 73
E RROR M ESSAGES ..................................................................................................................................... 73
Operational Errors.............................................................................................................................. 73
Setup Mode Errors ............................................................................................................................... 74
Hardware Errors.................................................................................................................................. 74
Calibration Errors................................................................................................................................ 75
Communication Errors......................................................................................................................... 75
Miscellaneous Errors ........................................................................................................................... 75
Viewing Setup....................................................................................................................................... 75
Information Mode Parameters (370 and 375)...................................................................................... 76
A/D C ALIBRATION P ROCEDURE ................................................................................................................ 77
A NALOG B OARD D IAGNOSTICS A ND T EST P ROCEDURES .......................................................................... 77

1
Chapter 1: INTRODUCTION
This chapter describes the components of the Model 370/375 such as keypad, enclosure and
display. Also included is wiring for the load cell and communication port.
E
En nc cl lo os su ur re e
The enclosure is made of die cast aluminum with rib enforcement that includes built in carrying
handles and a line cord wrap for ease of portability. This design provides extra strength and
durability. The enclosure is painted with powder coat and the counting surface is stainless steel.
Figure 1-1: Model 370 and Model 375 Enclosure
L
Lo oa ad d C Ce el ll l R Re ep pl la ac ce em me en nt t
The load cell can be exchanged by removing two M6 1x 20mm (size) bolts from the bottom plate
and two M6 1 x 16mm (size) bolts from the top spider assembly.
Figure 1-2: 15 lb – 100 lb Load Cell Installation Figure 1-3: 6 lb Load Cell Installation

2
Install the new load cell by placing it in the load cell cavity. Fasten the load cell by installing the
bolts on the bottom plate. Reinstall the spider assembly. NOTE: When exchanging a load cell
with another, the overload stop and corner overloads must be reset. Refer to Table 1-1 for
setting values.
Table 1-1: Load Cell Overload Settings
Load Cell Stop Set to
Load Cell Center Overload 120 % of full scale
Corner Overloads 60 % of full scale
LOAD CELL CONNECTIONS
The load cell cable connects to J10 of the main board. The J10 connector is accessible from the
load cell cavity of the Model 370/375 enclosure.
Table 1-2: Load Cell Connection to Main Board
Pin Designation Function
1 Shield
2 - Sense
3 + Sense
4 - Signal
5 + Signal
6 - Excitation
7 + Excitation
K
Ke ey yp pa ad d
All of the keys perform different functions. Some keys have more than one function.
MODEL 370
The Model 370 offers a 6-button durable and versatile Polymeric switch plate with large keys for
ease of use. The keypad is easily cleaned with a damp cloth or non-abrasive cleaner. Each key is
assigned two distinct functions. Various key combinations are also used. Each key has secondary
functions; allowing an operator to enter target values, perform piece samples, access setup
parameters, etc.
Figure 1-4: Model 370 Keypad
Functions
The Model 370 keypad performs different functions in the Weigh Mode, the Setup Mode, and the
Calibration Mode. Secondary functions for each key allow you to perform additional tasks.

3
Key Press Weigh Mode Count Mode Setup Mode
<
Performs a gross zero
function and/or clears an
entry in progress. Hold
this key on power-up to
turn on the display
regardless of P420.
Performs a quantity zero
function and/or clears an
entry in progress.
Exits the Setup Mode and/or
answers “NO” to query
prompts and/or clears an entry
in progress.
=Performs a print function
and/or ‘scrolls’ through
digits during setpoint
entry.
Performs a print function
and/or ‘scrolls’ through
digits during setpoint
entry.
‘Scrolls’ through digits during
data entry.
Toggles between ‘lb’, ‘kg’
third unit (if enabled)
and/or advances cursor to
next entry position.
Toggles through standard
sample sizes during a
sample and/or begins a
new sample entry.
Advances cursor to next entry
position and/or cycles prompts.
:Performs an auto-tare
function (if enabled)
and/or accepts an entry in
progress.
Performs an auto-tare
function and/or accepts an
entry in progress.
Accepts an entry in progress
and/or ‘scrolls’ through
parameter sub-set selections
and/or answers ‘YES’ to query
prompts.
>Toggles between display
modes and/or restores
power to the Model
370/375 (if auto-shutoff
enabled).
Toggles between display
modes and/or restores
power to the Model
370/375 (if auto-shutoff
enabled) and/or toggles
through standard sample
sizes during a sample.
Advances to the next setup
parameter.
9Goes to the count mode
Performs a sample for an
accurate part count and
calculates an average
piece weight.
Accepts an entry in progress
and/or ‘scrolls’ through
parameter sub-set selections
and/or answers ‘YES’ to query
prompts.
<> Access Setup Mode.
Break out of remote
display mode.
Access Setup Mode.
Break out of remote
display mode. No function.
:> No function. No function. Return to the previous setup
parameter.
<: Absolute clear – clears an
entry in progress and/or
clears the value of a
parameter.
No function. Clears any entry in progress.
<= Backspace – erases the
right-most digit during
data entry.
Backspace – erases the
right-most digit during
sample entry.
Backspace – erases right-most
digit during data entry.
=> Extended gross. Extended gross. Shows parameter number.
= Reverse character scroll
during data entry. Reverse character scroll during sample entry. Reverse character scroll during data entry.
MODEL 375
The Model 375 offers an 18-button durable and versatile Polymeric switch plate with large keys
for ease of use. The keypad is easily cleaned with a damp cloth or non-abrasive cleaner. The
number keys make entering a tare value or average piece weight easier. Each key is assigned at
least one distinct function.

4
Figure 1-5: Model 375 Keypad
Functions
All of the keys perform different functions. Some keys have more than one function.
Key Press Weigh Mode Count Mode Setup Mode
<
Performs a gross zero
function and/or clears an
entry in progress. Hold
this key on power-up to
turn on the display
regardless of P420.
Performs a quantity zero
function and/or clears an entry
in progress.
Exits the Setup Mode
and/or answers “NO” to
query prompts and/or
clears an entry in
progress.
=Performs a print function
and/or ‘scrolls’ through
digits during setpoint or
time/date entry.
Performs a print function. Return to the previous
setup parameter.
Toggles between ‘lb’, ‘kg’
or third unit (if enabled). Toggles through standard sample sizes.
Shows the current
parameter number
:Performs an auto-tare
function (if enabled).
Performs an auto-tare function
and requests a piece sample
and/or accepts an entry in
progress.
Accepts an entry in
progress and/or ‘scrolls’
through parameter sub-set
selections and/or answers
‘YES’ to query prompts.
>Toggles between display
modes and/or restores
power to the Model
370/375 (if auto-shutoff
enabled).
Toggles between display
modes and/or restores power
to the Model 370/375 (if auto-
shutoff enabled) and/or toggles
through standard sample sizes
during a sample.
Advances to the next
setup parameter.
J-H,
I
Numeric keys used to
manually enter a value for
tare weight or target
value.
Numeric keys used to
manually enter a value for tare
weight, average piece weight,
sample size etc.
Numeric keys used to
manually enter a value.
KAbsolute clear – clears an
entry in progress and/or
clears the value of a
parameter.
Clears any entry in progress or
abort a sample. Clears any entry in progress.
9Enters the counting mode
and/or accepts an entry in
progress.
Performs a sample for an
accurate part count and
calculates an average piece
weight and/or accepts an entry
in progress.
Accepts an entry in
progress and/or ‘scrolls’
through parameter sub-set
selections and/or answers
‘YES’ to query prompts.
<> Access Setup Mode.
Break out of remote
display mode.
Access Setup Mode. Break
out of remote display mode. No function.

5
D
Di is sp pl la ay y
The Model 370 and Model 375 come standard with a six digit, 7-segment bright green LED
display. The Model 370 and Model 375 will display alphanumeric data, but due to the nature of 7-
segment LED and the limitation of six digits, some information is abbreviated.
The display also has 11 annunciators to show weight and status information. The SP1, SP2, and
SP3 annunciators are red, green, and yellow. Also there is an annunciator for a third unit under
kg. Place the third unit label above the third Annunciator (refer to Figure 1-6). See page 24 for
third unit setup.
All segments and annunciators are illuminated for a brief display test upon power up. The current
gross weight is then displayed in default units.
Figure 1-6: Model 370 and Model 375 LED Display
ANNUNCIATORS
Annunciators provide mode and status information. When illuminated, they indicate the following
conditions:
SP1 Setpoint #1 activated (relay 1 closed)
SP2 Setpoint #2 activated (relay 2 closed)
SP3 Setpoint #3 activated (relay 3 closed)
0Displayed weight is at center-of-zero (±¼ display graduation)
MOTION Scale is in motion. Motion inhibited transmits and motion inhibited setpoint activation will be delayed
until motion ceases
GROSS Displayed value represents the current gross weight
NET Displayed value represents the current net weight
QTY Displayed value represents the current piece quantity (Count)
lb The displayed value is represented in pounds
kg The displayed value is represented in kilograms
Oz, lb oz, g The displayed value is represented in either ounces, pound ounces or grams
R
Re ea ar r P Pa an ne el l C Co on nn ne ec ct ti io on ns s
ETHERNET
AUX 3
AUX 2
COM 1
BATTERY
ON/OFF www.gse-inc.com Novi, MI USA
PLACE 370/375 BARCODE HERE
POWER (15W MAX)
50-60 Hz 12-20 VAC
DC 12-36V
1 NONE
2 RXD
3 TXD
4 *
5 GND
6 GND
7 RTS
8 CTS
9 +5V
5 GND
MOVE JUMBER E6
FOR +5V ON PIN 4
Figure 1-7: Rear Panel
AC Powe
r
Com 1 O
p
tionsFuture O
p
tion
Third Unit

6
COMMUNICATION PORT 1
Comm1 is standard with the Model 370/375. Connector pin outs for Comm 1 (DB9) are provided
in Table 1-3 below.
Table 1-3: Communication Port Pin Out
Pin Designation Description Remote Display
1 No connection
2 RXD √
3 TXD √
4 VCC (+ 5V)
5 Ground / ISO Ground √
6 Ground
7 RTS
8 CTS
9 VCC (+ 5V)
REMOTE DISPLAY CONNECTIONS
It is possible to connect a Model 370/375 to another 300 Series or 60 Series indicator and have
the remote indicator display a copy of the master indicator or customize the display of the remote
(slave) indicator. The remote (slave) indicator’s keypad will operate the master indicator. Refer to
page 55 to configure the master and remote (slave) displays. There are several different
configurations for Master to remote (slave) indicator connection and setup. Refer to Table 1-3 for
comm port connections.
Supply Voltage Jumper (E6)
This allows for a choice in scanner power supply pins and to minimize modifications to a cable or
connector.
Comm port 1 has two pins on the DB 9 connector which provide + 5 volts to supply power to a
scanner. The jumpers located on E6 of the main board will reroute the power (+ 5 volt) to either
pin 9 or pin 4 depending on jumper orientation.
The power (+ 5 volt) and remote key pins are switched. Refer to Figure 1-8 for the jumper
location on the main board. Refer to the Barcode Scanner manual for the power pin location.
Figure 1-8: Comm Port 1 Supply Voltage Jumper Location
Pin 9 (Default) Pin 4

7
Chapter 2: OPTION INSTALLATION
This chapter will provide detailed instructions on installing each option. Additional hardware may
be needed for the Model 370/375 depending on which options you will be installing.
Also this chapter provides instructions on how to configure all Model 370 / 375 options. This
includes setup mode parameters, connections, calibration and testing.
C
Co om mm mu un ni ic ca at ti io on n
RS-485 NETWORKING
The module converts the standard RS-232 communication on comm port 1 to RS-485. However
the advantage of using the RS-485 module, aside from the ability to transmit over long distances,
is the ability to network multiple indicators or parts counters using the same communication wires.
When networking indicators or parts counter, it is necessary to set up a network address for each
scale. The network module itself does not require addressing, rather each indicator or parts
counter must be enabled for network addressing in the setup mode. Refer to page 26 for details
on the RS-485 enable parameter (P250) and the network address parameter (P251).
Installation Instructions
1. DISCONNECT POWER! UNPLUG THE MODEL 370/375 TO INSURE DAMAGE WILL NOT
OCCUR DURING OPTION INSTALLATION.
2. Remove the six 8 mm screws (size) from the bottom plate. Separate the top enclosure from
the bottom plate.
3. Remove the IC chip and white jumper from the U4 socket on the main board.
4. Snap in the plastic spacers into the three mounting holes surrounding the U4 socket. Refer
to Figure 2-1.
5. Gently press the option board into the socket and make sure the board snaps onto the
standoffs.
6. Reinstall the enclosure bottom plate.
Figure 2-1: RS-485 / 20 mA Option Installation
RS-485 Connections (Comm Port 1)
The Model 370/375 will be connected to a peripheral via the DB 9 connector on comm port 1.
Refer to Table 2-1 for wiring connections.

8
Table 2-1: RS-485 Comm Port 1 Connections
Comm port 1 pin out Connection
1 No connection
2 TX (B+)
3 TX (A-)
4 VCC
5 ISO ground
6 Ground
7 RX (A-)
8 RX (B+)
9 VCC
Half Duplex (2-wire)
Installing jumpers 1, 2 and 4 on the RS-485 option board electrically connects pin RX B(+) to pin
TX B(+), and pin RX A(-) to pin TX A(-) on the option board. This effectively provides two + and
two - pin connections, enabling easy connection of network lines in parallel from device to device
without having to position two wires into the same lever socket. A B(+) line from each device on
the network should be connected in parallel to the next device on the network. This is also true for
all A(-) lines.
The units inside the two end-points of the network loop will utilize both A(-) pin connections and
both B(+) pin connections. The units at the end-points of the network will utilize only one A(-) pin
connection and one B (+) pin connection.
Full Duplex (4-wire)
Removing jumpers 1, 2 and 4 on the RS-485 option board requires that the transmit and receive
lines be wired independently of one another. The RX B(+) and RX A(-) receive lines must be
wired in parallel to the next device's RX B(+) and RX A(-) receive lines and the TX B(+) and TX A
(-) transmit lines must be wired in parallel to the next device's TX B(+) and TX A(-) transmit lines.

9
In order to connect network lines in parallel from device to device it is necessary to position two
wires into the same lever socket. This requires that the wire used to build the network be 24 AWG
or smaller to allow both wires to fit into the same lever socket.
Both Half Duplex and Full Duplex
The network boards on both end-points should install jumper 3 on the RS-485 option board to
engage the 120 W termination resistor (R8). The boards between the two end-points should
remove jumper 3 on the RS-485 option board.
The isolated ground (ISO GND) should be connected in parallel from unit to unit. A shielded
twisted two pair cable is recommended throughout the network.
20 MA CURRENT LOOP OPTION
This option will convert the comm port 1 to a 20 mA current loop instead of an RS-232. This is a
digital communication signal and should not be confused with a 4 to 20-mA (or 0-20 mA), which
are analog output signals. The intended use is primarily printers and scoreboard displays.
This option will mount into the socket for the comm port RS-232 chip on the main board. This
option will exclude the use of the RS-485 option board. (I.e. only the RS-485 OR the 20 mA
option can be installed into a Model 370/375).
Installation Instructions
1. DISCONNECT POWER! UNPLUG THE MODEL 370/375 TO INSURE DAMAGE WILL
NOT OCCUR DURING OPTION INSTALLATION.
2. Remove the six 8 mm screws (size) from the bottom plate. Separate the top enclosure
from the bottom plate.

10
3. Remove U4 and the white jumper from the socket of the main board.
4. Snap in the plastic spacers into the three mounting holes surrounding the U4 socket.
Refer to Figure 2-1.
5. Gently press the option board into the socket and make sure the board snaps onto the
standoffs.
6. Reinstall the enclosure bottom plate.
BI-Directional
Both the transmit output and the receive input of the Model 370/375 are available as 20 mA
signals. None of the handshake signals are supported for the 20-mA current loop operation.
Baud
Only baud rates of 9600 baud and less are supported.
Active/Passive
The Tx output may be used as an active or passive output from the Model 370/375. Either active
or passive is chosen depending upon which terminals are used for the connections. In active
mode the Model 370/375 supplies the current. In passive mode, the external device supplies the
current. The Rx input is available in passive mode only.
Isolation
The input and output are electrically isolated from the main board as well as earth ground and
each other, for both passive and active modes of operation. Isolation is a minimum of 1000v.
Max Voltage
Active mode Tx current loop provides a driving voltage of 12v. This will allow 20 mA current flow
with up to a 600 ohm load. Passive mode will work with an external driving voltage of up to 50v.
Connections
The field connections to the 20 mA circuitry will be made at the 9 pin 'D' connector on the rear of
the Model 370/375.
Transmit Current Input Active = TA
Transmit Current Input Passive = TP
Transmit Output = TXO
Receive Current Input = RXI
Receive Current Output = RX
Cable
The length for the current loop is 1000 ft. maximum. This is for the entire loop, not from device to
device. Example: 1 transmitter and 1 receiver can have a maximum of 500 ft. of 2 conductor
cable between them.
Comm port 1 pin out Connection
1 No connection
2 RX IN
3 RX Pass
4 VCC
5 TX Active
6 Ground
7 TX OUT
8 TX Pass
9 VCC

11
Connected Devices
While 20 mA current loops can allow for more than one transmitter and/or receiver, the Model
370/375 and/or option board do not include any address recognition or collision avoidance and/or
detection to promote this usage. If the 20-mA loop is intended to be used in this manner, proper
planning for these issues is required.
Table 2-2: Connecting to External Devices
Typical Installations
Model 370/375 External Device
TP RX+
Passive 20 mA Output TXO RX- Active 20 mA Input
RXI RX+
Passive 20 mA Input RX RX- Active 20 mA Output
TXO RX+
Active 20 mA Output TA RX- Passive 20 mA Input
A
An na al lo og g O Ou ut tp pu ut t O Op pt ti io on n
This section provides procedures for installing and configuring the analog output module.
The analog output modules enable the Model 370/375 to generate a 0-10VDC, active 0-20mA or
active 4-20mA output signal corresponding to the value of most operating parameters. For
parameter setup see page 35. For details on testing and troubleshooting see page 77. For
analog output calibration see page 71. Requires an option mounting bracket kit (24370B-300A0)
for internal installation.
Installation Instructions
1. DISCONNECT POWER! UNPLUG THE MODEL 370/375 TO INSURE DAMAGE WILL NOT
OCCUR DURING OPTION INSTALLATION
2. Remove the (6) 38-31-8710 M5 x 0.8 x 10 mm screws from the enclosure bottom plate and
set it aside.
3. Discard the mounting hardware provided with the analog output kit and use the hardware
provided with the option-mounting bracket kit. Refer to page 13 for parts included with this
kit.
4. Snap in the (4) nylon spacers in the 4 holes either to the right of the notch or the left of the
notch in the option mounting bracket.
5. Position the Analog Output Option Board on the spacers so the ribbon cable points away
from the notch on the option-mounting bracket. Carefully press the analog output option onto
the spacers.
6. Install the (4) nylon hex nuts to secure the option board. Refer to Figure 2-3 for details.
7. If a setpoint option is also being used, connect the 6" option ribbon cable from J1 of the
analog output option board to J1 of the setpoint option board.
8. Connect the 22-30-25520 6.5" ribbon cable (optional) to from J2 of the analog output board to
J3 of the main board.
9. Install the option-mounting bracket in the Model 370/375 enclosure. Refer to page 13 for
option mounting bracket installation instructions.
10. Connect all necessary wiring to the Analog Output Option Board.
11. Reinstall the enclosure bottom plate.

12
Figure 2-2: Model 370/375 Analog Output and Setpoint Option Installation
Analog Output Connections
Pin Connection Name Description
1 Earth Ground Non-isolated earth ground (future use).
2 + 5 VDC Isolated 5 volt source (future use).
3 Isolated Ground Provides an isolated ground connection.
4 Vout Used for the 0-10 VDC analog signal output.
5 Isolated Ground Provides an isolated ground connection.
6 Iout Used for 4-20 or 0-20 mA analog signal output.
S
Se et tp po oi in nt t O Op pt ti io on n
The setpoint option provides the ability to running a process, turning on stack lights or anything
else that may require an output signal. Eight different configurations are offered. Requires an
option mounting bracket kit (24370B-300A0) for internal installation.
Table 2-3: Setpoint Option Board Part Numbers
Quantity Part Number Description
1 420925-36594 DC 4 output
1 420926-36589 DC 4 input
1 420924-36584 CD 2/in - 2/out
1 420923-36574 Low voltage AC, 4 input
1 420918-36536 Low voltage AC, 2/in - 2/out
1 420922-36579 AC 4 output
1 420923-37093 High voltage AC, 4 input
1 420918-37092 High voltage AC, 2/in - 2/out
Installation Instructions
1. DISCONNECT POWER! UNPLUG THE MODEL 370/375 TO INSURE DAMAGE WILL NOT
OCCUR DURING OPTION INSTALLATION
2. Remove the (6) 38-31-8710 M5 x 0.8 x 10 mm screws from the enclosure bottom plate and
set it aside.
3. Discard the mounting hardware provided with the setpoint option kit and use the hardware
provided with the option-mounting bracket kit. Refer to page 13 for parts included with this
kit.
4. Snap in the (4) nylon spacers in the 4 holes either to the right of the notch or the left of the
notch in the option mounting bracket.

13
5. Position the setpoint option board on the spacers so the ribbon cable points away from the
notch on the option-mounting bracket. Carefully press the analog output option onto the
spacers.
6. Install the (4) nylon hex nuts to secure the option board. Refer to Figure 2-3 for details.
7. If an analog output option is also being used, connect the 6" option ribbon cable from J1 of
the setpoint option board to J1 of the analog output option board.
8. Connect the 22-30-25520 6.5" ribbon cable (optional) to from J2 of the setpoint board to J3
of the main board.
9. Install the option-mounting bracket in the Model 370/375 enclosure. Refer to page 13 for
option mounting bracket installation instructions.
10. Connect all necessary wiring to the setpoint option board.
11. Reinstall the enclosure bottom plate.
SETPOINT CARD CONNECTIONS
Using one of the software setpoint configurations (see General Setpoint Setup on page 36) in
conjunction with the setpoint option board gives the Model 370/375 the ability to directly control
external devices such as valves, relays, actuators, etc.
There are up to three setpoint outputs available. The activation and deactivation is controlled by
the setpoint configuration. The outputs are capable of driving up to one Amp at 20-280VAC & 2
Amp at 3-60VDC. The solid state relays are normally open (NO) contacts.
O
Op pt ti io on n M Mo ou un nt ti in ng g B Br ra ac ck ke et t
The option mounting bracket kit (24370B-300A0) is required for option installation. The bracket
will accommodate up to four options. The options installed on the option-mounting bracket are the
Analog Output and Setpoint. The options mount on the bracket with the hardware provided with
each option kit.
Quantity Part Number Description
1 44-25-43147 Mounting Plate
8 17-20-2107 Nylon spacers
2 38-31-8710 Mounting Plate bolts
8 38-24-1500 Nylon nuts
Installation Instructions
1. DISCONNECT POWER! UNPLUG THE MODEL 370/375 TO INSURE DAMAGE WILL NOT
OCCUR DURING OPTION INSTALLATION.
2. Install all options on the mounting bracket. Refer to the specific option section for installation
instructions.
3. Remove the (6) 38-31-8710 M5 x 0.8 x 10 mm screws from the enclosure bottom plate and
set it aside.
4. Use the (2) M5 self-tapping screws to fasten the option-mounting bracket to the Model
370/375 enclosure. For the installation drawing refer to Figure 2-3.
5. Reinstall the enclosure bottom plate.

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Figure 2-3: Option Bracket Installation