GXA-23-PRINTWith a PRINT foot switch

GXA-23-REZERO

With a REZERO foot switch

GXA-23-PLUG

For incorporating into a system

GXA-26External IR switch

2017 A&D Company, Limited. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, or translated
into any language in any form by any means without the written permission of A&DCompany, Limited.
The contents of this manual and the specifications of the instrument covered by thismanual are subject to change for improvement without any notice and obligation on thepart of the manufacturer.

1WMPD4003637A

1. Introduction
This manual describes how to use the GXA-23 and GXA-26 optional interfaces for theGX-A and GF-A series balances and how to get the most out of them in terms ofperformance. Read this manual thoroughly before using the options and keep it at handfor future reference.

2. Components
The GXA-23 (three types are available) and the GXA-26 each consists of an option board
and either a switch or a plug. The switch or the plug can be used to operate the balance inthe same way as the PRINT key or the RE-ZERO key located on the balance.
Depending on the board type, a dedicated foot switch, an external contact input terminal(terminal for actual wiring) or an external IR switch is provided as shown in the tablebelow:Type
GXA-23-PRINT
GXA-23-REZERO
GXA-23-PLUG
GXA-26Components
Option board
Foot switch
AX-SW137-PRINT
Option board
Foot switch
AX-SW137-REZERO
Option board
φ3.5 mm 3-pole stereo plug
Option board
External IR (touchless) switch

GXA-23

Quantity
11111311

GXA-26

φ3.5 mm 3-pole stereo plug

Foot switch (PRINT)/BlackFoot switch (REZERO)/Red2

External IR switch

3. Installing the Option Board
Step 1. Remove the two screws, and then remove theoption panel from the rear of the balance.

Step 1

Step 2

Step 2. Peel off the connector that is secured to the panel
with double-sided tape and insert it into the socketon the option board.

Step 3. Attach the option board to the balance. Secure theboard with the two screws removed in step 1.

Step 33

4. How to Use the GXA-23
4.1. GXA-23-PRINT and GXA-23-REZERO
Connect the plug of the foot switch to either jack on theoption board panel.
Connecting the plug of the PRINT foot switch enables theswitch to perform in the same way as the PRINT key.
Connecting the plug of the REZERO foot switch enables
the switch to perform in the same way as the RE-ZERO
key.
Either of the jacks can be used because the wiring
inside the plug determines the function.
The balance function setting is not used.

4.2. GXA-23-Plug
External contact input terminal

Panel view

Compatible plug: φ3.5 mm 3-pole stereo plug
MP-013LC or the equivalent

External contact input x 2Example of external contact input terminal

External contact input circuit

Pin assignments
Pin No.
1GND
2RE-ZERO
3PRINT

Description
External contact input
External contact input

When pin 1 and pin 3 or pin 1 and pin 2 are shorted 100 ms or longer, the switch can operate thebalance in the same way as the balance PRINT key or the RE-ZERO key, respectively.
AX-SW137-PRINT or AX-SW137-REZERO (optional foot switches sold separately)
can be used.
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5. How to Use the GXA-26
Step 1. Connect the plug of the external IR (touchless) switch to the jack on the option board
panel. When the connection is completed properly, the LED on the external IR switch
illuminates.

Panel view
LEDJack on the option board
External IR (touchless) switch
Step 2. Move your hand close to the sensor on the external IR switch to operate the balance inthe same way as the PRINT key or the RE-ZERO key located on the balance.
The PRINT or RE-ZERO key function can be assigned to the external IR switch in thebalance function setting.

External IR (touchless) switch
SensorPlace your hand about 5 cm above the sensor to activate the external IR switch.

Function table when the external IR (touchless) switch is connected
ClassIteme 5External IR switch

e-5
Function
selection

Parameter Description
RE-ZERO key
0Assigns the function of the balance RE-ZERO key.
1PRINT key
Assigns the function of the balance PRINT key.
Factory setting
1

The sensitivity of the external IR switch can be changed in the balance function
setting.
The balance function setting procedure will be explained on the following pages.
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Step 3 The function table stores parameters that specify how to operate the balance, and it isused to mointor or update those parameters.
In the function setting, assign the PRINT or RE-ZERO key function to the external IRswitch. The parameter that is set is stored in memory even if the AC adapter is removed
and is retained until updated.
The function table menu consists of two layers as shown in the diagram below. The firstlayer is the “Class” and the second layer is the “Item”. Each item stores a "parameter".
The last displayed parameter is in effect. After the PRINT key is pressed, these
updated parameters are applied to operations of the balance.

Example of settings and menu structure
Example: Set the function of the external IR switch to “PRINT.”

Note: The balance may not function properly depending on the settings and theoperating environment. Be sure to set parameters correctly.

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Function table display and operation keys
The

indicates that the parameter displayed is in effect.

Enters the function table when pressed and held in the weighing mode.
Selects the class or item in the function table.
Changes the parameter.
Moves to an item in the class.
Stores the new parameter and displays the next class.
Cancels the new parameter and displays the next class when an item is displayed.
Exits the function table and returns to the weighing mode when a class is displayed.

Function table
Note: Functions available vary with the balance model.
Classba5fnc
Environment
Display
Cl adjClock adjustment
Cp fncComparator

Item

Parameter Description

Refer to the GX-A/GX-F series balance instruction manual.

pa55 dPassword lockauto Cal
Automatic calibratione 5External IR switch

e-5
Function
selection
5en5Sensitivity
adjustment

BC5 in *Internal mass value correction* Only for the GX-A series0(Same function as the RE-ZERO key)1(Same function as the0Sets the external IR switch sensitivity to HI.

1

Sets the external IR switch sensitivity to MID.

2

Sets the external IR switch sensitivity to LOW.

PRINTkey)

Refer to the GX-A/GX-F series balance instruction manual.
Factory setting

The external IR switch sensitivity adjustment function is available for balances withsoftware version P-1.200 or later.
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