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Page 10 of 16 

M-GDA-4350 V12 Rev 1.1

5. Output Configuration

Current or Voltage 0-20mA, 4-20mA, 0-5V, 0-10V Configuration 

This output will generate a current or voltage output reflecting the full scale of the sensor. This 
output is factory set and calibrated to the user’s specified requirements at point of purchase. 

If an output type was not specified by the user at time of purchase the default setup is set and 
calibrated to 4-20mA. This is user adjustable out in field but will not be as accurate to what it 
was originally calibrated to from factory.  
The 4-

20ma will drive into a maximum of 680Ω load impedance (line and input impedance) at 

24V. 

Be cautious when handling the GDA 4350 as there are delicate components that can 
easily be damaged by static discharge. Always observe anti static precautions. 

To change the output: 

1. Isolate the GDA 4350 by removing the incoming power source connector (P1) from the

rear of the board

2. Adjust jumper pins to the desired output configuration (see Table below)
3. Ensure output is configured for the changed output option
4. Revert to normal operation

Output Type 

P2 Jumper Configuration (IN or OUT) 

P2 Jumper Location 

Sen 
Pwr 

MCU 

Pwr 

HS/FS 

0/4-

20mA 

V Out 

Reset 

4 - 20 mA (Default as 
pictured) 

IN 

IN 

IN 

IN 

OUT 

OUT 

0 - 20 mA 

IN 

IN 

IN 

OUT 

OUT 

OUT 

0 - 5 V 

IN 

IN 

OUT 

OUT 

IN 

OUT 

0 - 10 V 

IN 

IN 

IN 

OUT 

IN 

OUT 

Table 3: Output Jumper location 

P2 

P3 

P2 Jumper 
Description

P1 

P2 Jumper Location No.: 

1 2 3 4 5 6 

Содержание GDA 4350

Страница 1: ...GDA 4350 Carbon Dioxide Sensor Operating Manual Manual Revision 1 1 Hardware Version 11 12 Software Version 2 1 3 Copyright Gas Detection Australia Pty Ltd 2018...

Страница 2: ...or will depend on a number of factors such as the environment in which it is used operating temperature humidity atmospheric pressure and environmental pollutants In all cases we recommend sensors are...

Страница 3: ...of the information contained herein The information in this document has been carefully checked and is believed to be entirely reliable with all of the necessary information included GDA reserves the...

Страница 4: ...Table of Contents 1 Overview 5 1 1 Introduction 5 1 2 Specifications 6 2 Sensor Placement 7 3 Wiring Instructions 8 4 Operation 9 5 Output Configuration 10 6 Calibration 11 6 1 Fresh air Zero point C...

Страница 5: ...n safe area applications It uses the latest laser semiconductor technology for detection of carbon dioxide The sensor and electronics are one homogenous unit and must never be separated It has an anal...

Страница 6: ...Standard 0 20mA 0 10V or 0 5V User Specified Power Consumption 150mA peak 24VDC Connection 4 pin plug connector Wiring 3 core wire with overall screen with current carrying capability to suit cable l...

Страница 7: ...it The further from the potential leeks the more the gas will be diluted Take into account drafts and air movements when mounting the sensor Fit using the four fixing holes in the corners of the box W...

Страница 8: ...rying capability to suit cable length of cable run Screen must be connected to the Earth connection on the connector P1 The enclosure is platted with a layer of conductive chrome which is connected to...

Страница 9: ...of the set output Ensure that this does not affect external equipment LED LED STATE FUNTION ON Power is present OFF Power is not present GREEN ON BLUE FLASHING YELLOW ON The sensor is in its warm up p...

Страница 10: ...d input impedance at 24V Be cautious when handling the GDA 4350 as there are delicate components that can easily be damaged by static discharge Always observe anti static precautions To change the out...

Страница 11: ...n fresh air The sensor must be in the fresh air conditions for a minimum of five minutes or until the output has reached a stable point To perform a manual fresh air zero span point calibration 1 Remo...

Страница 12: ...d Manual Calibration Mode Add a jumper to pins 1 and 3 of P3 1 3 Use supplied jumper on pins 18 and 17 of P3 for Manual Calibration Mode return to this location only Figure 5 Manual Calibration Mode j...

Страница 13: ...chemical formula 2 Part Number Product part number of detector sensor head controller 3 Serial Number Serial number of detector sensor head controller 4 Range Range of sensor and units ppm vol LEL 5 D...

Страница 14: ...Page 14 of 16 M GDA 4350 V12 Rev 1 1 Notes...

Страница 15: ...Page 15 of 16 M GDA 4350 V12 Rev 1 1 Notes...

Страница 16: ...ents Date 1 Initial revision of the Manual HW V11 12 27 Apr 2018 1 1 Manual CAL table 4 updated 1 May 2018 Table 5 Revision History This product and operating manual are subject to change without prio...

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