VG Instruments (SEA) Sdn Bhd
12A, Jalan Dagang SD2/1G,
Bandar Sri Damansara,
Kepong, 52200
Kuala Lumpur, Malaysia.
+603-6276 8363
+603-6276 9363

GMS 2500

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GMS 2500 GasDNA Gas Detector

Multi-channel digital controller for gas detector 

GMS-2500 is multi-channel digital controller to monitor gas leakages from more than one gas detectors simultaneously. GMS-2000 is composed of one alarming unit & more than one receiving units. While each receiving units in GMS-2000 receive density signals from external gas detectors, when the density becomes higher than alarm value, receiving units automatically give signal to alarming unit to sound alarm.

GMS-2500 transmits the relay output and standard current output signal 4-20㎃ to various controllers such as PLC, DDC, recorders, and computers for composition of integrated gas monitoring system.

[ Features ]
 Centralized gas monitoring is available by connection with more than one gas detectors.
 Receiving 4-20㎃ analogue continuous signals from more than one gas detectors simultaneously and displaying the digital signals accurately by built-in high resolution A/D converter.
 User programming alarm range, alarm delay time, and so on, by built-in micro processor.
 Bar graph displays the alarming density for maximum visual effect.
 Built-in high resolution D/A converter for accurate transmission of 4-20㎃ standard current output signal to external controllers (PLC/DDC).
 High/low relay output for interlocking with external devices such as fan.
 Robust aluminum alloy casing & frame.
[ Specification ]
Division GMS-2500
Alarming unit (Power unit) ±1% of reading or 1
Product structure DIN TYPE DIN TYPE
Control structure. Alarm:Indicator1:1~64 Indicator: Sensor = 1:1
Expansion structure. Slide Card Type
Input power AC 230V/60Hz
Output power   DC 24V(250㎃)
Input signal   4~20㎃ DC/F.S
Output signal   4~20㎃ DC/F.S, RS-485(Option)
Density indicating   F.N.D Display 
%LEL(combustible),% (O2), PPM(toxic)
Power indicating Power supply indicating – POWER LED(GREEN)
Alarm indicating Alarm method Low Alarm - LOW LED(RED)
High Alarm – HIGH LED(RED)
Trouble Alarm – FAULT LED(YELLOW)
Alarm method Seeing – ALARM LED On/Off Seeing – Alarm LED On/Off
Hearing– Buzz(higher than 80㏈)  
Alarm density   HIGH/LOW 2 step Alarm density –set by user.
Alarm delay time   0~99seconds, setting by user
Alarm lifting Manual and automatic returning
Alarm output SPDT RELAY output for HIGH/LOW 2 steps
SPDT RELAY output for FALULT alarm
Operating temp./humidity -20 ~ 50, 5 ~ 95%RH(Non-Condensing)
Exterior structure. 19”(3U) Unit - Aluminum, Outer box of system - Metal Case
Output option RS-485

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