Flame Proof Type Sampling VOC Gas Detector

Model : GTD-5000F VOC
Gas : VOC
Comm. : 4-20mA, RS-485, Relay
App. : KCs


  • Continuous detection of VOC gas in explosion hazardous area with flame proof structure
  • Self diagnosis function with built-in Microprocessor
  • Easy replacement with a cartridge type sensor
  • Digital flow sensor to maintain regular flow rate
  • Fast response of gas leakage with a high efficient pump inside
  • Low concentration VOC gas detection by PID sensor
  • Stable quality and proved detection principle for service life
  • Auto calibration and program setting with a magnet bar
  • 4-digit digital gas concentration display
  • 4-20mA DC output signal
  • Easy configuration of monitoring by RS-485 Modbus isolated serial data communication(Option)
  • 3-wire connection for signal & power
  • 2-stage alarm, 1-trouble display and relay contact output
  • Calibration and maintenance by one-man



Model GTD-5000F VOC
Measuring gas VOC gases(Benzene, Toluene, Xylene & etc)
Measuring type Auto Sampling type
Measuring method Photo-Ionization Detector(PID)
Measruing range 5ppb ~ 300ppm
Response time < 5sec / 90% scale
Accuracy ±3% / Full Scale
Parameter control Non intrusive control with a Magnet bar (calibration, maintenance, alarm setting)
Operation mode display Alarm / Trouble LED, Flow rate
Measuring value display FND Display(4-digit)
Alarm signal output 250V 1A / 3-SPST relay contact (2-stage alarm, 1-trouble)
Output signal Analog output : 4-20mA DC
Sampling method Digital output : RS-485 Modbus(Option)
Sampling line Diaphragm Pump
Flow rate OD 1/4 “(Standard)
Cable/Distance 0 ~ 1000 ml/min Max
Power + Signal cable : 3-wire > 1.5sq(AWG16)
4 – 20mA DC Signal : 2500m
RS-485 Modbus Signal : 1000m
Conduit connection G. Rc. NPT 1/2″ & 3/4″ (G 3/4″ : Standard)
Mounting type Wall mount
Operating temperature -20℃ ~ +60 ℃
Operating humidity 5 to 99% RH (Non-condensing)
Operating power Standard : 18 ~31V DC (24V DC normal) / 280mA max
Material ALDC
Dimensions 226.3(W) × 154(H) × 238(D) mm
Weight 5kg
Approval Explosion proof type (Ex d IIC T6, IP65) KCs