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Back-Light LCD or OLED ǥ 
׳ƽ ٸ ̿Ͽ LCD or OLEDǥâ 1:1 ȭ  α׷  
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4-20mA DC ȣ 
RS-485 Modbus Serial ͸ ý  
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INTELLIGENT & LOCAL DISPLAY TYPE OXYGEN & TOXIC GAS DETECTOR
ModelGTD-3000Tx
Measuring gasO2 / Toxic gases (CO, CL2, NH3 & etc)
Measuring typeDiffusion type
Measuring methodElectrochemical cell, Semiconductor cell
Measuring rangeRefer to Toxic Gas Measuring Range(166 page)
Response time 45 sec / 90% scale
Accuracy3% / Full scale
Parameter controlNon intrusive control with a Magnet  (calibration, maintenance, alarm setting)
Operation mode display4-LED (Power, 2-stage alarm, 1-trouble)
Measuring value displayLCD display (Built in back light  2-Line, 16 characters) / OLED Tpye (Option)
Alarm signal output250V 1A / 3-SPST relay contact (2-stage alarm, 1-trouble)
Output signalAnalog : Measuring signal : 4-20mA DC
            Maintenance signal : 3mA DC
            Calibration signal : 3mA DC
            Fault signal : 0mA DC
Digital : RS-485 Modbus(Option)
Cable/DistancePower + Signal cable : 3-wire 1.5sq (AWG16) / 2500m max
RS-485 data communication cable : 1pair (UL2919 RS-485) / 1000m max
Conduit connectionG. Rc. NPT 1/2" & 3/4" (G 3/4" : standard)
Mounting type2" Pole mount, Wall mount, Duct mount
Operating temperature-20 ~ +60
Operating humidity5 ~ 99%.RH (non-condensing)
Operating power18 ~ 31V DC (24V DC normal) / 200mA
Dimensions156 x 196 x 110 (W x H x D)mm
Weight2.0kg
ApprovalExplosion proof type (Ex d IIC T6, IP65) KCs
Explosion proof type (Ex d IIC T6 Gb) NEPSI
CE (EN 50270:2006)



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