氢气探测器GTD-300Ex 产品简介
*可燃性气体侦测及氧气连续侦测;毒气在与火焰证明结构的危险区域。
*与固定微处理器的自我诊断作用。
*可燃性气体侦测及氧气连续侦测;从低落的毒气到各种各样的侦测原则高感度。
*优良选择性通过适应侦测,氧气&毒气。
*查出的气体优越表现在TLV之下。
*稳定的质量和产品使用期限的被证明的侦测原则。
*镶入后面光LCD显
*应用磁铁棒调整LCD显示的自动定标和位置设定。
* 2阶段警报。
* 4-20mA DC输出信号。
* RS-485 Modbus通信。
*监测容易配置由连续数据通报。
*只需一名工作者即可设定和维护。
*检测气体: 丙烷、H2氢气、LPG、LNG、瓦斯、
产品规格
SMART & LOCAL DISPLAY TYPE OXYGEN & TOXIC GAS DETECTOR
Model
GTD-300Ex
GTD-300Tx
Measuring gas
Combustible gas
(LNG, LPG, H2, Methane, Butane & etc)
Toxic gas
(O2, CO, CL2, NH3, HCL, HCN, SO2 & etc)
Measuring type
Diffusion type
Measuring method
Hot wire semiconductor cell, Catalytic cell, Thermal conductivity cell
Electrochemical cell, semiconductor cell
Measuring range
0~2000ppm, 0~100% LEL, 0~100% Vol
Refer to ordering information
Response time
< 15sec 90% scale<="" span="">
<45 sec 90% scale<="" span="">
Accuracy
±3% / Full scale
Parameter controls
Non intrusive control with Magnet bar (calibration, maintenance, alarm setting)
Operation mode display
4-LED (Power, 2-alarm, 1-Trouble)
Measuring value display
LCD display (Built in Back light 2-Line, 16 characters)
Alarm signal output
250V 1A / 3-SPST Relay contact (2-Alarm, 1-Trouble)
Output signal
Analogue output : Measuring output: 4-20 mA DC
Maintenance output: 3 mA DC
Calibration output: 2 mA DC
Fault output: 0 mA DC
Digital output : RS-485 Modbus (option)
Cable / Distance
Power + signal cable: 3 wire (Above CVVSB 1.5sq) / 2,500m max.
RS-485 data communication cable: 1par (UL2919 RS-485) / 1,000m max.
Conduit connection
1/2" & 3/4" PF, NPT (3/4" PF standard)
Mounting type
2" Pole mount, Wall mount, Duct mount
Operating temperature
-20℃ ~ +50℃
Operating humidity
5 ~ 95%.RH (non-condensing)
Operating power
18 ~ 31V DC (24V DC normal) / 250mA max.
Dimensions
GTD-300Ex (Comb.) 152 x 168.5 x 109(W X H X D)
GTD-300Tx (Toxic.) 152 x 188.5 x 109 (W X H X D)
Weight
2.1 kg
2.2 kg
Approval
Flame proof type (Ex d IIC T6)
Features
* Continuous detection of combustible, oxygen & toxic gas in hazardous area with flame proof structure
* Self diagnosis function with built-in Microprocessor
* Detection of combustible, oxygen & toxic gas from low to high concentration owing to various detection principle
* Excellent selectivity by adapting detection principle only for oxygen & toxic gas
* Superior performance for detecting gas below TLV
* Stable quality and proved detection principle for service life
* Built-in Back light LCD display
* Auto calibration and program setting with magnet bar and LCD display
* 2 stages Alarm, 1 Trouble display and relay output
* 4-20mA DC output signal
* RS-485 Modbus communication
* Easy configuration of monitoring by Serial data communication
* Calibration and maintenance by one worker
