氢气探测器 GTD-100Ex 产品简介
扩散式防爆型 气体侦测器 GTD-100Ex Series
-采用SM技术,体积小,重量轻,费用低。
-内部微电脑处理,数字显示气体浓度。
-采用世界标准传送方式(TRANSMITTER TYPE)。
-*远传输距离可达2000Ｍ。
-防爆型结构，确保**使用。
-单人就可完成校正及维修工作。
产品规格
适用种类
LNG，LPG，HC等爆炸性气体
侦测种类
LNG瓦斯，H2氢气，C2H4沼气，C2H5O乙醚，C3H8丙烷，H2氢气，C2H5O乙醚，丙烷
检测型式
扩散式
检测原理
催化性燃烧式，半导体式，红外线传导式
量 程
0-100%lel / 0-100% VOLUME
精 度
± 3% 以内
反应时间
15秒以内
信号输出
4-20ｍA.DC
接线要求
3线制
传输距离
250M以内
操作温度
-20 ~ 50℃
操作溼度
5 ~ 95% RH
供 电
18-31V.DC
接口尺寸
1/2" or 3/4" PE / NPT
产品规格
PRODUCT SPECIFICATION
Sensor Type:
Continuous diffusion
Function:
Transmitter type
Service:
Indoor or outdoor locations
Including hazardous areas
Measuring range 1:
0-2000 ppm
Semiconductor cell
Measuring range 2:
0-100% LEL
Catalytic cell
Measuring range 3:
0-100% Volume
Thermal conductivity cell
Sensor life:
3 to 5 years typical
Accuracy:
± 3% of full scale
Response time:
T90 < 15 sec. With 100% LEL of methane applied
Zero drift:
Less than 3% of full scale per year
Electrical Classification:
Explosion-proof, Ex d IIB T5
Storage Temperature range:
-30℃ to 60℃
Warranty:
One year
Approval:
Korea Occupational Safety Association/NEPSI (China)
ENVIRONMENTAL SPECIFICATION
Operating Temperature range:
Electronics -40℃ to 70℃
Standard sensor -50℃ to 80℃
High Temp. sensor -50℃ to 250℃
Storage Temperature range:
-40℃ to 70℃
Operating Humidity range:
5 to 100% RH
Operating Pressure range:
ATM. ± 10%
MECHANICAL SPECIFICATION
Weight:
500g
Material:
Cast aluminum
Mounting Type:
2" Pipe Mount/Surface Mount
ELECTRICAL SPECIFICATION
Electrical protection:
EMI/RFI by EN 50082-1
Input Power:
24V.DC nominal
18 to 31V.DC / 230mA max.
Output Signal:
4-20mA(600 ohms max. load)
Cable Requirements:
3-wire shield cable. Max distance 2500M
Conduit connection:
1/2" & 3/4" PT & NPT
Features
- Continuous Detection of Combustible Gas and Vapours
- Miniaturized Simple Design, Applied SMT Technology
- Excellent Measurement Sensitivity and Stability
- Long Life Sensor Element
- 3-wires connection
- 4-20mA Signal output
- Calibration by One Person and Easy Maintenance
- Highest Safety Certification
- Low Operating cost
- Low Calibration cost
- Low Installation cost
