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M70 湿度分析仪
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北京松信宏泽科技有限公司
：潘女士
：
M70 湿度分析仪
产品简介：
This uniquely rugged and simple design by Envent Engineering utilizes a heated conductive polymer sensor that provides a linear output of the moisture concentration in a natural gas stream.
M70 湿度分析仪
产品特点：
• Range: 0–20lbs/mmscf (custom ranges available)
• Rugged mechanical design
• Affordable measurement
• Data logger
• Unit will display in lbs/mmscf and/or ppm
• 2% of reading or 10 ppm (0.5 lb per million) accuracy
• 4–20 mA output and alarms (2-wire)
• RS-232 and RS-485 Serial Communications
• Ultra-low power: Less than 2 watts power consumption
• Dual-line, 16-character display
Value
The unit has a 4–20 ma output and RS-232/485 serial communications, alarms, internal menu scroll buttons. The M70 can display up to 128 different parameters including lbs/mmscf, ppm, sensor temperature, raw millivolts and calibration factor and sensor heater load. The sensor is mounted in an insulated flame proof enclosure with flame arrestors installed in the sample flow path. Many natural gas tariff limits are set a 4 lbs water per million standard cubic feet. This is closely equivalent to 80 ppm or 64 mg/m3. The sensor is controlled to 50˚C and operated at atmospheric pressure to maximize resistance to process variables and adsorption of stream contaminants.
Foul resistant. The M70 offers industry leading value in price while still maintaining reliability. The rugged sensor is resistant to chemical fouling such as amines and glycols and methanol and can be washed with alcohol without permanent damage.
Minimal Power Removable Sensor. The sensor can be readily removed for cleaning or replacement with standard tools in seconds. The linear output enables the user to perform a single-point calibration. The standard M70 uses less than 2 watts power when installed in areas where ambient temperature is more than 0˚C. This means it can be used at sites where only solar or other minimal power is available.
技术参数：
| Power | 12–24 VDC @ less than 2 watts |
| Enclosures | ADALET XIHLGGCX 5-5/8” by 5-5/8” for Class 1, Div1 Grps B, C, & D |
| Ambient Temperature | 0–50 ˚C (std) Consult factory for other requirements |
| Output Ranges | 0–20 lbs/mmscf standard optional between 10–50,000 ppm (0.5 to 2500 lbs/mmscf) |
| Response time | 20 seconds to 90% of step change wetting 300 seconds to 90% dry down |
| Accuracy | 2% of reading or 10 ppm (0.5 lbs/million) whichever is greater |
| Inputs | Conductive polymer sensor and 1,000 ohm RTD input Calibration factor |
| Outputs | 4–20 mA Serial Dual 3 amp solid state alarm relays Modbus |
| Displays | Dual-line, 16-character display Moisture in ppm or lbs/million, sensor temperature ˚C, Heater duty, calibration factor, and raw millivolts can be scrolled from internal button |
北京松信宏泽科技有限公司
：潘女士
：
