Regarding the issue with portable dew point meters

Teledyne’s Model 8800P – if you have no budget concerns, you can give it a try~~

GE’s Moisture IQ Moisture.IQ controller can be used. Features: This controller is capable of controlling up to 6 microwater sensors and 6 microoxygen sensors simultaneously; by combining these two systems, it offers an excellent cost-performance ratio while reducing the need for maintenance and associated costs. There are various installation methods – rack-mounted, disc-mounted, panel-mounted, and wall-mounted. There are various explosion-proof types. Product specifications: Electronic part – Intrinsically safe IIC; operating temperature range: –20°C to +50°C. Apparatus category: Cl I, Div 1, Gr A,B,C,D, T4. Inputs: • Moisture content: up to 6 channels (selection depends on actual requirements); • Oxygen content: up to 6 channels (selection depends on actual requirements). Analog outputs: 2 analog outputs per channel; output type: 0/4 to 20 mA, with a maximum series resistance of 400 Ω. Digital outputs: RS232/RS485 serial communication. Computer-enhanced algorithms. Standard version: provides fast measurements in applications with sudden drying conditions (response time of 3–5 minutes). Data storage: built-in data storage function. USB interface for data processing and upgrading the instrument’s software. PC connection interface: optional PanaView™ display. LCD display: real-time touch screen capable of displaying up to 12 channels simultaneously. Power supply: universal power supply, 90 to 260 VAC, 50/60 Hz. Temperature: • Operating temperature: 0° to 60°C (32° to 140°F); • Storage temperature: 30° to 70°C (–22° to 158°F). Data storage: Moisture, temperature, and pressure calibration data can be automatically downloaded to Moisture.IQ. Self-calibration: self-calibration takes place upon startup, or the user can set a specific timing for calibration. Dimensions (height × width × length) • Mounting size: 5.22 × 19.00 × 17.03* in. (13.26 × 48.26 × 43.26* cm). Measurement accuracy: ±2°C (range –65 to +60°C), ±3°C (range –110 to –66°C). The MISP2 microwater sensor, when used in conjunction with the GE Moisture.IQ moisture meter, meets the Intrinsic Safety requirements: EX_II 1 G EE*a IIC T4 (–20°C to +80°C). It uses an alumina capacitive sensing principle. Calibration is performed individually for each sensor, with calibration data traceable to the standards set by the National Institute of Standards and Technology (NIST); 14 actual calibration points are used for verification. There is a after-sales calibration service center for these sensors in Changzhou, and it is recommended to have them calibrated once a year. Temperature: Operating temperature of the probe –110° to 70°C; operating temperature of the MISP probe’s electronic module: 0–60°C; storage temperature

This post was last edited by 955559 on 2018-10-16 at 11:58. Contact method: In-site message to Zhang; feel free to reach out if you have any questions

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