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General| Measurement Parameters | Relative Humidity, Temperature |
|---|---|
| Humidity Measurement Range | 0 ... 100 %RH |
| Protection Class | IP65 |
| Humidity Accuracy | ±1% RH (0...90% RH) ±1.7 %RH (90 ... 100 %RH) |
| Temperature Accuracy | ±0.2 °C |
| Power Supply | 10...35 VDC |
| Display | Optional |
| Operating Temperature | -40 to +60 °C |
| Storage Temperature | -40...+80°C |
| Weight | 0.5 kg |
Highlights important safety considerations, including warnings for serious hazards and potential hazards.
Details electrostatic discharge risks and precautions for handling sensitive electronic components.
Specific instructions for mounting the probe cable in gas group IIC spaces to meet EN 50284.
Emphasizes turning off the power switch before making electrical installations in hazardous areas.
Details US (FM), Canadian (CSA), and European requirements for intrinsically safe operation.
Illustrates connections for current and voltage signal controllers using a galvanic isolator.
Illustrates connections for current and voltage signal controllers using a zener barrier.
Details grounding requirements for the transmitter and barrier, including cable size and resistance limits.
Explains the function of dip switches for analog output test, calibration enable/disable, and output quantity selection.
Instructions for scaling analog outputs for channels 1 and 2 using the display and dip switches.
Warns that the serial interface MUST NOT be used in hazardous areas.
Commands for selecting output quantities for channels 1 and 2 using the serial interface.
Commands for scaling analog outputs by defining lower and upper limits of quantities via serial interface.
Procedure for calibrating analog outputs using a multimeter and serial commands.
Details maximum measurement pressures for HMP362, HMP364, and HMP368 probes at overpressure.
Equations to calculate current values corresponding to reference output quantities for calibration.
User-friendly procedure for automatic two-point RH calibration using salt solutions with HMT360 display.
Steps for performing manual low-end relative humidity adjustment using reference chambers.
Procedure for manual high-end relative humidity adjustment using a second reference chamber.
Guidance for performing one-point temperature calibration using high-quality standards.
Specifies measurement range, accuracy, response time, and sensor for dewpoint in natural gas applications.
Provides ATEX, FM, CSA, and TestSafe classifications and safety factors for the HMT360 series.
Details classifications and safety factors for CSA, Japan (TIIS), and Australia (TestSafe) certifications.
Diagram illustrating intrinsically safe wiring for FM approval, showing hazardous and safe area connections.
Lists safety factors for HMT360 FM approval and essential installation notes.
Diagram showing intrinsically safe wiring for CSA approval with various barrier/separator types.
Lists special conditions for safe use of HMT360 in potentially explosive atmospheres as per ATEX directive.
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