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General| Measurement Range | 0 to 100 %RH |
|---|---|
| Protection Class | IP65 |
| Operating Temperature | -40 to +60 °C |
| Weight | 300 g |
| Output Signal | 4 to 20 mA |
Details document revisions, added/updated sections, and product serial number changes.
Lists other Vaisala manuals relevant to the HMM170.
Explains symbols and text formatting used in the guide.
Lists registered trademarks of Vaisala and other companies.
Overview of the HMM170 module, its capabilities, and applications.
Lists key features, sensor types, output options, and cable lengths.
Describes the three available HUMICAP sensor types and their applications.
Details available output parameters and their availability based on sensor type and operating conditions.
Provides dimensions and design details of the HMM170 probe head.
Lists available filter types, their properties, and temperature ranges.
Explains the meaning of different LED colors and states on the component board.
Provides precautions for preventing electrostatic discharge damage to the product.
Explains the principle of operation for Vaisala HUMICAP sensors.
Describes the chemical purge function for sensor maintenance and accuracy.
Details sensor warming and probe heating functions to prevent condensation.
Step-by-step guide for mounting the HMM170 component board.
Guidance on choosing the optimal placement for the probe head.
Instructions for physically installing the probe head.
How to connect and use the service port for configuration and calibration.
Steps to install the necessary driver for the USB service cable.
Information on using the Modbus serial communication protocol.
Overview of the Vaisala Insight PC software for configuration and diagnostics.
Prerequisites and steps to connect the HMM170 to Insight software.
Details on available configuration settings within Insight software.
Specific steps to configure condensation prevention features via Insight software.
Instructions for cleaning the HMM170 probe using isopropyl alcohol.
Specific instructions for cleaning the HUMICAP 180L2 sensor.
Steps for safely removing and installing probe filters.
Overview of the calibration process and when it is needed.
Specifies the number of points and limits for humidity/temperature adjustment.
Detailed steps for performing calibration and adjustment using Insight software.
Provides detailed technical specifications for the HMM170.
Displays physical dimensions of the HMM170 probe head.
Lists available accessories and replacement spare parts for the HMM170.
Specifies default serial communication parameters for Modbus.
Lists common Modbus function codes used with the HMM170.
Explains how data is encoded for Modbus communication.
Details the data format for floating point and integer values in Modbus.
Explains the interpretation of 16-bit signed integer values in Modbus.
Introduces Modbus register numbering and addressing.
Lists Modbus registers for reading measurement data (floating point).
Lists writable Modbus registers for configuring device settings.
Lists read-only Modbus registers for device status information.
Lists registers for testing Modbus implementation functionality.
Lists Modbus objects for identifying the device and its attributes.
Explains Modbus exception codes and their meanings.
Provides examples of Modbus read and write operations.
Details FCC compliance information for the device.
Information on Vaisala's customer support for maintenance and calibration.
Outlines the standard warranty terms and conditions for the product.
Contact information and required details for technical support.
Guidelines for proper disposal and recycling of the product and packaging.
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