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Vaisala HMD65 User Manual

Vaisala HMD65
80 pages
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M212243EN-A
User Guide
HMD60 Series Humidity and Temperature
Transmitters for Ducts in HVAC
HMD65

Table of Contents

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Vaisala HMD65 Specifications

General IconGeneral
Humidity Measurement Range0 to 100 %RH
Enclosure RatingIP65
DisplayNo display
Measurement ParametersRelative Humidity, Temperature
Output Signal4 to 20 mA / 0 to 1 V / RS-485
Power Supply10 ... 35 VDC
Humidity sensorVaisala HUMICAP®

Summary

Product Overview

HMD65 Basic Features and Options

Details key features, measurement capabilities, and output options.

Installation

Installing into Duct

Step-by-step instructions for physically mounting the transmitter in a duct.

Wiring

Illustrates the analog and digital output wiring connections.

Operating with Insight PC Software

Vaisala Insight Software

Introduction to the configuration software for Indigo-compatible devices.

Connecting to Insight Software

Steps for establishing a connection between the transmitter and Insight software.

Insight Main View

Overview of the main interface and navigation within Insight software.

Configuring Analog Outputs with Insight

How to set up analog output channels for RH and T measurements.

Testing and Adjusting Analog Output Voltage (V) Level

Procedure for calibrating analog voltage outputs.

Configuring Minimum and Maximum RH and T Errors with Insight

Setting error limits for RH and T measurements.

Modbus and BACnet Communication

Modbus and BACnet Overview

Introduces Modbus RTU and BACnet MS/TP communication protocols.

Modbus and BACnet Configuration with Insight

How to configure communication settings using Insight software.

Operating with M170 Indicator

Overview of M170 Support

Introduction to the M170 hand-held indicator for service tasks.

Connecting HMD60 to M170 Indicator

Steps for connecting the HMD60 transmitter to the M170 indicator.

Calibration and Adjustment

Calibration and Adjustment Overview

Outlines the methods for calibrating and adjusting the transmitter.

Calibration and Adjustment Using Trimmers

Detailed steps for using physical trimmers for calibration.

1-Point Adjustment Using Trimmers and Reference Calibrator

Calibrating using trimmers with a reference calibrator.

Adjusting Output Using Trimmers and Reference Transmitter (1-point adjustment)

Calibrating using trimmers with a reference transmitter.

Resetting Trimmers Back to Zero

How to reset trimmers to their zero point using Insight PC software.

Calibration and Adjustment with Insight PC Software

Procedure for calibrating using the Insight PC software.

2-Point Adjustment with Insight and Reference Calibrator

Performing a two-point calibration with a reference calibrator.

1-Point Adjustment with Insight and Reference Transmitter

Performing a one-point calibration with a reference transmitter.

1-Point Adjustment Using Reference Environment

Steps for a one-point adjustment using a reference environment.

Maintenance

Modbus Registers

BACnet Reference

Technical Support

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