Vaisala HMI41 Hygrometer User Manual

This manual provides operating instructions for the Vaisala HMI41 portable humidity and temperature indicator, including probe attachment, calibration, and…

Brand: Vaisala
Category: Other Electronics
Document type: User Manual
Language: Japanese
Pages: 72
File format: PDF
File size: 934 KB
Published: 03 February, 2012
Updated: 14 October, 2026
Model: HMI41
MD5 checksum: ABEC5807064A6FCDEC27C8076F9A5349
PDF: Vaisala HMI41 Hygrometer User Manual PDF

About this manual

The Vaisala HMI41 is a portable humidity and temperature indicator designed for industrial monitoring, workplace safety, research, and fixed-point observation. It supports various probes, including the HMP45 and HMP46, and automatically recognizes connected probes to simplify setup. The device displays relative humidity, temperature, dew point, absolute humidity, wet-bulb temperature, and mixing ratio. This manual is written in Japanese.

What's inside

HMI41 Indicator and Probes
Precautions for Humidity Measurement
Startup Preparation
Measurement Methods
Calibration
Data Collection
Data Transfer to PC
Setting Changes
Maintenance
Technical Data

Specifications

Resolution	0.1 %RH; 0.1 ℃
Operating Humidity Range	0…100 %RH (no condensation)
Operating Temperature Range	-20…+60 ℃
Storage Temperature Range	-40…+70 ℃
Power Source	4 AA batteries (LR6)
Battery Life	72 hours continuous

Frequently asked questions

What probes are compatible with the HMI41?

The HMI41 supports various probes, including the HMP42, HMP45, and HMP46.

How do I attach the probe to the HMI41?

Plug the probe cable into the connector labeled 'PROBE' on the bottom of the HMI41 unit.

How long does the battery last?

The battery life is 72 hours of continuous operation.

Download PDF (934 KB)