Duct Mounting Overview - HMD65 - HMD60

HMD65 Quick Guide

Document code
M212264EN
Revision
B
Language
English (United States)
Product
HMD65
HMD60
Document type
User guide
Figure 1. Duct Installation Overview
1
Make sure there is a minimum clearance of 5 m (16.5 ft) between the probe body and any possible humidifier.
2
When installing the transmitter, drill a second hole approximately 30 cm (12 in) from the installation hole, towards the direction of the air flow, and plug it with a removable seal. This second hole is intended for later use in reference measurement with another device when calibrating or adjusting the transmitter.
3
Check that the duct diameter is suitable for the probe body (see Transmitter Dimensions). Ideally, the sensor (probe head) should be installed in the middle of the duct.
4
Maximum air flow speed: 50 m/s (with sintered filter).
5
Avoid installing the transmitter in dead legs. Supersaturation can occur in areas where there is no air flow.
6
Do not install the probe in a downward angle. Condensation can travel to the sensor along the probe body if the probe points down.
7
Install the probe in a 90° angle so that the sensor is placed as close to the middle of the duct as possible.
CAUTION Avoid installing in a location where condensation can fall on the sensor inside the duct.