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Chapter 1. Installation and Wiring
1.9 Making Electrical Connections
WARNING! To ensure the safe operation of this unit, you must install and operate the moisture.IQ
as described in this user's manual. In addition, be sure to follow all applicable safety codes and
regulations for installing electrical equipment in your area.
WARNING! Turn off the moisture.IQ before making any electrical connections.
WARNING! The stainless steel Weatherproof enclosure must be grounded.
To open a Weatherproof moisture.IQ unit, use a large, flat-bladed screwdriver to turn the latch on the enclosure cover.
To open an Explosion-Proof moisture.IQ unit, remove all 24 bolts from around the periphery of the enclosure cover. Do
not open an Explosion-Proof moisture.IQ unit that is energized.
To facilitate wiring, Weatherproof and Explosion-Proof moisture.IQ units are equipped with a hinging Chassis that can
be swung out and rested on a rod support. During normal use, the Chassis is fixed in place by a latch mechanism
located at the center of the mounting panel.
To release the Chassis from its locked position, the latch pin at the center of the mounting panel is pushed upwards (in
the direction indicated by the surrounding label). To lock the Chassis in place, the Chassis is pushed down towards the
mounting panel until the latch engages. In order to safely move the Chassis after cables are installed, service loops for
the Weatherproof units shall be at least 20 inches. Service loops for the Explosion-Proof units shall be at least 18 inches
Make all connections to the back of the meter (see Figure 8 on the next page):
•
The probe connections in the left two sections are for
•
The probe connections in the right two sections are for
•
For each Module, the left group of probe connections (
area use, while the right group of probe connections (
area use.
•
The connections along the bottom of the panel are for power input and remote devices.
14
Module A - Channels 1, 2, 3
Module B -Channels 4, 5, 6
MIS
M-SERIES
O2T
,
,
and
AUX IN/OUT
ALARMS
and
.
.
OXYGEN
) are rated for hazardous
) are rated for non-hazardous
moisture.IQ User's Guide
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