moisture.IQ User’s Manual 25
Chapter 1. Installation
1.9.4.3 Explosion-proof Delta F Oxygen Cells
Figure 21 below shows the explosion-proof oxygen cell. The oxygen cell has a set of sensing and a set of
secondary electrodes that are wired to a terminal strip in the explosion-proof enclosure. Connect the
explosion-proof oxygen cell using a four-wire shielded cable. Connect one end of the cable to the OXYGEN
terminal block on the back of the moisture.IQ and the other end to the terminal strip in the oxygen cell
enclosure. Feed the cable wires through one of the cable ports in the side of the explosion-proof enclosure.
Refer to Figure 18 on page 22 and Table 4 below for the required connections.
Figure 21: Explosion-Proof Delta F Oxygen Cell
Table 4: Explosion-proof Oxygen Cell Connections
Connect:
To Oxygen Cell
Terminal Block
To moisture.IQ OXYGEN
Terminal Block:
red wire (+) pin 1 pin 4
green wire (–) pin 2 pin 3
white wire (+) pin 3 pin 2
black wire (–) pin 4 pin 1
MAX
MIN
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