Always ensure that the electrical requirements of the DAT 420 gas detector meet
the capability of the associated control unit or PLC (see “Specifications”).
Please follow the instructions below:
▪ Field wiring must comply with local regulations and standards in force.
▪ DALEMANS recommend using colour coded cable with solid wires.
▪ Use a shielded or a screened twisted pair cable.
▪ The acceptable cross sectional area of the cable is 0.5 mm².
▪ The maximum cable length should not exceed 1000 m.
▪ The overall cable diameter must be within the range given below.
▪ Pass the cable through the gland to the desired position, then tighten the seal nut by hand
until resistance is felt (when the seal contacts the cable). Tighten with a spanner one
further turn.
Figure 6: DAT 420 wiring
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