Andover Controls CMX 240 Series User Manual

22 CMX 240 Series Installation Guide
Note
Any CMX 240 can supply 26 V at 70 mA current for up to 20 tank
probes. Refer to the manufacturer’s documentation for probe
information.
The TankNet requires a communications Stahl intrinsic safety barrier.
After you connect TankNet to any CMX 240 controller, you wire the
other end of the TankNet cable to the safety barriers.
The probe power supply cable requires a power supply Stahl intrinsic
safety barrier. After you connect the power supply cable to any
CMX 240 controller, you wire the other end to the safety barrier.
Figure 8 is an illustration of the safety barrier connection.
Figure 8. Diagram of Safety Barrier Connection
To Probe
Wire Safety Barriers and Probe Carefully
To Probe
Hazardous Area Safe Area
Following Manufacturer’s Instructions
Stahl Safety
Barrier Enclosure
Communications
Intrinsic Safety Barrier
Communications
Intrinsic Safety Barrier
To Custom Port
Shield
Common
Ground
To Custom Port
Power Supply
Intrinsic Safety Barrier
Shield
+26V
TankNet
Positive Wire
Negative Wire
Probe Power
Supply
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Andover Controls CMX 240 Series Specifications

General

Brand	Andover Controls
Model	CMX 240 Series
Category	Controller
Language	English