Document Part # 026-4417 Rev 2
Page 5 of 9
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2. Reconnect the ribbon cable from the sensor to the PCBA as shown:
3. Ensure no cables are interfering with the sensor module and close the lid.
4. Using a 5/32” (4 mm) hex key/allen wrench, tighten the lid screws in an
X
tightening pattern:
5. MRLDS-450 Network Setup for Site Supervisor and E2
For Modbus end-of-line termination, use 150
Ω
ohm resistor or termination block
P/N 537-2711
.
Do not use MRLDS 120
Ω
ohm
on-board termination with Site Supervisor or E2
.
IMPORTANT:
• For 24 VAC installations sharing a transformer in a daisy-chain configuration, the neutral polarity must be
maintained for all instruments.
• 24 VAC power polarity must not be reversed.
• For a more robust system, a dedicated transformer for each MRLDS is recommended to prevent damage
caused by wiring errors.
• Fasten terminal screws.
Figure 5 - Ribbon Cable
Figure 6 - Tightening Pattern