Multiload Ii Analog Wiring; 5.4.4.1 Rtd Wiring - Toptech MultiLoad II EXL Installation Manual

CHAPTER 5– CONNECTING FIELD DEVICES TO THE I/O BOARD

MultiLoad II Analog Wiring

5.4.4.1 RTD Wiring

I/O DIGITAL/ I/O 2 METER
ANALOG METER 0
IO_DA TB4 IO_2M TB4
✓
V+ 1 V+
✓
R+ 2 R+
RTD RTD
✓
R- 3 R-
✓
COM 4 COM 4
Note: All 4 wires MUST be run to the sensor. Do not simply jumper REF- to COM or REF+ to V+ at the FCM II. For 3-wire and 2 wire probes, the
connection of REF- to COM and REF+ to V+ should be as close as possible to the probe (within inches).
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MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
METER 1
RTD
IO_2M TB5
✓ ✓
1 V+ 1
°C
✓ ✓ °F
2 R+ 2
RTD
✓ ✓
3 R- 3
RTD
✓ ✓
COM 4
°C
°F
RTD
°C
°F
RTD.V+
100Ω
RTD.R+
Pt
RTD.R-
RTD.COM
RTD.V+
100Ω
RTD.R+
Pt
RTD.R-
RTD.COM
RTD.V+
RTD.R+
100Ω
RTD.R-
Pt
RTD.COM
100 Ω
α=0.00385
100 Ω
α=0.00385
100 Ω
α=0.00385