Transcript
Input 2 RS485 RS422 I.S. GND
Earth GND Neutral Line NC NO Common NC NO Common
Nano ATG Console
Relay 1 Relay 2
Recommended cable: Belden #88760 (shielded 2-wire twisted pair)
NOTE: No splices allowed between last device connection and I.S. barrier. 12V Barrier
Input 1
PWR SIG GND PWR SIG GND PWR SIG GND PWR SIG GND
Source Return Source Return A B Y Z
Probe/Sensor Junction Box
Probe/Sensor Junction Box
924B Mag Probes and Smart Sensors may be wired in parallel with one home run. Refer to M2010 Nano Installation Guide for details on mixed mutli-drop capabilities of the Nano console.
From Probe Black & Shield to GND Brown to SIG Blue to PWR
GND (Shield)
Probe Cable
From Probe Alternate connection to Internal Relay
SIG (Black)
From Sensor Sensor Cable
Twisted-Pair Petro-Net Cable Part # 12-1029 to Console
Line, Neutral, Ground minimum 14 AWG stranded copper
12 AWG minimum stranded copper for I.S. Ground
A B C A B C A B C
A B C A B C A B C
COMM N.C. N.O. COMM N.C. N.O. COMM N.C. N.O.
OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4
COMM N.C. N.O.
OM4 Module Power Transformer 110/120 V Receptacle
Tank Overfill Alarm NOTE: If a continuous alarm is needed, wire Normally Closed (Open Under Power)
NOTE: All Grounding Connections must connect to Service Panel Ground Lugs
Panel CAUTION: All OPW equipment MUST be on the same phase!
Probe/Sensor Wiring in Junction Box
OM4 Module P-NET 1 P-NET 2 N.C. PWR PWR
Line, Neutral, Ground minimum 14 AWG stranded copper
From Sensor Shield to GND Black to SIG Red to PWR
1 Float 2 Float 3 Neutral 4 Line
PWR (Red) Belden Cable
Conduit To I.S. Barrier
IMPORTANT: All field wiring must comply with NFPA 30A & 70 as well as all national, state and local electrical codes.
NOTE: Tank Alert Ground must connect to Service Panel Ground Lugs
Field Wiring Diagram M2018, Rev. 1
