Field wiring, i/s pre-amp to fpr – Gasboy Fuel Point Reader User Manual
Page 23

System Wiring
03/28/03
3-5
FIELD WIRING, I/S PRE-AMP TO FPR
The following diagram shows the wiring between the I/S PCB in the Fuel Point Reader and the I/S
Pre-Amp PCB located in the pump junction box. These connections should be made after the
FPR mounting is complete, as described in Section 4.
1.
Remove the wiring cover protecting the terminal blocks on the I/S PCB in the FPR.
2.
Strip about 3/8" of insulation from each wire end. To connect the wire, push down on the
orange tab and insert the wire. Release tab and gently tug on the wire to verify a tight
connection.
CAUTION: Wire polarity is not important, but connection to the wrong side of the pre-amp
assembly will cause damage!!! Always make sure the IC chip side of the Pre-
Amp PCB connects to the FPR and the diode side connects to the N-Ring hose
cable.
3.
Replace the wiring cover protecting the terminal blocks on the I/S PCB.
IMPORTANT: Make sure the cover is tight against the chassis, with no more tht 1/16 inch
gap around all sides, to preserve the intrinsic safety of the area.