Appendix 1 , handheld wiring – Pulsafeeder MPC Vector User Manual
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20. Appendix 1, Handheld Wiring
The hand-held controller for your MPC can be placed as far as 1000 feet from the main control unit. It is
recommended that all calibrations be completed before the cable is lengthened, as these tasks are easier when
the pump and hand-held controller are close to each other.
POWER
TO
THE
UNIT
MUST
BE
OFF!
A GROUNDING WRIST STRAP
SHOULD BE WORN WHEN MAKING CONNECTIONS TO ANY
PCB
The following standard length cables are available from Pulsafeeder for use with the MPC:
Cable Length
Part Number
Notes
6 feet
NP530130-000
Standard, supplied with all MPC controllers
Others per foot
NP530147-000 (1 ft)
NOTE: do not exceed 1,000 feet total length
20.1 Removal and Connection of the Cable from the Handheld:
1. Open the handheld unit by removing the 4 screws on the face of the unit.
2. Open the unit by separating the cover from the base.
3. Use care with the keypad tail that is connected to the board, it can be left in place during this process.
4. Make a note of what color lead is in each position of the terminal block “J5”. Cut the tie-wrap that
secures the cable. Unscrew each screw on the terminal block “J5” and remove each lead.
5. Loosen the outer domed nut on the liquid tight, releasing the tension on the cable. Pull the cable
through the liquid tight. Thread the new cable through the liquid tight with enough length to reconnect
to the terminal block.
6. Cut the shield wire as close as possible to the outer insulation at the remote end only.
7. Wrap the end of the cable with electrical tape to insulate any remaining shield so that it will not
contact the circuit board, equipment case, or any other parts.
8. Referring to the notes taken earlier, connect each lead of the new cable to the proper position of the
terminal block, lock the lever back in place to hold lead. NOTE: It is recommended that you insert and
secure one lead at a time.
9. Tighten the dome nut of the liquid tight to secure/seal cable.
10. Check that the keypad tail is still firmly connected, re-insert if necessary.
11. Replace cover and tighten screws. Be sure the o-ring is in its groove, paying special attention to the
corners. NOTE: Do not over tighten.