Protean Instrument Corporation
107
Service MPC
900
Installing
the
Sample
Detector
Line up the holes on the detector housing with the four mounting holes and tighten the
four screws. Connect the coax cable located at the top of the detector.
Power
Entry
The MPC 900 is equipped with a power entry module located on the rear of the
instrument. This module includes an on/off switch (1 – ON; 0 – OFF) and a fuse
cartridge. The fuse cartridge is removable for fuse replacement and line voltage
selection. To remove, detach the line cord, place a small flat blade screwdriver in the
slot on top of the cartridge, and slide the cartridge forward by turning the screwdriver.
The system is factory set to either ~120 VAC or ~ 240 VAC operation. The fuse
cartridge’s insertion orientation selects Input Line Voltage of 120 VAC or 240 VAC. Fuse
size ratings are:
120 VAC 0.75 A (SB)
230 VAC 0.4 A (T)
Line
Voltage
Selection
To select the line voltage, insert the cartridge so that the printed white arrow below the
appropriate line voltage selection is pointing down towards the black arrow in the lower
right hand corner of the module housing