Table of Contents
Advertisement
7. Connect the 150-ohm resistor to the Return
Electrode jack.
8. After a second, press MONITOR SET. If there
is no beep or flash, A.R.M. calibration is com-
plete.
If the unit refuses the 150-ohm calibration, it will
also cancel the 10-ohm calibration. Make sure the
proper resistances are well connected and repeat
both 10 and 150 ohm calibrations.
9. Using the Coag knob, make sure that neither
10 or 150 ohm selection is flashing, then press
PAD. Calibration was successful if the CAL Menu
"Pd" appears steady.
•If HLP 10 appears after pressing PAD, press
PAD twice to return to the ARM Cal mode and
correct the problem before exiting CAL.
Otherwise the unit will be declared uncalibrated
and will declare HLP 3 when RUN mode is
entered. Complete Power and A.R.M. recalibra-
tion will then be required before returning the
unit to service.
10. This completes A.R.M calibration. At this
point, monopolar or bipolar Power Calibration
may be entered per Section 4.3.2 above.
Otherwise, the unit may be returned to RUN
mode using A3S1. It's a good idea to step
through the CAL Menu selections using the Coag
Power Control knob first to ensure that no selec-
tions are flashing.
11. After A.R.M calibration is completed and
RUN mode reentered, repeat the A.R.M.
Calibration Checks in Section 4.2.3.
4.4 OPTION SELECTION
The Sabre 180 may be reconfigured in the field to
change the mains voltage range and to change the
power-up setting restore feature. These selections
may be made using ordinary hand tools. No sol-
dering is required. Refer to Section 5.2 for inter-
nal access instructions.
4.4.1 Mains Voltage Strapping
The unit is factory-configured, fused and labeled
for 100, 115 or 230V 50-60Hz AC operation.
Field reconfiguration is simple, but the unit mains
fuses must be replaced and the unit should be
labeled to reflect the altered mains requirements.
If the factory reconfigures mains voltages, the
nameplate and fuse labels are replaced.
See Figure 5.4 for schematic representations of
the three mains voltage strap options. All options
are strapped using the A6TB1 terminals closest to
the rear panel. TB1 pin numbers are identical to
the numbers marked on A6T1 primary leads.
Equipment:
•Phillips screwdriver to remove top cover screws.
•1/8'' (3mm) straight slot screwdriver or equiva-
lent.
•Needle-nose pliers.
•Wire cutters and strippers.
•#18AWG 300V 80 o C white insulated stranded
hookup wire.
•Replacement 5x20mm 250V slo-blo fuses for
the new voltage range.
•Robust label stock to identify the new mains
voltage and fuse rating.
Procedure:
1. Disconnect mains cord from unit.
2. Open top cover.
3. Locate A6TB1 above power transformer
A6T1. Note that TB1 pins are numbered 1-6, left
to right, corresponding to T1 lead numbers.
4. Refer to MAINS VOLTAGE STRAPPING in
Figure 5.4. Notice that the black and white
A6W1 leads connect to the rear half of TB1.
5. Loosen the rear TB1 screws as required to
remove the connections not required for the new
mains voltage range.
6. If restrapping from 230V to 115 or 100V , pre-
pare a 2'' (5cm) length of hookup wire, stripping
the ends 3/16'' (5mm).
7. Carefully twist wire ends and loosen TB1
screws liberally before inserting wires. This will
prevent loose strands from pulling loose and caus-
ing ground faults. Needle nose pliers will be help-
ful. Paired wires should be twisted together
before insertion.
4-9
Advertisement
Table of Contents
Troubleshooting
