Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Testing 6 - 19
List WB, place “Q” and “T” in the normal position, pins 2
and 3.
5. Turn the OUTPUT VOLTS ADJ potentiometer
counterclockwise.
6. Restart the rectifier by turning the POWER switch Off
then back On.
7. Adjust the voltage to approximately 26.0 volts (24-volt
rectifier) or 52.0 volts (48-volt rectifier). The RFA LED
on the rectifier should go out.
Meter
Calibration Test
(On Line)
Check calibration of the digital meter annually as preventive
maintenance.
1. Verify the conditions shown in Table 6-D.
2. Hold the meter selector switch in the BATT V position.
Observe and record the voltage readings on the DMM and
the rectifier OUTPUT meter.
3. If the rectifier OUTPUT meter is not within 0.02 volts of
the reading on the DMM, refer to “Calibrate CM3 Digital
Meter” in Section 7 to calibrate the OUTPUT meter.
4. Connect the DMM to the rectifier output terminal and
ground. See Figure 5-2.
5. Hold the meter selector switch in the RECT V position.
Observe and record the voltage readings on the DMM and
the OUTPUT meter.
Table 6-D: Controls for Meter Calibration Test On Line
Controls
Status/Position
Rectifier REG test jacks
Connected to DMM
(Digital Multimeter)
Rectifier POWER switch
On (up)
Rectifier must be connected to battery.
Rectifier DC OUTPUT circuit breaker
On (up)
Plant control connector J2A on CM2
control
board mounted on inside of door
Connected to
P2A on CM2
