Calibrating Regulator - Siemens L-828 Manual

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz)
Wiring Connections and
Startup
(contd.)

Calibrating Regulator

 2002 Siemens Airfield Solutions, Incorporated
All rights reserved
16. Connect the 6.6 A series lighting circuit to the output terminals
and tighten all connections.
NOTE: Do not route output cable in the vicinity of other wiring
sensitive to EMI or RFI.
17. Check if the input current x input voltage x CCR efficiency (CCR
efficiency = .90) is larger than the kilowatt rating on the CCR
nameplate. If it is, either reduce the load or replace the CCR with
one having a larger kilowatt rating.
18. Check current output on the regulator in all steps in both remote
and local control.
NOTE: The regulator has been preset at the factory to the
calibrated values given in ? If the regulator is not providing the
correct current, it will have to be calibrated as given in
Calibrating Regulator in this section.
This subsection describes how to calibrate the L-828 LC-type CCRs.
Introduction
A separate true-rms-reading ammeter (minimum accuracy of 1%,
such as a Fluke Meter and Ammeter Probe multimeter with model
Fluke Y8101A Current Probe current clamp or equivalent true RMS
reading meter) is required to carry out the calibration of the
regulator. Do not use the ammeter on the front panel of the
regulator.
CAUTION: If the meter does not say "True RMS," it must
not be used. Failure to observe may result in equipment
damage.
Calibrating the regulator consists of performing the procedures
below in the order given.
1. Setting up the regulator
2. Adjusting output current
3. Adjusting overcurrent
4. Changing input voltage
5. Adjusting current sensing relay
96A0104B
Issued 6/02
Installation
Page 3-10