The versatility, accuracy, high burden and compliance performance make
it easy to apply the Models 800A and 811A to the calibration of AC ammeters,
voltmeters, power factor meters, transducers, line recorders and other
AC responding equipment.
The Rotek Model 800A takes the guesswork out of wattmeter
calibration. Enter the voltage and full scale watts, and the current
is automatically computed. Push the Operate control and the excitation
is applied to the watt-meter's voltage and current terminals. That's
all there is to it! With full-scale power accuracy of 0.05%, the Model
800A covers the range of wattmeters from digital and analog standards
to portables and switchboards. The power factor and fractional setting
allow easy examination of performance under a variety of different conditions.
High driveability accommodates high burden single phase or three phase
meters. The simple volts and watts entry, deviation error determination
and the ability to be completely automated will increase throughput
and reduce calibration costs.
The Rotek Model 811A is ideal for testing watt-hour meter
standards or revenue meters of either the rotating or pulse output type,
from the IB-10 to the latest all-electronic designs. One of the most
common applications is checking registration errors by calculating the
energy required to advance the watt-hour meter an exact number of disk
rotations or pulse counts. If a photocell pickup is required to sense
rotation, the connections are available. The preset count feature is
used and the energy is displayed. This measurement can be made while
the meter is running. Using any one of a number of computer-controllers,
the event count mode can be automated through the IEEE 488 bus. Very
simple routines can be prepared to establish the required conditions,
initiate a count and read out the energy. The average of three runs
is easily computed and automatically compared with calculated absolute
values. Manual-setting and calculation errors are avoided and calibration
times are reduced to fractions of what they might be otherwise.
Model 800 Three Phase Power-Energy Calibration System
The Rotek Models 800A and 811A can be connected to form a
three phase power or energy calibration system. The Rotek Model 800
Three Phase Power-Energy Calibration System consists of three Model
800A or 811A Watt-hour Meter Calibrators (800A for power only, 811A
for power and energy), phase locked to one another. The voltage output
low terminals are connected together and the three voltage high terminals
differ in phase by 120°, constituting a three phase four wire potential
excitation source. The three electrically isolated current terminals
of the calibrators are attached to the respective meter current terminals.
Each phase is independently adjustable in voltage, volt amperes and
phase, and may be placed separately in the operate or standby state.
The output frequency is selectable as 50, 60 or 400 Hz., and can be
synchronized to the input mains frequency. Operation can be automated
through the IEEE bus as described above.
PLEASE NOTE: Rotek continues to provide service and support for all
discontinued products. Please contact firstname.lastname@example.org.
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