3300 ACM Installation and Operation Manual Power Measurement Ltd.
Measured Parameters 4-1
4. MEASURED PARAMETERS
4.1 INTRODUCTION
This chapter provides detailed descriptions of each measured
parameter provided by the basic model 3300 ACM , and those
equipped as possible measurement options. These are
categorized as follows:
Measured Parameters:
a) Real-time
b) Energy
Measurement Modes:
a) Demand
b) Minima & Maxima
c) Bi-directional Energy
Figure 4.1.1 provides a complete listing of all measured
parameters, including their associated display labels. The
figure indicates which measurements are included with the
basic model, and which are optional.
Appendix C lists measurement accuracies, display resolu-
tions, and range of readings.
The following sections of this chapter provide additional
information on each parameter type.
Measured Parameter Display Labels
The large number of measured parameter types and their
associated measurement mode combinations requires that the
3300 ACM display parameter names on its front panel using
special formats. Labels for each measurement, phase, and
mode are listed in Figures 4.1.1a and 4.1.1b.
Items in parentheses are not included in the display labels.
For example, kW Minimum for phase A would be:
KWa MIN
For the total for all phases, the word ‘total’ is omitted:
KW MIN
Phase labels are imbedded in the parameter labels to produce the
displayed measurement name. For example, Voltage line-to-
line, thermal demand, maximum for phase AB would be:
Vab DMD MAX
Reactive energy, total of all phases, exported would be:
KVRH EXP
As mentioned in Chapter 3, parameter names which require a
large number of characters will be presented using the entire
display.
Access to Parameters
All measurements provided by the basic model 3300 ACM,
and all measurement options with which the 3300 ACM has
been equipped are continuously monitored or calculated
internally by the 3300 ACM. As described in Chapter 3, the
user can access all parameters directly from the front panel
using the default PHASE and FUNCTION buttons.
All available measured parameters are always accessible via
remote communications (Chapter 5).
Courtesy of NationalSwitchgear.com
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