Satec PM130 PLUS Series - Page 96

Chapter 5 Configuring the PM130 PLUS General Meter Setup
PM130 PLUS Powermeter Series_Installation Operation and Manual 96
Table 25: Analog Output Options
Display
Label
Option
Range
Description
-
AO type
0-1mA
±1mA
0-20mA
4-20mA
The analog output type. When connected to the meter, shows the actual
AO type received from the device. When working off-line, select the analog
output option corresponding to your analog module.
OutP
Output
parameter
See Appendix B
Selects the measured parameter to be transmitted through the analog
output channel.
Lo
Zero scale
Defines the low engineering scale (in primary units) for the analog output
corresponding to a lowest (zero) output current (0 or 4 mA)
Hi
Full scale
Defines the high engineering scale (in primary units) for the analog output
corresponding to a highest output current (1 or 20 mA)
When you select an output parameter for the analog output channel, the default engineering scales are
set automatically. They correspond to the maximum available scales. If the parameter actually covers a
lower range, you can change the scales to provide a better resolution on an analog output.
Scaling Non-Directional Analog Outputs
For non-directional analog outputs with a 0-1mA, 0-20mA or 4-20mA current option, you can change both
zero and full engineering scales for any parameter. The engineering scale need not be symmetrical.
Scaling Directional Power Factor
The engineering scale for the signed power factor emulates analog power factor meters.
The power factor scale is -0 to +0 and is symmetrical with regard to 1.000 (-1.000  +1.000). The negative
power factor is scaled as -1.000 minus the measured value, and non-negative power factor is scaled as
+1.000 minus the measured value. To define the entire power factor range from -0 to +0, the default scales
are specified as -0.000 to 0.000.
Scaling ±1mA Analog Outputs
Programming engineering scales for directional ±1mA analog outputs depends on whether the output
parameter represents unsigned (as volts and amps) or signed (as powers and power factor) values.
For an unsigned output value, you can change both zero and full engineering scales.
For a signed (directional) value, you should only provide the engineering scale for the +1 mA output
current.
The engineering scale for the 0 mA output current is always equal to zero for all values except the signed
power factor, for which it is set to 1.000 (see Scaling Directional Power Factor above).
The meter does not allow access to the low scale setting if the parameter is directional. Whenever the sign
of the output parameter is changed to negative, the meter automatically uses the full engineering scale
setting for +1 mA with a negative sign.