VRC2000 Installation and Operations Manual Page 39
Technical or Setup Assistance
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Setting Up Metering Channels
The programming steps for metering channels are necessarily more
complicated than those of status channels. There are many more parameters
to be programmed for each metering channel than for any status channel.
Gentner Communications strongly recommends taking time to read this
section and experiment with setting up several metering channels before
deciding on the VRC2000’s final programming parameters.
Use the VRC2000 to access a specific metering channel’s set-up information.
The VRC2000 begin list all available metering-channel functions. For each
parameter, the VRC2000 will respond with a preprogrammed message,
followed by the default parameter, followed by a [BEEP].
You enter
☎ “6 0 1”
The VRC2000 will respond:
• CHANNEL IDENTIFIER FOR METERING CHANNEL ONE IS ... {5 MILLISECONDS
SILENCE
, 5 MILLISECONDS SILENCE} ... [BEEP]
Two words from Appendix I: Word List (See Page 125.) can be programmed
as the metering-channel identifier. The default setting for each metering
Channel is two silences (which count as words).
• UNITS IDENTIFIER FOR METERING CHANNEL ONE IS ... {5 MILLISECONDS SILENCE,
VOLTS} ... [BEEP]
Any metering channel can be programmed to identify its value in a
combination of two words from Appendix I: Word List (Page 125). For
example, the words [KILO VOLTS] or [MILLI AMPS] can be programmed
as values.
• CONFIGURATION FOR METERING CHANNEL ONE IS ... {L} ... [BEEP]
Enter a “5” on the DTMF pad to configure this metering channel for linear
readings. Enter a “4” on the DTMF pad to configure this metering channel
for indirect readings. Enter a “7” for power readings.
The VRC2000 will say
• RANGE FOR METERING CHANNEL ONE IS ... {ZERO TO PLUS TEN} ... [BEEP]
Enter a “*” on the DTMF pad to program this metering channel to read a
range from -5–5Vdc; enter a “#” to program it to read a range from 0–
10Vdc.
• CALIBRATION CONSTANT FOR METERING CHANNEL ONE IS ... {ONE, POINT, ZERO,
ZERO, ZERO} ... [BEEP]
When setting the tolerance limits for each metering channel, set them
according the result of the calibration constant multiplied by the voltage or
current sample.
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