74
METER TYPE
Your selection for calibration type determines how the ARC Plus scales the raw input value:
Millivolt
Does not scale the raw input voltage; it
applies a calibration constant of 1. A 300mV
sample will be displayed as 300 on the ARC
Plus, and the channel cannot be manually
calibrated.
Linear
Multiplies the raw input voltage by a
calibration constant that is determined by
comparing the sample voltage to the value
entered during manual calibration. The Linear
(Absolute) input type displays the absolute
value of a linear input, and the Linear
(Negative) input type is used for values with a
negative voltage input; positive values are
clipped to 0.
Degree
Divides the raw input voltage by a 0.1 to
show temperature readings from the Burk
Technology BTU-4 temperature unit, which
provides a 10mV / degree output. The
decimal setting for channels configured for
degree is locked at 1 (000.0).
Indirect
Multiplies the raw input voltage by the scaled
value of the previous channel and multiples
the product by a calibration constant.
Power
Squares the raw input voltage and then
multiples the product by a calibration
constant.
VOLTAGE RANGE
The voltage range is always -10 to +10 on Plus-X inputs. No setting is required.
SAMPLE TYPE AND TIME
The ARC Plus can optionally take an average, minimum or maximum of a meter channel. To select this behavior,
use the Sample Type column. Set the time (in seconds) in the Sample Time (sec) column. You must enter the time
in seconds, so use 600 for 10 minutes, 3600 for an hour, 86400 for a day and 2592000 for 30 days.
DECIMAL PLACES
Use the Decimal Places column to select the location of the decimal place when the ARC Plus reports the channel
reading. For example, a scaled value of 1200 can also be displayed as 1.200, 12.00 or 120.0.
