Source scale, Linear-responding transmitters, Square-law process variables – Martel Electronics MasterCAL User Manual
Page 72
MasterCAL
Users Manual
62
Note
When the MasterCAL is set to display
temperatures in Kelvin, the drywell readout
will show Celsius, and when the MasterCAL
shows Rankine, the drywell will show
Fahrenheit.
Source Scale
This feature lets you scale the output in accordance
with the input requirements of a particular process
instrument’s response. Percent of scale works for
linear-responding transmitters, or square-root
responding transmitters.
Linear-Responding Transmitters
1.
If necessary, press
M
for SOURCE mode.
2.
Select a source function (
m
,
v
,
h
,
q
,
t
, or
p
) as previously described and enter
a value.
3.
Press the
Scale
softkey.
4.
Select
%
from the list.
5.
Use the numeric keypad to enter the 0% of scale
value (
0% Value
).
6.
Press
e
.
7.
Use the numeric keypad to enter the 100% of
scale value(
100% Value
).
8.
Press the
Done
softkey.
Percent of scale remains in effect until you change to
another source function or press the
Scale
softkey
and select another scale mode.
Square-Law Process Variables
When you select
√
within scaling, the calibrator
output value is the percent value entered, squared,
and converted to engineering units.
1.
If necessary, press
M
for SOURCE mode.
2.
Select a source function (
m
,
v
,
h
,
q
,
t
, or
p
) as previously described.
3.
Press the
Scale
softkey.
4.
Select
√
from the list.