Calib rtmodule dp meas* tcmodule, Calib rtmodule dp meas, Probe connection 2w 3w 4w – Ashcroft ATE-100 Handheld LCD Digital Calibrator User Manual
Page 34: Engnring units
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Revision 4.6 3/2004
ON
OFF
Step 4
To access the temperature setup menu press the
Set up key.
SET UP
Step 5
Use the downward pointing arrow to access the
following selection screen
Calib RTmodule
dp Meas* TCmodule
* dp Meas is an optional feature that allows for the
subtraction or addition of the measurement value of one
sensor from the measurement value of the other sensor.
If the calibrator was not ordered with this option it will
nOT appear on the screen.
Step 6
As required, using the left/right and up/down
arrows select the text “RTmodule”. The text RTmodule
will flash when selected.
Calib RTmodule
dp Meas
Step 7
With the text “RTmodule” flashing press the
enter key.
ENT
The calibrator will respond by displaying:
Probe Connection
2W 3W 4W
This represents the configuration of the RTD to be used,
where the number equals the number of wires the RTD
uses. note: The use of a 4 wire RTD is recommended for
optimum accuracy.
Step 8
Using the left/right arrow keys select the appro-
priate configuration for the RTD probe to be used. In the
example below the 4 wire configuration was selected.
Probe Connection
2W 3W 4W
Step 9
With the desired wiring configuration selected
press the enter key.
ENT
The calibrator will respond by displaying the available
units of measure as follows:
Engnring units:
o
C
o
F K
o
R
Step 10
Using the left/right arrow keys select the
desired engineering unit for the measurements to be
made. In the example here the measurements will be
made in degrees Celsius.
Engnring units:
o
C
o
F K
o
R
Step 11
With the desired engineering unit selected and
flashing press the enter key.
ENT
The calibrator will respond with the following display:
Probe: 12345678
P&a = 385 RO = 1000
On initial use the first selection and the corresponding
probe will appear selected. Use the arrow keys to select
the desired coefficients from the available factory pro-
grammed curves. The GQS-RT1 is pre-preprogrammed
for the following RTDs:
Position Probe
1
α38
5
–200/850
2
α392
∠200/850
3
ni Minco
(ni 120
Ω)
4
Cu 10 ohm
5-8
available for programming using the
optional calibration and programming
software for the GQS-RT1 module.
Important Note:
The GQS-RT1 is compatible with RTD
probes with output resistance values of between 0 and
400 ohms. Use of the module with higher resistance
RTD probes will result in diminished accuracy and pos-
sible damage to the module electronics.
The GQS-RT2 is pre-preprogrammed for the following
RTDs:
Position
Probe
1
α38
5
–200/850
1
PT
1000
2-8
available for programming using the optional
calibration and programming software for
the GQS-RT2 module.
Important Note:
The GQS-RT2 is compatible with RTD
probes with output resistance values of between 1000
and 4000 ohms. Whereas this module will function with
lower resistance RTDs accuracy will be greatly dimin-
ished. In addition, use of the module with higher resis-
tance RTD probes will result in diminished accuracy and
possible damage to the module electronics.
Step 12
Using the left/right arrow keys select the RTD
probe type for the measurements to be made. In the
example here the measurements will be made in using
the PT 100 type 385