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525B
Users Manual
RTD_MEAS
(RTD Measure command) Selects the measure RTD mode.
Parameters: CEL
Example:
Measure the RTD temperature that is attached to the Calibrator RTD terminals, in
Celsius.
RTD_TYPE
(Resistance Temperature Detector Type command) Sets the Resistance
Temperature Detector (RTD) sensor type.
Before using RTD_TYPE, select RTD using the TSENS_TYPE command. After
using RTD_TYPE, select the output temperature using the OUT command.
Changes in temperature sensors changes the output to 0 °C. Once set, the
Calibrator retains the RTD type until power off or reset.
Parameters:
Example:
Set the RTD type to a 100-ohm type, using the PT3926 curve
(α=0.003926 ohms/ohm/°C). The resistance of 100 ohms refers to the ice point
characteristic, (the resistance of the RTD at 0 °C (32 °F)).
5-14
x
x
IEEE-488
RS-232
(Celsius) (optional)
(Fahrenheit) (optional)
FAR
RTD_MEAS CEL
x
x
IEEE-488
RS-232
(100-ohm RTD, curve α=0.00385 ohms/ohm/°C)
PT385_100
(200-ohm RTD, curve α=0.00385 ohms/ohm/°C)
PT385_200
(500-ohm RTD, curve α=0.00385 ohms/ohm/°C)
PT385_500
PT385_1000 (1000-ohm RTD, curve α=0.00385 ohms/ohm/°C)
(100-ohm RTD, curve α=0.003926 ohms/ohm/°C)
PT392_100
(100-ohm RTD, curve α=0.003916 ohms/ohm/°C)
PTJIS_100
(10-ohm RTD, empirical curve)
CU10
(120-ohm RTD, empirical curve)
NI120
(YSI thermistor curve)
YSI_400
(4000 ohms range)
OHMS_HIGH
(400 ohms range)
OHMS_LOW
(Standard PRT with user defined error
SPRT
coefficients)
USR_DEF<x> (RTD with user defined coefficients (x from
1 to 5)
RTD_TYPE PTJIS_100
x
x
Sequential
Overlapped
x
x
Sequential
Overlapped
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