Martel Electronics 3001 - Manual (Page 72)

RTD_MEAS IEEE-488 RS-232 Sequential Overlapped
This command places the primary display in RTD measure mode.
Parameter: <value>
where <value> is one of the following:
CEL display in degrees celsius
FAR display in degrees fahrenheit
<None> display in the last selected temperature unit
Response: <None>
Example: RTD_MEAS CEL
This example sets the 3001 to RTD measure mode, displaying in
degrees celsius.
RTD_TYPE IEEE-488 RS-232 Sequential Overlapped
This command sets the Resistance Temperature Detector (RTD) sensor type for RTD
source and measure. Normally, before using the RTD_TYPE command to select the RTD
type, use the TSENS_TYPE command to select RTD mode, and afterwards set the output
temperature using the OUT command, if applicable. A change in temperature sensors
sets the output to 0 °C. Note that the SPRT can only be used to measure signals, not
source them.
Parameters: <value>
where <value> is one of the following:
PT385_100 100-ohm RTD, curve a=0.00385 ohms/ohm/°C
PT385_200 200-ohm RTD, curve a=0.00385 ohms/ohm/°C
PT385_500 500-ohm RTD, curve a=0.00385 ohms/ohm/°C
PT385_1000 1000-ohm RTD, curve a=0.00385 ohms/ohm/°C
PT392_100 100-ohm RTD, curve a=0.003926 ohms/ohm/°C
PTJIS_100 100-ohm RTD, curve a=0.003916 ohms/ohm/°C
CU10 10-ohm RTD, empirical curve
NI120 120-ohm RTD, empirical curve
YSI_400 YSI thermistor curve
OHMS_HIGH 4000 ohms range
OHMS_LOW 400 ohms range
SPRT standard PRT with user defined error coefficients, only
available for measurement
USR_DEF<x> RTD with user defined custom coefficients, where x is
the curve number and ranges from 1 to 5, i.e.
USR_DEF2 for curve 2
Response: <None>
Example: RTD_TYPE PTJIS_100
This example sets the RTD sensor to a 100-ohm type, using the
PT3916 curve (a=0.003916 ohms/ohm/°C). The resistance of 100
ohms refers to the ice point characteristic, the resistance of the RTD at
0 °C (32 °F).
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