HP E1419A User Manual page 64

Chapter 3
Required Current
Amplitude
MAX (488µA)
MIN (30µA)
1. sub_type values of 2250, 5000, and 10000 refer to thermistors that
match the Omega 44000 series temperature response curve. These
44000 series thermistors have been selected to match the curve within
0.1 or 0.2°C.
To set channels 0 through 7 to measure temperature using 2,250 Ohm
thermistors (in this case paired to current source SCP channels 32 through
39):
OUTP:CURR:AMPL 488e-6,(@132:139)
set excite current to 488µA on current SCP channels 32 through 39
SENS:FUNC:TEMP THER, 2250, (@100:107)
link channels 0 through 7 to temperature EU conversion for 2,250Ω thermistor
To set channels 8 through 15 to measure temperature using 10,000 Ohm
thermistors (in this case paired to current source SCP channels 40 through
47):
OUTP:CURR:AMPL 30e-6,(@140:147)
set excite current to 30µA on current SCP channels 40 through 47
SENS:FUNC:TEMP THER, 10000, (@108:115)
link channels 8 through 15 to temperature EU conversion for 10,000Ω
thermistor
To set channel 7 to measure temperature using 100 Ohm RTD with a TC of
.00385 Ohm/Ohm/°C (in this case paired to current source SCP channel 39):
OUTP:CURR:AMPL 488e-6,(@139)
set excite current to 488µA on current SCP channels 32 through 47
SENS:FUNC:TEMP RTD, 85, (@107)
link channel 7 to temperature EU conversion for 100Ω RTDs with .00385 TC.
Thermocouple Measurements
Thermocouple measurements are voltage measurements that the EU
conversion changes into temperature values based on the sub_type
parameter and latest reference temperature value.
Temperature Sensor Types and
Subtypes
RTD,85 | 92 and THER,2250
THER,5000 | 10000
Programming the HP E1419A 63