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Parameters
Comments
Chapter 6
is used to compensate all subsequent thermocouple measurements until the register
is overwritten by another reference measurement or by specifying a constant
reference temperature with the SENSE:REF:TEMP command. If used, the reference
junction channel must be scanned before any thermocouple channels. Use the
SENSE:REF:CHANNELS command to place the reference measuring channel into
the scan list ahead of the thermocouple measuring channels.
Parameter
Parameter
Name
Type
type
discrete (string)
sub_type
numeric (float32)
numeric (float32)
range
numeric (float32)
ch_list
channel list (string)
•
See "Linking Input Channels to EU Conversion" on page 64.
•
The <range> parameter: The HP E1415 has five ranges: .0625VDC, .25VDC,
1VDC, 4VDC, and 16VDC. To select a range, simply specify the range value
(for example, 4 selects the 4VDC range). If you specify a value larger than
one of the first four ranges, the HP E1415 selects the next higher range (for
example, 4.1 selects the 16VDC range). Specifying a value larger than 16
causes an error. Specifying 0 selects the lowest range (.0625VDC).
Specifying AUTO selects auto range. The default range (no range parameter
specified) is auto range.
•
If you are using amplifier SCPs, you should set them first and keep their
settings in mind when specifying a range setting. For instance, if your expected
signal voltage is to be approximately .1VDC and the amplifier SCP for that
channel has a gain of 8, you must set <range> no lower than 1VDC or an input
out-of-range condition will exist.
•
The <type> parameter specifies the sensor type that will be used to determine
the temperature of the isothermal reference panel. <type> CUSTom is
pre-defined as Type E with 0°C reference junction temp and is not
re-defineable.
•
For <type> THERmistor, the <sub_type> parameter may be specified in ohms
or kohm.
•
The *CAL? command calibrates resistance channels based on Current Source
SCP and Sense Amplifier SCP setup at the time of execution. If SCP settings
are changed, those channels are no longer calibrated. *CAL? must be executed
Range of
Values
THERmistor | RTD | CUSTom
for THER use 5000
for RTD use 85 | 92
for CUSTom use 1
see comments
100 - 163
HP E1415 Command Reference
[SENSe]
Default
Units
none
Ohm
none
none
VDC
none
253
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