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[SENSe]
[SENSe:]FUNCtion:CUSTom:REFerence
Parameters
Comments
Usage
244 HP E1415 Command Reference
[SENSe:]FUNCtion:CUSTom:REFerence [< range >,](@< ch_list >)
with the custom Engineering Unit Conversion table loaded with the
DIAG:CUST:PIECE command. Measurements from a channel linked with
SENS:FUNC:CUST:REF will result in a temperature that is sent to the Reference
Temperature Register. This command is used to measure the temperature of an
isothermal reference panel using custom characterized RTDs or thermistors. Contact
your Hewlett-Packard System Engineer for more information on Custom Engineering
Unit Conversion for your application.
Parameter
Parameter
Name
Type
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
generates 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 *CAL? command calibrates temperature channels based on Sense
Amplifier SCP setup at the time of execution. If SCP settings are changed,
those channels are no longer calibrated. *CAL? must be executed again.
•
Related Commands: DIAG:CUST:PIEC, SENS:FUNC:TEMP,
SENS:FUNC:CUST:TC, *CAL?
•
*RST Condition: all custom EU tables erased
program must put table constants into array table_block
DIAG:CUST:PIEC 1,table_block,(@108)
SENS:FUNC:CUST:REF .25,(@108)
include this channel in a scan list with thermocouple channels (REF channel first)
INITiate then TRIGger module
links channels
Range of
Values
see comments
100 - 163
send characterized reference transducer
table for use by channel 8
link custom ref temp EU with ch 8
Default
Units
VDC
none
Chapter 6
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