The same command could set channel 12 to measure a 5K thermistor mounted
on a remote reference block. See “ Reference Temperature Sensing with the
HP E1313” on page 40 or “ Reference Temperature Sensing with the
HP E1413” on page 41 for connections.
Supplying a Fixed
Reference Temperature
The
[SENse:]REFerence:TEMPerature <
degrees_c
>
command
immediately stores the set temperature of a controlled temperature reference
junction panel in the Reference Temperature Register. The value is applied
to all subsequent thermocouple channel measurements until another
reference temperature value is specified or measured.
To specify the temperature of a controlled temperature reference panel:
SENS:REF:TEMP 50
Reference temp = 50
°
C
Now begin scan to measure thermocouples.
Linking Strain
Measurements
Strain measurements usually employ a Strain Completion and Excitation SCP
(HP E1506 and HP E1507). To link channels to strain EU conversions send the
[SENSe:]FUNCtion:STRain:<
bridge_type
> [<
range
>,](@<
ch_list
>)
command.
•
<
bridge_type
>
is not a parameter, but is part of the command syntax.
The following table relates the command syntax to bridge type. See
the HP E1506/E1507 SCP User’s Manual for bridge schematics and
field wiring information.
Command
Bridge Type
:FBENding
Full Bending Bridge
:FBPoisson
Full Bending Poisson Bridge
:FPOisson
Full Poisson Bridge
:HBENding
Half Bending Bridge
:HPOisson
Half Poisson Bridge
[:QUARter]
Quarter Bridge (default)
•
The
<
ch_list
>
parameter specifies which sense SCP channel(s) to
link to the temperature EU conversion.
<
ch_list
>
does not specify
channels on the Strain Bridge Completion SCP.
•
The optional
<
range
>
parameter can be used to choose a fixed A/D
range. When not specified or set to zero, the module uses autorange.
To link channels 23 through 30 to the quarter bridge strain EU conversion:
SENS:FUNC:STR:QUAR (@123:130)
Uses autorange.
78 Using the HP E1313/E1413
Chapter 3
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