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Linking Strain
Measurements
70 Programming the HP E1415 for PID Control
A Complete Thermocouple Measurement Command Sequence
The command sequence performs these functions:
•
Configures reference temperature measurement on channel 15.
•
Configures thermocouple measurements on channels 16 through 23.
•
Instructs the HP E1415 to add channel 15 to the Scan List and order
channels so channel 15 will be scanned before channels 16 through 23.
SENS:REF THER, 5000, (@115)
SENS:FUNC:TEMP TC,J,(@116:123)
SENS:REF:CHAN (@115),(@116:123)
Supplying a Fixed Reference Temperature
The [SENse:]REFerence:TEMPerature <degrees_c> command
immediately stores the 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. There is no need to use
SENS:REF:CHANNELS.
To specify the temperature of a controlled temperature reference panel:
SENS:REF:TEMP 50
Now begin scan to measure thermocouples
Strain measurements usually employ a Strain Completion and Excitation
SCP (HP E1506,E1507,E1511). To link channels to strain EU conversions
send the [SENSe:]FUNCtion:STRain:<bridge_type>
[<range>,](@<ch_list>)
•
<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 and HP E1507, and HP E1511 SCPs' user's manual for
bridge schematics and field wiring information.
Command
:FBENding
:FBPoisson
:FPOisson
:HBENding
:HPOisson
[:QUARter]
5K thermistor temperature for
channel 15
Type J thermocouple
temperature for channels 16
through 23
reference channel scanned
before channels 16 - 23
reference temp = 50
Bridge Type
Full Bending Bridge
Full Bending Poisson Bridge
Full Poisson Bridge
Half Bending Bridge
Half Poisson Bridge
Quarter Bridge (default)
°
C
Chapter 3
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