ILX Lightwave LDT-5900 Series User Manual page 93

High power temperature controller, precision temperature controller
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CONST:THERMistor
Action
Parameters
Notes
Example
CONST:THERMistor?
Action
Response
Notes
Example
DELAY
Action
Parameters
Example
DISPlay
Action
Parameters
Example
01_10
The CONST:THERMistor command sets the Steinhart-Hart coefficients for thermistor.
Three <nrf values> are required. The first represents C1, the second is the C2, the third
is C3. The scale factors for C1, C2, and C3 are programmed into the instrument and are
as follows: C1*1E-03, C2*1E-04, and C3*1E-07.
Acceptable values C1, C2, and C3 are 0 to +999.99.
A thermistor's nominal Steinhart-Hart coefficients are typically supplied by the thermistor
manufacturer. Precision calibrated 10 kohm thermistors can be purchased through ILX
Lightwave. See Chapter 2 for more details on sensor constants.
CONST:THERMistor 1.25, 2.36, 0.76 action: Sets the Steinhart-Hart coefficients to
C1 =1 .25, C2 = 2.36, and C3 = 0.76.
The CONST:THERMistor? query returns the values of the Steinhart-Hart coefficients.
The response is three values that represent the values of C1, C2, and C3, in that order.
These values are prescaled so that the exponential value is not given. The actual value
of C1 is scaled by 10E-03, C2 by 10E-04, and C3 by 10E-07.
CONST:THERMistor? Response: 1.25, 2.36, 0.76: C1 = 1.25, C2 = 2.36, and C3 = 0.76.
The DELAY command is used to initiate a delay between commands.
One <nrf> value is required. The value is the delay in milliseconds. The value range is
from 0 to 60,000.
DELAY 250 action: Initiates a delay of 250ms prior to the next command.
The DISPlay command is used to turn the display on or off.
One <nrf> value is required. 0= Display off, 1= Display on.
DISP 1 action: Turns the display on.
C O M M A N D R E F E R E N C E
Comm a nd Reference
4
C H A P T E R
C
OMMON
D
D
EVICE
EPENDENT
F
P
RONT
ANEL
C
OMMON
D
D
EVICE
EPENDENT
F
P
RONT
ANEL
C
OMMON
D
D
EVICE
EPENDENT
F
P
RONT
ANEL
C
OMMON
D
D
EVICE
EPENDENT
F
P
RONT
ANEL
77
LDT-5980/ 5948

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