Lakeshore 331S - Calibration Specific Interface Commands

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Lake Shore Model 331 Temperature Controller User’s Manual

8.9.5 Calibration Specific Interface Commands

CALG Gain Calibration Constant Command

Input: CALG <input>, <type>, <value>[term]

Format: a,nn,±nnnnnnn

<input> Specifies which input or analog output the gain calibration constant will be

provided to. Valid entries are A or B for inputs and V for the analog output.

<type> Specifies the input sensor type. Valid entries are:

0 = Silicon Diode 6 = Thermo/25mV

1 = GaAlAs Diode or

Analog Output 7 = Thermo/50mV

2 = 100

Ω Plat/250 – Reversal Off 10 = 100Ω Plat/250 – Reversal On

3 = 100

Ω Plat/500 – Reversal Off 11 = 100Ω Plat/500 – Reversal On

4 = 1000

Ω Plat – Reversal Off 12 = 1000Ω Plat – Reversal On

5 = NTC RTD – Reversal Off 13 = NTC RTD – Reversal On

<value> Gain calibration constant value.

Remarks: Provides the gain calibration constant for the selected input or analog output.

CALG? Gain Calibration Constant Query

Input: CALG? <input>, <type>[term]

Format: a,nn

<input> A, B, or V

<type> 0

– 7 or 10 – 13

Returned: <value>[term]

Format: ±nnnnnnn (Refer to command for description)

CALREAD? Six Digit Input Reading Query

Input: CALREAD? <input>[term]

Format: a

<input> A or B

Returned: <value>[term]

Format: ±n.nnnnn

Remarks: Returns 6-digit value of selected input reading. Used for CALZ and CALG functions.

CALRSTG Reset Gain Calibration Constant Command

Input: CALRSTG <input>, <type>[term]

Format: a,nn

<input> Specifies which input for which to reset the gain calibration constant to the

default value. Valid entries are A or B for inputs and V for the analog output.