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Model LTC-21 Cryogenic Temperature Controller
SMON
Format: SMON;
LTC-21 Response: None.
Description:
Monitor command. This command places the instrument into the "Monitor" mode.
Temperature is continuously monitored, but no heater control is applied. This command will
terminate the temperature control and Autotune functions, if in progress.
Related Commands:
QISTATE? SCONT
STUNE
SOSEN
Format: SOSEN<1=Heater,
2=Analog>,
<1=Sensor#1, 2=Sensor#2, 3= NONE>;
LTC-21 Response: None
Description:
Assigns a sensor to source the HEATER or ANALOG output.
Related Commands:
QOUT?
SPID
Format: SPID< 1 = Heater, 2 = Analog >,
(and...)
<P Gain 1-1000>, <I Gain 1-10000>,
<D Gain 1-1000 (but not greater than I/2)>,<P0 Manual Percent term>,
<Power Limit Percentage>;
(for Heater)
( or... )
<P Gain1-1000>, <I Gain1-10000>,
<D Gain 1-1000 (but not greater than I/2)>,<P0 Manual Percent term>,
<Analog Out Gain>, <Analog Out Offset>;
(for Analog Output)
LTC-21 Response: None
Description:
Loads a PID and Power Limit for the HEATER, or PID and Gain & Offset for ANALOG
output when the Output control mode is set to PID mode.
Related Commands:
QPID? SHCONT SACONT QOUT?
Page 86
NEOCERA Instrument and Systems Group