MercuryiTC
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Page 117
nn=2P Holding at step P
Hn Control Sensor
n=1 Sensor 1 is selected for automatic control.
n=2 Sensor 2 is selected for automatic control.
n=3 Sensor 3 is selected for automatic control.
Ln Auto PID status
n=0 Auto PID is disabled.
n=1 Auto PID is enabled.
8.4.3 Legacy control commands
8.4.3.1 An command - Auto/Manual
The AUTO/MANUAL command sets control of the heater or the gas flow to AUTO or MANUAL.
MANUAL means that the heater output or gas flow can be set directly using an Onnn or a Gnnn
command.
Allowed values are:
A0 Heater manual, gas manual
A1 Heater auto, gas manual
A2 Heater manual, gas auto
A3 Heater auto, gas auto
8.4.3.2 Dnnn, Innn and Pnnn commands - Set PID Control Terms
These commands set the PID control terms (see section 14).
Dnnn Set derivative control term (minutes)
Innn Set integral control term (minutes)
Pnnn Set proportional control term (K)
8.4.3.3 Gnnn command - Set Gas Flow
The SET GAS FLOW command sets the gas flow to a defined value, when gas flow in is AUTO
control. The value is a decimal percentage of the maximum flow, with a resolution of 0.1%.
8.4.3.4 Hn command - Set Heater Sensor
The HEATER SENSOR command specifies the sensor to be used for automatic control:
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