Flowserve StarPac II Control Valves - Manual (Page 21)

the individual calibration options. Because the valve will change
position during this process, you must confirm that you want to
proceed. You will then have three more menu options to set for
Z
ERO , S PAN and S ENSOR G AIN .
Zero - Apply the atmospheric pressure or the minimum pressure
you want to use for your reference and press ACCEPT. The two
numbers on the right side of the display are register values that
indicate how steady the pressure is in the valve body. Next,
enter the actual pressure applied in the indicated engineering
units and press ACCEPT.
Span - Apply the maximum pressure you want to use for your
reference and press ACCEPT. The two numbers on the right
side of the display indicate how steady the pressure is in the
valve body. Next, enter the actual pressure applied in the
indicated engineering units and press ACCEPT.
Sensor Gain - This option configures the input amplifier range
for the installed sensors using the Up and Dn function keys.
Valtek’s standard sensors normally use the 39mV < out <
78mV
selection. Normally, you should not have to change this
option. If you have questions, consult your Valtek
representative.
P1 - This option calibrates the upstream process pressure sensor in
the unit. You will then have two more menu options to set for Zero
and Span.
Zero - Apply the atmospheric pressure or the minimum pressure
you want to use for your reference and press ACCEPT. The
number on the right side of the display indicates how steady the
pressure is in the valve body. Next, enter the actual pressure
applied in the indicated engineering units and press ACCEPT.
Span - Apply the maximum pressure you want to use for your
reference and press ACCEPT. The numbers on the right side of
the display indicate how steady the pressure is in the valve body.
Next, enter the actual pressure applied in the indicated
engineering units and press ACCEPT.
P2 - This option calibrates the downstream process pressure sensor
in the unit. You will then have two more menu options to set for Zero
and Span.
Zero - Apply the atmospheric pressure or the minimum pressure
you want to use for your reference and press ACCEPT. The
number on the right side of the display indicates how steady the
pressure is in the valve body. Next, enter the actual pressure
applied in the indicated engineering units and press ACCEPT.
Span - Apply the maximum pressure you want to use for your
reference and press ACCEPT. The number on the right side of
the display indicates how steady the pressure is in the valve
body. Next, enter the actual pressure applied in the indicated
engineering units and press ACCEPT.
Thermocouple - This option is used to calibrate the Type-K
thermocouple temperature sensor in the unit. You will then have two
more menu options to set for Zero and Span. Normally this
calibration is done using a temperature controlled bath or a Type-K
StarPac II User Interface Manual 15