Badger Meter SRD/SRI Valve Positioners - Manual (Page 50)

Menu 9: Calibration Functions for Workshop
M 1 2 3 4
½ - ½ - ½ M, LED 2 and LED 4 flash
Factory calibrations are carried out with sufficient accuracy and remain un-
changed during life time. However, an alignment may become necessary
in some cases after servicing hardware components.
9.1 Reset Configuration to “ex factory” settings
- 1 - - - LED 1 lights up
It is possible to restore the configuration existing at time of delivery via this
function. This may become necessary if it is unclear what had been chan-
ged per menu or in the event that a positioner was taken from one actuator
and mounted to another actuator.
Following this function the device is turned to condition OUT OF SERVICE.
This has to be followed by Autostart for the purpose of adapting the calib-
ration to the actuator and to start IN SERVICE.
The parameters of the factory setting are listed in table Menu Structure.
The calibration of the input current or position sensor makes sense, if after
exchange of the electronic, the valve position is inaccurately displayed.
Calibration of input current (Only with SRD with analog setpoint; does
not apply to fieldbus instruments.)
Serves to equalise possible inaccuracies in the complete current loop.
9.2 Calibration of input current to 4 mA
- - 1 - - LED 2 lights up
The present input current value is taken over as “4 mA” when pressing ( )
key.
9.2 Calibration of input current to 20 mA
- 1 1 - - LED 1 and LED 2 lights up
The present input current value is taken over as “20 mA” when pressing ( )
key.
Calibration of position sensor (angle calibration)
The angle pertaining to the vertical tap position (arrow mark) is factory cali-
brated for the position tap. If the position sensor or the electronics board is
exchanged the mechanical and electric tolerances have to be aligned
through recalibration.
9.4 Calibration of position sensor value to –45°
- - - 1 - LED 3 lights up
The present position value is taken over as angle –45° when pressing ( )
key.
9.5 Calibration of position sensor value to +45°
- 1 - 1 - LED 1 and LED 3 lights up
The present position value is taken over as angle +45° when pressing ( )
key.
SRD Main Menu
7 Output
8 Setpoint
9 Workbench
9 Workbench
9.1 Reset Config
9.2 Calib 4 mA
9.3 Calib 20 mA
The following calibration functions
must only be performed by trained
personnel.
SRD960 with HART
9 Workbench
9.1 Reset Config
9.2 Calib 4 mA
9.3 Calib 20 mA
9 Workbench
9.1 Reset Config
9.2 Calib 4 mA
9.3 Calib 20 mA
9 Workbench
9.4 Calib -45°
9.5 Calib +45°
9.6 Reset all 1
9 Workbench
9.4 Calib -45°
9.5 Calib +45°
9.6 Reset all 1
Page 50
Startup
August 2014 POS-UM-00009-EN-02