model 2704 controller installation and operation handbook - Soliton

Transducer Scaling
2704 Controller
19.6.1. Parameter Notes
1. Enable Cal This may be wired to a digital input for an external switch. If not
wired, then the value may be changed.
When enabled the transducer parameters may be altered as described
in the previous sections. When the parameter has been turned On it
will remain on until turned off manually even if the controller is
powered cycled.
2. Start Tare This may be wired to a digital input for an external switch. If not
wired, then the value may be changed.
3. Start Pnt1 Cal This may be wired to a digital input for an external switch. If not
wired, then the value may be changed.
It starts the calibration procedure for:
1. Shunt Calibration
2. The low point for Load Cell Calibration
3. The low point for Comparison Calibration
4. Start Pnt2 Cal This may be wired to a digital input for an external switch. If not
wired, then the value may be changed.
It starts the calibration procedure for:
1. The high point for Load Cell Calibration
2. The high point for Comparison Calibration
5. Clear Cal This may be wired to a digital input for an external switch. If not
wired, then the value may be changed.
When enabled the input will reset to default values. A new calibration
will overwrite the previous calibration values if Clear Cal is not
enabled between calibrations.
6. Threshold Val The input needs to settle within a range which has been set in
configuration level. The threshold value sets the required settling time
for shunt, load cell and auto-tare calibration.
7. Shunt This parameter is an output from the function block which can be
wired to a transducer scale module to close the shunt circuit and
introduce the calibration resistor. It may be used in copy and paste
wiring.
19-14 Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr -00