MTS Series 793 - Manual (Page 317)

b. Add the value of the Electrical Zero control to the Fine Zero control on the Calibration tab of the Inputs
panel.
c. If necessary, clear the Electrical Zero Lock box.
d. Set Electrical Zero to zero, then set the Electrical Zero Lock box.
2. Method 2
You can use the calibration data as is provided it is used on the same conditioner. However, if you move
the calibration data to a different conditioner, you must manually duplicate the Electrical Zero value in the
current parameter set to the parameter set associated with the new input.
a. Note the value of the Electrical Zero control on the Offset/Zero tab of the current Inputs page.
b. Set the Electrical Zero control on the Inputs page associated with the new input to the same value,
then set the Electrical Zero Lock box.
Note:
The amount of potential error introduced when Electrical Zero is modified after a linearization
calibration is a function of the amount of linearization correction applied.
When set after calibration
If the Electrical Zero value was set after the calibration was performed, you must add the value of the Electrical
Zero control to the Manual Offset control, as follows:
1. Note the value of the Electrical Zero control on the Offset/Zero tab of the Inputs panel. The value is
expressed in volts.
2. Convert volts to engineering units, where 10 volts corresponds to 110% of the calibrated full-scale range
of the conditioner, making one volt equal to 11% of the full-scale range.
3. Add the converted value to the Manual Offset control on the same panel.
4. If necessary, clear the Electrical Zero Lock box.
5. Set Electrical Zero to zero, then set the Electrical Zero Lock box.
When set before and after calibration
If the Electrical Zero value was set to an unknown value before the calibration was performed, and then
modified after the calibration, there is no way to recover and the sensor must be recalibrated with Electrical
Zero set at zero and the Electrical Zero Lock box set.
About Gate Interlocks
A gate interlock is a station interlock usually associated with specimen installation on newer load frames with
actuator speed settings.
In this instance, when the load frame is switched to the Slow (low flow) actuator speed setting, the load frame
opens a set of contacts connected to J29 on the HSM board to force a gate interlock.
MTS Series 793 Control Software 317
Using Station Manager to Run Tests