Loading ...
Loading ...
Loading ...
Portable Calibration Baths
Calibrate the Product
73
The source for the 25 °C/35 °C thermocouple calibration point is the E
thermocouple immersed in the Product beside the reference PRT. Set the bath to
25 °C (7109A) or 35 °C (6109A). Get the reference temperature from the
reference PRT and readout.
To calibrate Input Module:
1. Set the statistics Time Window to 60 s.
2. For each calibration point:
a. In the Setup > Probe menu, select the PRT or DUT Type, see Table 12.
b. Connect the electrical standard to the terminals, see Table 12.
c. Set the source to output the quantity shown in Table 12.
d. Wait at least 2 minutes for the readings to settle.
e. Get the average reading in the Monitor > Statistics.
f. Calculate the error as the difference between the average reading and
the source quantity.
g. Check that the error is no greater than the specification.
Adjustment is required if the magnitude of any error is >50 % of the specification.
Adjustments are made to the calibration parameters listed in Table 12. These are
accessible in the Input Calibration menu after you enter the password. Follow
these steps:
For each adjustment point:
1. Get the current value of the calibration parameter associated with the
alignment point.
2. Subtract the error (with sign), which was obtained during the calibration at the
adjustment point, from the calibration parameter.
3. Set the calibration parameter to the new value.
As an example, if 100.000 mV is sourced to the Input Module and it
measures 99.978 mV, and the calibration parameter TCC100 is -0.083.
Change the parameter to -0.061 to shift the readings so the Product
measures close to 100.000 mV.
After you make adjustments to the calibration parameters, repeat the Input
Module calibration to verify that the errors at each calibration point are no greater
than 50 % of the specification.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
Loading ...
Loading ...
Loading ...