Appendix D:
Appendix D:
Calibration Procedures
Calibration Procedures
General information
General information
The purpose of this procedure is to calibrate the CT100 to published specifications. Following this
procedure will ensure that a CT100 or CT100HF unit will provide accurate measurements within
published specifications. This procedure should only be performed if a CT100 is found to need
recalibration, or is operating outside of published specifications after following the CT100 and
CT100HF Operator Performance Check.
This procedure is not intended to familiarize a user with the instrument. Only experienced users
should perform the CT100 and CT100HF Calibration Procedure. Those inexperienced with
CT100 operation should read the section titled Operating Instructions.
Calibration procedures must be performed at stable internal and external temperatures. Ensure
that the testing environment will have no temperature variation and that the CT100 internal
temperature does not fluctuate.
Calibration interval
Calibration interval
The CT100 should be calibrated annually as described in this appendix.
Required equipment
Required equipment
Item MOHR part number
50 Ω precision terminator CT100-AC-ER50 (for CT100)
CT100-AC-ER50S (for CT100HF)
Capacitive calibrator CT100-AC-C001
Connector, SMA male to BNC female CT100-AC-ISMBF (for CT100HF)
Shorting cap CT100-AC-IBS (for CT100)
CT100-AC-ISS (for CT100HF)
36-inch calibration cable CT100-AC-W536 (for CT100)
CT100-AC-W536S (for CT100HF)
Male-male BNC connector CT100-AC-IBMM (for CT100)
Optional: At the beginning of calibration, verify pulse properties using an external device
capable of taking accurate pulse measurements.
Getting ready
Getting ready
CT100 calibration requires specific device settings before continuing.
1) Disconnect any cables from the front panel cable connector.
Mohr CT100 / CT100HF Operator's Manual 79
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