SRA Smart Reflow Analyzer Hardware Guide SRA-330200-000
21
Calibrating the SRA
To keep your device operating at proper factory specifications, KIC recommends calibrating the unit every 12
months. The procedure detailed below lets you calibrate the device to within +1.1°C (+1.9°F).
The calibration procedure follows a sequence of multiple steps:
1. Removal of SRA module from main assembly
2. Establishing SRA module hardware/software communication
3. Setting/Adjusting the Cold Junction Reference (CJREF) offset value
4. Setting/Adjusting the Gain value
5. Reinstallation of SRA module into main assembly
The CJREF offset is the amount of temperature to add or subtract from the base profiler readings. KIC recommends
setting this value to the same temperature as the CJREF (Internal) temperature. You can view the CJREF (Internal)
temperature by clicking the Get Current TC button on the Calibration Log screen displayed during the procedure.
The Gain Adjust portion of the calibration procedure affects the accuracy of the profiler across its temperature
capability range. For maximum accuracy, set the Gain Adjust calibration value to the highest temperature you
expect to read for your thermal process.
Note: The maximum temperature setting is the highest temperature that the SRA is set to read. The highest
temperature that the device is capable of reading is 1050C (1922F). This device is factory preset at 1050C
(1922F), but you can change the setting to suit your needs.
Note: Only qualified persons should perform the calibration procedure. If you need assistance, training, or need to
arrange for KIC to calibrate your SRA Smart Reflow Analyzer contact KIC Technical Support tech@kicmail.com,
asia.tech@kicmail.com, europe.tech@kicmail.com.
Before starting the procedure
Assemble the following hardware:
o SRA module
o Micro USB communication cable
o Type K thermocouple simulator
o Calibration Adapter* (SRA version)
*Contact KIC to acquire the correct
calibration adapter cable.
sales@kicmail.com
TC Simulator SRA Calibration Adapter
Be prepared to run the Profiling Software 2G application and/or the SRA Hardware Utility.
Do not attempt to calibrate the SRA module with an ungrounded computer as this may produce inaccurate
resuls/
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