Hi,Following advice from a supplier and from the dtasheet, we are planning to complete atheyearly calibration of our USB-2416 devicesfrom a NATA certified calibration providerDue to COVID, there is no way we will be able to ship it back to MCC for cal. W and receive everything back in time for our manufacturing rune have found a local supplier who believes they can help us out but they need a calibration guide of some sort. Preferably a step-by-step manual to calibrate the USB-2416. Any assistance in this regard is GREgreatlypreciated.Brett Sawyers
- Job Title: Analogue and Digital Engineer
- Industry: Military
- Application: Production
3 months ago
Only MCC’s factory can perform a full re-calibration of the USB-2416 model. In the field, you can verify the accuracy for the range(s) you need/use, by installing our free InstaCal software utility. From within InstaCal, make sure the datarate for each and every channel is set to 60 Hz in InstaCal. 60 Hz is the setting recommend for thermocouple, so that 60 Hz noise can be better rejected. Make sure the USB-2416 is warmed up for 45 minutes, then run the self-cal in InstaCal (hand's free). The self cal makes minor adjustments based on the last factory calibration, and does not extend the cal cycle past 1 year. Then use InstaCal's analog test, which samples just 1 channel at a time, and the value is displayed digitally on the screen. Voltage accuracy probably only needs to be checked on one channel, as it should not vary channel to channel. Thermocouple accuracy can vary channel to channel, due to cold junction compensation. You would compare the reading you see on the screen, to the maximum specs in the appropriate table in the back of the PDF manual for the USB-2416, though you may also have to factor in the accuracy of your signal source.
3 months ago
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