Thermo Scientific Neslab Merlin M 75, Manual

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4 - 6 Merlin
Chapter 4
Thermo Scientific
Internal Sensor
If the temperature fluid temperature display disagrees with your reference
thermometer, the internal temperature sensor (rtd1) may need calibration.
Do not pick calibration points that are outside the safe operating limits of
the fluid in your application. For example with water, 35°C and 5°C would be
typical calibration points.
Run the chiller to a high-end calibration point. Place a calibrated reference
thermometer in the reservoir, ensure the fluid temperature is stable.
Enter Calibration by pressing and holding and then pressing three
times. The display will read CAL. Press and the display will read rtd1.
To calibrate the high-end temperature press and the display will read r1H.
Press again and the display will flash between r1H and the current probe
temperature.
Use and to adjust the r1H display. Once the display temperature
matches the reference thermometer press twice. Press until Stor is
displayed, press to accept the new value.
Repeat for the low-end temperature r1L.
Temperature Sensor
Calibration