2-point adjustment using a calibrator - HMT120 - MI70

Complete the steps listed in Adjusting RH and T with MI70 handheld indicator before continuing with this adjustment option.

When making a 2-point adjustment, the difference between the two reference conditions must be at least 50 %RH. If the difference is < 50 %RH, the adjustment cannot be made.

1. Remove the filter from the transmitter's probe and insert the probe head into the lower reference condition.
2. Press ADJUST to continue adjusting.
3. Choose 2-point adjustment from the MI70 adjustment menu and press SELECT.
4. Press READY when the reading has stabilized in the first reference condition (can take 30 minutes or more). You can follow the stabilization from the GRAPH display.
5. Enter the correct reference value of the first condition with the arrow buttons and press OK.
6. Remove the probe from the first reference condition and insert the probe head into the higher humidity reference condition.
7. Press READY when the reading has stabilized in the second reference condition (can take 30 minutes or more). You can follow the stabilization from the GRAPH display.
8. Enter the correct reference value of the second condition with the arrow buttons and press OK.
9. Confirm the adjustment by pressing YES (by pressing NO you return to adjustment mode display and no changes are made). If the difference between the two reference conditions is less than 50 %RH, adjustment cannot be done.
10. Turn off the MI70 and detach the connection cable.