Vaisala HMP228 User's Guide download pdf (Page 43)

Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT

CHAPTER 5

CALIBRATION AND ADJUSTMENT

General Notes about Calibration and

Adjustment of Transmitters

Using MM70 in Checking and

Adjusting

Vaisala´s HMP228, MMT318 and MMT330 series transmitters can be

calibrated and adjusted by using MM70.

- In the field: Check and adjust a fixed transmitter´s reading against

MM70´s calibrated reference probe.

- One or two point calibrations and adjustments can be done by using

a MI70 indicator and Vaisala´s humidity calibrator HMK15.

Using Calibration Cables

For calibration and adjustment connect MM70 to fixed transmitter by

using one of the following connection cables.

- 27159ZZ connection cable for HMP228 transmitters

- DRW216050 connection cable for MMT318 transmitters.

- 211339 connection cable for MMT330 transmitters.

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Vaisala HMP228 User's Guide Page 43