Vaisala HMT360Series Guide de l'utilisateur télécharger pdf (Page 63)

Chapter 6 __________________________________________________ Calibration and Adjustment

VAISALA_______________________________________________________________________ 61

CHAPTER 6

CALIBRATION AND ADJUSTMENT

This chapter contains instructions for checking the calibration and

adjusting this product.

In this User's Guide the term "calibration" refers to comparing the device's

reading against a reference concentration. "Adjustment" refers to changing

the device's reading to correspond to the reference concentration.

Calibration Interval

HMT360 is calibrated as shipped from the factory. Typical calibration

interval is one year. In demanding applications it may be advisable to make

the first calibration check earlier.

Factory Calibration and Adjustment

The device (or the probe only) can be sent to Vaisala Service Centers for

calibration and adjustment. See section Technical Support on page 74 for

contact information.

User Calibration and Adjustment

Calibration and adjustment is carried out by using the keypad or by using

serial commands. The following additional equipment is needed in

adjustment of HMT360:

- a power supply for the channel(s) to be calibrated (12 ... 24 VDC),

- a multimeter for HMT360 without a display, and

- the calibrated references.

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 96 97

Pas de commentaire

Vaisala HMT360Series Guide de l'utilisateur Page 63