Vaisala HUMICAP MMT162 Uživatelská příručka stáhnout pdf (Strana 60)

User's Guide _______________________________________________________________________

58 ___________________________________________________________________ M210934EN-D

Calibration and Adjustment Using MM70 and a

Reference Environment

Required equipment:

- A fully charged MI70 indicator (the measurement display that is

included in the MM70 package)

- Connection cable for MM70 hand-held meter (219980)

- One or two reference environments that fulfill the requirements listed

in section Adjustment Points on page 55.

For example, you can use the Vaisala HMK15 humidity calibrator for a

two-point humidity calibration and adjustment. Use the LiCl (11 %RH)

and NaCl (75 %RH) salt solutions. You also need the special cover set

for HMK15 (230914). For two-point calibrations using HMK15, use a

dedicated cover for each salt chamber to avoid long stabilization times

and possible contamination of the salt references.

1. Plug in the connection cable 219980 to port II of the MMT162, and

the other end to port II of the MI70 indicator.

2. If any cable is connected to port I of the MMT162, disconnect it.

3. If the MMP70 probe is connected to the MI70 indicator, disconnect

it.

4. Remove the filter from the MMT162 and insert it in the reference

environment (for example, the LiCl (11 %RH) salt chamber).

5. Wait for 30 minutes for temperature and humidity to stabilize.

6. Turn on the MI70 indicator.

7. Select Functions → Adjustments from the menu of the MI70 and

press Start.

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Vaisala HUMICAP MMT162 Uživatelská příručka Strana 60