Using a calibrator, Figure 19, Adjustment mode – Vaisala MM70 User Manual
Page 45
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT
0605-091
Figure 19
Adjustment Mode
Relative Humidity Adjustment by
Using a Calibrated Reference Probe
When using this adjustment method, start with the steps 1 through 12
on the previous page. Then proceed as follows:
1.
Ensure that the probes are located in the same conditions.
2.
Wait until the readings have stabilized. If the difference between
the humidity readings is less than 2 % RH, there is no immediate
need for adjustment.
3.
Adjust the transmitter reading to correspond a reading of the
reference probe by pressing the ADJUST key.
4. Select
To same as RH
I/II
. Press the SELECT key.
5. Confirm
by
pressing
the
YES key.
6.
To return to the basic display, first press the BACK key, then
the EXIT key twice.
1-point Relative Humidity
Adjustment by Using a Calibrator
You can use Vaisala humidity calibrator HMK15 to achieve the
reference humidities. MI70 indicator is working as a communicator in
the calibration procedure. When using this adjustment method, start
with the steps 1 through 12 on the previous page. Then proceed as
follows:
1.
Insert the transmitter probe to the reference humidity.
2. Press
the
ADJUST key.
3.
Select 1-point adjustment. Press the SELECT key.
VAISALA _______________________________________________________________________ 43