User`s guide
Chapter 5 _____________________________________________________________ User Interface 
The default values are 28.96 for DMP74A/B (air) and 146.06 for 
DMP74C (SF6). 
Purge Interval 
The time interval at which the automatic sensor purge is performed 
can be changed between 1 ... 48 hours. For instructions, refer to 
section Changing Automatic Sensor Purge Interval on page 30. 
Device Information 
  0403-040 
Figure 17  Device Information 
Basic information about the indicator and the probe is found as 
follows: 
1.  Open the menu by pressing   Open. 
2. Select Settings and press  . 
3. Select Device information and press   Show. 
4.  The first display gives the information on the MI70 indicator. 
For details on the probe, press 
 More and then press   OK. 
See Figure 18 below. 
5.  To return to the basic display, press 
 Exit. 
VAISALA _______________________________________________________________________ 41 










