TESTO 6681 Profibus Instruction Manual page 79

 Testing functionality of relay outputs
Press SET, choose between Alarm 1, 2, 3, 4 with  or .
1
2 Press SET.
The relay can now be tested. You can choose between OFF and ON
using  or . If ON is chosen, the NO contact is closed, the NC
contact opened. If OFF is chosen, the NC contact is closed, the NO
contact opened.
3 To test, route a measuring cable from the relay terminals (see chapter
1.3.3.3, page 31) out of the transmitter to a multimeter (resistance
measurement) or continuity tester.
4 Return to Test Relay Output by pressing either SET (starts relay test) or
ESC (exits the menu without relay test).
 Reading off min./max. values of channels
To reset the max./min. values, see chapter 1.4.6.10, page 83.
Read off the min./max. values of the three channels by pressing  or 
1
one after the other and return to Main Menu Analysis using ESC.
2 Continue to Main Menu Message using  or  or return to Measuring
Mode by pressing ESC.
1.4.6.7 Editing Message main menu
Messages can be confirmed/acknowledged, the last messages can be called
up and the display of the messages can be switched on or off.
Scaling changed
348
h
4/7
testo 6681 Profibus
Operating hours at the time of
message
Message number/number of messages
present
Example: "4/7" refers to the fourth of
seven messages
Message text
- 1.4 Operation 79