TESTO 6681 Instruction Manual page 81

5 Return to Test Analog Output using ESC and continue to Test
Relay Output using  or .
 Testing functionality of relay outputs
1 Press SET, choose between Alarm 1, 2, 3, 4 with  or .
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 29) 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 86.
Read off the min./max. values of the three channels by pressing 
1
or  one after the other and return to Main Menu Analysis using
ESC.
Continue to Main Menu Message using  or  or return to
2
Measuring Mode by pressing ESC.
testo 6681 Ethernet
- 1.4 Operation 81