TESTO 6681 Instruction Manual page 80

testo 6681 Ethernet
80
1.4.6.6 Editing Analysis main menu
You can test the functionality of analog and relay outputs. In addition, you
can read off the minimum and maximum values (since the last voltage supply
or reset of the min./max. values).
 Testing functionality of analog outputs
1 In Measuring Mode, press SET, select Main Menu Analysis using
 or  and confirm selection with SET.
Test Analog Output is shown.
2 Press SET, choose between Analog Output 1, 2, 3 with  or .
Press SET, scroll one digit to the right using , increase value of
3
digit by 1 using . Any analog output value can be predefined,
e.g. for an analog output of 4 to 20 mA, the value "6.0 mA".
Confirm with SET or abort entry with ESC.
4 Accept setting by pressing SET and test with multimeter (minimum
requirement: resolution of 6.5 digits, accuracy of 100 nA):
Analog output 1 or 2: Via test contacts under service flap, see
diagram.
Analog output 3: Connect measuring cables to terminals for channel 3,
guide measuring cables out of housing and perform measurement
outside of the transmitter, see diagram.
- 1.4 Operation
This function affects the analog outputs directly, not only the
test contacts.
1 Channel 1 test
contacts
2 Service
interface
3 Channel 2 test
contacts
4 Multimeter
5 Ends of channel
3 cables