TESTO 6681 Instruction Manual page 52

testo 6681
52
3 Press SET and return to Abs. pressure value
4 Return to Main Menu Settings by pressing ESC.
5 Continue to Main Menu Analysis using  or  or return to Measuring
Mode by pressing ESC.
 Editing code settings
You can set the access code (password).
1 Select Code using  or  and confirm selection with SET.
2
Scroll one digit to the right using , increase value of digit by 1 using
. Confirm with SET or abort entry with ESC.
3 Return to Code by pressing ESC.
1.4.6.6
You can test the functionality of analog and relay outputs. In addition, you
can read off the minimum and maximum readings (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 .
3
Press SET, scroll one digit to the right using , increase value of 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.
- 1.4 Operation
If a code other than "0000" (factory setting) is set, the
transmitter can only be operated once this code has been
entered via the menu.
Editing Analysis main menu
This function affects the analog outputs directly, not only the
test contacts.