Siemens 7MB1420, Instruction Manual, Page: 64 / 74

Adjustment and calibration functions
K
K
Iden-
tifier
Value
1 Basic temperature
(Temperature 0)
(Value 2 - Value 0)
2
*
1000
(Temp. 2 – Temp. 0)
(Value 0 - Value 1)
3
*
1000
(Temp. 0 – Temp. 1)
Iden- Setpoint
tifier
1 Temperature of analyzer section with
average ambient temperature (in ˚C;
see function 60, identifier 2)
2 Change in display with increase in
temperature (function 61, identifier 4)
3 Change in display with reduction in
temperature (function 61, identifier 4)
Procedure
1. Calibrate zero of basic temperature
(function 5)
2. Switch on measuring range 1
3. Select function 71 and enter a value of
zero for identifiers 2 and 3
4. Measure (see example)
5. Enter identifier and setpoints under
function 71
Caution! Function 71 might influence zero!
*** 71 Compensation of temperature influence on
zero
CL
7 1
Identifier value
n
Example:
Value 1 with
Temp. 1 < Temp. 0
Value 0, 1, 2 is the measured value (as
indicated under function 61, identifier 4)
Value 0 with Temp. 0
Value 2 with
Temp. 2 > Temp. 0
Zero at average
ambient temperature
(e. g. 25 ˚C)
A-28