JUMO 202610.0, Operating Instructions Manual, Page: 56 / 68

11 Operation
56
11.6 Special functions
Time-out If no key is pressed for about 25 sec, the transmitter jumps back to the
measurement mode.
Exception:
During the “SERVICE function” and “Calibration” procedures, the
time-out function is not active.
SERVICE This function can be used to prevent undefined reactions in connected
systems while inspecting or cleaning the transmitter or sensor.
Activation by pressing the SERVICE key for more than 2 seconds.
Depending on the programming, the signal output is set to a constant value
(factory setting: 18 mA).
➩
"Settings at the parameter level SERVICE”, page 54.
Deactivate by pressing the SERVICE key again.
CALIBRATION Pressing the key for more than 2 seconds will start the calibration
procedure.
The output signal will be set to the value (normally 18 mA) that has been
defined as the service current.
The calibration procedure is performed automatically, lasts up to 15 minutes
and ends automatically.
➩
"Calibration”, page 42ff.
11.7 CODE
Inhibit The transmitter as a whole can be protected against unauthorized operation
by activating the CODE function.
➩
"”, page 54.
With active CODE function, no action can be performed apart from
deactivating the CODE function.
Example of
display with
active CODE
function
(1) Indicates that the CODE function is active
CAL
O
2
INPUT
CODE
UNIT
mg/l
(1)