6
OPERATION
60
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
5 NE107 DIAG.
Selection / Input
Explanation
5.1 DIS/ENABLE
5.1 DIS/ENABLE
5.1 DIS/ENABLE
5.1 DIS/ENABLE
The different application diagnostic functions can be switched on/off separately.
5.1.1 BLOCKED FL.
Detection of blocked float.
OFF
Not active.
ON
Active
5.1.2 EXT. MAG. F.
Detection of external magnetic field interference (e.g. caused by high DC current).
In order to detect all kind of magnetic field interference it is recommended to switch on
5.1.3 INT MAG-F., too.
OFF
Not active
ON
Active.
5.1.3 INT. MAG. F.
Detection of internal magnetic field interference (e.g. missing float, upside down float).
OFF
Not active.
ON
Active.
5.1.4 PUL. FLOW
Detection of pulsating flow/oscillating float.
OFF
Not active.
ON
Active.
5.2 AUTO CAL.
5.2 AUTO CAL.
5.2 AUTO CAL.
5.2 AUTO CAL.
The factory setting of parameters for the application diagnostics can be optimised by
executing the auto calibration of the respective function. During auto calibration the NE107
application diagnostic is inactive and the status signal function check is activated. The auto
calibration is executed until the function is switched off again. When switching off the new
determined parameters are stored in the non-volatile memory and are used for the
diagnostic functions. Power off/on during auto calibration interrupts the auto calibration
and previous parameters are used.
5.2.1 BLOCKED FL.
Auto calibration to determine the threshold parameter for blocked float.
OFF
Not active.
ON
Active. The auto calibration is executed until switched off again. During auto calibration,
the flow should be as constant as possible.
5.2.2 EXT. MAG. F.
Auto calibration to determine the magnetic field limits for external field detection. During
auto calibration, the complete flow range from 0 to 100% should be applied.
OFF
Not active.
ON
Active. The auto calibration is executed until switched off again.
5.2.3 INT. MAG. F.
Auto calibration to determine the magnetic field limits for internal field detection. During
auto calibration, the complete flow range from 0 to 100% should be applied.
OFF
Not active.
ON
Active. The auto calibration is executed until switched off again.
5.2.4 PUL. FLOW
Auto calibration to determine the threshold parameter for pulsating flow/oscillating float.
During auto calibration, a varying flow rate that is not pulsating should be applied.
OFF
Not active.
ON
Active. The auto calibration is executed until switched off again.
5.3 MAP EVENT
5.3 MAP EVENT
5.3 MAP EVENT
5.3 MAP EVENT
The diagnostics status can be mapped according to NAMUR NE107 classification.
5.3.1 BLOCKED FL.
Status mapping for detection of blocked float.
0: No effect
No status signal
1: Maint. Req.
Status signal: Maintenance required
3: Failure
Status signal: Failure
4: Out Of Spec
Status signal: Out of Specification
5: Fnc. Chk.
Status signal: Function check
5.3.2 MAG. F.
Status mapping for detection of magnetic field interference.