Siemens Sitrans LR400 Instruction Manual page 69

6.4 Calibration Interval
Allows you to schedule calibration.
To access these parameters via SIMATIC PDM, open the menu Device – Maintenance
and click on the Calibration Interval tab.
6.4.1 Time Elapsed Since Last Calibration
Read only: time elapsed since device was last calibrated.
Can be reset to zero via the handheld programmer (after performing a service).
6.4.2 Maintenance Required Limit
If the Total Calibration Interval less the Time Lapsed from Last Calibration is equal to
or less than this limit, a Maintenance Required status is generated.
Values
6.4.3 Maintenance Demanded Limit
If the Total Calibration Interval less the Time Lapsed from Last Calibration is equal to
or less than this limit, a Maintenance Demanded status is generated.
Values
6.4.4 Maintenance Alert Activation
Select limits to be activated.
Options
1.
Data for this parameter must be entered in seconds on the device.
7ML19985FH06 SITRANS LR400 (7ML5421) – INSTRUCTION MANUAL
1
Range: 0 to 20 years
Default: 0. 1 64 years
Range: 0 to 20 years
Default: 0.019 years
* OFF Timer Off
ON - NO LIMITS Timer On, No Limit Checking
ON, LIMIT 1 Timer On, Maintenance Required Enabled
Timer On, Maintenance Required and
ON, LIMITS 1 + 2
Demanded Enabled
ON, LIMIT 2 Timer On, Maintenance Demanded Enabled
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