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NRG 26-60 - Installation & Operating Manual -
819875-00
Function
Display and signals, see page 41 / 43 *
The NRG 26-60 level electrode has a 4-digit green 7-segment display for showing measured values and
status information, along with the fault codes. A red and green LED indicate the operating status.
Behaviour upon activation *
The display alternately shows the software version, the type and then the scaled level value.
Behaviour in normal operation (no alarm, no faults) *
The display shows the scaled level value (3-digit + 1 decimal place), e.g. 050.3, and sends CAN data tele-
grams with the level information to be evaluated or displayed by the bus nodes.
The scaling of the measurement 0 – 100 % is set ex-works at a maximum for the
corresponding electrode length. This enables effective level measurements immediately
after installation.
Adjusting the measurement range while bringing into service (CAL.L, CAL.P or CAL.H)
The measurement range should be adjusted to the level of the sight glass while bringing into
service, using the parameters CAL.L, CAL.P or CAL.H, see page 38 - 39. This is the only
way to gain all the benefits of a high measurement resolution in the sight glass.
Behaviour in the event of an alarm (level value above or below limit) *
The scaled level value is transferred by CAN data telegram to the level controller NRR 2-60 or NRR 2 61.
Depending on how the alarm limit values are set in the level controller, an alarm is generated after the
delay time has elapsed.
Behaviour in the event of faults *
A fault code, e.g. E.005, appears permanently in the display. See page 44 for fault codes.
The faulty state is transferred by CAN data telegram to the level controller NRR 2-60 or NRR 2-61. Here,
the fault message triggers an immediate alarm. For information about how the display and contacts work,
see the “System malfunctions” section of the Installation and Operation Manual of the NRR 2-60 or
NRR 2-61.
Alarms and faults in the electrode cannot be acknowledged.
When the alarm or fault is cancelled, the message in the display also disappears. The NRR
2-60 / NRR 2-61 level controller returns to normal operation.
* A detailed allocation between the respective device status, the display and the
alarm LEDs can be found in the tables on pages 41 - 42.
