
6
Explanatory Notes
– continued –
System description
– continued –
By connecting the level electrodes and the temperature transmitter with the control unit the following com-
binations of functions are possible:
Control unit NRS 1-40.1
Function 1 Function 2 Function 3 Function 4
Low-level limiter
(LW alarm)
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 1
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 2
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 1
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 2
Level electrode
NRG 1x-40
High level limiter
(HW alarm)
Level electrode
NRG 1x-41.1
Low-level limiter
(LW alarm) 1
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 2
Level electrode
NRG 1x-40
High level limiter
(HW alarm)
Level electrode
NRG 1x-41.1
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Low-level limiter
(LW alarm) 1
Level electrode
NRG 1x-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Low-level limiter
(LW alarm) 1
Level electrode
NRG 1x-40
Low-level limiter
(LW alarm) 2
Level electrode
NRG 1x-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
Safety temperature
controller/limiter
Temperature
transmitter TRV 5-40
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