Flowserve NRA 1-3 Manual de usuario Pagina 17

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Operation, Alarm and Test – continued –
Mode 1, 6: After the mains voltage has been switched on and the display test has been finished the
system temperature, error messages and current alarms will be indicated.
Mode 2 to 5 and 7: After the mains voltage has been switched on and the display test has been finished
error messages and current alarms will be indicated.
For more information on the codes HIS, Int and tSt see section “Alarm list, Maintenance interval and
Test”, mode 1 to 7.
Start
SYS / °C
Key E
briefly
longer
HIS
Keys
(1)
(3)
InT
Keys
(1)
(3)
dtS
Key E
briefly
longer
ALL
Key E
briefly
longer
Change
temperature
Keys (1),(3)
Key E
briefly
don
dtS
Keys
(1)
(3)
C.xx
Key E
briefly
longer
Change
temperature
Keys (1),(3)
Key E
briefly
don
C.xx
Setting banking-up of condensate, mode 1 and 6
The precondition for this operating mode is:
n the use of the measuring electrodes NRG 16-27, NRG 16-28 (with integrated condensate
temperature measurement at the steam trap)
n the use of a separate temperature sensor for the measurement of the system/(plant) temperature
With the parameter dtS the difference between the condensate temperature in the steam trap and the
plant temperature can be modified either globally for all steam traps (ALL) or for each individual trap
(C.xx). The factory set default value is 40 K. The value can be changed in increments of 1 K up to a max.
limit of 100 K.
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