Flowserve NRA 1-3 - Manual (Page 17)

7
Operation, Alarm and Test
– continued –
Mode , 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 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 to 7.
Start
SYS / °C
Key E
briefly →
← longer
HIS
Keys
() ↓ (3) ↑
InT
Keys
() ↓ (3) ↑
dtS
Key E
briefly →
← longer
ALL
Key E
briefly →
← longer
Change
temperature
Keys (),(3)
Key E
briefly →
don
←
dtS
Keys
() ↓ (3) ↑
C.xx
Key E
briefly →
← longer
Change
temperature
Keys (),(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 6-7, NRG 6-8 (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 K up to a max.
limit of 00 K.