9NRR 2-52, NRR 2-53, URB 55 - USA- Installation & Operating Manual - 850698-00
Usage for the intended purpose
NRR 2-52 and NRR 2-53 level controllers can be used in combination with NRGT 26-x level trans-
mitters as water level controllers and limit switches, e.g., in steam boilers and hot water installa-
tions and in condensate and feedwater tanks.
Configuration, operation and visual display
The equipment is configured and operated and information is viewed via the URB55 visual display
and operating unit. The URB 55 is designed for installation in a control cabinet door or switch
panel. It may only be used when correctly installed.
Overview of possible equipment combinations
Level controller Level electrode Visual display and operating unit
NRR 2-52
NRR 2-53
NRGT 26-2 URB 55
Fig. 1
Key to Fig. 1:
NRR = level controller
NRG = level electrode
NRGT = level transmitter
URB = visual display and operating unit
To ensure proper use in all applications, please also read the Installation & Operating
Manuals for the system components used.
■
You can find the latest Installation & Operating Manuals for the system components
named in Fig. 1 on our website:
http://www.gestra.com
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