Flowserve NRS1-8 Manual de usuario descargar pdf (Pagina 6)

NRS 1-8

Technical Data

Type approval no.

09 - 91 - 0112

Input

Four terminals for the connection of one level electrode

NRG 16-12, PN 40

NRG 17-12, PN 63

NRG 19-12, PN 160

Output

Two volt-free relay contacts (mounted in series in the case of design “b").

Max. contact rating: 250 V, 300 W, 3 A resistive with a life of 5 x 10

switching cycles of 0.35 A

inductive with a life of 2 x 10

switching cycles. Contact material silver, hard-gold plated.

Delay of response

Default factory setting: 3 s

(Up to 25 s possible after prior consultation with TÜV)

Sensitivity

10 µS/cm at 25 °C when used in conjunction with level electrode without measuring surface

extension (cell constant C = 0.3).

0.5 μS/cm at 25 °C when used in conjunction with level electrode with measuring surface

extension (cell constant C = 0.13) – see data sheet “NRG 16-12”.

Indicators and adjustors

2 LEDs “Alarm”, 1 LED “Power”, 1 button “TEST 1”,

1 switch “TEST 2 / INSPECTION”.

Mains supply

230 V +/- 10 %, 50/60 Hz (please state voltage when ordering).

Special voltage: 115 V +/- 10 %, 50/60 Hz or 24 V +/- 10 %, 50/60 Hz.

The ancillary unit URN 1 can be used for 24 V d. c. supply.

Power consumption

5 VA

Protection

NRS 1-8 IP 40 to EN 60529

Admissible ambient temperature

0 °C to 55 °C

Case materials

Base: Noryl SE 1-GFN 2 UL 94 VO, black

Cover: R-ABS UL 94 VO, stone grey

Weight

Approx. 0.6 kg

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

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Flowserve NRS1-8 Manual de usuario Pagina 6