Flowserve NRA 1-3 Bedienungsanleitung PDF herunterladen (Seite 6)

NRA 1-3

Technical Data

Supply voltage

230 V, 50 / 60 Hz

115 V, 50 / 60 Hz optional

Input

16 inputs for measuring electrodes NRG 16-19, NRG 16-27, NRG 16-28

1 input for temperature sensor, e. g. TRG 5-63, temperature sensing element Pt 100

Output

1 volt-free relay contact

Contact material: AgNi 0,15

Max. contact rating for switching voltages of 24 V AC/DC, 115 V AC and 230 V AC:

4 A resistive / inductive

Electrode voltage

12 V

Banking-up of condensate setting

Difference temperature condensate/installation dts 1 K to 100 K, adjustable in steps of 1 K

(mode 1 and 6)

Difference temperature condensate/switchpoint banking-up of condensate dtC 1 K to 100 K,

adjustable in steps of 1 K (mode 2 and 7)

Switchpoint banking-up of condensate 0 °C to 255 °C, adjustable in steps of 5 K (mode 2 and 7)

Indicators and adjustors

1 Three-digit seven-segment LED display, red, for indicating faulty steam traps and status and error

messages

3 LEDs for indicating banking-up of condensate, steam loss and malfunction in measuring electrode

3 Pushbuttons for parameter settings

1 Ten-pole code switch for system conﬁguration

Delay of response

max. 5 sec.

Power consumption

max. 4 W

External fuse

63 mA

Design

NRA 1-3a: for wall mounting

NRA 1-3e: for panel mounting

Protection

NRA 1-3a: IP 65 to EN 60529

NRA 1-3e: Front: IP 65 to EN 60529, back: IP 00

Protection class

NRA 1-3a: 2 (completely insulated)

Max. admissible ambient temperature

55 °C

Enclosure

Material: ABS

1 2 3 4 5 6 7 8 9 10 11 ... 23 24

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