Flowserve NRS 2-5 - Manual (Page 9)

9
Technical Data
Input – measuring voltage
1 – 10 V DC (measuring voltage coming from level electrode)
Output – measuring voltage
12 V DC (supply voltage going to level electrode)
Output
2 volt-free relay contacts
Max. contact rating with switching voltages of 24 /115 / 230 VAC: 4 A resistive, 0.75 A
inductive at cos
ϕ
0.5.
Max. contact rating with switching voltage 24 V DC: 4 A
Contact material: silver, hard-gold plated
2 optocouplers (npn), short-circuit protected due to inherent current limiting
characteristics, max. ratings: 70 V, 10 mA
Indicators and adjustors
1 green LED
ALARM
, 2 LEDs
MALFUNCTION
, 1 LED
OPERATION
Mains voltage
24 V DC
Power consumption
2 VA
Case materials
NRS 2-5c
Front panel: aluminium, Fig. 7
NRS 2-5d
Front panel: aluminium, Fig. 7
Weight
NRS 2-5 c/d: approx. 0.6 kg
Installation
NRS 2-5 c
1. Install plastic guide rails into 19" magazine.
2. Install screw-type connector.
3. Insert level switch into the 19" magazine and fasten with screws .
NRS 2-5 d
1. Insert level switch into the 19" magazine and fasten with screws .
Tools
■ Screwdriver (5.5/100)
B
B