- The NS unit protects aggregates and plants against dry running, overflow, leakage damages and unnecessary loss of liquids. It controls and monitors levels of liquids in waste-water, pools, fish farms and whereever a certain level should be maintained or dosed.
- Depending on the application and the set program, it controls the level between 2 or 3 electrodes by means of opening or closing dose or drain of a container. The top and the lowest electrode protect from overflow or running dry.
- An electrolytic corrosion of the electrodes as well as detonating gas production is excluded due to a AC current measuring path.
- The universal supply voltage AC/DC 24-240 V allows to connect the relay to any common mains.The isolation between electronics (= electrodes) and supply voltage avoids malfunctions caused by potential spreading, also at DC-supplys.
+ Monitoring of up to 4 levels
+ 4 relays with change-over contacts (co)
+ Sensitivity adjustable 5...250 kΩ
+ Switching delay of relays adjustable 0...10 s
+ Switching-delay of alarms (on/off) adjustable 0...10 s
+ Basic programs (selectable with DIP-switches) for various applications
+ Universal supply voltage AC/DC 24-240 V
+ Terminals pluggable
+ Housing for DIN-rail or wall-mount,
+ mounting height 55 mm, 70 m m wide
Thông số kỹ thuật
- Supply voltage Us.......AC/DC 24-240V, <3W, <6VA; AC 20-264 V, DC 20,4-297 V
- Electrode connection.......Level electrodes E1, E2, E3, E4, Reference to E0
- max. voltage/current.......<3Veff / <100 μA
- Sensitivity.......adjustable 5 kΩ...250 kΩ ± 25%
- max. cable-length/capacity.......5 kΩ/approx. 500m/100 nF, 250 kΩ/approx. 50m/10nF
- Hysteresis.......approx. 15% + 5 kΩ
- Switching delay.......adjustable 0,1...10 s
- Relay output.......Type 2 see general technical informations 4 x 1 changeover-contact
- Test conditions.......see general technical informations
- Rated ambient temperature.......-20…+55°C
- Dimensions h x b x d.......Design V6: 90 x 105 x 58 [mm], mounting height 55 mm
- Protection housing / terminals.......IP 30 / IP 20 (terminals pluggable)
- Weight.......approx. 250 g
- Attachment.......On 35 mm DIN-rail or screws M4