Level Sensors Amplifier, Conductive Types SV 120/220, SV 125/225 (Charging) • • • • • • • SV 120/220 Level control for conductive liquids Max.-min. control of CHARGING SV 120/220: Fixed sensitivity SV 125/225: Adjustable sensitivity 10 A SPDT or 8 A DPDT output relay LED-indications: Power supply and relay on AC or DC power supply SV 125/225 Product Description Ordering Key Level control relay for conductive liquids which can control two levels of charg- Housing Output Power supply ing. Usable for one level detection with pin 5 and 7 short-circuited. SV 120 230 Type Selection Plug Output Supply: 24 VAC Supply: 115 VAC Supply: 230 VAC Supply: 24 VDC Circular SPDT DP DT SPDT DPDT SV SV SV SV SV SV SV SV SV SV SV SV SV SV SV SV 120 220 125 225 024 024 024 024 120 220 125 225 115 115 115 115 120 220 125 225 230 230 230 230 Input Specifications Supply Specifications Level probe supply Level probe current Sensitivity SV120/SV220 Power supply AC types Rated operational voltage through pins 2 and 10 230 SV125/SV225 Max. 24 VAC Max. 2.5 mA ON OFF ON OFF From 25 to 50 kΩ From 15 to 37 kΩ From 3-11 to 35-55 kΩ (adj.) From 1-5 to 20-30 kΩ (adj.) General Specifications Indication for Power supply ON Output ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Approvals CE-marking LED, green LED, red (724 only red) 115 024 Rated insulation voltage Rated impulse withstand volt. Power supply DC types Rated operational voltage 724 Rated insulation voltage Rated impulse withstand volt. 120 220 125 225 724 724 724 724 Overvoltage cat. II (IEC 60664) 230 VAC ± 15% 50/60 Hz, -5/+5 Hz 115 VAC ± 15% 50/60 Hz, -5/+5 Hz 24 VAC ± 15% 50/60 Hz, -5/+5 Hz 250 VAC (rms) 4 kV (1.2/50 µs) (line/neutral) Overvoltage cat. II (IEC 60664) 24 VDC ± 15% (pin 2 pos.) None 800 V (1.2/50 µs) IP 20 B 3 (IEC 60664) -20 to +50ºC (-4 to +122ºF) -50 to +85ºC (-58 to +185ºF) UL, CSA Yes Specifications are subject to change without notice (25.06.99) 1 SV 120/220, SV 125/225 Output Specifications Output Rated insulation voltage Contact ratings (Ag-CdO) Resistive loads AC 1 DC 1 or AC 15 DC 13 Small inductive loads Mechanical life Electrical life Operation frequency Insulation voltages Rated insulation voltage AC DC AC Rated impulse withstand voltage DC SV120/SV125 SV220/SV225 SPDT relay 250 VAC (rms) (cont./elec.) µ (micro gap) 10 A/250 VAC (2500 VAC) 1 A/250 VAC (250 W) 10 A/25 VDC (250 W) 2.5 A/230 VAC 5 A/24 VDC ≥ 5 x 107 operations ≥105 operations ≤ 7200 operations/h DPDT relay 250 VAC (rms) (cont./elec., cont./cont.) µ (micro gap) 8 A/250 VAC (200 VA) 0,4 A/250 VDC (100 W) 4 A/25 VDC (100 W) 2.5 A/230 VAC 5 A/24 VDC ≥ 5 x 107 operations ≥105 operations ≤ 7200 operations/h ≥ 2.0 kVAC (rms) (cont./elect.) None 4 kV (1.2/50 µs) (cont./elect.) (IEC 60664) 800 V ≥ 2.0 kVAC (rms) (cont./elect.) None 4 kV (1.2/50 µs) (cont./elect.) (IEC 60664) 800 V Mode of Operation Max. and min. control of charging. Example 1 The diagram shows the level control connected as max. and min. control, i.e. detec- tion of 2 levels. The relay releases until the max. electrode is in contact with the liquid. The relay operates when the min. electrode is no longer in contact with the liquid. By use of a container of a conductive material (pin 7) can be connected to the container. If the container is made of a non-conductive material, an additional electrode is needed, indicated by the dotted line in the diagram. Example 2 If only one level is required, pins 5 and 7 must be interconnected to select either max. or min. control. Wiring Diagrams SV 1xx/SV 2xx, two levels Example 1 SV 1xx/SV 2xx, one level Example 2 Max. Min. Power Supply Max. or Min. Power Supply Operation Diagram Accessories Power supply Conductive level probe: VH..., VPC..., VPP... VN..., VNY..., VNI... VT..., VTI..., VS... Max. electrode in liquid Min. electrode in liquid 1 or 2 electrodes Relay on 2 Specifications are subject to change without notice (25.06.99)