specifications are subject to change without notice (25.06.99) 1 level sensors ? 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 product description ordering key sv 120 230 level control relay for con- ductive liquids which can control two levels of charg- ing. usable for one level detection with pin 5 and 7 short-circuited. housing output power supply type selection plug output supply: 24 vac supply: 115 vac supply: 230 vac supply: 24 vdc circular spdt sv 120 024 sv 120 115 sv 120 230 sv 120 724 dp dt sv 220 024 sv 220 115 sv 220 230 sv 220 724 spdt sv 125 024 sv 125 115 sv 125 230 sv 125 724 dpdt sv 225 024 sv 225 115 sv 225 230 sv 225 724 amplifier, conductive types sv 120/220, sv 125/225 (charging) input specifications level probe supply max. 24 vac level probe current max. 2.5 ma sensitivity sv120/sv220 on from 25 to 50 k off from 15 to 37 k sv125/sv225 on from 3-11 to 35-55 k (adj.) off from 1-5 to 20-30 k (adj.) supply specifications general specifications power supply ac types overvoltage cat. ii (iec 60664) rated operational voltage through pins 2 and 10 230 230 vac 15% 50/60 hz, -5/+5 hz 115 115 vac 15% 50/60 hz, -5/+5 hz 024 24 vac 15% 50/60 hz, -5/+5 hz rated insulation voltage 250 vac (rms) rated impulse withstand volt. 4 kv (1.2/50 s) (line/neutral) power supply dc types overvoltage cat. ii (iec 60664) rated operational voltage 724 24 vdc 15% (pin 2 pos.) rated insulation voltage none rated impulse withstand volt. 800 v (1.2/50 s) indication for power supply on led, green output on led, red (724 only red) environment degree of protection ip 20 b pollution degree 3 (iec 60664) operating temperature -20 to +50oc (-4 to +122of) storage temperature -50 to +85oc (-58 to +185of) approvals ul, csa ce-marking ye s sv 120/220 sv 125/225
2 specifications are subject to change without notice (25.06.99) 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. elec- trode is in contact with the li- quid. the relay operates when the min. electrode is no longer in contact with the li- quid. by use of a container of a conductive material (pin 7) can be connected to the con- tainer. if the container is made of a non-conductive material, an additional electrode is needed, indicated by the dot- ted line in the diagram. example 2 if only one level is required, pins 5 and 7 must be inter- connected to select either max. or min. control. wiring diagrams sv 1xx/sv 2xx, two levels example 1 sv 120/220, sv 125/225 sv 1xx/sv 2xx, one level example 2 power supply min. max. max. or min. power supply output specifications sv120/sv125 sv220/sv225 output spdt relay dpdt relay rated insulation voltage 250 vac (rms) 250 vac (rms) (cont./elec.) (cont./elec., cont./cont.) contact ratings (ag-cdo) (micro gap) (micro gap) resistive loads ac 1 10 a/250 vac (2500 vac) 8 a/250 vac (200 va) dc 1 1 a/250 vac (250 w) 0,4 a/250 vdc (100 w) or 10 a/25 vdc (250 w) 4 a/25 vdc (100 w) small inductive loads ac 15 2.5 a/230 vac 2.5 a/230 vac dc 13 5 a/24 vdc 5 a/24 vdc mechanical life 3 5 x 10 7 operations 3 5 x 10 7 operations electrical life 3 10 5 operations 3 10 5 operations operation frequency 7200 operations/h 7200 operations/h insulation voltages rated insulation voltage ac 3 2.0 kvac (rms) 3 2.0 kvac (rms) (cont./elect.) (cont./elect.) dc none none rated impulse withstand voltage ac 4 kv (1.2/50 s) 4 kv (1.2/50 s) (cont./elect.) (iec 60664) (cont./elect.) (iec 60664) dc 800 v 800 v operation diagram power supply max. electrode in liquid min. electrode in liquid relay on accessories conductive level probe: 1 or 2 electrodes vh..., vpc..., vpp... vn..., vny..., vni... vt..., vti..., vs...
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