Specifications are subject to change without notice (25.06.99) 1
Level Sensors
• Level control for solid, fluid, or granulated
substances
• SV 150/250: Max./min. control of DISCHARGING
• SV 160/260: Max./min. control of CHARGING
• Factory-set sensitivity
• For capacitive sensors VR.. and VRY..
• 10 A SPDT or 8 A DPDT output relay
• LED-indication: SV 150/250: Power supply and relay ON
• SV 160/260: Relay ON
• AC or DC power supply
Product Description Ordering Key SV 150 024
Level control relays for
capacitive sensors, types VR
and VRY. The relays can con-
trol one or two levels of
charging (SV 160/260) or dis-
charging (SV 150/250).
Housing
Output
Power supply
Type Selection
Plug Output Function Supply: 24 VAC Supply: 115 VAC Supply: 230 VAC Supply: 24 VDC
Circular SPDT Discharging SV 150 024 SV 150 115 SV 150 230 SV 150 724
DPDT Discharging SV 250 024 SV 250 115 SV 250 230 SV 250 724
SPDT Charging SV 160 024 SV 160 115 SV 160 230 SV 160 724
DPDT Charging SV 260 024 SV 260 115 SV 260 230 SV 260 724
Amplifier, Capacitive
Types SV 150/250, SV 160/260
Input Specifications
Sensitivity depends on sensor type
and material
Sensor voltage max. 24 VDC
terminal 6 is negative
Sensor current Activated min. 15 mA, max. 20 mA
Not activated max. < 5 mA
Sensor short-circuit current max. 45 mA
Supply Specifications
General Specifications
Power supply AC-types Overvoltage cat. II (IEC 60664)
Rated operational voltage
through pin 2 & 10 230 230 VAC ± 15%
115 115 VAC ± 15%
024 24 VAC ± 15%
Rated insulation voltage ≥2.0 kVAC (rms)
Rated impulse withstand
voltage 4 kV (1.2/50 µs)
(line/neutral)
Power supply DC-types Installation cat. II (IEC 60664)
Rated operational voltage 724 24 VDC ±15% (pin 2 pos.)
Rated insulation voltage None
Rated transient protection volt. 800 V (1.2/50 µs)
Indication for
Output ON LED, red
Power supply LED, green
(only SV 150/250)
Environment
Degree of protection IP 20 B
Pollution degree 3 (IEC 60664)
Operating temperature -20° to +50°C (-4° to +122°F)
Storage temperature
-50° to +85°C (-58° to +185°F)
Approvals UL, CSA
CE-marking Yes
SV 160/260SV 150/250
2Specifications are subject to change without notice (25.06.99)
Mode of Operation
Max. and/or min. control of
solid, fluid or granulated
substances, e.g. sand,
gravel, sugar or chemicals.
SV 150/250: Relay control of
DISCHARGING
SV 160/260: Relay control of
CHARGING
Example 1
The diagram shows the level
control connected as max.
and min. control, i.e. registra-
tion of 2 levels during charg-
ing (discharging).
The relay releases (operates)
when the max. sensor is in
contact with the substance,
provided that the min. sensor
is immersed. The relay oper-
ates (releases) when the min.
sensor is no longer in contact
with the substance.
Example 1
The diagram shows the level
control connected as max. or
min. control, i.e. registration
of 1 level during charging (dis-
charging).
The relay releases (operates)
when the sensor is in contact
with the substance.
SV 150/250, SV 160/260
Output Specifications
SV150/SV160 SV250/SV260
Output SPDT relay DPDT relay
Rated insulation voltage 250 VAC (rms) 250 VAC (rms)
(cont./elec.) (Cont./elec., cont./cont.)
Contact ratings (Ag-CdO) µ (micro gap) µ (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 ≥5 x 107operations ≥5 x 107operations
Electrical life ≥105operations ≥105operations
Operation frequency ≤7200 operations/h ≤7200 operations/h
Insulation voltages
Rated insulation voltage AC ≥2.0 kVAC (rms) ≥2.0 kVAC (rms)
(cont./elect.) (cont./elect.)
DC None None
Rated impulse withstand voltage AC 4 kV (1.2/50 µs) 4 kV (1.2/50 µs)
(cont./elect.) (IEC 60664) (cont./elect.) (IEC 60664)
DC 800 V 800 V
Wiring Diagrams
Example 1: Two levels max./min. Example 2: One level
Power Supply Power Supply
Max. or Min.
Min.
Max.
Specifications are subject to change without notice (25.06.99) 3
Operation Diagrams
Power supply
Max.
Min.
Relay on
Accessories
Sensors: Types VR and VRY
Bases
Hold down spring
Base covers
Front mounting bezel
Optical: VP
Capacitive: DR, EC
SV 150/250, SV 160/260
Example 1
SV 150/250 DISCHARGING
Example 1
SV 160/260 CHARGING
Power supply
Max./Min.
Relay on
Power supply
Max./Min.
Relay on
Example 2Example 2
Power supply
Max.
Min.
Relay on
