Datasheet

Switching, Sensing and Control Solutions
from GENTECH INTERNATIONAL LTD
Grangestone Industrial Estate, Girvan, Ayrshire KA26 9PS, United Kingdom
Telephone: [phone]. Fax: [phone]
Email: [e-mail]
Website: gentech-international.co.uk
VS
SERIES
VERTICAL
LIQUID LEVEL
SENSORS
DESIGN
FEATURES
● High or low level sensing
● Normally open or
normally closed operation
by float reversal
● Glass filled polypropylene
or Nylon 6.6 material
● External fit option with
compression grommet
● Internal fit option
● UL Underwriters
Laboratories listed File
No. E98428
● Sealing washers and
materials suitable for a
wide range of chemicals
● Reed switch reliability
● Temperature range up to
130°C
● Minimum SG 0.70
● VS4 with UK Water
Research Council
approval for hot and
cold water
● Top or bottom tank entry
The above contact ratings are for resistive loads. For inductive, capacitive and tungsten filament lamp loads refer to the circuit protection notebook.
Available on 1/2” NPT only.
Mechanical Specification
Mounting Operate Shock Vibration
Position Window
Top or bottom tank entry within 5mm 50g for 11ms duration 35g up to 500Hz
travel ±15º vertical (0.196”) from float stop (reed switch only) (reed switch only)
Electrical Connections
Fitted with 2 x 0.5 metres of 18 AWG, 32/0.2mm stranded, with PVC insulation approved to UL/CAS/BS6361.
Operational Characteristics
Switch Option 01 03 04 06 08
Contact Configuration
SPST SPST SPDT SPST SPST
Contact ratings Reed Reed Reed Reed Triac
Switch Switch Switch Switch
Maximum (resistive loads) Volts DC 100 100 100 100 AC only
Volts AC 120 250 70 120 250
Amps 1.0 1.0 0.5 3.0 1.0
Watts 15 15 3 100
Minimum withstand
across open contacts Volts 300 800 200 400 400
Initial contact resistance Ohms 0.25 0.25 0.25 0.75
Environmental Specifications
Housing and Float Material Operating Temperature Minimum Sg
VS3 - Nylon 6.6 -30º to +130ºC 0.85
VS4 - WRC approved Glass Filled Polypropylene -30º to +110ºC 0.70
VS8 - Glass Filled Polypropylene -30º to +110ºC 0.70
Sealing Washer/Compression Grommet
Silicone -54º to +150ºC
Nitrile -30º to +110ºC
EPDM -54º to +150ºC
Detailed chemical resistance information for specific liquids is available on request.
For boiling water applications the maximum operating temperature limits are:- Continuous boiling water 80ºC. Non continuous boiling water 100ºC.