Switching, Sensing and Control Solutions
from GENTECH INTERNATIONAL LTD
Grangestone Industrial Estate, Girvan, Ayrshire KA26 9PS, United Kingdom
Telephone: +44 (0) 1465-713581. Fax: +44 (0) 1465 714974
Email: sales@gentech-international.co.uk
Website: gentech-international.co.uk
RS
SERIES
DESIGN
FEATURES
q
q
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擄C
Minimum SG 0.70
RS4 with UK Water
Research Council
approval for cold water
RIGHT ANGLE
LIQUID LEVEL
SENSORS
Operational Characteristics
Switch Option
Contact Configuration
Contact ratings
Maximum (resistive loads)
Volts DC
Volts AC
Amps
Watts
Minimum withstand
across open contacts
Initial contact resistance
Volts
Ohms
01
SPST
Reed
Switch
100
120
1.0
15
300
0.25
03
SPST
Reed
Switch
100
250
1.0
15
800
0.25
04
SPDT
Reed
Switch
100
70
0.5
3
200
0.25
06
SPST
Reed
Switch
100
120
3.0
100
400
0.75
q
q
q
q
q
q
q
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鈥?NPT only.
Environmental Specifications
Housing and Float Material
RS3 - Nylon 6.6
RS4 - WRC approved Glass Filled Polypropylene (cold water only)
RS8 - Glass Filled Polypropylene
Sealing Washer/Compression Grommet
Silicone
Nitrile
EPDM
-54潞 to +150潞C
-30潞 to +110潞C
-54潞 to +150潞C
Operating Temperature
-30潞 to +130潞C
-30潞 to +110潞C
-30潞 to +110潞C
Minimum Sg
0.85
0.70
0.70
q
q
Detailed chemical resistance information for specific liquids is available on request.
For boiling water applications the maximum operating temperature limits are:- Continuous boiling water 80潞C. Non continuous boiling water 100潞C.
Mechanical Specification
Mounting
Position
Operate
Window
Shock
Vibration
Side entry with float
travel 鹵15潞 vertical
within 5mm
(0.196鈥? from float stop
50g for 11ms duration
(reed switch only)
35g up to 500Hz
(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.
1
2
