EVS452-21N [TE]
EXTENDED VERTICAL LIQUID LEVEL SENSORS;型号: | EVS452-21N |
厂家: | TE CONNECTIVITY |
描述: | EXTENDED VERTICAL LIQUID LEVEL SENSORS |
文件: | 总4页 (文件大小:292K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
te.com
EXTENDED VERTICAL
LIQUID LEVEL SENSORS
EVS Series
Two position level switching
Mounted on the top wall of a tank
Reliable hermetically sealed reed switches
Body and float made from inert materials
The EVS series of point liquid level switches demonstrate a high degree
of reliability due to the use of non-reactive wetted components and a
unique reed switch designed specifically for level sensing applications.
The sensor utilizes a moving float with an embedded magnet to activate
one of two reed switches located in the sensor body.
Features
Full and/or empty detection
Voltage rating up to 175VDC
Current rating up to 0.4 amp
Compact easy to install design
Optional cable lengths
As the liquid level raises the float, it moves a magnet from the bottom
switch to the top switch. The use of two switches provides an indication
of three different level conditions.
The reliability of this sensor results from a very simple operating principle,
a single moving part, media compatible wetted materials, and a unique
reed switch design.
Includes mounting hardware
The sensor mounts into the top wall of a liquid storage tank using an M16
x 2.0 threaded fitting. The M16 mount is available in an internal or
external configuration. The outputs are simple N.O. or N.C. SPST reed
switches that utilize Ruthenium contact points for reliability. Electrical
outputs are three wires with PVC insulation and optional lengths of 0.5 m
or 2.0 m.
Applications
Water and fuel storage tanks
Pump on/off controls
Marine bilge and ballast tanks
Flood detection and prevention
Coolant level indication
Livestock watering tanks
Irrigation systems
Water treatment plants
Waste water tanks
›
CLICK HERE
CONNECT WITH A SPECIALIST
Page 1
TE CONNECTIVITY SENSORS /// EVS SERIES
10/2020
LIQUID LEVEL SWITCH
EVS Series
Absolute Maximum Ratings(1)
Parameter
Min
Max
Units
Notes/Conditions
DC contact voltage
DC contact current
RMS contact voltage
RMS contact current
175
0.4
125
0.28
110
60
V
A
Do not exceed 5 W
V
A
Model 3xx
-30
-30
-30
-1.0
1.0
1.0
°C
°C
°C
Bar
mm
mm
Storage and operating
temperature
Model 4xx
Model 7xx
80
Fitting pressure
4.7
10
Internal tank pressure
Tank wall thickness (Internal
mount)
Tank wall thickness
(External mount)
(1)Maximum limits the device will withstand without damage
4.0
Product Specifications
Parameter
Details & Options
Mounting Orientation
Fitting
Top entry (Internal or external)
M16 x 2.0 Internal or External
Switch Operation
Contact Forms
Both switches N.C. when float is at the bottom of the body
Top switch – Form B (N.C. SPST)
Bottom switch – Form A (N.O. SPST)
Contact Material
Contact resistance (max)
Ruthenium
140 mΩ
Housing: Nylon 6.6
PVC
Brass
Glass filled nylon 6.6
PVC
Housing and Float Material Options
Float:
Polypropylene
Cable Description
Shock
18 AWG 16/0.025mm PVC insulated, UL/CSA/BS6361
±50g 11ms half sign duration
Vibration
±35g 0 – 500Hz
Ambient Humidity
Ingress protection
0 – 95% RH (non-condensing)
IP68 (wetted surfaces) IP65 (non-wetted surfaces)
TE CONNECTIVITY SENSORS /// EVS SERIES
10/2020
2
LIQUID LEVEL SWITCH
EVS Series
Outline Dimensions
Internal Fit
External Fit
Schematic and Switch Operation
Mounting Detail & Hardware
TE CONNECTIVITY SENSORS /// EVS SERIES
10/2020
3
LIQUID LEVEL SWITCH
EVS Series
Ordering Information
Model Number
EVS __ __ __ __ __ __
-
Material (body + float)
Seal Material Options
Body - Nylon 6.6
312
Blank Silicone (model 452 & 722 only)
Float – Glass filled nylon 6.6
N
Nitrile (model 312 only)
Body – PVC
Float - PVC
452
Body – Brass
Float - Polypropylene
722
Cable Length Options
1
0.5m Single insulated PVC
Fitting Options
1
2
5
Internal M16
External M16
Universal fitting kit (Options 1 & 2)
›
CLICK HERE
CONNECT WITH A SPECIALIST
NORTH AMERICA
Tel +1 800 522 6752
EUROPE
Tel +31 73 624 6999
ASIA
Tel +86 0400 820 6015
te.com/sensors
TE Connectivity, TE, TE Connectivity (logo) and Every Connection Counts are trademarks. All other logos, products and/or company names referred to herein might
be trademarks of their respective owners
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However,
TE Connectivity makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall
only be as set forth in TE Connectivity‘s Standard Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental,
indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of TE Connectivity products should make their own evaluation
to determine the suitability of each such product for the specific application.
© 2020 TE Connectivity Corporation. All Rights Reserved.
10/2020
TE CONNECTIVITY SENSORS /// EVS SERIES
10/2020
4
相关型号:
©2020 ICPDF网 联系我们和版权申明