LS-541 [ETC]
Liquid level float switch; 浮球液位开关
| 型号： | LS-541 |
| 厂家： | 
ETC |
| 描述： | Liquid level float switch |
| 文件： | 总2页 (文件大小：93K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet Ref: 90500256
Issue: 5.5
LS-541
www.sontay.com
Liquid level float switch
Technical Overview
The LS-541 is liquid level float switch which is intended to
monitor liquid level in a tank or vessel, to provide a switched
output to provide local alarm pump or valve control.
The differential between switching is equivalent to approxi-
mately 10/14mm.
The unit screws directly into a 1” BSPT boss.
Features
•
IP65 Housing
Specification
Product Codes
LS-541
Mounting
Media
1” BSPT boss
Non-aggressive fluids with
specific gravity > 0.75
For high or low level
10/14mm
-40 to +85°C
85°C
5bar max.
Liquid level float switch
Operation
Switching differential
Working temperature
Max. liquid temperature
Operating pressure
Materials:
Float
Rod
Stainless steel
Brass
Bellows
Enclosure
Phosphor bronze
Galvanized steel sheet plate
with ABS cover
15(8)A SPDT @ 230Vac
IP65
Switch rating
Protection
Country of origin
Italy
International Tel: +44 1732 861225
UK Sales Tel: 0845 345 7253
International Fax: +44 1732 861226
UK Sales Fax: 0845 345 7353
Page 1
Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or
expense resulting from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
Data Sheet Ref: 90500256
Issue: 5.5
LS-541
www.sontay.com
Liquid level float switch
Installation
Dimensions
1. The LS-541should only be installed by a competent,
suitably trained technician, experienced in installation
with hazardous voltages. (>50Vac & <1000Vac or
>75Vdc & 1500Vdc)
2. Ensure that all power is disconnected before carrying out
any work on the LS-541.
3. Maximum cable is 2.5mm², care must be taken not to
over tighten terminals.
4. Before installation, test the float gently to ensure that the
micro switch is operational.
5. Screw the LS-541 into a 1” BSPT boss, (making sure
that the arrow is pointing UP) away from system ele-
ments that may cause turbulence or vibration. Ensure
that the float is not obstructed in its movement after in-
stallation.
6. If the switch is to be mounted outside, it is recom-
mended that the unit be mounted with the cable entry at
the bottom. If the cable is fed from above then into the
cable gland at the bottom, it is recommended that a rain
loop be placed in the cable before entry into the sensor.
7. Remove the front cover by removing the 4 screws and
lifting the lid separating it from the main body.
8. Feed the cable through the waterproof gland and termi-
nate the cores at the terminal block. Leaving some slack
inside the unit, tighten the cable gland onto the cable to
ensure water tightness.
9. Replace the lid and tighten the 4 screws after the electri-
cal connections have been made.
Do not under any circumstances remove the protective
cover without isolating the power to the switch.
Connections
Red
Blue
Common
Opens on rise
Earth
White Closes on rise
The switching point is fixed and not adjustable.
International Tel: +44 1732 861225
UK Sales Tel: 0845 345 7253
International Fax: +44 1732 861226
UK Sales Fax: 0845 345 7353
Page 2
Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or
expense resulting from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
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