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Ward Industries Ltd. has 30 years experience in the process control industry.
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Solids/Dry Products
Ultrasonic
Vibrating Fork
Float Switches
VLS
CLS
PLS
Squitch 2
003 Sensor
Mini Squing
Squing 2
S01DB/F84
S36DA/F84
SMA1
Squing 2
S36DA/F84
S01DB/F84
SMA1
Minisquing
003
Squitch 2
PLS
VLS
CLS
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M Switch (SMA1) Mobrey Liquid Level Float Switch

What is a SMA1 Magnetic Liquid Level Switch?

SMA1 (M Switch) by Mobrey Measurement is a magnetic liquid level switch and is the most cost effective of the horizontal switches. It is 316 stainless steel construction, has a contact rating of 15A/250V and the maximum temperature is 130 deg C. SG 0.75. M-Switch is a float operated liquid level switch to give a voltage free contact for alarm signalling or as part of a pump control system

SMA1 Magnetic Float Switch Features:

- Small in-tank dimensions, suitable for use where space in a vessel is limited
- Tough industrial build quality
- Simple and proven design
- Operates in most liquids
- Flanged or threaded mounting
- European Directive compliance
- ATEX Flameproof models Exd available


- Low level alarm in lubricating oils and fuels
- Pump control
- High and low alarms in condensate tanks
- Level alarm and pump control in storage tanks


M-Switch Weatherproof
Model
Flange
Conduit thread
Pressure at 20 degC
SMA1
Mobrey 'A'
M20 conduit
19 bar
SMB1
2" BSPT
M20 conduit
19 bar
SMN1
2" NPT
1/2" NPT conduit
19 bar
SMD1
Mobrey 'D'
M20 conduit
3 bar

M-Switch Flameproof
Model
Flange
Conduit thread
Pressure at 20 degC
SMA2
Mobrey 'A'
M20 conduit
25 bar
SMB2
2" BSPT
M20 conduit
51.5 bar
SMN2
2" NPT
1/2" NPT conduit
51.5 bar

Mobrey SMA1 (M-Switch)

SMA1