Jola Spezialschalter K. Mattil & Co. KG
Klostergartenstraße 11-20
D-67466 Lambrecht
Phone: +49 63 25 / 188-01
 
Level controllers Leakage detectors Other Jola products Search via product names Control of the chemical resistance
General information on Jola Quality management system Addresses: Jola and its agents Help on CD-ROM catalogue
Floating switch for Zone 0, 1 or 2

SI/SSR/1/K/SIL Variante 0
I M2 / II 1 G Ex ia I / IIC T6


  
For use in intrinsically safe circuits in mines susceptible to firedamp or in potentially 
explosive atmospheres in categories zone 0, 1 or 2.

EC type examination certificate: INERIS 03ATEX0149

Application in liquids with a specific density >=0.7 g/cm³
Brochure Mercury-free floating switches and immersion probes [PDF]
Contact 
ball-operated microswitch,
potential-free changeover contact
Float material stainless steel 316 Ti
Seal material PTFE
Appliance protection class 
in installed condition inside the tank: IP 68, 
on the stuffing gland screw fitting outside 
the tank: IP 54
Float protection class IP 68
Float form ball float
Float diameter 145 mm
Mounting orientation horizontal
Mounting from the side
Connecting cable 
red-brown silicone cable, 4G0,75

Connecting cable length

 
2 metres from screw-in nipple, other cable lengths
on request. When ordering, please always state
the desired cable length and cable type.
Screw-in nipple material stainless steel 316 Ti
Screw-in nipple dimension G½
Temperature
application range 
0° C to + 60° C
Max. immersion depth
of the float		 
max. 30 metres head of water at + 20° C
Documents for application
in explosive atmospheres 		EC type examination certificate [PDF]
EC Declaration of Conformity [PDF]
Installation, operating and maintenance instructions [to the language selection] 
The connecting cable is routed through a protective bellows made of stainless steel 316 Ti
to which a G½ screw-in nipple is fastened.

This unit has to be connected to a certified intrinsically safe circuit.  
We can supply appropriate protection relays on request.

Recommended application via 
Jola protection relay KR 5/Ex  I (M1) / II (1) GD [EEx ia] I / IIC 


Options for safety applications:

- diodes (= variant 1) or resistors (= variant 2) on request 

Optional extras: stainless steel stirrup to limit the movement of the float
 
This floating switch is designed for mounting from the side.

To ensure a correct switching the G½ screw-in nipple must be screwed in a horizontal
G½ sleeve.

This unit is not suitable for use in turbulent liquids (e.g. in stirrer tanks).

 
Measure drawing
Function sketch
Basic circuit
Top