MOLLET Swivelling Lever With Limit Switch User Manual

: June 8, 2024
: MOLLET

MOLOS SWING
Swivelling lever with limit switch
SNS
Operating instructions

► Read and follow these safety instructions first and take notice of the operating instructions.

Safety instructions Dust

For the application of limit switches in explosive hazardous areas

The installation, initial operation and maintenance may be done by a qualified expert with electrical know-how only and has to be supervised resp. controlled by an “authorized person” for explosion protection.
Comply with the local and statutory rules and regulations and/or the VDE 0100.
To keep the intrinsically reliability a certified barrier or a certified isolation amplifier with an intrinsically safe circuit according to the present category and after the specify of the switch manufacturer has to be connected in series for power limitation.
The swivelling lever has to be constantly conductible connected to the electrically conductive, earthed tubing.
– If the tubing is not electrically conductive the swivelling lever has to be earthed.
The pipeline must not be made of aluminum, titanium or zirconium.
Take notice of the requirements of DIN EN 60079-14, DIN EN 60079-17 and DIN EN 1127-1, especially regarding the dust deposits and temperatures and follow the pertinent rules and regulations.
The swivelling lever with limit switches can be used in areas classified as zone 1 and zone 21 or lower.
Temperatures

| SNS
---|---
Ambient temperature| -20 °C … +60 °C
Temperature class / maximun surface temperature| T6 / T 135 °C

Specification

Intended use

The swivelling lever with limit switch is for signalizing that a hose coupling has been coupled at silos or tanks or coupling stations.

Function

While coupling the counter coupling or hose coupling the lever is swivelling beside and the limit switch will be actuate.

Technical data

Manufacturer| MOLLET
Füllstandtechnik GmbH
---|---
Address| Industriepark RIO 103
74706 Osterburken
Name| Swivelling lever with limit switch
Type| SNS … B6
Weight| 3 kg
Nominal size| 065 for tube Ø 76.1
080 for tube Ø 88.9
100 for tube Ø 108 … 114.3
125 for tube Ø 133 … 139.7
150 for tube Ø 159 … 168.3
Cabel length| 2 2 meter cabel
5 5 meter cabel
0 10 meter cabel

Materials

Fixing plate
Swivelling lever| Steel, galvanized
Steel, galvanized
---|---

Dimensions

Installation

Preparation

Read and follow the safety instructions and the operating instructions, before handling with the device !

Mechanical conections

Place the pipe shackle over the tube and into the borings of the fixing plate.
Set the nuts and washers at the pipe shackle.
Screw them tightly on.
Align the swivelling lever as shown in the drawing below with a distance of about 10 up to maximum 25 mm to the coupling.
Check whether the lever can be swivelled out without obstruction.
In case of slanting or horizontal pipe always fasten to the upper side. The lever must fall into the final position shown in the drawing by virtue of its own weight.
Screw the both nuts so that the two threaded ends are about the same length.
Now put the cap nuts on and screw them tightly. 210

Electrical connection

Matreial| Switch
PBTP (Polybutylenterephthalat)
8 V DC
---|---
Switching voltage| Normally Open (NO)
Switching function| -20 °C … +60 °C
Capacity of the contact| IP68/IP66 acc. DIN EN 60529
Ambient temperature| B6 II 2G Ex ia IIB T6…T1 Gb and
II 2D Ex ia IIIB T135 °C Db
Type of protection| IP67/IP66 acc. DIN EN 60529
Ex type of protection| II 2D Ex ia IIIB T135 °C Db
Connection diagram|

Lay a loop at the swivelling lever to compensate the swivelling movement

Utilization

Commissioning

Put the swivelling lever into operation only, if the installation and the electrical connection have been done correctly.

Normal operation

Use the swivelling lever in its intended application only.
Comply with the specifications on the data plate.

Inexpert handling

Ignoring the safety instructions and the operating instructions.
Not intended use.
Mounting of spare parts which are no original parts.
Violation against applicable law and standards.

Maintenance and Servicing

Maintenance

Inspect the swivelling lever about cleanness and smooth engagement in regular intervals. Define the intervals of the control depending on the ambient conditions and the frequency of use.

Servicing

Carry out repairs only when the swivelling lever is disconnected from the electrical supply before.
Damaged parts have immediately replaced with similar.
Until the complete restoration of the proper function the swivelling lever must not be used any more.
Use original spare parts only.

Storage

Store the swivelling lever dry and dust-free.

Disposal

The swivelling lever can be recycled.
The disposal applies to the valid environmental guidelines according to the location of the carrier and the local manufacturing conditions.

SNS-BAG-04 08/22 © by MOLLET
Operating instruction MOLLET D-74706 Osterburken
Tel. +49 6291 6440-0
Fax +49 6291 9846