Limit Switch Amm; Introduction; Mounting The Limit Switch In An Existing Equipment; Kit Contents - Techfluid SC250H Instruction Manual

The numbering of the terminals is given on the printed circuit board.

LIMIT SWITCH AMM

10

INTRODUCTION

The AMM limit switch can be used to generate an alarm or an operation when the flow rate or
the instrument is measuring reaches a preset value on the scale plate.
It consists of a micro-switch driven by a cam mounted on the indicating needle.
An instrument can be equipped with one or two micro-switches, depending on the number of
points to be detected.
11

MOUNTING THE LIMIT SWITCH IN AN EXISTING EQUIPMENT

In order to add an AMM limit switch to an existing device, follow the steps shown below.
11.1

Kit contents

The kit contains the following elements:
Quantity
1
2
1
1
2
2
2
In the kits, the O-rings (5) and the blanking plugs (7) are not provided as loose parts. They are
incorporated in the cable glands (6).
11.2

Preparing the kit

Remove the cover, unscrewing the four screws "Allen" M5 and plastic washers, in the back
side of the indicator housing, using a 4 mm Allen key.
AMM limit switch circuit
Self tapping screw DIN7982 B-2,2 x 9,5 Nº2 A2
Screw DIN7985 M3 x 6 A2
External tooth lock M3 A4
O-ring Ø 16 x 18,5 x 1,25 mm NBR-70
Cable gland IP68
Cable gland blanking plug
AMM kit
Material
17
Position
1
2
3
4
5
6
7