Introduction; General; Safety Instructions - Mettler Toledo InPro 7200 Serie Instructions D'utilisation

InPro 7200 Series
1

Introduction

1.1

General

The inductive Sensors InPro 7200 Series are intended to be used
with Transmitter Cond Ind 7100 e, CondI 7100/2H, CondI
7100/2(X)H, or M 700 (module Cond Ind 7700) to measure
conductivity and concentration of liquids. Sensors are available
in a number of materials suitable for a variety of conditions.
The sensors measure an induced current in a loop of solution.
Two toroidally wound coils are encapsulated in close proximity
within the sensor which is immersed in the solution. An ac sig-
nal, applied to one toroidal coil, induces a current in the second
coil which is directly proportional to the conductance of the solu-
tion.
1.2

Safety Instructions

Dangers
An electrical shock hazard may be present under sensor fault
conditions when sensor is located in process fluids at electrical
potentials above 30 V rms or 60 V dc. In order to prevent elec-
trical shock hazard, remove sensor from process or de-ener-
gize power to process prior to performing maintenance on the
Transmitter Cond Ind 7100 e, CondI 7100/2H, CondI
7100/2(X)H, or M 700.
Certain units described in this instruction manual contain
electrical shock hazard potential. Maintenance should be per-
formed by qualified personnel only. During maintenance,
remove power to avoid severe injury or death.
When performing maintenance, wear appropriate, protective
clothing including safety goggles. Escaping chemicals under
pressure can cause severe injury including blindness.
Warnings
Use care when connecting and disconnecting high pressure ser-
vice connections. Use proper gloves and follow the recom-
mended procedures to avoid severe injury to personnel or
damage to equipment.
When processing hazardous liquids, follow the recommen-
ded procedures. Failure to do so could result in injury to per-
sonnel and damage to equipment.
Use only METTLER TOLEDO recommended replacement parts.
Substitution parts could result in damage to equipment, dama-
ge to the process, and/or injury to personnel.
Be careful to avoid touching exposed circuits and compo-
nents. Potential shock hazards are present.
© 08/04 Mettler-Toledo GmbH, CH-8606 Greifensee
Printed in Switzerland
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InPro 7200 Series
52 001 408