KROHNE H250 M40 Series User Manual

Equipment category II 2G and II 2D, EPL Gb and Db
in protection type intrinsic safety "i"
H250 M40
H250 M40H250 M40
H250 M40
Supplementary instructions
Supplementary instructionsSupplementary instructions
Supplementary instructions
© KROHNE 02/2015 - 4001481102 - MA H250/M40-Exi--II2GD-AD R02 en

KROHNE H250 M40 Series Specifications

General

Type	Variable area flowmeter
Materials	Stainless steel, PTFE
Output	4-20 mA, HART, PROFIBUS PA, FOUNDATION Fieldbus
Connection	Flange, Thread
Display	Optional LCD

Summary

Safety Instructions

EC Conformity

Approval According to the IECEx Scheme

Security Information

Assembly, installation, start-up, and maintenance must be by trained personnel.

Device Description

Flammable Products

Defines atmospheric and operating conditions for explosive atmospheres with flammable products.

Device Category

Specifies device categories and EPLs for use in hazardous zones 1 and 21.

Protection Types

Details intrinsic safety protection types ('i') for gas and dust explosion protection.

Ambient Temperature and Temperature Classes

Explains how product and ambient temperatures determine temperature class for variants.

Surface Temperature for Equipment Category II 2D

Notes on maximum surface temperature for dust hazardous areas, valid without dust coating.

Electrical Data

Installation

Electrical Connections

Operation

Electrostatic Charge Precautions