KROHNE H54-M4 User Manual

www.krohne.com

7022812100

C

KROHNE 03/2005

GM

Operating Instructions

Installation and

H54 / M4

Variable Area Flowmeter

Vortex flowmeters

Flow controllers

Electromagnetic flowmeters

Ultrasonic flowmeters

Mass flowmeters

Level measuring instruments

For explosion protected devices please refer to Supplementary

Communications technology

Installation an Operating Instructions:

Engineering systems & solutions

GA24/... Cat. II2GD

Switches, counters, displays and recorders

Cat. II3GD without electr. built-in parts Id. No. 702271##00

Heat metering

Pressure and temperature

Variable area flowmeters

Product liability and warranty

The variable area flowmeter is suitable for measuring the volume flow of liquids, gases and vapor.

Special regulations apply for use in explosion-hazardous areas. Responsibility for the suitability and
usage to the intended purpose of these flowmeters rests solely with the operator.

Improper installation or improper operation of the flowmeters may lead to the loss of warranty. In addition,
the "General conditions of sale" which forms the basis of the purchase contract are applicable.

The calculation of the pressurized parts is effected with allowance for corrosion, erosion through abrasion
or cavitation.

If the flowmeter needs to be returned to KROHNE Messtechnik, please note the information at the end of
these installation and operating instructions.

Scope of delivery

The scope of delivery of the variable area flowmeter in the version respectively ordered includes:

- Installation and operating instructions Ident. No. 702281##00

For explosion protected devices please refer to Supplem. Installation an Operating Instructions:

H54/... Cat. II2GD Cat. II3GD without electr. built-in parts Id. No. 702271##00

- Supply without installation accessories (screw bolts, flange seal and cabling)

Special certificates (supplied to order only)

- Record on setting in works

- Test certificate to EN 10204:

- Pressure test, paint penetration test, irradiation test, leak test,
ultrasonic test, helium leakage test,

- Cleaning to works regulations.

2 H54 Installation and operating instructions

Table of Contents

Product liability and warranty ................................................................................................................... 2

1 General................................................................................................................................................ 4

1.1 Type code ........................................................................................................................................ 4

1.2 Marking ............................................................................................................................................ 4

1.3 Key for Pressure Equipment Directive ............................................................................................5

1.4 Functional principle.......................................................................................................................... 5

2 Installation and Start-up.................................................................................................................... 6

2.1 Protection during shipment.............................................................................................................. 6

2.2 Prerequisite for the installation ........................................................................................................ 6

2.3 Preparation of the pipeline............................................................................................................... 6

2.4 Installation in the pipeline ................................................................................................................ 6

2.5 Fastening torque.............................................................................................................................. 6

2.6 Magnetic filters ................................................................................................................................ 7

2.7 Observance of the IP degree (NEMA Type) of protection............................................................... 7

2.8 Start-up............................................................................................................................................ 7

2.9 Measurement of liquids ................................................................................................................... 7

2.10 Measurement of gases.................................................................................................................... 7

3 Flow tables ......................................................................................................................................... 8

4 Materials ............................................................................................................................................. 9

5 Technical Data.................................................................................................................................. 10

6 Medium Temperatures..................................................................................................................... 10

7 Dimensions and weights................................................................................................................. 11

8 Limit switches .................................................................................................................................. 12

8.1 Electrical connection...................................................................................................................... 12

8.2 Setting............................................................................................................................................ 12

8.3 Technical data of limit switches ..................................................................................................... 12

9 Electrical signal output ESK II........................................................................................................ 13

10 Electrical signal output ESK3-PA................................................................................................... 14

11 Maintenance ..................................................................................................................................... 15

Information on returning instruments.................................................................................................... 15

Form for returning the instrument.......................................................................................................... 16

3 H54 Installation and operating instructions

1 General

1.1 Type code

The type code consists of the following elements: 1)

H 5 4 / / / /

1 2 3 4 5 6

1 Series measuring unit H54

2 Materials
RR : stainless Steel
C : stainless steel with PTFE liner

3 Heating jacket design
B : with heating jacket

4 Display part series
M4 : mechanical indicator
M10 : electronic transmitter with LC display M10

5 Signal output (M4 display)
ESK : electronic transmitter

6 Limit switch
K1 : one limit switch
K2 : two limit switches

1) Positions which are not used in the type code are not required.

1.2 Marking

The type marking of the complete instrument is carried out at the display part by means of the rating plates
shown here (also refer to the type code).

Example:
MD: Manufacturing date
PS: Max. permissible operating
pressure at max. permissible operating temperature TS
PT max: Maximum pressure tested
TS: Max. operating temperature
PED: Directive for Pressure Equipment
Tag No : Measuring point tag
0044: Identification number of the supervising office for
EC Directive for Pressure Equipment 97/23/EC

SN: Serial number
SO: Sales order / item
KO: KROHNE order
V251…: Product configurator code
AC: Article code

4 H54 Installation and operating instructions

1.3 Key for Pressure Equipment Directive

PED / / /

1 2 3 4 5

1 Pressure Equipment Directive

2 Fluid

G Gases, liquefied gases, gases dissolved under pressure, vapors and those liquids

whose vapor pressure lies more than 0.5 bars over the normal atmospheric pressure
(1013 mbars) at the maximum permissible temperature

L Liquids whose vapor pressure lies a maximum of 0.5 bars above the atmospheric

pressure at the maximum permissible temperature

3 Fluid group

1 Group 1: Explosion-hazardous, highly flammable, readily flammable, flammable

(when the maximum permissible temperature lies above the flash point),
highly toxic, toxic, fire stimulating

2 Group 2: All the fluids not specified in Group 1

4 Category

3.3 In accordance with Article 3.3 of Directive 97/23/EC
I Category I to 97/23/EC
II Category II to 97/23/EC

III Category III to 97/23/EC

5 Conformity evaluation process
SEP Solid engineering practice

A Module A internal process inspection
A1 Module A1 internal process inspection with supervision of the acceptance
H Module H Comprehensive quality assurance

The PED key marking is contained on the rating plate of the instrument.

1.4 Functional principle

The flowmeter operates in accordance with the float measuring
principle.
A metal cone is installed in the measuring unit H54, in which
a suitably formed float can move freely up and down.
The flowmeter is inserted into a vertical pipeline and the
medium flows through it from bottom to top.
The guided float adjusts itself so that the buoyancy force
A acting on it, the wave resistance W and its weight G are
in equilibrium (G = A + W).
An annular gap which depends on the flow rate results.
The height of the float in the measuring unit, which depends
on the flow, is transmitted by a magnetic coupling and
displayed on a scale. Strong magnetic fields can lead to
deviations in the measured value.
The installation of several instruments in immediate vicinity to
each other does not cause notable influences.

5 H54 Installation and operating instructions