WIKA MHC-1 User manual
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DE
FR
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Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Drucksensor
Für die Mobilhydraulik Typ MHC-1
Pressure sensor
For mobile hydraulic applications model MHC-1
Pressure sensor for mobile hydraulic applications model MHC-1
Sensor de presión
Para hidráulica móvil modelo MHC-1
Capteur de pression
Pour des applications hydrauliques mobiles type MHC-1
2WIKA operating instructions pressure sensor, model MHC-1
14035467.03 09/2018 EN/DE/FR/ES
EN
DE
FR
ES
Operating instructions model MHC-1 Page 3 - 22
Betriebsanleitung Typ MHC-1 Seite 23 - 42
Mode d’emploi type MHC-1 Page 43 - 62
Manual de instrucciones modelo MHC-1 Página 63 - 83
© 2012 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA®is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!
Lire le mode d‘emploi avant de commencer toute opération !
A conserver pour une utilisation ultérieure !
¡Leer el manual de instrucciones antes de comenzar cualquier trabajo!
¡Guardar el manual para una eventual consulta posterior!
3WIKA operating instructions pressure sensor, model MHC-1
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1. General information 4
2. Safety 6
3. Specications 9
4. Design and function 14
5. Transport, packaging and storage 14
6. Commissioning, operation 15
7. Maintenance and cleaning 19
8. Faults 19
9. Dismounting, return and disposal 21
Contents
Contents
Declarations of conformity can be found online at www.wika.com.
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1. General information
1. General information
■
The pressure sensor described in the operating instructions has been designed and manufactured
using state-of-the-art technology. All components are subject to stringent quality and environmental
criteria during production. Our management systems are certied to ISO 9001 and ISO 14001.
■
These operating instructions contain important information on handling the instrument.Working
safely requires that all safety instructions and work instructions are observed.
■
Observe the relevant local accident prevention regulations and general safety regulations for the instru-
ment's range of use.
■
The operating instructions are part of the product and must be kept in the immediate vicinity of the
instrument and readily accessible to skilled personnel at any time.
■
Skilled personnel must have carefully read and understood the operating instructions prior to
beginning any work.
■
The manufacturer's liability is void in the case of any damage caused by using the product contrary
to its intended use, non-compliance with these operating instructions, assignment of insuciently
qualied skilled personnel or unauthorised modications to the instrument.
■
The general terms and conditions contained in the sales documentation shall apply.
■
Subject to technical modications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: PE 81.49
- Application consultant: Tel.: +49 9372/132-0
Fax: +49 9372/132-406
E-mail: info@wika.de
5WIKA operating instructions pressure sensor, model MHC-1
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1. General information
Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or death, if not
avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or damage to
the equipment or the environment, if not avoided.
Information
... points out useful tips, recommendations and information for ecient and trouble-free
operation.
CAUTION!
... indicates a potentially dangerous situation that can result in burns, caused by hot
surfaces or liquids, if not avoided.
Abbreviations
CAN Controller area network
U+Positive power supply terminal
U-Negative power supply terminal
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2. Safety
2. Safety
WARNING!
Before installation, commissioning and operation, ensure that the appropriate pressure
sensor has been selected in terms of measuring range, design and specic measuring
conditions.
Non-observance can result in serious injury and/or damage to the equipment.
WARNING!
■
Open the connections only after the system has been depressurised.
■
Prior to opening the pressure sensor, disconnect it from the power supply.
■
Always operate the pressure sensor within the overpressure limit.
■
Observe the working conditions in accordance with chapter 3 "Specications".
■
For the application of the pressure sensor in connection with aggressive/corrosive
media and for avoiding mechanical damages, see chapter 3 "Specications"
Further important safety instructions can be found in the individual chapters of these
operating instructions.
2.1 Intended use
The pressure sensor is used to convert pressure into an electrical signal.
The pressure sensor has been designed and built solely for the intended use described here and may
only be used accordingly.
The technical specications contained in these operating instructions must be observed. Improper
handling or operation of the pressure sensor outside of its technical specications requires the
instrument to be taken out of service immediately and inspected by an authorised WIKA service
engineer.
The manufacturer shall not be liable for claims of any type based on operation contrary to the intended
use.
7WIKA operating instructions pressure sensor, model MHC-1
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2. Safety
2.2 Personnel qualication
WARNING!
Risk of injury should qualication be insucient!
Improper handling can result in considerable injury and damage to equipment.
The activities described in these operating instructions may only be carried out by skilled
personnel who have the qualications described below.
Skilled personnel
Skilled personnel are understood to be personnel who, based on their technical training, knowledge
of measurement and control technology and on their experience and knowledge of country-specic
regulations, current standards and directives, are capable of carrying out the work described and
independently recognising potential hazards.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
2.3 Special hazards
WARNING!
For hazardous media such as oxygen, acetylene, ammable or toxic gases or liquids,
and refrigeration plants, compressors, etc., in addition to all standard regulations, the
appropriate existing codes or regulations must also be followed.
WARNING!
Residual media in dismounted pressure sensors can result in a risk to persons, the
environment and equipment.
Take sucient precautionary measures.
WARNING!
Upon contact with pressure sensor, please note that the surfaces of the device compo-
nents can become hot in operation.
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2. Safety
2.4 Labelling / safety marks
Product label
If the serial number becomes illegible due to mechanical damage or overpainting, traceability will only
be possible by means of the serial number stored in the instrument.
Explanation of symbols
Before mounting and commissioning the instrument, ensure you read the operating
instructions!
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
P# Product no.
S# Serial no.
Accuracy
Pin assignment
Measuring range
Power supply
Output signal
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3. Specications
3. Specications
3.1 Measuring ranges
Relative pressure
bar Measuring range 0 ... 60 0 ... 100 0 ... 160 0 ... 250 0 ... 400 0 ... 600 1,000
Overpressure limit 120 200 320 500 800 1,200 1,500
Burst pressure 240 400 640 1,000 1,600 2,400 3,000
psi Measuring range 0 ... 1,000 0 ... 1,500 0 ... 2,000 0 ... 3,000 0 ... 5,000 0 ... 10,000
Overpressure limit 1,740 2,900 4,000 6,000 10,000 17,400
Burst pressure 3,480 5,800 9,280 14,500 23,200 34,800
Vacuum tightness
Yes
3.2 Output signals
Signal type Signal
CANopenDevice prole DS-404
J1939 SAE J1939
3.3 Voltage supply
Power supply
DC 10 ... 30 V
Total current consumption
< 40 mA
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3. Specications
3.4 Reference conditions (per IEC 61298-1)
Temperature
15 ... 25 °C
Atmospheric pressure
860 ... 1,060 mbar
Humidity
45 ... 75 % relative
Power supply
DC 24 V
Nominal position
Calibrated in vertical mounting position with pressure connection facing downwards.
3.5 Accuracy data
Accuracy at reference conditions
Including non-linearity, hysteresis, zero oset and end value deviation (corresponds to measured error
per IEC 61298-2).
Accuracy
Standard ≤ ±1 % of span
Option ≤ ±0.5 % of span
Measuring rate
maximum 1,000 Hz
Non-linearity (per IEC 61298-2)
≤ ±0.2 % of span BFSL
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