WIKA MG-1 User manual
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Pressure sensor model MG-1
Pressure sensor model MG-1
Drucksensor Typ MG-1
Capteur de pression type MG-1
Sensor de presion modelo MG-1
2WIKA operating instructions, model MG-1
EN
DE
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FR
ES
© 2011 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA®is a registered trademark in various countries.
WIKA®ist eine geschützte Marke in verschiedenen Ländern.
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!
Operating instructions model MG-1 Page 3 - 22
Betriebsanleitung Typ MG-1 Seite 23 - 42
Mode d'emploi type MG-1 Page 43 - 62
Manual de instrucciones modelo MG-1 Página 63 - 83
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Contents
Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
2. Safety 6
3. Specifications 8
4. Design and function 14
5. Transport, packaging and storage 14
6. Commissioning, operation 15
7. Maintenance and cleaning 17
8. Faults 17
9. Dismounting, return and disposal 18
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1. General information
1. General information
■
The pressure sensor described in the operating instructions has been designed and manufactured by 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 pressure sensor.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 pressure sensor's
range of use.
■
The operating instructions are part of the product and must be kept in the immediate vicinity of the pressure sensor
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 pressure sensor.
■
The general terms and conditions contained in the sales documentation shall apply.
■
Subject to technical modications.
Further information:
- Internet address: www.wika.com
- Relevant data sheet: PE 81.44
- Application consultant: Tel.: +49 9372 132-0
Fax: +49 9372 132-406
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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, which can result in light injuries or damage to 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
2-wire Two of the connection lines are used for the power supply.
The measurement signal also provides the supply current.
3-wire Two of the connection lines are used for the power supply.
One connection line is used for the measurement signal.
UBPositive power terminal
0V Negative power terminal
S+Positive measurement 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.
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.
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.
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2. Safety
2.3 Special hazards
WARNING!
For hazardous media such as oxygen, acetylene, ammable or toxic gases or liquids, and refrigera-
tion plants, compressors, etc., in addition to all standard regulations, the appropriate existing codes or
regulations must also be followed.
WARNING
!
Residual media in dismounted instruments can result in a risk to persons, the environment and equipment.
Take sucient precautionary measures.
2.4 Labelling / safety marks
Product label
If the serial number becomes illegible (e.g. due to mechanical damage or overpainting), traceability will no longer be
possible.
Explanation of symbols
Voltage DC
Output signal Pin assignment
Power supply
P# Product No.
S# Serial No.
Model
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3. Specications
3. Specifications
3.1 Measuring ranges
Gauge pressure
bar Measuring range 0 ... 6 0 ... 10 0 ... 16 0 ... 200 0 ... 300 0 ... 400
Overload safety 20 20 32 500 800 800
Burst pressure 25 25 160 1,200 1,700 1,700
psi Measuring range 0 ... 100 0 ... 150 0 ... 200 0 ... 3,000 0 ... 4,000 0 ... 5,000
Overload safety 290 290 460 7,200 11,000 11,000
Burst pressure 1,450 1,450 2,300 17,000 24,000 24,000
Vacuum tightness:Yes
3.2 Output signals
Signal type Signal
Current (2-wire) 4 ... 20 mA
Voltage (3-wire) DC 0 ... 10 V
DC 0 ... 5 V
DC 1 ... 5 V
Ratiometric (3-wire) DC 0.5 ... 4.5 V
Depending on the signal the following loads apply:
Signal Load in Ω
4 ... 20 mA ≤ (power supply - 8 V) / 0.02 A
DC 0 ... 10 V > max. signal / 1 mA
DC 0 ... 5 V > max. signal / 1 mA
DC 1 ... 5 V > max. signal / 1 mA
DC 0.5 ... 4.5 V ratiometric > max. signal / 1 mA
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3. Specications
3.3 Voltage supply
The permissible power supply depends on the corresponding output signal.
Output signal Power supply
4 ... 20 mA DC 8 ... 30 V
DC 0 ... 10 V DC 14 ... 30 V
DC 0 ... 5 V DC 8 ... 30 V
DC 1 ... 5 V DC 8 ... 30 V
DC 0.5 ... 4.5 V ratiometric DC 5 ± 0.5 V
Total current consumption: maximum 10 mA (except for 2-wire signals)
3.4 Accuracy
Accuracy
Accuracy at reference conditions ≤ ±2 % of span
Including non-linearity, hysteresis, zero oset and end value deviation (corresponds to
measured error per IEC 61298-2). Calibrated in vertical mounting position with process
connection facing downwards.
Non-linearity ≤ ±0.5 % of span BFSL (per IEC 61298-8)
Temperature error ≤ ±2.0 % of span
Long-term drift (per IEC 61298-2) ≤ 0.3 % of span/year
Settling time ≤ 2 ms
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3. Specications
3.5 Operating conditions
Operating conditions
Ingress protection (per IEC 60529) IP67
The stated ingress protection only applies when plugged in using a mating connector that
has the appropriate ingress protection.
Vibration resistance 20 g (20 ... 2,000 Hz, 2 h) per IEC 60068-2-6
Shock resistance 40 g (6 ms) per IEC 60068-2-27
Permissible temperature ranges
Rated temperature range -20 ... +70 °C [-4 ... +158 °F]
Ambient -20 ... +70 °C [-4 ... +158 °F]
Medium -20 ... +70 °C [-4 ... +158 °F]
Storage -25 ... +80 °C [-13 ... +176 °F]
3.6 Reference conditions (per IEC 61298-1)
Reference conditions (per IEC 61298-1)
Temperature 15 ... 25 °C
Atmospheric pressure 860 … 1,060 mbar (665 ... 800 mmHg)
Air humidity 45 ... 75 % relative, non-condensing
Power supply DC 24 V
DC 5 V with ratiometric output
Mounting position as required
3.7 Process connections
Standard Thread size
EN 837 G ⅛ B
G ¼ B
DIN EN ISO 1179-2 (formerly DIN 3852-E) G ¼ A (Sealing ring from FKM)
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