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Summary of Contents for FISCHER ME50 R Series
- Page 1 II 3G Ex nA IIC T4 Gc -20 °C ≤ Ta ≤ +60°C Operation manual ME50 ... R Programmable pressure transducer / pressure switch for explosive areas Gas explosion protection zone 2, gases and vapours...
- Page 2 Great care was taken when compiling the texts and illustrations; Nevertheless, errors cannot be ruled out. The company FISCHER Mess- und Regeltechnik GmbH will not accept any legal responsibility or liability for this.
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Page 3: Table Of Contents
FISCHER Mess- und Regeltechnik GmbH Table of Contents Table of Contents 1 Safety guidelines ......................4 1.1 General........................... 1.2 Personnel Qualification......................1.3 Risks due to Non-Observance of Safety Instructions ............. 1.4 Safety Instructions for the Operating Company and the Operator ......... -
Page 4: Safety Guidelines
1 | Safety guidelines FISCHER Mess- und Regeltechnik GmbH 1 Safety guidelines 1.1 General This operating manual contains basic instructions for the installation, operation and maintenance of the device that must be followed without fail. It must be read by the installer, the operator and the responsible specialist personnel be- fore installing and commissioning the device. -
Page 5: Unauthorised Modification
FISCHER Mess- und Regeltechnik GmbH Safety guidelines | 1 • evident damage to the instrument • failure of the electrical circuits • longer storage outside the approved temperature range. • considerable strain due to transport Repairs may be carried out by the manufacturer only. -
Page 6: Pictogram Explanation
1 | Safety guidelines FISCHER Mess- und Regeltechnik GmbH 1.8 Pictogram explanation DANGER Type and source of danger This indicates a direct dangerous situation that could lead to death or serious injury (highest danger level). 1. Avoid danger by observing the valid safety regulations. -
Page 7: Product And Functional Description
FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 2 Product and functional description 2.1 Delivery scope • Programmable pressure transducer / switch ME50 • User Manual 2.2 Performance characteristics Important features • Digital measured value display • Highly precise •... -
Page 8: Function Diagram
2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH 2.4 Function diagram Aout µC þ û ÿ 1.234 Fig. 1: Function diagram Sensor Signal converter Switching outputs Analogue output Measured value display Keyboard Microcontroller Pressure equalisation 2.5 Design and mode of operation Depending on the measuring range, the ME50 is produced with a ceramic or a piezo-resistive measuring cell. -
Page 9: Product Overview
FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 2.6 Product overview Casing lid Pressure equalisation element M12 plug TC flange TC clamp Delivery scope Accessories TC seal Process adapter G½ with TC flange Fig. 2: Product overview 2.7 Type plate This type plate serves as an example of the information that is stated. -
Page 10: Installation And Assembly
3 | Installation and assembly FISCHER Mess- und Regeltechnik GmbH 3 Installation and assembly 3.1 Generalities The unit is designed for vertical installation (process connection facing down) and compared. No other installation positions are planned. 3.2 Process connection • By authorized and qualified specialized personnel only. -
Page 11: Ground Connection
FISCHER Mess- und Regeltechnik GmbH Installation and assembly | 3 The nominal supply voltage and the permissible range can be found in the tech- nical data. The admissible load / resistance is stated in the technical data. 3.3.1 Ground connection The outer ground connection must always be connected to the protective poten- tial equalisation or a similar local potential equalisation. - Page 12 3 | Installation and assembly FISCHER Mess- und Regeltechnik GmbH Potential-free contacts Signal name Cable colour Output +Sig white Operating voltage brown Switching output 1 K1 (a) green Switching output 1 K1 (b) yellow Switching output 2 K2 (b) grey...
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Page 13: Commissioning
FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 4 Commissioning 4.1 General All electrical supply, operating and measuring lines, and the pressure connec- tions must have been correctly installed before commissioning. All supply lines are arranged so that there are no mechanical forces acting on the device. -
Page 14: Parameters
4 | Commissioning FISCHER Mess- und Regeltechnik GmbH 4.3 Parameters After it has been switched on, the unit carries out a display test and shows the implemented firmware version for approx. 2s. Then the pressure transmitter switches to the operating mode. -
Page 15: Parameter List
FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 4.4 Parameter list The following describes all parameters in the shown list. Please note that some Outlet parameters are not available depending on the unit version. For instance, the parameters for the switch points are hidden, if the unit does not have any switch points. - Page 16 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH SP1A SP1E (i) Parameter activation and deactivation point These parameters are used to define the activation and deactivation point. Both parameters can be set individually over the entire basic measuring range. sp1E sp1a •...
- Page 17 FISCHER Mess- und Regeltechnik GmbH Commissioning | 4 Parameter zero-point window In many cases, unsteady readings are not a problem during normal operating mode, but this is not true for the idle state, i.e. if a measured value of zero is ex- pected.
- Page 18 4 | Commissioning FISCHER Mess- und Regeltechnik GmbH tast Parameter key lock The key lock can be activated with this parameter. If no button is pressed within the given time, the keyboard is locked. Unlock the keyboard by interrupting the power supply.
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Page 19: Technical Data
FISCHER Mess- und Regeltechnik GmbH Technical Data | 5 5 Technical Data 5.1 Generalities Reference conditions (acc. to IEC 61298-1) Temperature error +15 … +25 °C Relative humidity 45 … 75 % Air pressure 86 … 106 kPa 860 … 1060 mbar... -
Page 20: Output Parameters
5 | Technical Data FISCHER Mess- und Regeltechnik GmbH 5.3 Output parameters The ME50 versions differ in the number and type of outputs available (see order code): Analog output 0/4 … 20 mA Load ≤ ((U – 10 V) * 50 Ω) + 300 Ω... -
Page 21: Application Conditions
FISCHER Mess- und Regeltechnik GmbH Technical Data | 5 5.6 Application conditions Ambient without display -20 °C … +60 °C temperature range with display -20 °C … +60 °C Storage temperature range -10 °C … +70 °C Medium temperature range (in opera- -10 °C …... -
Page 22: Parameters
5 | Technical Data FISCHER Mess- und Regeltechnik GmbH 5.7.2 Process connection The process connection uses a Tri-Clamp connection acc. to DIN 32676. A G½ inch process adapter with a TC flange can be delivered fro this connection. TC seal... -
Page 23: Order Codes
FISCHER Mess- und Regeltechnik GmbH Order Codes | 6 6 Order Codes Code no. 10 11 12 17 18 19 20 21 Type [1,2] Measuring range Measuring cell -20 … +20 mbar Ceramic measuring cell -40 … +40 mbar -100 … +100 mbar 0 …... -
Page 24: Accessories
6 | Order Codes FISCHER Mess- und Regeltechnik GmbH Output signal 0 … 20 mA 4 … 20 mA Switch output Electrical connection without switch output 2 potential-free semiconductor switches AC/DC 2 semiconductor switches PNP-switching DC 2 semiconductor switches NPN-switching DC... -
Page 25: Attachments
FISCHER Mess- und Regeltechnik GmbH Attachments | 7 7 Attachments 7.1 EU Declaration of Conformity Fig. 14: CE_EN_ME50_R BA_EN_ME50_ATEX 25/28... - Page 26 FISCHER Mess- und Regeltechnik GmbH Notes 26/28 BA_EN_ME50_ATEX...
- Page 27 FISCHER Mess- und Regeltechnik GmbH Notes BA_EN_ME50_ATEX 27/28...
- Page 28 Mess- und Regeltechnik GmbH Bielefelder Str. 37a D-32107 Bad Salzuflen Tel. +49 5222 974-0 Fax +49 5222 7170 www.fischermesstechnik.de info@fischermesstechnik.de Technische Änderungen vorbehalten. Subject to technical changes. Sous réserve de modifications techniques.
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