FISCHER ER76 Operating Manual

Control relay for level probes dnv-gl version

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Operating manual

ER76

Control relay for level probes

DNV-GL version

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Summary of Contents for FISCHER ER76

Page 1 Operating manual ER76 Control relay for level probes DNV-GL version...
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.
Page 3: Table Of Contents
FISCHER Mess- und Regeltechnik GmbH Table of contents Table of contents 1 Safety instructions......................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 Instructions
1 | Safety instructions FISCHER Mess- und Regeltechnik GmbH 1 Safety instructions 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: Safe Working Practices For Maintenance And Installation Work
FISCHER Mess- und Regeltechnik GmbH Safety instructions | 1 1.7 Safe working practices for maintenance and installation work The safety instructions given in this operating manual, any nationally applicable regulations on accident prevention and any of the operating company's internal work, operating and safety guidelines must be observed.
Page 6: Product And Functional Description
Power max. 5 VA Input 0 ... 200 kOhm Function interval Load data 250 VA Temp. range -10 ..+70 °C Prod.-Nr. 2106821.00.002 Serial number FISCHER Mess- und Regeltechnik GmbH Bielefelder Str. 37a D32107-Bad Salzuflen Fig. 2: Type plate 6/20 BA_EN_ER76...
Page 7: Intended Use
FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 2.3 Intended use Control relay ER76 can be used in connection with type NK06 level probes for the automatically controlling and regulating conductive liquid filling levels in tank systems.
Page 8: Design And Mode Of Operation
FISCHER Mess- und Regeltechnik GmbH 2.5 Design and mode of operation ER76 is controlled by the medium using a type NK06 probe. Input sensitivity is factory-adjusted to 70 kΩ. In order for the relay to switch properly, the medium- conductivity must not fall below a value of 14 µS / cm.
Page 9: Assembly
• Disconnect the system from the mains, before electrically connecting the device. • Install the consumer-adapted fuses. • Do not connect the connector if strained. 3.2.1 ER76 with one relay 230 V AC 24 V AC 230 V AC 24 V AC...
Page 10 3 | Assembly FISCHER Mess- und Regeltechnik GmbH ER76 switch output does not necessarily have to be used for direct pump con- trol. It can also be used as a monitoring signal for an electronic control system. 3.2.2 ER76 with two relays...
Page 11: Start-Up
All connections are arranged so that there are no mechanical forces acting on the device. ER76 is a control relay for NK06 conductive level probes. Please check the tank system for leaks before commissioning. The function test for the ER76 with one relay is described below. For devices with two relays, the second channel works the same as the first channel.
Page 12: Servicing
5 | Servicing FISCHER Mess- und Regeltechnik GmbH 5 Servicing 5.1 Maintenance The instrument is maintenance-free. We recommend the following regular in- spection to guarantee reliable operation and a long service life: • Check the function in combination with downstream components.
Page 13: Technical Data
FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6 Technical data 6.1 General Type designation ER76 Inputs for conductive probes 1 or 2 Switch outputs 1 or 2 Measurement principle Conductive 6.2 Input variables Measuring range The measuring range (fill level) is de- termined by the connected conductive probe.
Page 14: Construction Design
6.6.1 Materials Housing Polycarbonate / acrylonitrile butadiene styrene (ABS-PC) Terminals Polyamide (PA), Cu alloy 6.6.2 Dimension drawing All dimensions in mm unless otherwise stated Fig. 6: Dimension drawing ER76 1 channel The 2-channel version has the same dimensions. 14/20 BA_EN_ER76...
Page 15: Order Codes
FISCHER Mess- und Regeltechnik GmbH Order codes | 7 7 Order codes Identification No. Type Design: (Code no.) 1-way relay 2-way relay Operating voltage: (Code no.) 230 V AC 24 V AC 7.1 Accessories Order no. Discription NK06 Conductive level probe 09001380 35 mm mounting rail perforated;...
Page 16: Attachment
8 | Attachment FISCHER Mess- und Regeltechnik GmbH 8 Attachment Fig. 7: CE_DE_ER76 16/20 BA_EN_ER76...
Page 17 FISCHER Mess- und Regeltechnik GmbH Attachment | 8 Fig. 8: TAA00001ZU-page_1 BA_EN_ER76 17/20...
Page 18 8 | Attachment FISCHER Mess- und Regeltechnik GmbH Fig. 9: TAA00001ZU-page_2 18/20 BA_EN_ER76...
Page 19 FISCHER Mess- und Regeltechnik GmbH Notes BA_EN_ER76 19/20...
Page 20 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.