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SS 20.600 Ex 

– Supplementary instructions for use in explosive atmospheres ATEX  Page 3

 

1  Important information 

The present instructions for use contain all ATEX specific information for 
fast commissioning and safe operation of the version of 

SCHMIDT

®

 Flow 

Sensor SS 20.600 Ex 

suitable for ATEX: 

  Please  also  read  the  "Instructions  for  Use  SS  20.600"  (material  no.: 

535084.02), because the present instructions for use are supplemen-
tary instructions for use in explosive atmospheres. 

  These instructions for use must be read completely and observed care-

fully, before putting the unit into operation. 

  Any claims under the manufacturer's liability for damage resulting from 

non-observance or non-compliance with these instructions will become 
void. 

  Tampering with the device in any way whatsoever - with the exception 

of the designated use  and the operations described  in these instruc-
tions for use - will forfeit any warranty and exclude any liability. 

  The unit is designed exclusively for the use described below (refer to 

chapter 4

). In particular, it is not designed for direct or indirect protec-

tion of personal or machinery. 

 

SCHMIDT Technology

 cannot give any warranty as to its suitability for 

a certain purpose and cannot be held liable for accidental or sequential 
damage in connection with the delivery, performance or use of this unit. 

Other instructions for assembly, commissioning, maintenance and disas-
sembly  can  be  found  in  the  general  instructions  for  use  (material  no.: 
535084.02) of the 

SCHMIDT

®

 Flow Sensor SS 20.600

Symbols used in this manual 

The symbols used in this manual are explained in the following section. 

 

 

 

 

Danger warnings and safety instructions - Read  carefully!  

Non-observance  of  these  instructions  may  lead  to  injury  of  the 
personnel or malfunction of the device. 

 

Risk of explosion - Read carefully! 

Important instructions for use in areas subject to explosion haz-
ards.

 

!

Summary of Contents for SS 20.600 E Series

Page 1: ...SCHMIDT Flow Sensor SS 20 600 Ex Supplementary instructions for use in explosive atmospheres ATEX ...

Page 2: ...torage and transport 4 3 Safety instructions for explosive atmospheres 5 4 Application range 6 5 Mounting instructions 7 6 Electrical connection and protective sleeve assembly 9 7 Type plate Labelling 11 8 Declarations of conformity 12 9 Type Examination Certificate 13 Imprint Copyright 2021 SCHMIDT Technology GmbH All rights reserved Version 535698 02B Subject to modifications ...

Page 3: ...perations described in these instruc tions for use will forfeit any warranty and exclude any liability The unit is designed exclusively for the use described below refer to chapter 4 In particular it is not designed for direct or indirect protec tion of personal or machinery SCHMIDT Technology cannot give any warranty as to its suitability for a certain purpose and cannot be held liable for accide...

Page 4: ...ckaging parts by submitting it to a recycling company Conditions for storage and transport The following points must be observed to avoid damage Do not expose the device to excessive mechanical load such as throw ing stacking falling etc Do not use the device in areas with high humidity or rain Do not expose the device to direct sun radiation for a long time Before transport or shipment of the sen...

Page 5: ...t be ensured by appropriate labeling o G Gas o Device categories 1 2 3 in 3 zones o Gas values Temperature class T1 T6 Prior to carrying out operations such as assembly or electrical connection make sure that o the operation approval of the owner is available o there is no explosive atmosphere o the device is disconnected from the mains o the device cannot be switched on inadvertently Avoid dust d...

Page 6: ...cuit is isolated1 from the housing up to 30 V o A power supply according to protection class III is required SELV or PELV The permissible operating temperatures are o Electronics 20 70 C o Sensor probe 40 120 C Electrical datas o Rated voltage 24 VDC 20 o Rated current 250 mA o Measurement outputs 0 10 V 4 20 mA o Impulse output f 0 100 Hz Umax 28 8 VDC Imax 100 mA o Relais output f 0 100 Hz Umax ...

Page 7: ... opening of the housing renders the explosion pro tection null and void Remote version The connecting cable between the sensor and the housing in cludes intrinsically safe circuits It is already connected ex works and must not be disconnected or modified in any way Mounting ground or equipotential bonding conductor The metallic enclosure of the sensor must be connected to grounding or equipotentia...

Page 8: ...SS 20 600 Ex Supplementary instructions for use in explosive atmospheres ATEX Page 8 Figure 5 1 Grounding contacts red remote version Figure 5 2 Grounding contacts red compact sensor ...

Page 9: ...rating voltage is active during electrical installation and that the operating voltage cannot be switched on inadvertently This applies in particular to disassembly of the sensor WARNING DO NOT DISCONNECT THE CONNECTING CABLE FROM THE SENSOR UNDER VOLTAGE WARNING DO NOT OPEN PROTECTIVE SLEEVE UNDER VOLTAGE It is recommended to connect first the connecting cable on the field side first connect the ...

Page 10: ...or use in explosive atmospheres ATEX Page 10 Figure 6 1 Assembly of the connecting cable with protective sleeve 1 Cable bushing Protective sleeve Sensor plug Fastening screw of protective sleeve with circlip Nut of cable bushing M12 7 Nm 2 3 4 ...

Page 11: ...ckets 2 5 mm do not for get the snap rings on the housing 4 Tighten the nut of the cable bushing M12 7 Nm 7 Type plate Labelling The type plate for labelling according to the standards is fixed at the sen sor by means of a wire loop If required the customer can attach this plate at another place as long as its subject the sensor can be identified clearly and it is legible and unde tachable Example...

Page 12: ...sponsibility that the product SCHMIDT Flow Sensor SS 20 600 Part No 524 600 configuration code A B C D E F 2 H PP is in compliance with the appropriate European guidelines and standards and UK statutory requirements and designated standards The corresponding declarations of conformity can be download from SCHMIDT homepage www schmidt sensors com www schmidttechnology de ...

Page 13: ...SS 20 600 Ex Supplementary instructions for use in explosive atmospheres ATEX Page 13 9 Type Examination Certificate ...

Page 14: ...SS 20 600 Ex Supplementary instructions for use in explosive atmospheres ATEX Page 14 ...

Page 15: ...SS 20 600 Ex Supplementary instructions for use in explosive atmospheres ATEX Page 15 ...

Page 16: ...or use in explosive atmospheres ATEX Page 16 SCHMIDT Technology GmbH Feldbergstrasse 1 78112 St Georgen Germany Phone 49 0 7724 899 0 Fax 49 0 7724 899 101 Email sensors schmidttechnology de URL www schmidt sensors com www schmidttechnology de ...

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