Schmidt SS 20.260 Instructions For Use Manual
  1. Manuals
  2. Brands
  3. Schmidt Manuals
  4. Accessories
  5. SS 20.260
  6. Instructions for use manual

Schmidt SS 20.260 Instructions For Use Manual

Flow sensor
Hide thumbs Also See for SS 20.260:
Table of Contents

Advertisement

Quick Links

®
SCHMIDT
Flow Sensor
SS 20.260
Instructions for Use

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SS 20.260 and is the answer not in the manual?

Questions and answers

Related Manuals for Schmidt SS 20.260

Summary of Contents for Schmidt SS 20.260

  • Page 1 ® SCHMIDT Flow Sensor SS 20.260 Instructions for Use...

  • Page 2: Table Of Contents

    Startup ................... 14 Information concerning operation ..........15 Service information ................ 16 Technical data ................18 Declaration of conformity ............... 19 Imprint: Copyright 2020 SCHMIDT Technology GmbH All rights reserved Version 508981.02H Subject to modifications Instructions for Use – SCHMIDT ®...

  • Page 3: Important Information

     SCHMIDT Technology cannot give any warranty as to its suitability for certain purpose and cannot be held liable for accidental or sequen- tial damage in connection with the delivery, performance or use of this unit.

  • Page 4: Application Range

    3 Mounting instructions General information on handling The SS 20.260 is a precision instrument with high measuring sensitivity. In spite of the robust construction of the sensor tip soiling of the inner sen- sor elements can lead to distortion of measurement results (see also chap- ter 8).
  • Page 5 (such as edges, seams, bends etc.). It is also necessary to pay attention to the design of the run-out distance because disturbances also generate turbulences against the flow direction. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260...
  • Page 6 Alternatively, flow rectifiers could be used, e.g. honeycombs made of plastic or ceramics. Considers the flow profile and sensor obstruction. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 6...
  • Page 7 0.850 1.419 11.353 28.383 0.854 2.066 16.527 41.317 0.857 2.834 22.673 56.683 0.859 3.723 29.781 74.452 0.862 4.740 37.920 94.800 1000 1000 0.864 5.865 46.923 117.308 Table 2 Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 7...
  • Page 8 SCHMIDT Technology provides a convenient calculation tool to compute flow velocity or volume flow in pipes (circular or rectangular) for all its sen- sor types and measuring ranges on its homepage: www.schmidt-sensors.com Mounting in a wall The housing has an external thread M18 x 1 (19 mm long) for direct mounting on or in the medium separating wall.
  • Page 9  In case of a longer sensor probe push it partly into the pipe as re- quired. Always avoid bending of the probe tube during screwing. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 9...
  • Page 10 - Pipe (typ.), wall - Screwing into a welding stud 517 206 - Material: Brass PTFE, NBR Atmospheric pressure use! SW24 SW27 Table 3 Must be welded. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 10...

  • Page 11: Electrical Connection

    U Both signal outputs 22 mA (maximum measuring values), minimum operating voltage. It is recommended, to use AGND as measuring reference potential for voltage output. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 11...

  • Page 12: Signalization

    Supply voltage beyond specification range or Medium temperature beyond specification range Sensor defective Table 5 LED off LED flashes (approx. 2 Hz): green LED on: green LED flashes (approx. 2 Hz): red Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 12...
  • Page 13 For a correct temperature measurement, the flow velocity on the sensor head must be > 2 m/s. An excessive temperature value is output if flow velocity is < 2 m/s. In accordance with NAMUR specification. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 13...

  • Page 14: Startup

    Figure 7 Representation for medium temperature 6 Startup ® Prior to switching on the SCHMIDT Flow sensor SS 20.260, the follow- ing checks have to be carried out:  Immersion depth of the sensor probe and alignment of the housing.

  • Page 15: Information Concerning Operation

    Check mounting conditions  Sensor head is not in optimal position  Run-in/run-out distance is too short Strong fluctuations of pressure or Check operating parameters temperature Table 6 Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 15...

  • Page 16: Service Information

    Conventional cotton swabs are too big and therefore can break the chip. Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 16...
  • Page 17 Before putting it into operation again, wait until the sensor head is com- pletely dried. The drying process can be accelerated by gently blowing If this procedure does not help, the sensor must be sent to SCHMIDT Technology for cleaning or repair.

  • Page 18: Technical Data

    50 / 100 / 200 / 350 / 500 mm Weight 200 g max. Table 7 Measuring ranges of 50 m/s and 60 m/s only for variant “2”. Under conditions of the reference. With cable end sleeves Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 18...

  • Page 19: Declaration Of Conformity

    10 Declaration of conformity Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 19...
  • Page 20 SCHMIDT Technology GmbH Feldbergstraße 1 78112 St. Georgen Germany Phone +49 (0)7724 / 899-0 +49 (0)7724 / 899-101 Email sensors@schmidttechnology.de www.schmidt-sensors.com Instructions for Use – SCHMIDT ® Flow sensor SS 20.260 Page 20...

This manual is also suitable for:

506690

Table of Contents