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Installation Instructions
Original Instructions
Display Solid-state Temperature Switch
Catalog Numbers 837T-D3x, 837T-D4x
Topic
Summary of Changes
Topic
Safety Considerations
• Read this document for information on installation, handling,
mounting, general product specifications, and operation of this
product. These installation instructions contain important
information on handling the instrument.
• Working safety requires that all safety instructions and work
instructions are observed.
• Observe the relevant local accident prevention regulations and
general safety regulations for the range of use of the instrument.
• The installation instructions are part of the product and must
be kept in the immediate vicinity of the instrument and readily
accessible to skilled personnel at any time.
• Skilled personnel must have carefully read and understood the
operating instructions before any work begins.
• The Bulletin 837T-D is a temperature switch that converts
temperature into an electrical signal indoors and outdoors. The
device has been safely built with state-of-the-art technology and
meets the applicable requirements and EC directives. It can,
however, be a source of danger if used incorrectly or for
anything other than the designated use.
• Qualified individuals are required for installation and
commissioning. Failure to comply results in personal injury or
Page
equipment damage.
1
• Before installation, commissioning and operation, be sure that
1
the appropriate temperature switch has been selected in terms of
2
range of measurement, design, and specific conditions of
measurement.
3
Recommended Installation for Optimal Performance
4
4
5
837T
Page
2
3
4
a. Installation at angle pieces, against the direction of flow
b. Installation in smaller pipes, which are inclined against the
direction of flow
c. Installation vertical to the direction of flow.
A
1
C
B
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Related Manuals for Rockwell Automation Allen-Bradley 837T-D3 Series
Summary of Contents for Rockwell Automation Allen-Bradley 837T-D3 Series
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Page 1: Installation Instructions
Installation Instructions Original Instructions Display Solid-state Temperature Switch Catalog Numbers 837T-D3x, 837T-D4x • Qualified individuals are required for installation and commissioning. Failure to comply results in personal injury or Topic Page equipment damage. Summary of Changes • Before installation, commissioning and operation, be sure that Safety Considerations the appropriate temperature switch has been selected in terms of Specifications... -
Page 2: Specifications
(3) The mounting situation (immersion depth, sensor length, operating conditions) determines the accuracy. This situation is especially the case for large temperature gradients between the environment and the medium. (4) Absolute value of temperature. Rockwell Automation Publication 837T-IN001B-EN-P - January 2019... - Page 3 19 (0.75) (2.16) 15.1 (0.47) (0.59) G1 1/4A 1/4NPT L1 [mm (in.)] L1 [mm (in.)] G 1/4 12 (0.47) 1/4 in. NPT 13 (0.51) G 1/2 14 (0.55) 1/2 in. NPT 19 (0.75) Rockwell Automation Publication 837T-IN001B-EN-P - January 2019...
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Page 4: Wiring Diagrams
Step 3 • Fluid leakage is indicative of damage. • Since this switch is a safety-relevant component, check the diaphragm for any visible damage. (2.16) Required tool: Spanner size 27 open-ended spanner and screwdriver. Rockwell Automation Publication 837T-IN001B-EN-P - January 2019... - Page 5 Note: Short press equals three seconds; long press equals five seconds. IMPORTANT Short press equals three seconds; long press equals five seconds. Rockwell Automation Publication 837T-IN001B-EN-P - January 2019...
- Page 6 Switch function switch output (1 or 2) HNO = hysteresis function, normally open Input of a 16-figure alphanumeric measuring point number HNC = hysteresis function, normally closed FNO = window function, normally open FNC = window function, normally closed Rockwell Automation Publication 837T-IN001B-EN-P - January 2019...
- Page 7 Enter ▼ ▲ DISM PARA ACT, HIGH, LOW, OFF, SP1/FH1,RP1/FL1, SP2/FH2, RP2/FL2 Enter ▼ ▲ Yes/No Reset HIGH, LOW Enter ▼ ▲ Value Password without Enter ▼ ▲ Value Measuring point number without Rockwell Automation Publication 837T-IN001B-EN-P - January 2019...
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Page 8: Documentation Feedback
Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400 Publication 837T-IN001B-EN-P - January 2019 10002082011 Ver 01 14145134.02 Supersedes Publication 837T-IN001A-EN-P - May 2016 Copyright © 2019 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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