Thermo Scientific 20-35-NM-F User manual

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Mercury Free Tilt Sensor
User’s Guide
REC 4274 Rev. C Part Number 092241
RAMSEY MERCURY FREE TILT SENSORS
FOR NON-HAZARDOUS AREAS
Manufacturer:
Thermo Fisher Scientific
501 90th Avenue NW
55433 Minneapolis, MN (USA)
[phone]
CONTROL UNITS PROBES
Model 20-35-NM-F Model 20-54-NM-SS
Model 20-35-NM-DIN Model 20-52-NM
Model 20-59-NM
Model 20
-
55
-
N
M
-
P

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Revision History
Revision Number Date Released ECO Number Release Specifics
A March 2008 1819 Manual first release
B September 2013 3369 Correct Output Names
C September 2013 3381 Add specifications

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party, but only in connection with a transfer of the Equipment.

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General
Thermo Fisher Scientific may terminate your license if you fail to comply with the terms and
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license.
Occupational Safety and Health Act (OSHA)
The Occupational Safety and Health Act clearly places the burden of compliance on the user of the
equipment and the act is generalized to the extent that determination of compliance is a judgment
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Scientific will use their best efforts to remedy such violation at a reasonable cost to the buyer.

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Thermo Fisher Scientific Warranty
The seller agrees, represents, and warrants that the equipment delivered hereunder shall be free from
defects in material and workmanship. Such warranty shall not apply to accessories, parts, or material
purchased by the seller unless they are manufactured pursuant to seller's design, but shall apply to
the workmanship incorporated in the installation of such items in the complete equipment. To the
extent, purchased parts or accessories are covered by the manufacturer's warranty; seller shall extend
such warranty to buyer.
Seller's obligation under said warranty is conditioned upon the return of the defective equipment,
transportation charges prepaid, to the seller's factory in Minneapolis, Minnesota, and the submission
of reasonable proof to seller prior to return of the equipment that the defect is due to a matter
embraced within seller's warranty hereunder. Any such defect in material and workmanship shall be
presented to seller as soon as such alleged errors or defects are discovered by purchaser and seller is
given opportunity to investigate and correct alleged errors or defects and in all cases, buyer must
have notified seller thereof within two (2) years after delivery, or two (2) years after installation if
the installation was accomplished by the seller.
Said warranty shall not apply if the equipment shall not have been operated and maintained in
accordance with seller's written instructions applicable to such equipment, or if such equipment shall
have been repaired or altered or modified without seller's approval; provided, however, that the
foregoing limitation of warranty insofar as it relates to repairs, alterations, or modifications, shall not
be applicable to routine preventive and corrective maintenance which normally occur in the
operation of the equipment.
“EXCEPT FOR THOSE WARRANTIES SPECIFICALLY CONTAINED HEREIN, SELLER
DISCLAIMS ANY AND ALL WARRANTIES WITH RESPECT TO THE EQUIPMENT
DELIVERED HEREUNDER, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR USE. THE SOLE LIABILITY OF SELLER
ARISING OUT OF THE WARRANTY CONTAINED HEREIN SHALL BE EXCLUSIVELY
LIMITED TO BREACH OF THOSE WARRANTIES. THE SOLE AND EXCLUSIVE REMEDY
FOR BREACH OF THE WARRANTIES SET OUT ABOVE SHALL BE LIMITED TO THE
REPAIR OR REPLACEMENT OF ANY DEFECTIVE ACCESSORY, PART OR MATERIAL
WITH A SIMILAR ITEM FREE FROM DEFECT, AND THE CORRECTION OF ANY DEFECT
IN WORKMANSHIP. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES.”
Purchaser agrees to underwrite the cost of any labor required for replacement; including time, travel,
and living expenses of a Thermo Fisher Scientific Field Service Engineer at the closest factory base.
Thermo Fisher Scientific
501 90th Ave. NW
Minneapolis, MN 55433
Phone: [phone]
Fax: [phone]

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Disclaimer
Though the information provided herein is believed to be accurate, be advised that the
information contained herein is not a guarantee for satisfactory results. Specifically, this
information is neither a warranty nor guarantee, expressed or implied, regarding
performance, merchantability, fitness, or any other matter with respect to the products, and
recommendation for use of the product/process information in conflict with any patent.
Please note that Thermo Fisher Scientific reserves the right to change and/or improve the
product design and specifications without notice.

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Table of Contents
Table of Contents.................................................................................................................. ix
List of Figures ........................................................................................................................ x
List of Tables .......................................................................................................................... x
About this Manual ............................................................................................................... xii
Who Should Use this Manual? ......................................................................................... xii
Standards Applied and Technical Specifications.............................................................. xii
Organization of the Manual ..............................................................................................xiii
Documentation Conventions ............................................................................................xiii
Safety Messages............................................................................................................. xiv
General Precaution ......................................................................................................... xiv
Safety in Use ................................................................................................................... xiv
Safety in Maintenance..................................................................................................... xiv
How to Get Help ............................................................................................................... xv
Certifications....................................................................................................................xvii
Chapter 1 Introduction................................................................................................... 1-1
1.1 Applications ..........................................................................................................1-1
1.2 Probe Models ......................................................................................................1-1
1.2.1 Specifications ................................................................................................1-2
1.3 Control Units.........................................................................................................1-3
1.3.1 Model 20-35-NM-F (Field Mount Version) .....................................................1-3
1.3.2 Model 20-35-NM-DIN (Internal Cabinet Version) ..........................................1-4
1.4 Symbol Identification ............................................................................................1-5
Chapter 2 Installation..................................................................................................... 2-1
2.1 Control Unit Installation.........................................................................................2-1
2.2 Probe Installation..................................................................................................2-3
2.3 Electrical Installation.............................................................................................2-8
Chapter 3 Operation....................................................................................................... 3-1
3.1 System Configuration ...........................................................................................3-3
3.1.1 Model 20-35-NM-F Function Modes..............................................................3-3
3.1.2 Model 20-35-NM-F Switches Setting.............................................................3-4
3.1.3 Model 20-35-NM-DIN Function Modes..........................................................3-5
3.1.4 Model 20-35-NM-DIN Switches Setting.........................................................3-6
Chapter 4 Maintenance and Troubleshooting ............................................................. 4-1
4.1 Indications of Maintenance...................................................................................4-1
4.2 Control Unit Model 20-35-NM-F Check Procedure...............................................4-2
4.3 Control Unit Model 20-35-NM-DIN Check Procedure...........................................4-2
Chapter 5 Service Repair and Replacement Parts ...................................................... 5-1
5.1 Parts Ordering Information ...................................................................................5-2

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Chapter 6 Decommissioning and Dismantling ............................................................. 6-1
6.1 Decommissioning of the System ..........................................................................6-1
6.2 Dismantling the Unit .............................................................................................6-1
Chapter 7 Labels ............................................................................................................. 7-1
7.1 Control Unit Mod.20-35-NM-F Labels ..................................................................7-1
7.2 Control Unit Mod.20-35-NM-DIN Labels ..............................................................7-2
7.3 Probe Label..........................................................................................................7-3
List of Figures
Figure 2-1: Tilt Control Unit Model 20-35-NM-F Dimensions............................................2-1
Figure 2-2: Tilt Control Unit Model 20-35-NM-DIN Dimensions.........................................2-2
Figure 2-3: Tilt Sensor Model 20-54-NM-SS .....................................................................2-4
Figure 2-4: Tilt Sensor Model 20-52-NM ...........................................................................2-5
Figure 2-5: Tilt Sensor Model 20-59-NM ...........................................................................2-6
Figure 2-6: Tilt Sensor Model 20-55-NM-P........................................................................2-7
Figure 2-7: Control Unit Model 20-35-NM-F Terminal Wiring ...........................................2-8
Figure 2-8: Control Unit Model 20-35-NM-F Internal Layout ............................................2-9
Figure 2-9: Control Unit Model 20-35-NM-DIN Terminal Wiring .....................................2-10
Figure 2-10: Control Unit Model 20-35-NM-DIN Internal Layout ....................................2-11
List of Tables
Table 1-1: Symbol Identification ........................................................................................1-5
Table 3-1: Model 20-35-NM-F Function Modes Switch Settings ......................................3-3
Table 3-2: SW1and SW2 Settings .....................................................................................3-4
Table 3-3: SW3 Settings....................................................................................................3-4
Table 3-4: SW5 Settings....................................................................................................3-4
Table 3-5: SW4 Settings....................................................................................................3-4
Table 3-6: Model 20-35-NM-DIN Function Modes Switch Settings ..................................3-5
Table 3-7 SW1 and SW2 Settings ....................................................................................3-6
Table 3-8 SW3 Settings......................................................................................................3-6
Table 3-9 SW5 Settings.....................................................................................................3-6