General Purpose Thermal Mass Flow Meter - Model 4040/4043/4045 - Operation and Service Manual

Sep 27, 2026

Operation and Service Manual for the General Purpose Thermal Mass Flow Meter, covering models 4040/4043/4045. Includes product registration guidance for receiving software updates and enhancements, plus safety information describing heated platinum sensor usage restrictions and non-medical limitations for human respiration measurements. Provides warranty and liability limitations effective February 2015, detailing coverage duration, exclusions, calibration and installation conditions, and the buyer’s exclusive remedies and liability limits.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages32

Reading Time1 h 21 min

AccessFree to download

Safety information

Warning and caution notes

Warranty and liability

Limitation of warranty and liability (effective February 2015)

Service policy

Contact and malfunction reporting

General Purpose Thermal Mass Flow Meter Model 4040/4043/4045 Operation and Service Manual P/N 1980339, Revision N May 2022 Start Seeing the Benefits of Registering Today! Thank you for your TSI® instrument purchase. Occasionally, TSI® releases information on software updates, product enhancements and new products. By registering your instrument, TSI® will be able to send this important information to you. [http://register.tsi.com](http://register.tsi.com) As part of the registration process, you will be asked for your comments on TSI products and services. TSI’s customer feedback program gives customers like you a way to tell ushow we are doing. General Purpose Thermal Mass Flow Meter Model 4040/4043/4045 Operation and Service Manual P/N 1980339, Revision N May 2022 U.S. & INTERNATIONAL TSI Instruments Ltd. (UK) Sales and Customer Service: Sales and Customer Service: (800) 680-1220 / +1(651) 490-2860 +44 (0) 1494 459200 Fax: +1(651) 490-3824 Copyright􀂔 TSI Incorporated / 2002-2022 / All rights reserved. Address TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 USA | | | W A R N I N G | | --- | --- | --- | | | | TSI® Incorporated flow meters employ a heated platinum sensor. They should not be used with flammable or explosive gasses or mixtures. | | | | C A U T I O N | | --- | --- | --- | | | | TSI® Incorporated flow meters are not medical devices under FDA 510k and in no situation should they be utilized for human respiration measurements. | LIMITATION OF WARRANTY AND LIABILITY (effective February 2015) (For country-specific terms and conditions outside of the USA, [please visit](please visit www.tsi.com)[ ](please visit www.tsi.com)[www.tsi.com](please visit www.tsi.com).) Seller warrants the goods, excluding software, sold hereunder, under normal use and service as described in the operator's manual, to be free from defects in workmanship and material for 12 months, or if less, the length of time specified in the operator's manual, from the date of shipment to the customer. This warranty period is inclusive of any statutory warranty. This limited warranty is subject to the following exclusions and exceptions: a. Hot-wire or hot-film sensors used with research anemometers, and certain other components when indicated in specifications, are warranted for 90 days from the date of shipment; b. Pumps are warranted for hours of operation as set forth in product or operator’s manuals; c. Parts repaired or replaced as a result of repair services are warranted to be free from defects in workmanship and material, under normal use, for 90 days from the date of shipment; d. Seller does not provide any warranty on finished goods manufactured by others or on any fuses, batteries or other consumable materials. Only the original manufacturer's warranty applies; e. This warranty does not cover calibration requirements, and seller warrants only that the instrument or product is properly calibrated at the time of its manufacture. Instruments returned for calibration are not covered by this warranty; f. This warranty is VOID if the instrument is opened by anyone other than a factory authorized service center with the one exception where requirements set forth in the manual allow an operator to replace consumables or perform recommended cleaning; g. This warranty is VOID if the product has been misused, neglected, subjected to accidental or intentional damage, or is not properly installed, maintained, or cleaned according to the requirements of the manual. Unless specifically authorized in a separate writing by Seller, Seller makes no warranty with respect to, and shall have no liability in connection with, goods which are incorporated into other products or equipment, or which are modified by any person other than Seller. The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FO

FAQs

What models are covered by this operation and service manual?

The manual covers the General Purpose Thermal Mass Flow Meter models 4040/4043/4045.

What safety restrictions apply to TSI thermal mass flow meters?

They use a heated platinum sensor and should not be used with flammable or explosive gases or mixtures. They are also not medical devices and should not be used for human respiration measurements.

How long is the warranty coverage and what are key exclusions?

Seller warrants the goods (excluding software) for 12 months from shipment, or the time specified in the operator’s manual. Exclusions include calibration requirements and coverage conditions such as proper installation, maintenance, cleaning, and authorized opening/service; certain components and pumps have shorter or usage-specified warranty periods.

Sep 27, 2026

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