TSI Alnor HM670 Operating Manual

Hydronic Manometers

Hydronic Manometer

Model HM670

Owner’s Manual

LIMITATION OF WARRANTY AND LIABILITY

Copyright©

TSI Incorporated / 2007-2008 / All rights reserved.

Address

TSI Incorporated / Alnor Products / 500 Cardigan Road / Shoreview, MN 55126 / USA

Telephone No. Fax No

651 490-2811 / 800 874 2811 [phone]

LIMITATION OF WARRANTY AND LIABILITY (effective July 2000)
Seller warrants the goods sold hereunder, under normal use and service as described in the operator's

manual, shall be free from defects in workmanship and material for twenty-four (24) months, or 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:

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. 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.

c. 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.

d. 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 FOR PARTICULAR PURPOSE OR
MERCHANTABILITY IS MADE.

TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER, AND
THE LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES, INJURIES, OR DAMAGES
CONCERNING THE GOODS (INCLUDING CLAIMS BASED ON CONTRACT, NEGLIGENCE, TORT,
STRICT LIABILITY OR OTHERWISE) SHALL BE THE RETURN OF GOODS TO SELLER AND THE
REFUND OF THE PURCHASE PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR
REPLACEMENT OF THE GOODS. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL,
CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER SHALL NOT BE RESPONSIBLE FOR
INSTALLATION, DISMANTLING OR REINSTALLATION COSTS OR CHARGES. No Action, regardless
of form, may be brought against Seller more than 12 months after a cause of action has accrued. The
goods returned under warranty to Seller's factory shall be at Buyer's risk of loss, and will be returned, if at
all, at Seller's risk of loss.

Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY,
which contains the complete and exclusive limited warranty of Seller. This LIMITATION OF WARRANTY
AND LIABILITY may not be amended, modified or its terms waived, except by writing signed by an Officer
of Seller.

Service Policy

Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers,
our service policy is designed to give prompt attention to any problems. If any malfunction is discovered,
please contact your nearest sales office or representative, or call Customer Service at [phone] or
[phone].

.

CONTENTS

About This Manual.....................................................................................................................2Hiii

Formatting and Typography ....................................................................................................3Hiii

Technical Assistance—Help! ..................................................................................................4Hiii

Chapter 1. Safety......................................................................................................................... 5H1

Safety Warnings......................................................................................................................6H1

Chapter 2. Introduction ..............................................................................................................7H3

Instrument Description ............................................................................................................ 8H3

Unpacking ............................................................................................................................... 9H4

Chapter 3. Instrument Operation............................................................................................... 10H5

Keypad.................................................................................................................................... 11H5

Measurement Screen..............................................................................................................12H6

Powering the Instrument ......................................................................................................... 13H6

Using the AC Adapter .......................................................................................................14H6

Installing the Batteries.......................................................................................................15H6

Zeroing the Manometer...........................................................................................................16H8

Zeroing the Gauge Pressure Sensor ................................................................................17H8

Zeroing the Differential Pressure Sensor ..........................................................................18H8

Connecting the Manometer to the Test Points........................................................................19H8

Attaching the Hoses to the Manometer............................................................................. 20H8

Bleeding the Entrained Air ................................................................................................21H9

Attaching the Hoses to the Test Points ............................................................................. 22H9

Making Pressure Measurements ............................................................................................23H9

Continuous Pressure Measurements.............................................................................. 24H10

Discrete Pressure Measurements................................................................................... 25H10

Making Temperature Measurements ....................................................................................26H10

Connecting the Temperature Probe................................................................................ 27H10

Disconnecting the Manometer from the Test Points .............................................................28H11

Chapter 4. Maintenance and Troubleshooting....................................................................... 29H13

Routine Maintenance ............................................................................................................30H13

Draining the Hoses.......................................................................................................... 31H13

Draining the Manometer Valve........................................................................................ 32H13

In-Line Pressure Snubbers .............................................................................................33H13

Cleaning the In-line Pressure Snubbers .........................................................................34H14

Cleaning the Instrument Housing.................................................................................... 35H14

Battery Charging ................................................................................................................... 36H14

Calibration............................................................................................................................. 37H15

Troubleshooting ....................................................................................................................38H15

Specifications* .......................................................................................................................... 39H17

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About This Manual

This manual explains how to set up, operate and maintain the Alnor® HM670 Hydronic Manometer. Read
it thoroughly before using the instrument.

Formatting and Typography

 Step-by-step instructions are numbered in boldface type: 1, 2, 3, etc., set flush-left against the

margin.

 References to keys on the manometer and the instrument's displayed readout are represented by a

typeface called Arial.

Technical Assistance—Help!

For technical assistance or questions about the instrument of this manual, or if the HM670 Hydronic
Manometer needs repair or recalibration, call Technical Support at [phone] or [phone].

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Chapter 1. Safety

Safety Warnings

Carefully read each of the following safety warnings prior to using the HM670 Hydronic
Manometer:

 Never use the HM670 Hydronic Manometer or accessories on potable water systems or other systems

which may be used to convey fluids for human or animal consumption.

 Never use the HM670 Hydronic Manometer to measure the pressure of volatile, flammable, or

otherwise hazardous fluids or gasses. The instrument is not designed to be intrinsically safe, nor is it
designed for use with caustic or corrosive chemicals.

 Never connect the HM670 Hydronic Manometer or accessories to systems which exceed the

instrument’s maximum pressure specification (300 psi; 2068 kPa).

 Observe proper safety precautions and wear appropriate personal protective equipment, including

gloves and eyewear, when working on high pressure or temperature systems. Ruptured or leaking
lines pose a potential risk of serious personal injury.

 When using the HM670 Hydronic Manometer, verify all hose connections are secure prior to taking

pressure measurements. Loose connections may result in the discharge of pressurized water or air,
posing a potential risk of serious personal injury.

 Exercise caution when disconnecting the HM670 Hydronic Manometer from a pressurized system.

Water or air discharged under pressure poses the potential risk of serious personal injury.

 Exercise caution in using the HM670 Hydronic Manometer near electrical equipment. Water spray

associated with purging or disconnecting hoses presents a potential risk of damage to such equipment.

 Thoroughly drain and dry the HM670 Hydronic Manometer hoses and internal piping after each use.

This will help in limiting the potential for growth of hazardous microorganisms.

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