Hoffer Flow Controls MF User Manual

HFC 9907-A

HP-210

January 2010

MF SERIES

Mini-Flowmeters

for Low Flow Applications

USER’S MANUAL

HP-210

January 2013

107 Kitty Hawk Lane ● P.O. Box 2145 ● Elizabeth City, NC 27909

1-800-628-4584 ● [phone] ● Fax [phone]

www.hofferflow.com email: [e-mail]

HFC 9907-B

NOTICE

Hoffer Flow Controls, Inc. makes no warranty of any kind with regard to this
material, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose.

This manual has been provided as an aid in installing, connecting, calibrating, operating,
and servicing this unit. Every precaution for accuracy has been taken in the
preparation of this manual; however, Hoffer Flow Controls, Inc. neither assumes
responsibility for any omissions or errors that may appear nor assumes liability for
any damages that result from the use of the products in accordance with information
contained in the manual.

HOFFER FLOW CONTROLS' policy is to provide a user manual for each item
supplied. Therefore, all applicable user manuals should be examined before
attempting to install or otherwise connect a number of related subsystems.

During installation, care must be taken to select the correct interconnecting wiring
drawing. The choice of an incorrect connection drawing may result in damage to the
system and/or one of the components.

Please review the complete model number of each item to be connected and locate the
appropriate manual(s) and/or drawing(s). Identify all model numbers exactly before
making any connections. A number of options and accessories may be added to the
main instrument, which are not shown on the basic user wiring. Consult the appropriate
option or accessory user manual before connecting it to the system. In many cases, a
system wiring drawing is available and may be requested from Hoffer Flow Controls.

This document contains proprietary information, which is protected by copyright.
All rights are reserved. No part of this document may be photocopied, reproduced,
or translated to another language without the prior written consent of Hoffer Flow
Controls, Inc.

HOFFER FLOW CONTROLS’ policy is to make running changes, not model
changes, whenever an improvement is possible. This affords our customers the
latest in technology and engineering. The information contained in this document is
subject to change without notice.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED
OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. HFC SHALL NOT BE LIABLE FOR ANY LOSS OR

DAMAGE RESULTING

, DIRECTLY OR INDIRECTLY, FROM THE USE OR LOSS OF USE OF THE GOODS.

WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, THIS EXCLUSION FROM LIABILITY

EMBRACES THE

PURCHASER'S EXPENSES FOR DOWNTIME OR FOR MAKING UP DOWNTIME, DAMAGES

FOR WHICH THE

PURCHASER MAY BE LIABLE TO OTHER PERSONS, DAMAGES TO PROPERTY, AND

INJURY TO OR DEATH OF ANY PERSONS

. HFC NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO

ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OR USE OF

HFC'S GOODS,

AND THERE ARE NO ORAL AGREEMENTS OR WARRANTIES COLLATERAL TO OR AFFECTING THE

AGREEMENT

. PURCHASER'S SOLE AND EXCLUSIVE REMEDY IS THE REPAIR AND/OR REPLACEMENT OF

NONCONFORMING GOODS AS PROVIDED IN THE PRECEDING PARAGRAPHS

. HFC SHALL N OT BE LIABLE

FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT

, INCIDENTAL, OR CONSEQUENTIAL

DAMAGES

.

HFC 9907-B

LIMITED WARRANTY POLICY FOR HOFFER FLOW CONTROLS

HOFFER FLOW CONTROLS, INC. ("HFC") warrants HFC's Precision Series, API Series and
CT Series of turbine flowmeters to be free from defects in material and workmanship under
normal use and service, only if such goods have been properly selected for the service
intended, properly installed and properly operated and maintained as described in the turbine
flowmeter manual. Reference "turbine flowmeter manual" for specific details. This warranty
shall extend for a period of five (5) years from the date of shipment to the original purchaser
and covers the Precision Series, API Series and CT Series of flowmeters supplied with their
standard hybrid ceramic ball bearings only. All other HFC products carry a one (1) year

warranty. This warranty is extended only to the original purchaser ("Purchaser"). Purchaser's

sole and exclusive remedy is the repair and/or replacement of nonconforming goods as
provided in the following paragraphs.

In the event Purchaser believes the Hoffer product is defective, the product must be returned to
HFC, transportation prepaid by Purchaser, within the appropriate warranty period relative to
the product. If HFC's inspection determines that the workmanship or materials are defective
and the required maintenance has been performed and, has been properly installed and
operated, the product will be either repaired or replaced, at HFC's sole determination, free of
additional charge, and the goods will be returned, transportation paid by HFC, using a
transportation method selected by HFC.

Prior to returning the product to HFC, Purchaser must obtain a Returned Material
Authorization (RMA) Number from HFC's Customer Service Department within 30 days after
discovery of a purported breach of warranty, but not later than the warranty period; otherwise,
such claims shall be deemed waived. See the Return Requests/inquiries Section of this manual.

If HFC's inspection reveals the Hoffer product to be free of defects in material and
workmanship or such inspection reveals the goods were improperly used, improperly installed,
and/or improperly selected for service intended, HFC will notify the purchaser in writing and
will deliver the goods back to Purchaser upon receipt of Purchaser's written instructions and
agreement to pay the cost of transportation. If Purchaser does not respond within thirty (30)
days after notice from HFC, the goods will be disposed of in HFC's discretion.

HFC does not warrant the product to meet the requirements of any safety code of any state,
municipality, or other jurisdiction, and Purchaser assumes all risk and liability whatsoever
resulting from the use thereof, whether used singlely or in combination with other machines or
apparatus.

This warranty shall not apply to any HFC product or parts thereof, which have been repaired
outside HFC's factory or altered in any way, or have been subject to misuse, negligence, or
accident, or have not been operated in accordance with HFC's printed instructions or have been
operated under conditions more severe than, or otherwise exceeding, those set forth in the
specifications.

FOR NON-WARRANTY REPAIRS OR CALIBRATIONS, consult HOFFER FLOW

CONTROLS for current repair/calibration charges. Have the following information available
BEFORE contacting HOFFER FLOW CONTROLS:

1. P.O. number to cover the COST of the repair/calibration,

2. Model and serial number of the product, and

3. Repair instructions and/or specific problems relative to the product.

HP-210

CONTENTS

1. Introduction....................................................................................1

1.1 Model Number Designation...................................................2

1.2 Specification..........................................................................7

2. Operation.......................................................................................9

2.1 Principle.................................................................................9

2.2 Precautions.............................................................................9

3. Installation ...................................................................................11

3.1 General Piping.....................................................................11

3.2 Strainers/Filters....................................................................12

3.3 Installation Kits....................................................................12

4. Maintenance.................................................................................13

4.1 General.................................................................................13

4.2 Disassembly.........................................................................13

4.3 Inspection & Repair.............................................................13

4.4 Assembly .............................................................................15

4.5 Pickup Coil Testing .............................................................15

4.6 Trouble Shooting .................................................................17

4.7 Spare Parts...........................................................................18

HP-210

Introduction 1

HP-210

1 Introduction

We are proud that you have selected a Hoffer Turbine Mini­Flowmeter, the finest precision flow transducer on the market.

The Hoffer MF Series of Mini-Flowmeters are designed to meet the
need for a high quality low flow measurement device for service in
low to moderate viscosity clean liquids and for gas applications.

The information in this manual is provided to assist in the proper
installation, use, and maintenance of your instrument.

Please take a few minutes to read through this manual before
installing and operating your meter. If you hav e any problems with
the meter, refer to the maintenance and troubleshooting sections of
this manual.

If you need further assistance, contact your local Hoffer
Representative or contact the Hoffer Flow Controls customer service
department by telephone, fax, or email for advice.

We welcome you to our growing family of satisfied customers. If
you are not completely satisfied with either our product or service,
we encourage you to let us know. We want to improve!

Introduction 2

HP-210

1.1 Model Number Designation

The model number of the meter describes various fittings and options.

MINI-FLOWMETER SERIES FOR LIQUID

MODEL MF1/2X( A )- ( B )-( C )-( D )-( E/F )-(MS)-( G )

PROCESS CONNECTION/END FITTING SIZE
FLOWMETER SIZE
MINIMUM FLOW RATE IN GPM
MAXIMUM FLOW RATE IN GPM
BEARING TYPE
PICKUP COILS
RISER AND EXPLOSION PROOF COIL ENCLOSURES
END FITTING TYPE
SPECIAL FEATURES

PROCESS CONNECTION
ALL MINI-FLOWMETERS ARE 1/2", 37 DEG. MALE FLARE PER MS33656
MODEL MF1/2X( A

)-( )-( )-( )-( / )-( )-( )

END FITTING X ( A

)

MF1/2X20B
MF1/2X30B
MF1/2X40B
MF1/2X50B
MF1/2X60B
MF1/2X70B
MF1/2X80B
MF1/2X90B
MF1/2X100B
MF1/2X125B
MF1/2X150B
MF1/2X175B

MINIMUM FLOW AND MAXIMUM FLOW RATE IN GPM (LINEAR RANGE)
MODEL MF1/2X(

)-( B )-( C )-( )-( / )-( )-( )

( B ) ( C )

FLOWMETER SIZE

MINIMUM FLOW TO MAXIMUM FLOW

MF20 .015 GPM .049 GPM
MF30 .017 GPM .120 GPM
MF40 .020 GPM .150 GPM
MF50 .023 GPM .2 GPM
MF60 .025 GPM .25 GPM
MF70 .050 GPM .5 GPM
MF80 .075 GPM .75 GPM
MF90 .085 GPM .85 GPM
MF100 .1 GPM 1 GPM
MF125 .13 GPM 1.3 GPM
MF150 .2 GPM 2 GPM
MF175 .3 GPM 3 GPM