Brooks Instrument BM01 Operating Manual
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008 Brooks
®
Models BM01 and BM02
Brooks® Oval Flowmeters,
BM Oval Series BM01 and BM02
Typical BM01 and BM02
Installation and Operation Manual
X-PD-BM01-02-eng
®
Models BM01 and BM02
Part Number: 541B042AHG
March, 2008Brooks
Essential Instructions
Read this page before proceeding!
Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. Because
these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they
continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your
safety program when installing, using and maintaining Brooks Products.
• Read all instructions prior to installing, operating and servicing the product. If this instruction manual is not the correct
manual, please see back cover for local sales office contact information. Save this instruction manual for future reference.
• If you do not understand any of the instructions, contact your Brooks Instrument representative for clarification.
• Follow all warnings, cautions and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper installation, operation and maintenance of the product.
• Install your equipment as specified in the installation instructions of the appropriate instruction manual and per applicable
local and national codes. Connect all products to the proper electrical and pressure sources.
• T o ensure proper performance, use qualified personnel to inst all, operate, update, program and maintain the product.
• When replacement parts are required, ensure that qualified people use replacement parts specified by Brooks Instrument.
Unauthorized parts and procedures can affect the product's performance and place the safe operation of your process at
risk. Look-alike substitutions may result in fire, electrical hazards or improper operation.
• Ensure that all equipment doors are closed and protective covers are in place, except when maintenance is being
performed by qualified persons, to prevent electrical shock and personal injury.
Pressure Equipment Directive (PED)
All pressure equipment with an internal pressure greater than 0.5 bar (g) and a size larger than 25mm or 1" (inch) falls under the
Pressure Equipment Directive (PED). The Directive is applicable within the European Economic Area (EU plus Norway, Iceland
and Liechtenstein). Pressure equipment can be traded freely within this area once the PED has been complied with.
• Section 1 of this manual contains important safety and operating instructions related to the PED directive.
• Meters described in this manual are in compliance with EN directive 97/23/EC module H Conformity Assessment.
• All Brooks Instrument Flowmeters fall under fluid group 1.
• Meters larger than 25mm or 1" (inch) are in compliance with category I, II, III of PED.
• Meters of 25mm or 1" (inch) or smaller are Sound Engineering Practice (SEP).
ESD (Electrostatic Discharge)
Handling Procedure:
1. Power to unit must be removed.
2. Personnel must be grounded, via a wrist strap or other safe, suitable means before any printed circuit card or other internal
device is installed, removed or adjusted.
3. Printed circuit cards must be transported in a conductive container. Boards must not be removed from protective enclosure
until immediately before installation. Removed boards must immediately be placed in protective container for transport,
storage or return to factory.
Comments
This instrument is not unique in its content of ESD (electrostatic discharge) sensitive components. Most modern electronic
designs contain components that utilize metal oxide technology (NMOS, SMOS, etc.). Experience has proven that even small
amounts of static electricity can damage or destroy these devices. Damaged components, even though they appear to
function properly, exhibit early failure.
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008 Brooks
Dear Customer ,
We appreciate this opportunity to service your flow measurement and control requirements with a Brooks
Instrument device. Every day , flow customers all over the world turn to Brooks Instrument for solutions to their gas
and liquid low-flow applications. Brooks provides an array of flow measurement and control products for various
industries from biopharmaceuticals, oil and gas, fuel cell research and chemicals, to medical devices, analytical
instrumentation, semiconductor manufacturing, and more.
The Brooks product you have just received is of the highest quality available, offering superior performance,
reliability and value to the user. It is designed with the ever changing process conditions, accuracy requirements
and hostile process environments in mind to provide you with a lifetime of dependable service.
We recommend that you read this manual in its entirety. Should you require any additional information concerning
Brooks products and services, please contact your local Brooks Sales and Service Office listed on the back cover
of this manual or visit www.BrooksInstrument.com
Y ours sincerely ,
Brooks Instrument
®
Models BM01 and BM02
®
Models BM01 and BM02
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008Brooks
THIS PAGE WAS
INTENTIONALLY
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Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008
Paragraph Page
Number Number
Section 1 Introduction
1-1 Scope .........................................................................................................................................1-1
1-2 Description .................................................................................................................................1-1
1-3 Specifications .............................................................................................................................1-1
Section 2 Installation
2-1 General ......................................................................................................................................2-1
2-2 Receipt of Equipment.................................................................................................................2-1
2-3 Recommended Storage Practice ...............................................................................................2-1
2-4 Return Shipment ........................................................................................................................2-2
2-5 Transit Precaution......................................................................................................................2-2
2-6 Transit Precaution......................................................................................................................2-2
2-7 Installation ..................................................................................................................................2-3
2-8 Pre-Operation Procedures .........................................................................................................2-6
Section 3 Operation
3-1 General ......................................................................................................................................3-1
3-2 Flowmeter Principle of Operation (See Figure 3-1)....................................................................3-1
3-3 Pulse Generator Principle of Operation (See Figure 3-1) ..........................................................3-2
3-4 Operating Instructions................................................................................................................3-2
3-5 Operating Precautions ...............................................................................................................3-2
3-6 Precautions at Operation Shutdown...........................................................................................3-3
Brooks® Models BM01 and BM02
Contents
Paragraph Page
Number Number
Section 4 Maintenance
4-1 General ......................................................................................................................................4-1
4-2 Manufacturer's Maintenence Recommendations .......................................................................4-1
4-3 Disassembly - General...............................................................................................................4-2
4-4 Disassembly - Flowmeter (Refer to Figure 4-1) .........................................................................4-3
4-5 Cleaning .....................................................................................................................................4-3
4-6 Assembly - Flowmeter (Refer to Figure 4-1) ..............................................................................4-3
4-7 Troubleshooting (See Table 4-1)................................................................................................4-4
Section 5 Parts List
5-1 General ......................................................................................................................................5-1
Warranty, Local Sales/Service Cont act Information....................................................................... Back Cover
i
Contents
Brooks® Models BM01 and BM02
Figures
Figure Page
Number Number
1-1 Typical Meter Error and Pressure Drop.......................................................................................1-3
1-2 Dimensions .................................................................................................................................1-3
2-1 Proper Orientation of Meter Assembly ........................................................................................2-4
2-2 Typical Inst allation for Fuel Metering...........................................................................................2-4
2-3 Horizontal Installation ..................................................................................................................2-5
2-4 Vertical Installation ......................................................................................................................2-5
2-5 Electrical Connections ................................................................................................................2-6
3-1 Principle of Operation .................................................................................................................3-3
4-1 Assembly/Disassembly Diagram ................................................................................................4-4
5-1 Exploded Parts Drawing..............................................................................................................5-2
Tables
Table Page
Number Number
4-1 Troubleshooting..........................................................................................................................4-5
5-1 Spare Part s List..........................................................................................................................5-2
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008
ii
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008
1-1 Scope
The Brooks® BM Series Flowmeters, hereafter called flowmeters, are
positive displacement meters that maesure extremely low flows of clean
liquid with high accuracy . The flowmeter generates an electrical signal
proportional to flow for use with a wide variety of electronic instruments.
1-2 Description
The flowmeters have incorporated the oval rotor principle into its design.
This has proven to be a reliable and highly accurate method of measuring
flow. Exceptional repeatability and high accuracy over a wide range of
viscosities and flow rates are features of the flowmeters.
The low pressure drop and high pressure rating means the flowmeters
are suitable for both gravity and pump (in line) applications.
1-3 Specifications
Introduction
Brooks® Models BM01 and BM02
Capacities
Viscosity BM01 BM02
.3 to 8cP 1.32 to 26 gph 6 to 132 gph
(5 to 100 lph) (25 to 500 lph)
5 to 1,000cP 0.53 to 26 gph 4 to 132 gph
(2 to 100 lph) (15 to 500 lph)
Performance
Accuracy: +/- 1%
Repeatability: 0.03%
Typical meter performance and pressure drop: Figure 1-1.
Ratings
Maximum working pressure:
PPS body: 75 PSIG (500 KP AG)
316 SS body: 150 PSIG (1000 KPAG)
Consult factory for higher pressure options.
Maximum working temperature:
PPS body and/or Rotors (Gears): 176° F (80° C).
316 SS body and Rotors (Gears): 248° F (120° C).
Ambient Temperature: -4° F to 104° F (-20° C to +40° C).
1-1
Introduction
Brooks® Models BM01 and BM02
Outputs
Note: each meter contains both switch types
Reed Switch
Detection Method: Reed Switch, Two wire SPST N/O contact.
Max. Voltage: 150 VDC maximum.
Contact Capacity: 0.25 AMPS Rating 3 W atts.
Termination: 39 inch (1 meter) flying lead.
Nominal K-Factor:
Model BM01: 1000 p/l (3785.4p/gal)
Model BM02: 400 p/l (1514.2 p/gal)
Hall Effect Switch
Detection Method: Hall effect switch
Response Frequency: 1,000 Hz maximum
Output Pulse: Unfactored voltage pulse
Input/Output = 4.5 to 24 VDC (4.6 ~ 9 mA)
Open Collector 25 mA output NPN comp atible with digital logic.
Reverse power protection.
Termination: 39 inch (1 meter) flying lead
Nominal K-Factor:
Model BM01: 1000 p/l (3785.4p/gal)
Model BM02: 400 p/l (1514.2 p/gal)
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008
Meter Materials of Construction
Meter Body: PPS (Polyphenylene Sulfide) or 316 Stainless S teel.
Rotors(Gears):
BM01 / BM02 - PPS or 316 S tainless Steel,
316 St ainless S teel only for High Viscosity.
Bearings:
BM01 / BM02 Zirconia.
Note: (316 PPS Rotors No Bearings Required)
Rotors (Gears) Shafts: 316 S tainless Steel or Optional Hastelloy® C
(PPS body only).
O-Rings: Standard Viton® or Optional Teflon®.
Connections
¼ inch NPT (female)
Dimensions
Refer to Figure 1-2 For certified dimensional prints, contact the factory .
Pressure Equipment Directive (97/23/EC)
Equipment falls under Sound Engineering practice
(SEP) according to the directive.
1-2
Installation and Operation Manual
X-PD-BM01-02-eng
Part Number: 541B042AHG
March, 2008
Introduction
Brooks® Models BM01 and BM02
Figure 1-1 Typical Meter Error and Pressure Drop
For certified dimension prints, consult factory .
Shipping Weight (Approximate)
Body BM01 BM02
PPS .53lbs. .53lbs.
.24Kg. .24Kg.
Stainless 1.32lbs. 1.32lbs.
Steel .60Kg. .60Kg.
Figure 1-2 Dimensions
1-3
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