Post on 29-Mar-2015
MAO Flow MetersSales Deck
2012
2 | Presentation Title
What is the MAO Flow Meter?The MAO flow meter is an instrument used for monitoring or measuring the flow rate of a liquid.
What type of Flow Meter does ChemTec manufacturer?
No rotating internals
Handles corrosive & non-corrosive liquids
Works best with liquids of 150 cps viscosity or less
No bearings
Single moving part
In-line metering
Output: Analog, Digital, Current loop
Measures low flows
ChemTec manufactures a unique flow meter called the MAO; consist of a single moving part.
3 | Presentation Title
How does it work?
ChemTec’s flow meters measure the volumetric flow of liquids in pipes
Fluid flows through the unit and displaces the Teflon® encapsulated piston. The displacement is proportional to the volumetric flow through the unit.
A transducer (encapsulated in the body, outside of the fluid path) senses the displacement of the piston. The transducers signal is converted by a microprocessor-based conditioning circuit then sends the signal to 3 types of outputs: volt, pulse and current loop.
• 3 types of outputs• Analog: 0-5 VDC (Min. load impedance-
5k ohm in parallel with 250pf)• Digital: 200 Hz (Square wave 50% duty
cycle, TTL compatible output)• Current Loop: 4-20 mA (Loop load-
100Ω=1% ¼ watt)
Flow in
Flow out
4 | Presentation Title
MAO Series Specs - Flow Ranges, Calibration
MAO-125-X-XX
• AA model• Low: 20 mL/m• High: 70 mL/m
• BB model• Low: 50 mL/m• High: 150 mL/m
MAO-500-X-XX• AA model
• Low: 0.5 GPM• High: 2.00 GPM
• BB model• Low: 1 GPM• High: 3.5 GPM
MAO-250-X-XX• AA model
• Low: 100 mL/m• High: 500 mL/m
• BB model• Low: 250 mL/m• High: 1800 mL/m
Reading the Calibration Chart
5 | Presentation Title
MAO Series Specs
Materials• Teflon®
• All Teflon® wetted parts model available
• Brass• Stainless Steel
Operating Temperature Ranges• Ambient: 0º to 125º F (-18º to
52º C)• Media: 0º to 180º F (-18º to
82º C)
Total Accuracy: ± 5%
Repeatability: ± 2% Full Scale
Linearity: ± 2% Full Scale
Power Requirements:
Voltage- regulated 15-30 VDC
Current:-250 mA
Maximum working pressure (PSIG)• MAO-125/250/500 - Teflon®
• 80 PSIG• MAO-125/250/500 – Brass:
• 1500 PSIG• MAO-125/250/500 - Stainless:
• 3000 PSIG
Port Sizes (given in inches)• ⅛” FNPT
• MAO-125-AA; MAO-125-BB• ¼” FNPT
• MAO-250-AA; MAO-250-BB• ½” FNPT
• MAO-500-AA; MAO-500-BB
6 | Presentation Title
Where is the MAO used?
Wet benches
Cooling systems
Materials consumption measurement
Process controls
Chemical processing of raw/caustic material
Portable and permanent chemical injection skids
Chemical dosing, mixing, delivery systems
Chemical feed systems
Pharmaceutical processing equipment used in dosing, spraying, dispensing of pharmaceutical grade material
Beverage dispensing, mixing, processing
7 | Presentation Title
Selecting the correct MAO for your customer
Choosing the correct flow meter is important. Have a clear understanding of the application in which it will be used. Particularly the process fluid and installation requirements of the application.• What is being measured?• Is the fluid clean?• Display or electronic signal output?• Range? Min/max flow rate for flow meter• Min/max process temperature• Is the fluid chemically compatible with the flow meter wetted parts?• Pipe size?• Fittings? Installation? Direction? Consider the piping (what direction)
and location of the flow meter. Is there magnetic fields present or possible?
8 | Presentation Title
InstallationPurge all lines of air before use
Placement• In-line before control valves
• Should not drain completely when flow ceases
• 10 microns filter installed ahead of the flow meter
• Do not place near ferrous material or strong electro-magnetic fields
Sensitive to velocity profile disturbances in the flow stream
Straight lengths of 10 inside diameters upstream & 5 inside diameters downstream
Do not use pipe paste. Teflon tape can shred and enter MAO flow stream
9 | Presentation Title
InstallationMounting• MAO-125-X-AA;• Mount with INLET vertical port up;
OUTLET port horizontal
• MAO-125-X-BB• MAO-250-X-AA• MAO-250-X-BB
• Mount with INLET vertical• INLET port down• OUTLET port horizontal
Mounting• MAO-500-X-AA; MAO-500-X-BB
• Mount with INLET vertical INLET port down
• OUTLET port horizontal
10 | Presentation Title
How to Order