Azbil CML 050 User Manual
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Azbil CML 050 User Manual

High-flow mass flow meter
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No. CP-SP-1161E
CML 050/080/100/150
High-Flow Mass Flow Meter
User's Manual
Thank you for purchasing an Azbil
Corporation product.
This manual contains information for
ensuring the correct use of this product.
It also provides necessary information
for installation, maintenance, and
troubleshooting.
This manual should be read by those who
design and maintain equipment that uses
this product. Be sure to keep this manual
nearby for handy reference.

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Summary of Contents for Azbil CML 050

  • Page 1 No. CP-SP-1161E CML 050/080/100/150 High-Flow Mass Flow Meter User's Manual Thank you for purchasing an Azbil Corporation product. This manual contains information for ensuring the correct use of this product. It also provides necessary information for installation, maintenance, and troubleshooting.
  • Page 2 If you should find an error or omission, please contact the azbil Group. In no event is Azbil Corporation liable to anyone for any indirect, special or consequential damages as a result of using this product. © 2004–2020 Azbil Corporation All Rights Reserved.
  • Page 3 Conventions Used in This Manual „ The safety precautions explained in the following section aim to prevent injury to the operator and others, and to prevent property damage. Warnings are indicated when mishandling this WARNING product might result in death or serious injury. CAUTION Cautions are indicated when mishandling this product might result in minor injury to the user, or...

  • Page 4: Safety Precautions

    Safety Precautions WARNING If this device is used with a flammable gas such as natural gas 13A, propane, or butane, install it on the upstream side of the safety shutoff valve. If air somehow enters the piping, resulting in an explosive mixture, and the sensor makes a spark due to some cause like a lightning strike, an explosion could occur inside the pipe.

  • Page 5: Unpacking

    Unpacking Check the following items when unpacking: 1. Check the model number to make sure you received the correct product. 2. Check for any obvious damage. 3. Check the contents of the package against the packing list to make sure that all items are included. Items included in the CML are shown below.

  • Page 6: Table Of Contents

    Contents Conventions Used in This Manual Safety Precautions Unpacking Chapter 1. OVERVIEW Overview „ Features „ System configuration example „ Model selection table „ „ Gas types and flow rate ranges Chapter 2. NAMES AND FUNCTIONS OF PARTS Chapter 3. INSTALLATION AND WIRING „...

  • Page 7: Chapter 1. Overview

    Overview „ The CML High-Flow Mass Flow Meter features high accuracy and high rangeability, which are made possible by Micro Flow thermal mass flow sensors (hereafter, μF sensors) developed by Azbil Corporation. Features „ • This thermal mass flow meter does not need temperature and pressure compensation.

  • Page 8: X84; Model Selection Table

    Chapter 1. OVERVIEW Model selection table „ Basic Gas- Option Pipe Connection Power Mounting model Model contacting Output Communication Suffix Description size method type source orientation material High-flow mass flow meter 50 A (2B) 80A (3B) 100 A (4B) 150 A (6B) Operating pressure range: 0 to less than 1 MPa Material of major parts:...

  • Page 9: Chapter 2. Names And Functions Of Parts

    Chapter 2. NAMES AND FUNCTIONS OF PARTS Event LEDs EV1, EV2: Lit when event output turns on EV3: Lit when self-diagnostic output is generated. Unit of pressure Instantaneous flow rate display: 5 digits (m Totalized flow display: 9 digits (m MODE key: Used for setting parameters Keys...
  • Page 10 -MEMO-...

  • Page 11: Chapter 3. Installation And Wiring

    Chapter 3. INSTALLATION AND WIRING WARNING If this device is used with a flammable gas such as natural gas 13A, propane, or butane, install it on the upstream side of the safety shutoff valve. If air somehow enters the piping, resulting in an explosive mixture, and the sensor makes a spark due to some cause like a lightning strike, an explosion could occur inside the pipe.

  • Page 12: X84; Installation Location

    Chapter 3. INSTALLATION AND WIRING Installation location „ Avoid installing the device where it will be subject to conditions such as the following. • Ambient temperature colder than −25°C or hotter than +60°C • Humidity higher than 90%RH • Sudden temperature fluctuations causing dew condensation •...

  • Page 13: X84; Behavior When The Flow Rate Greatly Exceeds The Measurement Range

    Chapter 3. INSTALLATION AND WIRING Behavior when the flow rate greatly exceeds the measurement range „ CAUTION Be sure to use this device within the flow-rate range stipulated in the product specifications. To prevent excessive flow, use a suitable means to control the supply pressure or use a throttle valve or the like to control the flow rate.
  • Page 14 If the device and the pipe on the downstream side have different pipe sizes, provide a straight pipe section whose length is twice the pipe diameter. Upstream side FC filter (made by Azbil Kimmon) MFF300-L filter No straight pipe No straight pipe section is needed.
  • Page 15 If a mist separator is used to remove oil, the concentration of residual oil content must be 0.01 mg/m or less. Azbil Corporation's Specification sheet CP-SS-1824 (in Japanese)(for mist separators) • Do not install the device where it is subject to a pulsating flow.
  • Page 16 Azbil Corporation's Specification sheet CP-SS-1824 (in Japanese) (for permanent filter). In addition, since the built-in filters cannot eliminate moisture or oil, be sure to install an external filter to remove such foreign matter.
  • Page 17 80394037-001 80394038-001 100A 80394039-001 150A 80394040-001 • FDSNC type filter (Manufactured by Azbil Kimmon) Operating pressure range: 0 to 0.98 MPa Filter element: Built-in FDSNC filter Spare filter element for FDSNC (manufactured by Azbil Corporation) filters(manufactured by Azbil Corporation) Pipe size Part No.

  • Page 18: X84; Pipe Installation

    Chapter 3. INSTALLATION AND WIRING Pipe installation „ WARNING The mass of this device is 14 to 45 kg or more. When moving or transporting it, use equipment such as a dolly or use 2 or more people. Carelessly hoisting the device and accidentally dropping it can cause injury or damage. CAUTION Do not flush out the pipes with this device installed.
  • Page 19 Chapter 3. INSTALLATION AND WIRING Flange type Use a flange that has a large area of contact with the gasket. Good Flange Flange (Leak may occur because contact area with gasket surface is Welded part Welded part small.) Welded part Pipe Pipe Flange connection...
  • Page 20 Chapter 3. INSTALLATION AND WIRING Handling Precautions • Tighten bolts uniformly. If leakage does not stop after the bolts have been tightened, tighten them further little by little. • Tighten bolts to the specified torque. Doing otherwise may result in damage. •...

  • Page 21: X84; Wiring

    Chapter 3. INSTALLATION AND WIRING Wiring „ CAUTION Be sure the load connected to the output terminals does not exceed the rated values given in the specifications. An excessive load can damage this device. After wiring and before turning the power on, be sure to check that the wiring, the polarity of the power, etc., are correct.
  • Page 22 Chapter 3. INSTALLATION AND WIRING Terminal arrangement POWER AC S.G. WARNING Terminal No. Signal name Description 4–20 mA instantaneous flow rate output (+) I− 4–20 mA instantaneous flow rate output (−) Instantaneous flow rate high limit Event 2 output Self-diagnostic output Event output common RS-485 communications RS-485 communications...
  • Page 23 Chapter 3. INSTALLATION AND WIRING Treatment on wiring connection port There are two methods of running the wires from the device. • If a waterproof gland is used, the outer diameter of the cable should be 6 to 12 mm. •...
  • Page 24 -MEMO-...

  • Page 25: Chapter 4. Operation

    Chapter 4. OPERATION Flow rate indication „ Details of the display vary depending on the function settings. With the default settings, the upper 5-digit LCD display shows the instantaneous flow rate and the lower 9-digit LCD display shows the totalized amount of flow. Temperature and pressure indication „...

  • Page 26: X84; Function Setup Item List

    Chapter 4. OPERATION (3) Pressing the key moves the function number forward by one, and pressing key moves it backward by one. While S-32 is displayed, pressing the key again returns the display to S-0 1. While S-0 1 is displayed, pressing key moves the display to S-32.
  • Page 27 Chapter 4. OPERATION Function No. Function Setting Description Default Notes Low flow cutoff Disable low flow cutoff is the maximum value in the S- 12 flow rate range. × (1/1280) × (1/320) × (1/160) Pulse weight 10 L/pulse Used for setting totalizer pulse S- 14 output 1 (P1).

  • Page 28: X84; Parameter Setup

    Chapter 4. OPERATION Parameter setup „ To set up parameters, the function settings must meet the conditions for parameter setup. (1) Be sure that S-0 1 is set to 00 (keylock off). MODE (2) Press the key and key for 3 seconds or longer to change to parameter setup mode.

  • Page 29: X84; Parameter Setup Table

    Chapter 4. OPERATION Handling Precautions MODE • If the key is pressed in step (2) to (5), or (11), display of the instantaneous flow rate resumes. Parameter setup table „ Parameter Item Default setting Setting range Notes Instantaneous flow 160 (CML050) 0 to 9999 m /h Sets the instantaneous flow rate high limit event.
  • Page 30 P-08: The gas conversion factor is set if a gas other than standard compatible gases is used. In this case, please contact the azbil Group for instructions. P- 1 1: If this setting is changed, the maximum measurement range and the flow rate display range will change from the default ranges, which have a reference temperature of 0°C, to ranges that have been converted for the temperature set...
  • Page 31 Chapter 4. OPERATION P- 12: This setting is valid if S-04 (event 2) is set to “0 1: Pressure drop event. ” If the pressure falls below the setpoint, the event turns ON. Then, if the pressure reaches the low limit or exceeds it, the event turns OFF. P- 15: This setting is valid if S- 15 (burnout) is set to “0 1: Upscale”.
  • Page 32 -MEMO-...

  • Page 33: Chapter 5. Troubleshooting

    *2. If the instantaneous flow rate is negative when E27 or E28 is displayed, the flow direction may have reversed. Check the flow direction. If the flow direction is correct, there is a problem with a sensor. Contact the azbil Group and ask for repair.
  • Page 34 -MEMO-...

  • Page 35: Chapter 6. Specifications

    Chapter 6. SPECIFICATIONS Specifications „ Description Item CML050 CML080 CML100 CML150 Compatible gases Air/nitrogen, city gas 13A (LNG* ), propane,* carbon dioxide, oxygen, butane,* and argon Note: The gas must not contain corrosive components (chlorine, sulfur, or acid). Flow rate range (for air/ 160 m /h (normal) 400 m...
  • Page 36 *2. If propane is selected, calibration is based on a reference gas of 98% propane and 2% isobutane. Propane with a different composition may require a change in the default settings. In this case, please contact the azbil Group. *3. In the case of butane, calibration is based on a reference gas of 98% butane and 2% propane. Butane with a different...

  • Page 37: X84; External Dimensions

    Chapter 6. SPECIFICATIONS External dimensions „ Unit: mm • • CML050 CML080 Note: The drawing on the left shows three waterproof glands attached to the wiring ports. • • CML100 CML150 Note: The drawing on the left shows three waterproof Note: The drawing on the left shows three waterproof glands attached to the wiring ports.

  • Page 38: X84; Pressure Loss (Flow Rate And Pressure Loss Characteristics)

    Chapter 6. SPECIFICATIONS Pressure loss (flow rate and pressure loss characteristics) „ With built-in filters on both the upstream and downstream sides The graphs below show the data for air. Primary pressure 50 kPaG Primary pressure 300 kPaG 1000 1400 1600 1800 2000...
  • Page 39 Chapter 6. SPECIFICATIONS With a built-in filter on the upstream side only The graphs below show the data for air. Primary pressure 50 kPaG Primary pressure 300 kPaG 1000 1400 1600 1800 2000 1000 1400 1600 1800 2000 1200 1200 Flow rate m /h (normal) Flow rate m...
  • Page 40 Chapter 6. SPECIFICATIONS With no built-in filter on the upstream or downstream side The graphs below show the data for air. Primary pressure 50 kPaG Primary pressure 300 kPaG 1000 1200 1400 1600 1800 2000 1000 1200 1400 1600 1800 2000 Flow rate m /h (normal)

  • Page 41: X84; Filters

    Chapter 6. SPECIFICATIONS Filters „ FC filter (manufactured by Azbil Kimmon Co., Ltd.) Unit: mm • 4-19 Note Note: Clearance for maintenance: at least 500 • 8-19 Note Note: Clearance for maintenance: at least 500 • 100A 8-19 Note Note: Clearance for maintenance: at least 500 •...
  • Page 42 Chapter 6. SPECIFICATIONS Filter element for FC filters (manufactured by Azbil Corporation) Unit: mm 80394037-001 (50A) Perforated metal ø ø (162) 80394038-001 (80A) Perforated metal ø ø (202) 80394039-001 (100A) Perforated metal ø ø (244) 80394040-001 (150A) Perforated metal ø...
  • Page 43 Chapter 6. SPECIFICATIONS FDSNC filter (manufactured by Azbil Kimmon Co., Ltd.) Unit: mm ø242 Flow direction ø267.5 Flow direction 100A ø319 Flow direction 150A ø406.4 Flow direction...
  • Page 44 Chapter 6. SPECIFICATIONS MFF 300-L type Unit: mm 50A-JIS10K.SO.RF 80A-JIS10K.FF (SS400) (SS400) 50A-JIS10K.SO.RF 80A-JIS10K.FF (SS400) (SS400) Mass: approx. 21 kg Mass: approx. 42 kg 100A 150A 100A-JIS10K.FF 150A-JIS10K.SO.RF (SS400) (SS400) 150A-JIS10K.SO.FF 100A-JIS10K.SO.RF (SS400) (SS400) Mass: approx. 47 kg Mass: approx. 90 kg MFF 300-Y type 80A-JIS10K.SO.RF 50A-JIS10K.SO.RF...
  • Page 45 Revision History of CP-SP-1161E Date Rev. Revised pages Description Feb. 2004 Overall revision. Mar. 2006 Overall revision. 3rd ed = 19th Jp ed. Nov. 2008 Apr. 2012 Company name changed. Feb. 2018 Overall revision. 5th ed = 23rd Jp ed. Jun.

  • Page 46: Terms And Conditions

    1. Warranty period and warranty scope 1.1 Warranty period Azbil Corporation’s products shall be warranted for one (1) year from the date of your purchase of the said products or the delivery of the said products to a place designated by you.
  • Page 47 Azbil Corporation’s products every 5 to 10 years unless otherwise specified in specifications or instruction manuals.
  • Page 48 Specifications are subject to change without notice. (11) 1-12-2 Kawana, Fujisawa Kanagawa 251-8522 Japan https://www.azbil.com 1st edition: Feb. 2004 (X) 6th edition: Jun. 2020 (K)

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