Azbil CML 050 Manuel utilisateur

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.

No. CP-SP-1161E

CML 050/080/100/150

High-Flow Mass Flow Meter

User's Manual

NOTICE

Be sure that the user receives this manual before the product is used.

Copying or duplicating this user’s manual in part or in whole is forbidden.

The information and specifications in this manual are subject to change

without notice.

Considerable effort has been made to ensure that this manual is free from

inaccuracies and omissions. 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.

“Natural gas” in this document refers to city gas in Japan.

NOTICE

The µF™is a trademark of Azbil Corporation in Japan.

is a trademark Azbil Corporation.

 The safety precautions explained in the following section aim to prevent injury to the operator and others, and to

prevent property damage.

WARNING Warnings are indicated when mishandling this

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

physical damage to the product.

 In describing the product, this manual uses the icons and conventions listed below.

Use caution when handling the product.

The indicated action is prohibited.

Always follow the indicated instructions.

Handling Precautions:

Handling Precautions indicate items that the user should pay attention to when handling

the CML.

Note:Notes indicate information that might benefit the user.

This indicates the item or page that the user is requested to refer to.

(1) (2) (3): Numbers within parentheses indicate steps in a sequence or parts of an explanation.

S-02 This indicates 7-segment indication on the setup display.

MODE

key This indicates a key on the display.

Conventions Used in This Manual

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.

Do not use this device or the connected pipes as a step. Doing so can damage the device or

pipes, and if you lose your footing you could be injured.

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 mount with the display facing down. Doing so might cause measurement error or

device failure.

Do not flush out the pipes with this device installed. If foreign matter enters the device, it

may give faulty measurements or break down.

To prevent leakage from the pipes, tighten bolts to the specified torque.

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. Incorrect wiring can cause malfunction or damage.

Be sure that the operating gas temperature does not fall to −25°C. At −25°C and below, the

O-ring may crack, allowing gas to leak out.

After the piping work is complete, remove the temporary support brackets. Otherwise

someone might bump into them and be injured.

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.

If the flow rate exceeds the high limit, both the flow rate display and the output voltage/

current may indicate considerably lower values than the actual flow rate.

If loss or damage could result from the abnormal functioning of this device, include

appropriate redundancy in the system design.

Safety Precautions

iii

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. Handle the CML and its accessories with care to prevent damage or loss

of parts. If there is any problem with your order, please contact your dealer immediately.

Name Model No. Q’ty Remarks

Flowmeter CML _ _ _ _ 1 See Model selection table (P.1-2)

User’s Manual CP-SP-1161E 1 This manual

Fuse 250 V 3 A 1 This is a replacement part. (A fuse has already

been installed in the terminal box fuse

holder.)

Waterproof gland 2 Used for the wiring ports.

Inspection report 1 A report on the results of inspection of this

device

Unpacking

Contents

Conventions Used in This Manual

Safety Precautions

Unpacking

Chapter 1. OVERVIEW 1-1

 Overview 1-1

 Features 1-1

 System configuration example 1-1

 Model selection table 1-2

 Gas types and flow rate ranges 1-2

Chapter 2. NAMES AND FUNCTIONS OF PARTS 2-1

Chapter 3. INSTALLATION AND WIRING 3-1

 Installation location 3-2

 Behavior when the flow rate greatly exceeds the measurement range 3-3

 Notes on piping 3-3

 Pipe installation 3-8

 Wiring 3-11

Chapter 4. OPERATION 4-1

 Flow rate indication 4-1

 Temperature and pressure indication 4-1

 Totalized flow display and totalized count reset function 4-1

 How to set up functions 4-1

 Function setup item list 4-2

 Parameter setup 4-4

 Parameter setup table 4-5

Chapter 5. TROUBLESHOOTING 5-1

Chapter 6. SPECIFICATIONS 6-1

 Specifications 6-1

 External dimensions 6-3

 Pressure loss (flow rate and pressure loss characteristics) 6-4

 Filters 6-7

Terms and Conditions

1-1

 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. Since expensive temperature and pressure compensation

equipment is not required, substantial cost reduction is possible.

• The CML incorporates μF sensors made with silicon micromachining and thin-

film technology. Each of the μF sensor's sides is only 1.7 mm long, and it is just

0.5 mm thick. Four of these highly sensitive and fast-responding flow speed

sensors are built into the flowmeter.

• To cover high and low flow rate ranges, two sensors of each type are mounted 90˚

apart on the wall of the gas flow path. By switching alternately the sensor groups

according to the flow rate range, the CML can achieve high accuracy (±2 % rdg.

at 5 % FS or more in the measurement range) and high rangeability (160:1 for all

models) in flow rate measurement.

• To meet a variety of requirements, the CML's functions include an LCD display,

analog output (4–20 mA), display of totalized flow, totalized pulse output

(open collector), and instantaneous flow alarm output. In addition, since a

communication function is a standard feature, dramatic cost reduction in

instrumentation is possible when data is transferred to the host system.

• Thanks to built-in photoelectric touch sensors, settings can be changed without

opening the case.

• A flow rectifying mechanism is built into the flow path of the device, allowing

shorter straight pipe sections. Even if this device is mounted downstream from an

elbow, it can be used without a straight pipe section.

 System configuration example

LOADER

power

HOST CMC CMC LOCAL

CMCADDRESS

HOST CMC

B.RATE

ERR

RESET

CMC10

CMC10G

PLC from 3rd-party mfr.

Smart Terminal

(EST-Z, etc.)

Pulse counter

(PCG13)

PLC etc.

Pulse output

Event output

4–20 mA instantaneous

ow rate output

Controller

(SDC, etc.)

Slave station (CML, etc.)

RS-485 communications

Chapter 1. OVERVIEW

1-2

Chapter 1. OVERVIEW

 Model selection table

Basic

model

No.

Pipe

size Model

Gas-

contacting

material

Connection

method

Gas

type Output Power

source Communication Mounting

orientation

Option

Suffix Description

1 2

CML High-flow mass flow meter

050 50 A (2B)

080 80A (3B)

100 100 A (4B)

150 150 A (6B)

0 Operating pressure range: 0 to

less than 1 MPa

S Material of major parts:

SUS304/SCS13

J JIS 10K RF flange

N Air/nitrogen (The setting

can be changed to another

standard compatible gas.*1)

S Oxygen*3

0 4–20 mA output + totalized

pulse output

F Flexible, from 85 to 264 V AC

(50/60 Hz)

1 RS-485 communications

0 Horizontal (flow direction: left

to right)*2

1 Horizontal (flow direction: right

to left)*2

2 Vertical (flow direction:

upward)*2

3 Vertical (flow direction:

downward)*2

0 None

*1. Standard compatible gases are air/nitrogen, natural gas 13 A (LNG), argon, butane, propane,

and carbon dioxide (CO2). The setting can be changed using the display panel keys.

*2. Specify when ordering. The selection cannot be changed after delivery.

*3. If gas type S is selected, be sure to specify 1 (degreasing) for option 1.

1 Degreasing for gas-contacting

parts

D With inspection report

Y Inspection report + traceability

certificate

K Inspection report + traceability

certificate + calibration report

0 Product version

 Gas types and flow rate ranges

Gas type Gas type

setting S-08

Flow range [m

/h (normal)]

CML050 CML080 CML100 CML150

Air/Nitrogen 00 0 to 160 0 to 400 0 to 650 0 to 1600

Oxygen 01*10 to 160 0 to 400 0 to 650 0 to 1600

Carbon dioxide (CO2) 02 0 to 120 0 to 300 0 to 480 0 to 1200

Argon 03 0 to 160 0 to 400 0 to 650 0 to 1600

Natural gas13A (46MJ)*204 0 to 160 0 to 400 0 to 650 0 to 1600

Butane*205 0 to 50 0 to 120 0 to 190 0 to 480

Propane*206 0 to 60 0 to 140 0 to 220 0 to 500

Natural gas13A (45MJ)*209 0 to 160 0 to 400 0 to 650 0 to 1600

*1. “01: Oxygen” can be selected only for oxygen models.

*2. Chapter 6. SPECIFICATIONS. (P.6-2)

2-1

Instantaneous flow rate display: 5 digits (m3/h)

Totalized flow display: 9 digits (m3)

Unit of pressure

Keys

Eyebolt

Built-in filter

Used to protect the device.

Ordinarily it should not be

removed.

Event LEDs

EV1, EV2: Lit when event output turns on

EV3: Lit when self-diagnostic output is generated.

MODE key: Used for setting parameters

↑and ↓keys: Used for changing parameter values or switching

the display between temperature and pressure

ENT key: Used for confirming and saving settings

Terminal box

Used for wiring for power, instanta-

neous flow rate output, totalizer pulse

output, event output, and totalized

flow reset input.

Wiring port

(with waterproof gland)

Display and keys

Used for display of instantaneous

flow rate, totalized flow, alarm

status, and errors, and for setup of

this device.

Eyebolt

Used for hanging this device from

an overhead crane or the like

during installation in the piping.

After pipes are connected, remove

the eyebolts.

Downstream side

of the flow

Flange

JIS 10K RF flange

Connected to the

piping.

Upstream side

of the flow

Overturn prevention brackets

Used when this device is

temporarily placed on the ground.

Remove them after installation in

the piping.

Note: There are three wiring ports. Only one waterproof gland is attached before shipment, to the top port. The other two

waterproof glands are included with the CML. The figure shows the flowmeter when all three glands are attached to

the wiring ports.

Chapter 2. NAMES AND FUNCTIONS OF PARTS

-MEMO-

Ce manuel convient aux modèles suivants

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