Category: ABB

Pneumatics

An I/P module with subsequent pneumatic amplifier is used

to control the pneumatic actuator. The well-proven I/P

module proportionally converts the permanent electrical

setpoint signal from the CPU into a pneumatic signal used to

adjust a 3/3-way valve.

Dosing of the air flow for pressurizing or depressurizing the

actuator is continuously adjusted. As a result, excellent

control results are achieved. When reaching the setpoint, the

3/3-way valve is closed in center position to minimize the air

consumption.

The pneumatic system can be supplied in four versions: for

single acting and double acting actuators and each with the

‘fail-safe’ / ‘fail-freeze’ safety function.

‘Fail-safe’ safety function

If the electric power supply fails, the positioner output 1 is

depressurized and the return spring in the pneumatic

actuator moves the valve to the safe position. In case of a

‘double-acting’ version, output 2 is additionally pressurized.

Brief description

The TZIDC-220 is an electronically configurable positioner

with communication capabilities designed for mounting on

pneumatic linear or rotary actuators. It features a small and

compact design, a modular construction, and an excellent

cost-performance ratio.

Fully automatic determination of the control parameters and

adaptation to the positioner allow for considerable time

savings as well as optimum control behavior.

‘Fail-safe’ safety function

If the electric power supply fails, the positioner output 1 is

depressurized and the return spring in the pneumatic

actuator moves the valve to the safe position. In case of a

‘double-acting’ version, output 2 is additionally pressurized.

‘Fail-freeze’ function

If the electric power supply fails, the positioner Output 1

(and Output 2 if applicable) is closed and the pneumatic

actuator blocks the valve in the current position. If the

compressed air supply power fails, the positioner

depressurizes the actuator.

Brief description

The PositionMaster EDP300 is an electronically configurable

positioner with communication capabilities designed for

mounting on pneumatic linear or rotary actuators. It features

a small and compact design, a modular construction, and an

excellent cost-performance ratio.

Fully automatic determination of the control parameters and

adaptation to the positioner allow for considerable time

savings as well as optimum control behavior.

Pneumatics

An I/P module with subsequent pneumatic amplifier is used

to control the pneumatic actuator. The well-proven I/P

module proportionally converts the permanent electrical

setpoint signal from the CPU into a pneumatic signal used to

adjust a 3/3-way valve.

Dosing of the air flow for pressurizing or depressurizing the

actuator is continuously adjusted. As a result, excellent

control results are achieved. When reaching the setpoint, the

3/3-way valve is closed in center position to minimize the air

consumption.

The pneumatic system can be supplied in four versions: for

single acting and double acting actuators and each with the

‘fail-safe’ / ‘fail-freeze’ safety function.

‘Fail-safe’ safety function

If the electric power supply fails, the positioner output 1 is

depressurized and the return spring in the pneumatic

actuator moves the valve to the safe position. In case of a

‘double-acting’ version, output 2 is additionally pressurized.

‘Fail-freeze’ function

If the electric power supply fails, the positioner Output 1

(and Output 2 if applicable) is closed and the pneumatic

actuator blocks the valve in the current position. If the

compressed air supply power fails, the positioner

depressurizes the actuator.

Diagnosis parameters

The diagnostics parameters in the positioner’s operating

program provide information about the operating conditions

of the valve.

From this information the operator can derive what

maintenance work is required, and when.

Additionally, limit values can be defined for these parameters.

When they are exceeded, an alarm is reported.

So, for example, the following operating values are

determined:

• Number of movements of the final control element

• Sum of individual actuator travel events

The diagnostic parameters and limit values can be called up,

set and reset using the configuration program.

Operator panel

The integrated operating panel of the positioner has four

operating buttons which allow the device to be operated with

an open housing cover. The following functions can be

controlled via the function keys:

• Observe live operation

• Manual intervention during live operation

• Parameterization of the device

• Fully automatic commissioning

Device parameters

Operations monitoring parameters

Various functions for continuous device monitoring are

implemented in the operating program for the positioner.

The following states will be detected and indicated, e.g.:

• Internal positioning time-out

• Sensor monitoring

• Backup monitoring

While automatic commissioning is in progress, the current

state is continuously indicated on the integrated LCD

indicator. Remaining messages can be retrieved via the user

interface.

The fieldbus enables users to implement enhanced

monitoring in the control system. A special window displays

the most important process variables ONLINE, e.g. the

setpoint signal (in %), the position (in %), the control

deviation (in %) as well as the status messages.

Pneumatics

An I/P module with subsequent pneumatic amplifier is used

to control the pneumatic actuator. The well-proven I/P

module proportionally converts the permanent electrical

setpoint signal from the CPU into a pneumatic signal used to

adjust a 3/3-way valve.

Dosing of the air flow for pressurizing or depressurizing the

actuator is continuously adjusted. As a result, excellent

control results are achieved. When reaching the setpoint, the

3/3-way valve is closed in center position to minimize the air

consumption.

The pneumatic system can be supplied in four versions: for

single acting and double acting actuators and each with the

‘fail-safe’ / ‘fail-freeze’ safety function.

‘Fail-safe’ safety function

If the electric power supply fails, the positioner output 1 is

depressurized and the return spring in the pneumatic

actuator moves the valve to the safe position. In case of a

‘double-acting’ version, output 2 is additionally pressurized.

‘Fail-freeze’ function

If the electric power supply fails, the positioner Output 1

(and Output 2 if applicable) is closed and the pneumatic

actuator blocks the valve in the current position. If the

compressed air supply power fails, the positioner

depressurizes the actuator.

Brief description

The TZIDC-110 is an electronically configurable positioner

with communication capabilities designed for mounting on

pneumatic linear or rotary actuators. It features a small and

compact design, a modular construction, and an excellent

cost-performance ratio.

Fully automatic determination of the control parameters and

adaptation to the positioner allow for considerable time

savings as well as optimum control behavior.

Communication

Communication with the TZIDC-110 occurs via PROFIBUS PA®.

Modular design

The basic model can be enhanced at any time by retrofitting

optional equipment.

Option modules can be installed for analog and digital

position feedback.

Additionally, a mechanical position indicator, proximity

switches or 24 V microswitches are available for indicating

the position independently of the mother board function.

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Measurement made easy

Robust and reliable glass tube variable area flowmeter

—

Function

• Glass tube variable area flowmeter for the measurement

of clear liquids and gases

—

Areas of application

• Suited for flow measurements in many industrial sectors

such as apparatus engineering, the food and beverage

industry, water treatment systems and the chemicals sector

—

Product highlights

• Precision tubes with guide surfaces, guide ribs or guiderod

• Standard stainless steel housing

• Easy disassembly of the meter tube due to the O-ring seal

• Meter tube and float can be replaced independently of each other

—

Important product features

• A magnetically actuated alarm signaling unit size ½ in and

up can be attached to the flowmeter

Functional description

The VA Master FGM1190 series flowmeters work according to

the float principle.

The position of the float in the conical glass meter tube is

proportional to the flow. It can be read on the scale fitted to

the meter tube.

Four different types of scale can be used:

• Directly readable scale in flow units

• Percentage scale

• DK/DS scale

• Millimeter scale

When using the DK/DS scale a flow rate table is available for

the flowmeter. For other operating conditions, the user can

create additional tables.

Flowmeters in sizes ½ in to 2 in are provided with a

percentage scale in the standard design. The device has a

factory plate indicating the flow rate for the display of 100 %.

The other scale values can be linearly converted. A special

reading curve is therefore not required.

On request, conversion equations for flow calculation for

other operating conditions will be made available.

Proven in millions of applications

Simplicity

ABB’s VA meters are still popular for many flow applications

after all these years. Why?

• They are pre-calibrated before they leave the factory

• Once delivered they are very easy to install

• Maintenance is very simple due to their excellent design

• ABB’s VA meters have common parts minimizing

stocking requirements

Cost effectiveness

Many are discovering that ABB VA meters provide

cost-effective flow measurement for many of their

applications. Why?

• All ABB VA meters are low cost compared to other

flow measurement devices

• In addition they have very low installation costs;

no upstream/downstream straight piping requirements

• Plus their reliability combines for an extremely low

cost of ownership

• Long life expectancy also brings low life-cycle cost

Reliability

There are many ABB VA meters still operating after

30. 40 and even 50 years or more. Why?

• ABB’s VA meters are renowned for being the highest

quality available

• They last longer, with millions installed since 1937.

when Fischer & Porter launched their first variable

area flowmeter

• Our trouble-free operation ensures years of accurate

flow measurement

excellent repeatability yields consistent products

Flexibility

ABB’s VA meters are found in almost every application

and industry, with millions sold over the years. Why?

• ABB’s VA meters can be used to measure a wide variety

of liquids, gases and steam

• They require no power and can be used anywhere

• ABB’s VA meters are easily converted to measure

different fluids and capacities

• They are available with alarms, transmitted output

and even HArT communications

Cost effectiveness

Many are discovering that ABB VA meters provide

cost-effective flow measurement for many of their

applications. Why?

• All ABB VA meters are low cost compared to other

flow measurement devices

• In addition they have very low installation costs;

no upstream/downstream straight piping requirements

• Plus their reliability combines for an extremely low

cost of ownership

• Long life expectancy also brings low life-cycle cost