Even strength within specifications and across the reel width

L&W ZD Tensile Tester measures internal bond strength – or Z-direction (ZD)

tensile forces – of paper and multi-layered paper products, such as linerboard

and box board. The tester uses an automated method and you obtain fast

and reliable measurement values, which make it possible to achieve uniform

strength across the reel width. All in compliance with customer specifications,

as well as in accordance with applicable standards (ISO, TAPPI, SCAN).

Full control of the internal bond strength, is particularly important in the

production of multi-layered paper products. Low or unevenly distributed

internal bond strength can cause material splitting in an offset press with

sticky printing ink. In the creasing or scoring operation of boxboard the

material should delaminate “just enough”. Otherwise after folding there

will be poor folding lines or cracks in the outer layer. Internal bond strength

tests can predict this.

Enough internal bond strength is also needed in heat-set web offset printing

of highly coated paper. Otherwise blistering will occur when moisture will try

to escape during the heating process. Too high internal bond strength impedes

the creasing of the boxboard and high values also mean a waste of raw material

and energy. In other words, the aim is to achieve an even strength within

specifications and across the reel width. L&W ZD Tensile Tester can achieve this.

The ZDT Oxygen Analyzer is designed for continuous

monitoring of oxygen content in applications using ‘in situ’

ZGP2 probes.

Operation and programming of the ZDT Analyzer is via four

tactile membrane switches and a digital display located on the

front of the instrument. Two l.e.d.’s on the front panel provide

local alarm indication.

In operation, the instrument can display measured % oxygen,

cell mV, or cell temperature. Set up of alarm, retransmission

and calibation parameters is achieved in programming mode,

where key parameters are protected by a five-digit security

code.

Measured %O2 values can be retransmitted to remote

equipment using the retransmission output facility. The range

of values retransmitted can be set anywhere within the

instrument’s display range of 0 to 25% O2. subject to limits

detailed in Section 7.7.

Remote alarm indication is provided by two relay outputs.

Relays are programmed to activate when the oxygen level

moves either above or below a pre-defined set point. The

second alarm relay can also be used as a ‘general alarm’

which activates in the event of an instrument or system fault.

An optional external reference air unit is used to provide

reference air supply for the ZGP2 probe. If this unit is not

specified, reference air must be supplied to the probe from an

alternative source.

For full installation and operation details of the ZGP2 probe

refer to the operating manual, IM/ZGP2.

‘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.

Use

The positioner has a built-in operating panel providing a 2

line LCD indicator and 4 operating buttons for

commissioning, configuration and monitoring during live

operation.

Alternatively, the appropriate configuration program can be

used via the available communication interface.

Communication

The positioner has a local communication interface (LCI) as

standard. Additionally, a ‘HART® communication’ option for

communication via the 20 mA signal is available. Both

communications are based on the HART® Protocol.

Alternatively, HART®5 or HART®7 are available.

Inputs / Outputs

In addition to its input for the analog position setpoint, the

positioner is equipped with a digital input which can be used

to activate control system functions in the device. A digital

output allows you to output collective messages (alarms /

faults).

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.

Brief description

The TZIDC 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.

For ABB, the customer has always been the key focus of the

process chain. Therefore we would like to go a step further

in the Actuators & Positioners product line and show our

customers new possibilities within the scope of our OEM

Labeling Program that could possibly inspire them with

new ideas and incentives.

Our positioner portfolio features many different

product-related possibilities as a part of our OEM Labeling

Program. By this we understand and distinguish to and make

a distinction between ‘Labeling light’ and ‘Full labeling’.

In this brochure, we will present the different possibilities

available based on examples for the TZIDC, TZIDC-110.

TZIDC-120. EDP300 and TEIP11 types. The ‘light’ OEM

Labeling Program includes two components which the

customer can freely configure:

•  Color

•  Naming

COLOR

The customer can choose any color from the RAL color palette.

By providing the RAL color number, any misunderstandings

and interpretations are excluded, since the coding corre

sponds to an international standardized color tone.

Color requests beyond the RAL palette are also an option.

We will be happy to try to fill such requests in cooperation

with our suppliers. Feel free to contact us in this regard. The

customized color requests always apply to the cover for the

TEIP11. For the TZIDC, they apply to the bottom and top

parts of the housing.

For the TEIP11. the bottom parts of the housing are always

in the black color and coating system. Due to certification

specifications, we unfortunately cannot implement different

color requests on the bottom parts of the housing.

For the EDP300. the color implementation involves applying

print in a RAL color near the label names on the HMI. See the

examples below.

The solution – accurate measurements for

maximum energy efficiency

Thanks to an (innovative control algorithm taken

from the field of robotics, the EDP300 positioner

stands out thanks to its speed and accuracy.

Overshooting and slow recovery times are both

prevented, allowing the EDP300 to significantly

optimize compressed air consumption, energy

efficiency and the ʹecological footprintʹ of pneu

matic control circuits.

Subsequently, the EDP300 is able to help reduce

cost with its unique electro-pneumatic system,

providing unsurpassed low air/gas consumption

at steady state. The EDP300 can also be used in

applications with natural gas as the supply energy,

eliminating the need for compressed instrument

air. ABB is the only supplier able to offer customers

a premium positioner that features these pneu

matic properties.

The EDP300 digital positioner feature a high air capacity of 50 kg/h

(23 scfm) at 10 bar (145 psi) and is equipped with advanced

pressure-based diagnostic functions.

Why are they used?

Compliance to environmental regulations

In any production process, it is critical to ensure

stable and constant process conditions to

achieve optimum product quality and process

efficiency. Any control equipment must be capa

ble of eliminating any variations in the process

variables that could cause the process to consume

both more energy and consumables than normal,

pushing up production costs. The stability of the

downstream control loop may also be affected,

impacting on both product quantity and quality.

With the compressed air used by valve posi

tioners being around ten times more expensive

than electricity, accurate control is essential to

minimizing plant overheads as well as eliminating

potential problems in the downstream process.

The TZIDC and EDP300 series digital positioners provide flexible

and cost-effective valve management and control. Their durability

and unmatched shock and vibration immunity up to 10 g and 80 Hz

means that they are suitable for use even under harsh conditions.

The challenge – handling over 100.000 strokes a year

Most control valves in many processes will rarely

have to move, commonly enabling operators to opt

for positioners with lifetimes of less than 100.000

strokes. However, there are some applications

where valves will need to handle frequent changes

in process conditions. In such applications, where

100.000 strokes may occur in a single year alone,

there is a need for a positioner that can handle

these changes with minimal need for maintenance.

The solution – unrivalled performance performing

1.000.000 strokes

The answer is ABB’s TZIDC positioner. In a four

month trial, an ABB TZIDC positioner underwent

a customer durability test which saw it perform

1.000.000 strokes without any deterioration in

performance or fault or interruption.

Offering remote communication via 4 to 20 mA

HART, PROFIBUS PA or Foundation Fieldbus,

the TZIDC sets the standard for safe and eco

nomic control of industrial processes. Its built-in

intelligence enables it to adapt itself to any

control valve at the push of a button, while a

host of service, diagnostic and safety functions,

including fail-freeze and fail-safe action, help to

provide a high level of operational performance.

The TZIDC and EDP300 is suitable for use with

linear, part-turn, and single or double-acting actu

ators and is protected to IP65/NEMA 4X, making

it ideal for harsh environments. You can rely on

the TZIDC and EDP300 to provide the highest

levels of availability, enabling you to maximize

the profitability of your process through improved

plant uptime.