SSS Siedle TE 100, TE 200 Instruction Manual

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I/P

I/PI/P

I/P CONVERTER

CONVERTERCONVERTER

CONVERTER

INSTRUCTION

INSTRUCTIONINSTRUCTION

INSTRUCTION MANUAL

MANUALMANUAL

MANUAL

(E)IM-TE100/00-R５

Safety Precautions

Always read these instructions before using the I/P converter .

！ WARNING：Indicates instructions that, if not followed correctly, “may lead to death

or serious injury”.

！ Warnings

■ Install the flame-proof version in compliance with the “New Guidelines for Industrial

Electrical Equipment Explosion-Proofing 1979” issued by the Industrial Safety Institute of

the Ministry of Labor and in accordance with “technical procedures that comply with

international standards”.

■The flame-proof version and Intrinsically Safe version and Nonincendive may not be installed

or used for hazardous applications using gases other than those applicable to the

explosion-proofing grade of the I/P converter.

■ Perform adjustment (zero and span adjustment) of the flame-proof version in a

non-hazardous environment or after making the environment non-hazardous.

■Always turn off the power before removing the terminal box cover or main cover.

■If intending to remove or disassemble the pressure gauge for maintenance or other purposes,

always turn off the supply pressure and wait for the pressure in the pneumatic circuit to drop

to zero before undoing any screws or other fittings used to attach parts.

■Always turn off the supply pressure before switching between auto and manual or replacing

the pilot relay unit.

！ CAUTION：Indicates instructions that, if not followed correctly, “may cause a fault

or other physical damage”.

！ Cautions

■Fit the I/P converter in the orientation shown in section 3.2

■As drain fluid or dirt in the supply pressure line may block the fixed orifice or cause

misoperation, fit a 5[micro]m or finer air filter (such as an SSS Mini-Set filter) and use a

dryer or similar to ensure a clean air supply.

■Using a lubricator on the supply side may cause a blockage in the fixed orifice or nozzle.

Never use a lubricator with this I/Pconverter.

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－ Table of Contents －

1．Usage 1－1

1－1 Check the I/P Converter Specifications 1－1

1－2 Transport 1－1

1－3 Storage Precautions 1－1

1－4 Install Location 1－1

2．Overview 2－1

2－1 Features 2－1

2－2 Principle of Operation 2－2

2－3 Specifications 2－3

2－4 Model Codes 2－3

2－5 Dimensions 2－4

2－6 Name of Parts 2－5

3．Design and Installation 3－1

3－1 Design 3－1

3－1－1 Flame-Proof Version 3－1

3－1－2 Intrinsically Safe Version 3－1

3－1－3 Nonincendive Version 3－1

3－2 Installation 3－2

3－2－1 Pipe Mounting 3－2

3－2－2 Wall Mounting 3－2

3－3 Pneumatic and Electrical Installation 3－2

3－3－1 Pneumatic Installation 3－2

3－3－2 Electrical Installation 3－3

（1）Flame-Proof Version 3－3，4

（2）Standard (Non-Explosion-proof)/Intrinsically Safe version 3－5

4．Operation 4－1

4－1 Auto/Manual Switchover Function(option) 4－1

4－2 Zero and Span Adjustment 4－2，3

4－3 Width of Range Adjustment 4－3

5．Maintenance 5－1

5－1 Maintenance of Flame -Proof Models 5－1

5－2 Periodic Inspection 5－1

5－3 Replacing the pilot Relay Unit 5－2

5－4 Replacement Parts 5－2

6．Troubleshooting 6－1

0－1

1

Usage

1-1

Check the I/P converter Specifications

On receiving the I/P converter , check that the information on the nameplate on the front

of the I/P converter matches what you ordered and confirm that the model code is correct.

1-2

Transport

To prevent damage during transport, leave the I/P converter in its packing until ready to

install and use.

1-3

Storage Precautions

Store the I/P converter in a location that satisfies the following criteria.

●Not subject to rain or moisture

●Not subject to shock or other impact

●Normal room temperature and humidity

1-4

Install Location

To maintain the working life and performance of the transducer, observe the following

precautions when using the I/P converter.

(1) Ambient temperature

If using in a location subject to heat radiation or large variations in temperature, consider

fitting thermal insulation.

(2) Atmosphere

Try to select a well-ventilated location and avoid corrosive atmospheres.

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2

Overview

The TE100 and TE200 I/P converters convert an electrical signal (4 to 20mA DC) output

from a controller or similar to a pneumatic pressure. The I/P converters feature a compact

design and high accuracy, making them suitable for adjuster valve and similar

instrumentation applications.

2-1

Features

◆2-1 Features

Ultra light-weight, compact design at 1.6kg (1.8 kg with reducing valve fitted), the I/P

Converters are significantly lighter than previous models. This makes them easy to use.

◆High accuracy

The I/P Converters use a high-accuracy sensor and the latest technology to achieve a high

level of conversion accuracy.

◆Built-in reducing valve

A model is available that incorporates a small dedicated reducing value (Mini-Set XR100).

This eliminates the need for pneumatic supply piping.

◆Optimum mounting

Both pipe mounting and wall mounting are available by well designed bracket.

These enable the I/P Converters to be used in locations where space is limited.

◆100 and 200 series models are available

Both 100 series (with terminal box) and 200 series (no terminal box) models are available,

allowing you to select a model that best suits

2－1

2-2

Principle of Operation

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Transducer Operation Schematic

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As shown in the above schematic, the operation of the I/P Converter is controlled by

applying a 4 to 20mA DC signal to the input which causes the internal circuit to generate a

voltage. A drive current is also supplied to the torque motor which represents the circuit

load to operate the overall system. If the level of the input signal increases, the current to

the torque motor [1] increases and the flapper [2] moves so as to cover the nozzle [3] and

raise the pressure in the pilot relay (pneumatic valve) nozzle back-pressure chamber [4].

The increased nozzle back-pressure causes a displacement in the diaphragm assembly [5]

in the pilot relay, opening the port’s [6] inlet valve seat [7]. This increases the output air

pressure from the pilot relay. The output air pressure is also applied to the solid state

sensor [8] and converted into an electrical signal proportional to the pressure. This

electrical signal is then returned to the control circuit where it is used as a feedback signal.

The control circuit compares the sensor signal against the input signal to control the output

air pressure to match the input signal.

2－2