Pfeiffer vacuum Mpt 100 User manual

Translation of the original instructions

Operating Instructions

PG 0017 BEN/E (1112)

MPT 100

Pirani/Cold Cathode Transmitter

Table of contents

1 About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Range of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Transport and storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.1 Vacuum connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.3 Removal of components for their maintenance . . . . . . . . . . . . . . . . . . . . 10

6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.1 Before switching on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.2 Baking out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.3 Switching on/off the CC sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.4 Selecting switching range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6.5 Configuring the data exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.6 Pfeiffer Vacuum Protocol for "RS-485" . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.7 Adjusting the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7.1 Rectifying malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8 Maintenance and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10 Technical data and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

10.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

10.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

10.3 Gas correction factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Declaration of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

About this manual

1 About this manual

1.1 Validity

This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning

of the designated product and provides the most important information for safe use of

the unit. The description follows applicable EU guidelines. All information provided in this

operating manual refer to the current state of the product's development. The documen-

tation remains valid as long as the customer does not make any changes to the product.

Up-to-date operating instructions can also be downloaded from www.pfeiffer-vacu-

um.com.

1.2 Conventions

Safety instructions The safety instructions in Pfeiffer Vacuum operating manuals are the result of risk eval-

uations and hazard analyses and are oriented on international certification standards as

specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844. In this document,

the following hazard levels and information are considered:

Pictograph

definitions

Instructions in the

text

Work instruction: here you have to do something.

Abbreviations used MPT: Digital Pirani/Cold Cathode Transmitter

CC sensor: Cold cathode sensor

NOTE

Command or note

Command to perform an action or information about properties, the disregarding of

which may result in damage to the product.

CAUTION

Possible danger

Injuries or property damages can occur.

WARNING

Possible danger

Injuries or severe property damages can occur.

Warning of a displayed source of danger in connection with

operation of the unit or equipment.

Command to perform an action or task associated with a

source of danger, the disregarding of which may result in se-

rious accidents.

Safety

2 Safety

2.1 Safety precautions

The transmitter MPT 100 has been tested and accepted in compliance with EN 61010/

VDE 0411 “Safety Equipment for Electrical Components”.

●Observe the safety and accident prevention regulations.

●Check regularly that all safety precautions are being complied with.

●The unit has been accredited with protection class IP 40. Take necessary measures

when installing into ambient conditions, which afford other protection classes.

●Consider possible reactions between the materials and the process media.

●Consider possible reactions of the process media due to the heat generated by the

product.

●Do not modify or alter the unit yourself.

●Note the shipping instructions, when returning the unit.

●Inform yourself about a possible contamination before starting work.

●Adhere to the relevant regulations and take the necessary precautions, when handling

contaminated parts.

●Communicate the safety instructions to other users.

2.2 Proper use

●Only use the MPT 100 digital transmitter for measuring total pressures in the

5 x 10-9 ... 1000 mbar range.

2.3 Improper use

Improper use will cause all claims for liability and warranties to be forfeited. Improper use

is deemed to be all use for purposes deviating from those mentioned above, especially:

●Connection to pumps or units which are not suitable for this purpose according to their

operating instructions.

●Connection to units which have exposed voltage-carrying parts.

●The operation of the devices in potentially radioactive areas.

NOTE

Duty to inform

Each person involved in the installation or operation of the unit must read and observe

the safety-related parts of these operating instuctions.

The operator is obligated to make operating personnel aware of dangers originating

from the unit or the entire system.

Product description

3 Product description

The digital transmitter MPT 100 is a two-component transmitter comprising one cold

cathode sensor and one Pirani sensor.

3.1 Product identification

To correctly identify the product when communicating with Pfeiffer Vacuum, always have

the information from the rating plate available.

Fig. 1: Product identification on the rating plate

Scope of delivery The following positions are included in the delivery consignment:

– MPT 100

– Protective cover

– Operating instructions

3.2 Function

The transmitter can be operated in conjunction with the DigiLine Controller, with the Di-

giLine Power Supply units and the WINDOWS1) based measuring software DokuStar

(please see "Accessories") on a PC or with customized, digital signal evaluation.

Communication is carried out, depending on the address selector switch setting, via the

serial RS-232 interface using the relevant display units or via RS-485 using the Pfeiffer

Vacuum protocol. The relevant bus adapters are available for connection to Profibus sys-

tems (see Accessories).

The transmitter responds to measurement value queries, type queries and setting com-

mands.

3.3 Range of application

The unit MPT 100 must be installed and operated in the following ambient conditions:

D-35641 As slar

RS 232 RS 4 8 5

Mod.:

Range:

Mod.-No.:

Ser.-No.:

24 V- 2,5 W

1) WINDOWS is a registered trademark of Microsoft Corporation.

Installation location weather protected (indoor)

Protection class IP 40

Installation altitude max. 2000 m

Ambient temperature +5°C to +50°C

Relative humidity 5 ... 85 %, non-condensing

Atmospheric pressure 86 kPa - 106 kPa

Transport and storage

4 Transport and storage

Units without external protection must not come into contact with electrostatically charge-

able materials and must not be moved within electrical or magnetic fields.

In rooms with moist or aggressive atmospheres, the unit must be airproof shrink-

wrapped in a plastic bag together with a bag of desiccant.

Keep the original protective covers.

Installation

5Installation

5.1 Vacuum connection

Mounting orientation The installation position can be freely selected. The preferred position is a horizontal to

vertical position so that condensate and particles do not penetrate the measurement

chamber.

Connecting the trans-

mitter

Remove the protective cover, which is required during maintenance work.

Make the flange connection.

– When making a CF flange connection, it can be advantageous to temporarily re-

move the magnet unit.

5.2 Electrical connection

Communication is effected, depending on the position of the address selector switch at

the transmitter, via Serial Interface RS-232 or via the RS-485 (address settable from 1-

15).

CAUTION

Vacuum component!

Dirt and damage impair the function of the vacuum component.

When handling vacuum components, ensure that they are kept clean and are protect-

ed against damage.

Ensure that the connection flange is clean, dry and free of grease.

CAUTION

Excess pressure in the vacuum system 1.5 to 4 bar

Damage to health through emission of process media, because elastomer washers

cannot withstand the pressure.

Use sealing rings with an outer centering ring.

CAUTION

Excess pressure in the vacuum system > 1 bar

Danger of injuries by inadvertent opening of elements under stress due to parts flying

around.

Only use stressed elements, which can be opened and closed with appropriate tools

(e.g. strap retainer-tension ring).

NOTE

Damage to the transmitter!

Only connect the connection cable when de-energized.

Never establish a connection to the transmitter using a live cable.

Installation

Setting the address

selection switch

Fig. 2: Setting the address selection switch

Remove the rubber plugs (not shown in the illustration) from the address selector

switch, and set the required address according to the relevant connection situation.

Connecting the trans-

mitter to the DPG 101

controller

Set the address selector switch on the transmitter to RS-232 mode (basic factory-set-

ting).

Connect the transmitter to the control unit using the connection cable.

Switch on the control unit.

Connecting the trans-

mitter to the DPG 109

controller

Up to nine transmitters in series can be conneted to the DPG 109 controller.

Fig. 3: Connections diagram transmitter-DPG

Set address selector switch S on the transmitter to RS-485 mode with the relevant ad-

dress.

Connect the transmitter to the control unit using the connection cable.

Switch on the control unit.

------------------

Vacuum

chamber

RS 232

DPG 101

Trans-

mitter

RS 485

DPG 109

5 4 3 2 1

321

Pin Assignment

1 not connected

2 RS 232, RxD

3 RS 232, TxD

4 not connected

5GND

6VDC

7 RS 485: D-

8 RS 485: D+

9 not connected

Installation

Connecting the trans-

mitter to the DPS 101

power supply

Set the address selector switch on the transmitter to RS-232 mode (basic factory-set-

ting).

Connect the transmitter to the power supply unit and to the RS-232 interface on the

PC using the connection cable.

Plug in the power supply unit.

Operate transmitter with software DokuStar (included with DPS 101).

Connecting the trans-

mitter to the DPS 109

power supply

Fig. 4: Connections diagram - DPS 101/DPS 109

Set address selector switch S on the transmitter to RS-485 mode with the relevant ad-

dress.

Connect the transmitter to the power supply unit and to the RS-232 interface on the

PC using the connection cable.

Switch on the supply voltage with switch S1 on the power supply.

Operate the transmitter using the DokuStar Plus software (optional).

Connecting the trans-

mitter to the profibus

adapter TIC 252

Fig. 5: Connections diagram transmitter - TIC 252

Set the address selector switch on the transmitter to RS-232 mode (basic factory-set-

ting).

Plug the TIC 252 into the D-Sub socket on the transmitter and secure using fixing

screws.

Connect the power supply to the TIC 252.

RS 485

RS 232

DPS 109

DPS 101

Trans-

Vacuum

chamber

mitter

acuum

chamber

TIC 252 Transmitter

Installation

Connecting the trans-

mitter to the level

converter TIC 002

Fig. 6: Connections diagram transmitter - TIC 002

Set address selector switch S on the transmitter to RS-485 mode with the relevant ad-

dress.

Connect the transmitter to the TIC 002 using the connection cable.

Connect the power supply to the TIC 002.

Connecting the trans-

mitter to the USB/RS-

485 converter

Fig. 7: Connections diagram transmitter - USB/RS-485 converter

Set address selector switch S on the transmitter to RS-485 mode with the relevant ad-

dress.

Connect the transmitter to the USB/RS-485 converter using the connection cable.

Connect the transmitter to the power supply.

5.3 Removal of components for their maintenance

Switch off the power supply on the control unit/power supply or disconnect the equip-

ment from the mains supply.

Loosen any connection cables.

Detach the transmitter from the vacuum apparatus.

Close the flange opening by using the original protective cover.

24 V DC

TIC 002

RS-232

RS-485

Transmitter

Vacuum

chamber

USB/RS485-

converter

24 V DC

Mod.:

Mod.-Nr.:

Input:

Output.

Masse:

Ser.-Nr.:42000303

RPT100

PT.........

.....V,50/60Hz ..VA

.....V,0.2 A

.....kg

D-35614Asslar

Mod.:

Mod.-Nr.:

Input:

Output.

Masse:

Ser.-Nr.:42000303

RPT100

PT.........

.....V,50/60Hz ..VA

.....V,0.2 A

.....kg

D-35614Asslar

Vacuum

chamber

Vacuum

chamber

WARNING

Contamination of transmitter parts possible due to the media measured!

Poisoning hazard through contact with harmful substances.

In the case of contamination, carry out appropriate safety precautions in order to pre-

vent danger to health through dangerous substances.

Decontaminate affected parts before carrying out maintenance work.

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