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Summary of Contents for Pfeiffer Vacuum MPT 200
- Page 1 OPERATING INSTRUCTIONS Translation of the original instructions MPT 200 Digital Pirani/Cold Cathode gauge...
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Page 2: Table Of Contents
6.5 Configuring the data exchange ....... . . 14 6.6 Pfeiffer Vacuum Protocol for "RS-485" ......16 6.7 Adjusting the gauge . -
Page 3: About This Manual
About this manual 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 refers to the current state of the product's development. -
Page 4: Safety
The operator is obligated to make operating personnel aware of dangers originating from the unit or the entire system. The gauge MPT 200 has been tested and accepted in compliance with EN 61010/VDE 0411 “Safety Equipment for Electrical Components”. -
Page 5: Proper Use
● Communicate the safety instructions to other users. Proper use ● Only use the MPT 200 digital gauge for measuring total pressures in the 5 x 10 ... 1000 hPa range. ● Only use the gauge for air, inert gases and gas mixtures outside their explosion limits. -
Page 6: Product Description
Product description Product description The digital transmitter MPT 200 consists of a cold cathode sensor and a Pirani sensor, whose measurement principle is based on the pressure-dependent thermal conductivity of gases. Sensor head and associated electronics are installed in a compact housing. -
Page 7: Range Of Application
Transport and storage Range of application The unit MPT 200 must be installed and operated in the following ambient conditions: Installation location weather protected (indoor) Protection class IP 54 Installation altitude max. 2000 m Ambient temperature +5°C to +60°C Relative humidity 5 ... -
Page 8: Installation
Installation Installation Vacuum connection NOTICE 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 1500 to 4000 hPa Damage to health through emission of process media, because elastomer washers... -
Page 9: Electrical Connection
Reinsert the rubber plug. RS-485 M12 socket with screw coupling for the connection of a Pfeiffer Vacuum control unit or a PC. The use of a Y-connector enables the series connection in a bus system. Assignment... - Page 10 Installation Connecting the 24 V DC gauge to the USB/RS- USB/RS-485 Converter 485 converter Fig. 5: Connections diagram gauge - USB/RS-485 converter Set the relevant address at the address selector switch S. Connect the gauge to the USB/RS-485 converter using the connection cable. ...
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Page 11: Operation
Operation Operation Before switching on After switching on the power supply, the connected gauge is ready for operation. It is ad- visable to wait for a stabilization period of 5-10 minutes before measurement. Operate the gauge during the measurement continuously independent of the applied pressure. The measured pressure will depend on the type of gas. -
Page 12: Switching On/Off The Cold Cathode Sensor
Operation Remove the magnet unit 6 from the sensor head 5, pay attention to O-ring 7. Bake out sensor head 5, pay attention to max. bakeout temperatur (180 °C) at the flange. Adjust the gauge. Switching on/off the cold cathode sensor With this transmitter the CC sensor can be switched on/off to suit process require- ments.This is achieved using measuring devices via the PC software Dokustar (≥... -
Page 13: Selecting Switching Range
Operation Selecting switching range Depending on the application the MPT 200 transmitter enables to adjust the switching range between Pirani and cold cathode (CC) sensors to avoid – the set value for pressure control is in the switching range or, –... -
Page 14: Configuring The Data Exchange
Operation Configuring the data exchange Communication is effected, depending on the position of the address selector switch at the gauge (address settable from 1–16), via Serial Interface RS-485. ● 9600 baud ● 8 data bits ● 1 stop bit ● no parity Parameter overview Name Data type... - Page 15 [P:349] "CPT 200" "RPT 200" "PPT 200" "HPT 200" "MPT 200" The software version can be read from the connected device using parameter 312: Reading the software version [P:312] ● Example: 010102 The correction factor can be set to values in the range 0.2–8.0 :...
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Page 16: Pfeiffer Vacuum Protocol For "Rs-485
Operation Pfeiffer Vacuum Protocol for "RS-485" The telegram frame of the Pfeiffer Vacuum protocol contains only ASCII code characters Telegram frame [32; 127], the exception being the end character of the message . Basically, a master (e.g. a PC) sends a telegram, which is answered by a slave (e.g. electronic drive unit or gauge). -
Page 17: Adjusting The Gauge
Operation Activate/send parameter for low pressure (control command) Low pressure adjustment (Parameter [P:741/740], Slave device address: "001") ? ASCII ASCII Adjusting the gauge The gauge is factory-adjusted. It may be necessary to adjust the Pirani sensor in the event of contamination, other installation positions, extreme temperature fluctuations, ageing, etc. -
Page 18: Maintenance
Maintenance Maintenance DANGER Strong magnetic field in the vicinity of the sensor head! Danger of death for persons with cardiac pacemakers when the magnetic unit is disas- sembled. Maintenance personnel with active body aids (e.g. cardiac pacemakers) should maintain a safe distance of at least 10 cm from the magnetic unit of the transmitter. ... -
Page 19: Replacing The Sensor Head
Disposal Replacing the sensor head In case of a defective sensor or if the gauge cannot be adjusted after cleaning, the sensor assembly 5 must be replaced. Fig. 8: Replacing the sensor assembly Turn off the vacuum pump, vent to atmospheric pressure and allow to cool. Dismantling ... -
Page 20: Malfunctions
Malfunctions Malfunctions Rectifying malfunctions Errors Possible cause: Remedy Communication error: Transmit- ● No power supply Connect data cable or power- pack. ● Incorrect address preset ters Set address selector switch ● Transmitter faulty correctly. Change transmitter A too large measuring value is ●... -
Page 21: Service
– Send the unit and have it replaced with a new unit Sending of units (under warranty) For a quick and smooth handling of the service process, Pfeiffer Vacuum recommends the following steps: Download the forms "Service Request" and Declaration on Contamination. -
Page 22: Accessories
PM 061 207 -T DokuStar Plus software, 16 channels PT 882 501 PV TurboControl - Software for Pfeiffer Vacuum products with PV protocol PM 061 741 Centering ring with protection filter, FPM/stainless steel, DN 25 ISO-KF PF 117 225 -T... -
Page 23: Technical Data And Dimensions
Torr 1.33 1.33 · 10 133.32 1.33 0.133 mm Hg 1 Pa = 1 N/m 13.2 Technical data Parameter MPT 200 MPT 200 MPT 200 Nominal diameter DN 25 ISO-KF DN 40 ISO-KF DN 40 CF-F Protection category IP54 IP54 IP54 Bakeout temperature max. -
Page 24: Dimensions
Technical data and dimensions 13.3 Dimensions Ø 53 Ø 40 Fig. 9: MPT 200, DN 25 ISO-KF Ø 55 Fig. 10: MPT 200, DN 40 ISO-KF... - Page 25 Technical data and dimensions Ø 70 Fig. 11: MPT 200, DN 40 CF-F...
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Page 26: Gas Correction Factor
Technical data and dimensions 13.4 Gas correction factor 1E-1 1E-2 1E-3 1E-4 1E-4 1E-3 1E-2 1E-1 real pressure (hPa) Fig. 12: Measurement curve MPT 200 (Pirani) Pirani correction factor: Cold cathode correction factor: 1.00 5.93 1.00 2.39 0.58 0.80 1.02 0.74 1.59... -
Page 27: Declaration Of Conformity
EC directives: ● Electromagnetic Compatibility 2014/30/EU ● Restriction of the use of certain Hazardous Substances 2011/65/EU DigiLine MPT 200 Harmonised standards and national standards and specifications which have been ap- plied: EN 61326-1: 2013 Group 1 / Class B... - Page 28 VACUUM SOLUTIONS FROM A SINGLE SOURCE Pfeiffer Vacuum stands for innovative and custom vacuum solutions worldwide, technological perfection, competent advice and reliable service. COMPLETE RANGE OF PRODUCTS From a single component to complex systems: We are the only supplier of vacuum technology that provides a complete product portfolio.
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