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Summary of Contents for Pfeiffer Vacuum IKR 251
- Page 1 OPERATING INSTRUCTIONS Translation of the original instructions IKR 251 Compact Cold Cathode Gauge, FPM gedichtet...
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Page 2: Product Identification
2×10 … 1×10 hPa. The IKR 251 can be used with a Pfeiffer Vacuum measurement unit for Compact Gauges or with another evaluation unit. Functional Principle Over the whole measurement range, the measuring signal is output as a logarithm of the pressure. -
Page 3: Table Of Contents
3 Installation 3.1 Vacuum Connection 3.1.1 Removing the Magnet Unit (Only for Gauges With CF Flanges) 3.2 Power Connection 3.2.1 Use With a Pfeiffer Vacuum Measurement Unit 3.2.2 Use With Another Evaluation Unit 4 Operation 5 Maintenance 5.1 Cleaning the Gauge / Replacing Parts 5.1.1 Disassembling the Gauge... -
Page 4: Safety
Maintain a safety distance of 10 cm between the magnet and the heart pacemaker or prevent the influence of strong magnetic fields by antimagnetic shielding. Pass on the safety information to other users. BG 5151 BEN / D (2017-07) IKR 251... -
Page 5: Liability And Warranty
1.4 Liability and Warranty Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if the custodian or third parties disregard the information in this document use the product in a non-conforming manner make any kind of changes (modifications, alterations etc.) to the product use the product with accessories not listed in the corresponding product documentation. -
Page 6: Technical Data
500 m (1.0 mm² conductor) Operating voltage (in the measuring chamber) 3.3 kV Operating current (in the measuring chamber) 500 µA Pfeiffer Vacuum measurement and control units for Compact Gauges fulfill these requirements. BG 5151 BEN / D (2017-07) IKR 251... - Page 7 Internal seals FPM75 Flange stainless steel (1.4104) Measuring chamber stainless steel (1.4104) Anode Ignition aid stainless steel (1.4310/AISI 301) Internal volume 20 cm³ Dimensions [mm] VACUUM Compact ColdCathode Gauge VACUUM Weight 700 g BG 5151 BEN / D (2017-07) IKR 251...
- Page 8 Ignition aid stainless steel (1.4310/AISI 301) Internal volume 20 cm³ Dimensions [mm] 101.5 18.5 VACUUM Compact ColdCathode Gauge VACUUM Weight 700 g (DN 40 ISO-KF flange) 950 g (DN 40 CF-F flange) BG 5151 BEN / D (2017-07) IKR 251...
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Page 9: Installation
If clamps are opened unintentionally injury can be caused by catapulted parts. Use the type of clamps which can only be opened and closed by means of a tool (e.g. hose clip clamping ring). BG 5151 BEN / D (2017-07) IKR 251... -
Page 10: Removing The Magnet Unit (Only For Gauges With Cf Flanges)
Remount the magnet unit and lock it with the hexagon head screw (3). Carefully mount the electronics unit (2). Push the electronics unit up to the mechanical stop and lock it with the hexagon socket set screw (1). BG 5151 BEN / D (2017-07) IKR 251... -
Page 11: Power Connection
Figure 1 3.2 Power Connection 3.2.1 Use With a If the gauge is used with a Pfeiffer Vacuum Pfeiffer Vacuum measurement unit for Compact Gauges, a Measurement Unit corresponding connection cable is required ( 19). Secure the cable at the gauge with the screw (tightening torque 0.2 Nm). - Page 12 Incorrect connection, incorrect polarity, or inadmissible supply voltages can damage the gauge. Reassemble the connector. Plug in the connector. Secure the cable on the gauge with the screw (tightening torque 0.2 Nm). BG 5151 BEN / D (2017-07) IKR 251...
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Page 13: Operation
CO. They can be mathematically converted for other gases ( Appendix C). If you are using a Pfeiffer Vacuum measurement unit for Pfeiffer Vacuum Compact Gauges, you can enter a calibration factor to correct the measurement value displayed ( of that measurement unit). -
Page 14: Maintenance
Allen wrench AF 3 Open-end wrench AF 7 Pliers for circlip Polishing cloth (400 grain) or Scotch-Brite Tweezers Cleaning alcohol Mounting tool for ignition aid Ignition aid FPM seal (11) for anode feedthrough BG 5151 BEN / D (2017-07) IKR 251... -
Page 15: Disassembling The Gauge
Carefully remove the following items in this order: pressure piece (9), complete anode (10), FPM seal (11) incl. support ring (12). The parts can now be cleaned or replaced. BG 5151 BEN / D (2017-07) IKR 251... -
Page 16: Cleaning The Gauge
Carefully place the pressure piece (9) on the measuring chamber and tighten it uniformly with the four (or two) hexagon socket screws (8) incl. lock washers (8a) until the stop position is reached. BG 5151 BEN / D (2017-07) IKR 251... -
Page 17: Adjusting The Gauge
5.1.4 Adjusting the Gauge The gauge is factory-calibrated and requires no maintenance. It must be replaced in the event of a defect ( 20). BG 5151 BEN / D (2017-07) IKR 251... -
Page 18: What To Do In Case Of Problems
Caution: vacuum component Dirt and damages impair the function of the vacuum component. When handling vacuum components, take appropriate measures to ensure cleanliness and prevent damages. Procedure Deactivate the gauge. Unplug the connector. BG 5151 BEN / D (2017-07) IKR 251... -
Page 19: Returning The Product
7 Returning the Product WARNING WARNING: forwarding contaminated products Products returned to Pfeiffer Vacuum for service or repair should, if possible, be free of harmful substances (e.g. radioactive, toxic, caustic or microbiological). Otherwise, the type of contamination must be declared. -
Page 20: Spare Parts
DN 40 ISO-KF flange BN 846 463-T DN 40 CF-F flange BN 846 464-T Exchange gauge (return defective gauge to Pfeiffer Vacuum) DN 25 ISO-KF flange PT R25 500-A DN 40 ISO-KF flange PT R25 501-A DN 40 CF-F flange... -
Page 21: Appendix
< 1 Pa on pressure unit) Conversion curves Pressure p 1E+00 1E–01 1E–02 Torr 1E–03 1E–04 1E–05 1E–06 1E–07 1E–08 1E–09 1E–10 0.0 0.5 1.0 1.5 10.0 10.5 Measuring signal U [ V] BG 5151 BEN / D (2017-07) IKR 251... -
Page 22: C: Gas Type Dependence
1.0×10 1.0×10 7.5×10 1.0×10 1.0×10 7.5×10 1.0×10 1.0×10 7.5×10 1.0×10 7.5×10 8.5 ... 10.5 Overrange Gas Type Dependence Indicated pressure (gauge calibrated for air) p (hPa) Luft / Air Xe Kr (hPa) BG 5151 BEN / D (2017-07) IKR 251... -
Page 23: Etl Certification
ETL Certification RECOGNIZED ETL LISTED COMPONENT The product IKR 251 conforms to the UL Standard UL 61010-1 is certified to the CAN/CSA Standard C22.2 No. 61010-1 3103457 BG 5151 BEN / D (2017-07) - Page 24 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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