246 Balancing Instrument
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Model 246 Portable Balancing Instrument FOR IN-SITU BALANCING & FOR USE WITH ALL TYPES OF BALANCING MACHINES DESCRIPTION: The Model 246 is a portable, easy to use Balancing Instrument with automatic speed tracking of vibration amplitude and angle. It can be used to balance all types of rotors ‘In Situ’ and on Soft or Hard Bearing balancing machines. The 246 can be used to replace outdated instruments and improve the performance of older balancing machines. Anyone can use the 246 to balance rotors with minimal training. Once the instrument is calibrated, the operator simply needs to spin the rotor and read the unbalance corrections on the LCD display screen. The small size and light weight of the model 246 make it very easy to hand carry to the job site. The built-in printer provides hard copy reports of the before and after balancing results. GENERAL SPECIFICATIONS: • Balancing Speed Range: 60 to 80,000 RPM • Amount Readout: Auto-Ranges between 0.001 to 5 000 micrometers p-p (0.0001 to 199 mils p-p) or 0.0001 to 228 mm/sec pk (0.0001 to 9 in/sec pk) • Digital Angle Readout: 0-359 degrees • Filter: Dual, narrow band shaft-synchronous digital tracking filters, with averaging • Number of Balance Planes: 1 or 2 • Calibration Methods: Trial Weights or Permanent (Hard Bearing machines only) • Display: Dual Channel, backlit supertwist alphanumeric LCD with 2 lines x 40 characters per line • Numeric keypad with 6 Function keys for data entry • Unbalance Readout: g mm, g in, oz in, grams or ounces • Vibration Readout: micrometers, mils, millimeters/second or inches/second • Display of Dynamic (Left/Right) Unbalance or Static/Couple Unbalance • Display of correction angles for adding or removing rotor balance weights • Unbalance Display in Digital Format • Non-Volatile Rotor Memory storage for up to 50 different rotors internally • Automatic Vector Splitting of unbalance corrections • Vector Addition of unbalance corrections for combining weights • Electronic Compensation for tooling errors caused by cardan shafts or adapters • Electronic Compensation for keys and keyways • Customized Headings on Balance Reports (with external computer) • Built in thermal printer: 80 mm (3.15 inch) wide continuous paper • Serial RS232 interface to send balance data to an external computer • CE certification: According to EU directives 89/336EEC (EMC) and 73/23EEC (Product Safety) • Electromagnetic Std: EN61000-6.2:2001 EN61000-6.3:2001 • Product Safety Std: EN61010-1:2001 • Available Accessories: Vibration sensors, photocell speed sensor, cables, etc. • Briefcase configuration: –415 x 300 x 125 mm (LengthxWidthxHeight) –Weight: 6 kg (13 lb) (no accessories) –Power Supply: 120/240VAC, 50/60Hz –Temperature: Operating 0 to+50° C • Switch Selectable Language Options: English, German, French, Italian and Spanish • Angle encoder input for the display of the unbalance position (requires 1024 ppr external encoder, not included) OPTIONAL FEATURES: • Printer: Full size printer • External DC battery pack Page 1 of 3

STANDARD CONFIGURATIONS: 246 Package Brief Description Detailed Description E00312 Basic Instrument only Model 246 for applications where all accessories (vibration sensors, speed sensor, mounting brackets, cables, etc.) are already available. This package includes the 246 instrument, three power cables (US, UK and European), an operation manual, two rolls of printer paper and a PC communications disk. E00310 Instrument and Accessories for IRD Belt Drive Balancing Machines (B5-B200) Model 246 for new or existing IRD Soft Bearing, Belt Drive Balancing Machines, B5 – B200. Accessories, in...

Other Options, Accessories and Supplies E71270 Printer paper, qty. 1 roll ,(80mm wd x 25m/82ft lg per roll) E35770 Printer paper, qty. 5 rolls,(80mm wd x 25m/82ft lg per roll) E41626 AC Power Supply Cable with Australian plug E27100 246 External Battery pack (12 volt,13AH) with 120VAC charger & cable E48372 Universal Battery charger for E27100 pack, 120/240VAC, 50/60Hz, auto-switching E26391 Cigarette lighter adapter (12 volt DC) with 3m/10' cable, powers 246 through automotive 12V DC acc’y outlet E70057 Operation manual for 246 Balancing Instrument-English E70072 Operation manual for 246...