Fowler Electronic Indicators

Ultra-Digit Mark IV Indicators, Accessories, and Backs
Ultra-Digit Mark V
Long-travel Ultra Digit Mark IV Indicators

Fowler/Sylvac Ultra Series Ultra-Digit Mark IV
Designed and manufactured by Sylvac in Switzerland, Fowler introduces the Ultra-Digit Mark IV indicator - the latest in mechanical and electronic design technology for measuring instruments.

Features
• The non-contact linear measuring system is insensitive to dust, dirt, oils, and electrical or magnetic interference.
• Direct inch/metric conversion.
• High contrast LCD display for fatigue-free viewing. LCD display has indicators for in/mm, hold, reference, preset zero functions.
• Dual measuring references, each one individually presettable to ±99.99999.
• Low drain, high efficiency lithium wafer battery - 4500 hrs. continuous on time. Extend battery life 2-3 years with on/off switch.
• Repeatability .0001" (.002mm), ±2s.
• Incremental floating zero. If tool is used for SPC, the zero button can automatically be configured as a data I/O switch.
• Increased measuring, tracking speed of approximately 1.5 meters (60")/second - impossible to overrun measuring speed.
• Hold feature freezes display.
• Display face rotates 270°.
• Non-contact measuring system - no gears or pinions or moving parts.
• Top lifting knob.
• Direct RS232C output allows connection of the tool to any computer or printer. No Interface is necessary. For direct SPC output, hook up the tool with the specially constructed optocoupled cable. Free IBM compatible computer software included with cable for tolerancing, min/max/tir, analog display, large display and SPC data collection.
• AGD Group 2 dimensional specifications. (3/8" mounting, lug back, 4-48 thread).
• Rugged housing constructed from high impact Polyamid, stainless steel shank and spindle.
• Temperature range 41 to 104°F working -4 to 140°F storage.
Part Number Description Resolution Accuracy Page Price  
54-520-777 0-1"/25mm UD Mark IV .00005"/.001mm .0002"/.005mm 275 $352.75
54-520-555 0-1"/25mm UD Mark IV .0005"/.01mm .0008"/.02mm 275 $310.25
54-520-790 0-1/2"/12.5mm UD Mark IV .00005"/.001mm .0002"/.005mm 275 $361.25
54-520-791 0-1/2"/12.5mm UD Mark IV .00005"/.001mm .0002"/.005mm 275 $370.60
54-520-792 0-2"/50mm .00005"/.001mm .0005"/.012mm 275 $739.50
54-520-794 0-4"/100mm .00005"/.001mm .0006"/.015mm 275 $845.75
Accessories:
Part Number Description Page Price  
54-520-764 1/2" dust cap for 54-520-555/777/790 (restricts travel to 1/2") 275 $12.75
54-520-765 1" dust cap for 54-520-555/777 275 $17.00
54-520-560 1/4" travel restrictor for 54-520-555/777 275 $10.63
54-520-565 1/2" travel restrictor for 54-520-555/777 275 $10.63
54-520-770

Lifting lever for 54-520-555/777/790

 275 $25.50
54-520-772 Photo cable lifter for 54-520-555/777/790 275 $97.75
54-520-774 Lifting hook for Ultra-Digit Mark IV Indicators 275 $8.50
54-520-763 Plastic cover for protection in harsh environments 275 $2.55
54-115-333 Simplex Computer Connect Kit. Includes 80" (2m) connecting cable with 9 pin IBM compatible, 9/25 pin adaptor, support disk and instruction book 275 $84.58
54-100-350 Replacement lithium battery (type #CR2032 or BR2032) 275 $4.25
UltraDigit IV and V Backs:
Part Number Description Page Price  
54-520-762 Offset Lug Back 275 $12.75
54-520-776 Post Plain 275 $12.75
54-520-778 Post Back Internally Threaded 275 $38.25
54-520-779 Adjustable Bracket 275 $39.10
54-520-766 Lug back for Ultra-Digit Mark IV Indicators. (Standard with all units) 275 $15.73
54-520-760 Flat back for Ultra-Digit Mark IV Indicators. 275 $14.88

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Fowler's Ultra-Digit Mark V features Min/Max/Tir modes, tolerance signal lights, selectable resolution and bi-directional RS232 output.
• .00005"/.001mm or .0005"/.01mm resolution
• AGD Group 2 specifications
• Display face rotates 270° for easy viewing
• Two presets with preset recall
• Floating Zero
• Accuracy .0002"/.005mm
• Repeatability .0001"/.002 (±2s)
Part Number Description Page Price  
54-520-888 Mark V Ultra-Digit Indicator with 0-1"(25mm) range 278 $420.75
54-520-875 Mark V Ultra-Digit Indicator with 0-1/2"(12.5mm) range 278 $416.50
54-520-876 Mark V Ultra-Digit Indicator 0-1/2"(12.5mm) travel. Same as #54-520-875 but with 8 mm diameter stem. Contact point thread M2.5. 278 $420.75
54-520-900 Special Mark V Ultra-Digit Indicator for Cylinder Bore Gages only (1/2" travel, 8 mm stem, flat back) features "minimum preset". 278 $420.75
54-115-333 Simplex Connecting Kit. Includes 80"(2m) connecting cable with 9 pin IBM compatible, 9/25 pin adaptor, support disk and instruction book. 278

$84.58
54-115-336 Duplex Connect Kit - as above but for 2 way communication 278 $110.05
54-520-763 Plastic cover. Protects display and keypad. 278 $2.55
UltraDigit IV and V Backs:
Part Number Description Page Price  
54-520-762 Offset Lug Back 278 $12.75
54-520-776 Post Plain 278 $12.75
54-520-778 Post Back Internally Threaded 278 $38.25
54-520-779 Adjustable Bracket 278 $39.10
54-520-766 Lug back for Ultra-Digit Mark IV Indicators. (Standard with all units) 278 $15.73
54-520-760 Flat back for Ultra-Digit Mark IV Indicators. 278 $14.88

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Long-travel Ultra-Digit Mark IV Indicators
Applications
As a comparator for batch inspection of large quantities of components.
Features #54-520-782:
• AGD Group 2 dimensional specifications. (3/8" mounting, 4-48 thread).
• Rugged housing constructed from high impact Polyamid, stainless steel shank and spindle.
• Non contact measuring system - no gears or pinions or moving parts.
• Temperature range 41-104°F working; -4 to 140°F storage.
• Increased measuring, tracking speed of approximately 1.5 meters (60")/second.
• Resolution .0005"(.01mm)
• Long range Ultra-Digit IV's are manually positioned; measuring force is applied through built-in side lever prior to measurement.
Electronic Features
• Completely reengineered measuring sensor. Direct inch/metric conversion. High contrast LCD display has indicators for in/mm, hold, reference, preset zero functions.
• Low drain, high efficiency lithium wafer battery - 4500 hrs. Continuous on time.
• Measuring force 14 ounces (4N).
• Incremental floating zero. If tool is used for SPC, the zero button can automatically be configured as a data I/O switch.
• Hold feature freezes display for later viewing.
• Direct RS-232 output. Direct connection to any PC computer or printer. No interface necessary.

Part Number Description Accuracy Weight Page Price

54-520-782

 Ultra-Digit Mark IV 0-2" (50mm). .0008" (.02mm) 7 1/2 ounces 276 $675.75
54-115-333 Simplex Computer Connect Kit. Includes 80"(2m) connecting cable; 9 pin IBM AT RS-232 connector; software support disk; instruction manual. 276 $84.58
54-100-350 Replacement lithium battery (type #CR2032 or BR2032). 276 $4.25

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