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CDHT - Compression Digital Hand Tester
CDHT - Compression Digital Hand Tester

This tester can accommodate larger springs (up to 6” tall) and test with greater accuracy than our ECT. In addition, this tester is upgradeable with more options like the Micro-Length Adjust with length stops, an RS 232 port or single or double length stops. The tester has a two-line backlit LCD display of force and length and has deflection compensation for accurate readings at all times. It has a rugged cast aluminum and steel frame, a precision rack and pinion drive with adjustments for wear, and convenient hand operation to apply force and adjust length. It includes standard length lock and mechanical overload stops to protect the tester from damage.

Part Testing Capacity
  • Standard 6" range (5.75" range with High Resolution Length Option)
  • Standard 6" stroke
  • Up to 4" Ø platform (2" standard)
  • Up to 0.0005" length resolution (0.001" standard)
  • 11, 110 & 750 lb load capacities
  • DHT software package
  • Compression testing of force and length
  • Tracking or peak modes (2,000 samples / sec)
  • Load cell & frame deflection compensation
  • Mechanical & software overload protection
  • Built-in shunt calibration verification
  • Digital calibration & linearization
  • Backlit digital LED display of force & length
  • Wipe-clean embossed key faceplate
  • Push-button force & length zeroing
  • NIST traceable calibration
SDC (Spring Data Collector) Software Logo

Try our software for "Spring Testing Data at Your Fingertips". With Larson Systems' SDCSoftware, your spring testing data can be accessed, stored and manipulated as it is generated. Store specifications for differentparts, load a set of parameters and clearly see which springs are out of spec using the on-screen graphical representation of the testing results. Save and print results or open the results file in Microsoft Excel. You have complete control of your testing data.

Force Specifications
Load Cell
Capacity
Standard Resolution High Resolution*
0-100% FS 0-20% FS 20-100% FS
11 lb 0.005 lb 0.0005 lb 0.005 lb
5 kg 0.002 kg 0.0002 kg 0.002 kg
49 N 0.02 N 0.002 N 0.02 N
110 lb 0.05 lb 0.005 lb 0.05 lb
50 kg 0.02 kg 0.002 kg 0.02 kg
489 N 0.2 N 0.02 N 0.2 N
750 lb 0.5 lb 0.05 lb 0.5 lb
340 kg 0.2 kg 0.02 kg 0.2 kg
3,336 N 2 N 0.2 N 2 N
Accuracy = ± Full Scale Resolution x 2
*Requires High Resolution Force option 050-0000-0107-00
Length Specifications
Capacity Standard Resolution High Resolution*
≤ 110 lb 0.001 in (± 0.002 in) 0.0005 in (± 0.001 in)
0.02 mm (± 0.04 mm) 0.01 mm (± 0.02 mm)
≥ 750 lb 0.001 in (± 0.005 in) 0.0005 in (± 0.002 in)
0.02 mm (± 0.1 mm) 0.01 mm (± 0.04 mm)
*Requires High Resolution Length option 025-0000-0488-00
Ordering Information
Part Number Description Price
Tester
050-0000-0055-00 CDHT - 11 lb Compression Digital Hand Tester Quote
050-0000-0056-00 CDHT - 110 lb Compression Digital Hand Tester Quote
050-0000-0057-00 CDHT - 750 lb Compression Digital Hand Tester Quote
Accuracy Options
050-0000-0107-00 High Resolution Force (10X Resolution from 0-20% FS), DHT Quote
025-0000-0488-00 Digital Length Precision Upgrade (0.0005 Res, ± 0.001 Acc) Quote
Factory Options
025-0000-0407-02 Micro Length Adjust with Built-in Stops (CDHT, DHT) Quote
025-0000-0676-00 MicroAdjust Wrenchless Stop Assembly Quote
050-1000-0064-00 RS232 / USB output, DHT Family Quote
Accessories
025-0000-0191-00 Platforms - 4" Ø (Pair for 5/16-18 Mount) Quote
025-0000-0225-00 Thru-Rod Support Kit (1/16 to 1/8" Ø x 6") Quote
025-0000-0485-00 4" Ø Platform / Thru-Rod Support Kit (1/16 to 11/16" Ø ID x 8") Quote
025-0000-0293-00 Single Stop Rod Quote
025-0000-0333-00 Double Stop Rods Quote
025-0000-0294-00 NiCad Rechargeable Battery (4-8 hr life) Quote
059-1000-0026-00 Dust Cover - ECT, CDHT, CDHT w/Microadjust Quote
025-0000-0226-00 Vibration Damping Pad Quote
025-0000-0288-00 Air Vibration Damping Table Quote
RS 232 Options
025-0000-0464-02 Inkjet Printer (Includes Cable / Adapter 025-0000-0458-00) Quote
025-0000-0458-01 RS 232 to Parallel Printer Cable / Adapter Quote
Software Options
050-0000-0075-00 SSS - Statistical & Spreadsheet Interface Software Quote
050-1000-0060-00 Spring Data Collector Software (for use with DHT family testers) Quote
Power Supplies
025-1000-0396-00 Power Supply, 100-240 VAC 50-60 Hz (USA Plug) Quote
025-1000-0396-04 Power Supply, 100-240 VAC 50-60 Hz (International Plugs) Quote

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Larson Systems Inc.
13847 Aberdeen Street NE
Ham Lake, MN 55304
Phone: 763-780-2131
Fax: 763-780-2182
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