TRICOR's NEW Model 921B Displacement Force Test Station

Model 921 Force Displacement and Switch Test Station

Accurate, fast, repeatable testing of displacement and force parameters
Test to ASTM standards F1570, F1597, ect. with optional resistance channel
PC-interactive or standalone operation
Provides in-depth test data to fulfill customer requirements
Up to 5000 data points per test
Displays test data in tabular or graphic formats
Versatile test head can be mounted to meet user's needs
Typically reduces test time by 50% or more
Eliminates deflection errors through automatic delection compensation

Overview

The Model 921B may operate in a standalone mode for production line testing. The operator is presented with a pass/fail indication for the devices being tested. The Model 921B may also communicate with a PC and provide data for analysis and storage. The analysis includes numerical (tabular) results as well as graphical display of the tested parameters. This line of displacement-force switch test stations has a positional resolution of 0.0025 mm (0.0001 inches). Your test department will appreciate the high accuracy readings provided over the complete travel range.

The Model 921B data can be saved in a reduced content set of results with only the tested parameters stored. This Excel format file can be the combined total of all the tests performed on a production lot. Each new test is appended to the specified file. The storage is optional and at the operators discretion. A more complete test record can be generated by storing the complete displacement / force / resistance measurements over the travel distance. An Excel format file again is used, but the data in this file is the total measurement collected for a single test. Included in the files are links to each of the associated files. The PC provides coordinates the retrieval and viewing of these independent files. Also available is the test configuration setup in the Model 921B, the test results and the actual measurement data. Used on the production line the data file is not typically saved, but if required the Model 921B and application software is fast enough to store all the collected information.

Interchangeable force sensors with ranges up to 22.7 kg (50 lb.) are available. The Model 921B also permits the user to change the probe tip. The test station performs a calibration on the complete test fixture. This calibration removes the deflection and compression effects that can reduce reading accuracy. The calibration is performed over the range of forces specified for the specifically configured setup.

Invaluable as a test tool for qualifying first article product, audit testing, engineering investigation and life study tests, the Model 921B can also be used in automated production areas. When integrated with an automatic feed or an x-y positioner, the Model 921B functions as a cost-effective automated test station ideal for a wide variety of production applications.

The 921B is provided with a user friendly application software that runs on Microsoft Windows based PCs. The output data is all in Microsoft Excel format files that can be opened by other application supporting this format and allows easy import of data for statistical process control (SPC).

The 921B is one of the most versatile, accurate and cost-effective test stations of its kind. It features accuracy levels equal to or exceeding those of much more expensive, dedicated systems.

Specifications

Power Requirements	115/220 V ac, 50/60 Hz, 230 VA
Test Speed	As fast as 8 mm/s (0.32 inch/s); as slow as 0.0254 mm/s (0.001 inch/s)
Measurement Units	Metric or English - user selectable

Displacement*
Range:	0 to 62.51 mm (0 to 2.46 inches) programmable
Resolution:	0.00254 mm (0.0001 inch) programmable
Abs Accuracy:	±0.00762 mm (±0.0003 inch) max
Repeatability:	±0.00762 mm (±0.0003 inch) max

Force*
Range:	0 to 3.60 kg (0 to 127 oz); other available ranges include 0-75.0 g 0-2.65 oz), 0-360 g (0-12.7 oz), 0-2.00 kg (0-70.6 oz) and 0-22.68 kg (0-50.0 lb)
Resolution:	1 g (0.035 oz)
Abs Accuracy:	±0.25% of full scale max
Repeatability:	±0.1% of full scale max

Tested Parameters
Actuation:	Release:	Calculation:
F_MAX = actuation force	F_RESTORE = F_MIN @ release	Tactile ratio = (F_MAX - F_MIN) / F_MAX
F_MIN = minimum force	T_RESTORE = travel @ F_RESTORE
T_MIN = travel @ F_MIN
T_MAX = travel @ F_MIN

*Options available

Options

Resistance/Voltage Channel(FDR Mode)

Resistance range of 0 - 16 kΩ or voltage range of 0 - 4 V; other resistance/voltage range available. Measures resistance for tactile and non-tactile switches. Tests the following additional parameters:
F_MAKE, F_BREAK, F_LOW, T_MAKE, T_BREAK, T_LOW, R_MAX, R_MIN, R_MAKE, R_BREAK, R_RESTORE, R_LOW

Test Fixtures

42.5H x 45.7W x 45.7D cm
(16¾H x 18W x 18D inches)
14.2 kg (31.5 lb)

42.5H x 30.5W x 30.5D cm
(16¾H x 12W x 12D inches)
7.8 kg (17 lb)

Sample Screenshots


Test Configuration	Force Displacement Graph

Force Displacement Resistance Graph

Model 921 Force Displacement and Switch Test Station Contact Information

Europe

Ian Ridpath
Nicomatic (UK) LTD
United Kingdom
[44] (146) 267-7886
Fax [44] (146) 267-7499
ian.ridpath@nicomatic.co.uk

South America

Carlos Guimaraes
Nicomatic South America
Brazil
[55] (11) 387-22791
Fax [55] (11) 367-28830
carlos.guimaraes@nicomatic.com.br

All other inquires contact TRICOR directly.