|Quadtech Inc. 1689 LCR Meter|
The two Digibridge(R) precision RLC testers, GR1689 and GR1689M, are microprocessor-controlled, automatic, programmable RLC measuring instruments that provide high accuracy, convenience, speed, and reliability at low cost. Limit comparison, binning, and internal bias are provided; both test frequency and voltage are selectable. With an interface option, each Digibridge tester can communicate with other equipment and respond to remote control. The versatile, adaptable test fixture, lighted keyboard, and informative display panel make these Digibridge testers convenient to use. Measurement results are clearly shown with decimal points and units, which are automatically presented to assure correctness. Display resolution is 5 full digits for R, L, and C (4 full digits for D, Q, Rs with Cs, and Rp with Cs). Notice that Rs is also known as ESR (equivalent series resistance). The basic accuracy is 0.02%. Long-term accuracy and reliability are assured by the measurement system, which makes these accurate analog measurements over many decades of impedance without any critical internal adjustments. Calibration to ..ccount for any change of testfixture parameters is semiautomatic; the operator needs to provide only open-circuit and short-circuit conditions in the procedure. The Digibridge tester normally autoranges and automatically identifies the principal measurement parameter. The test fixture, with a pair of plug-in adaptors, receives any common component part (axiallead or radial-lead), so easily that insertion of the device under test (DUT) is a one-hand operation. True 4-terminal connections are made automatically. Extender cables are available for measurements at a moderate distance from the instrument. They are optional for the 1689 (which has a built-in test fixture, but requires extension typically for bulky components or parts in an automatic handler). They are necessary for the 1689M, which has no built-in test fixture. Limit comparisons facilitate sorting into 13 GO and 2 NO-GO bins. Programmable test conditions include: Test frequencies from 12 Hz to 100 kHz Test voltages from 5 mV to 1.275 V; bias (2 V) Delay (before data acquisition) from zero to 99999 ms Measurement speeds up to 45 per second (with 1689M) or 30 per second (with 1689) Multi-measurement routines with automatic averaging and/or median taking of 2 to 765 measurements. Displays: measured values, percentages, differences, ratios,GO/NO-GO, binning Automatic output of value, bin number, bin summary and other results via IEEE-488 bus Bias can be applied to capacitors being measured, either by programming the selection of an internal supply (2 V) or by sliding a switch to connect an external voltage source (up to 60 V). A choice between two interface options provides full "talker/listener" and "talker only" capabilities consistent with the standard IEEE-488 bus. (Refer to the IEEE Standard 488-1978, Standard Digital Interface for Programmable Instrumentation. See paragraph 2.8, in Section 2.) A separate connector also interfaces with component handling and sorting equipment. 1.2 GENERAL DESCRIPTION 1.2.1 Basic 1689 Digibridge Convenience is enhanced by the arrangement of test fixture and controls on the front ledge, with all controls for manual operation arranged on a lighted keyboard. Above and behind them, the display panel is inclined and recessed to enhance visibility of digital readouts and indicators. These indicators and those at the keyboard serve to inform and guide the operator in manipulating the simple controls, or to indicate that remote control is in effect. The 1689 instrument stands on a table or bench top. The sturdy metal cabinet is durably finished, in keeping with the longlife circuitry inside. Glass-epoxy circuit boards interconnect and support high-quality components to assure years of dependable performance. Although intended for bench-top use, this model can be rack mounted, using a type of mount that slides forward for convenience. Adaptability to any common ac power line is assured by the removable power cord and the convenient line-voltage switch. Safety is enhanced by the fused, isolating power transformer and the 3-wire connection. 1.2.2 Basic 1689M Digibridge The essential front-panel features of the 1689 are provided on the vertical front of the model 1689M. These include the keypad, display, and the power ON/OFF button. The set of four BNC connectors for connection to the test fixture is supplied on the front panel, but can be relocated to the rear if that is preferred. The displaypanel and keyboard indicators serve to inform and guide the operator in manipulating the simple controls, or to indicate that remote control is in effect. The 1689M instrument also stands on a table or bench, where the bail provided under its front edge can be used to tilt it back for operator convenience. This model goes particularly well in a rack, with its vertical front pane] and cable connection (from either front or rear) to a suitable test fixture. The sturdy metal cabinet is durably finished, in keeping with the long-life circuitry inside. Glass-epoxy circuit boards interconnect and support high-quality components to assure years of dependable performance. Adaptability to any common ac power line is assured by the remo able power cord and the convenient line-voltage switch. Safety is enhanced by the fused, isolating power transformer and the 3-wire connection.
These manuals are available for the above equipment:
|Quadtech Inc. -- 1689 -- User Manual|
|Manual Type:||User Manual|
|Size:||10.46 Mbytes (10967683 Bytes)|
|Date:||01 March 2000|
|Quality:||Scanned document, all readable.|
|Upload date:||29 January 2017|
|Downloads:||200 since 29 January 2017|
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