Effective 1/11/07, IET Labs, Inc. has acquired this line of Resistance Products from TEGAM

Please contact IET Labs, Inc. for New Products, Repair/Service

Model RS925D - Decade Resistor Standard

DESCRIPTION: The TEGAM Model RS925D is a four-terminal, continuously variable resistance standard. Values from 10m to 1.2M can be achieved using eight decade switches. The rheostat offers a resolution of 20m. Use of Evanohm, wire-wound precision resistors provide an accurate, stable standard with good temperature characteristics. The Model RS925D can be used as a standalone resistance standard or in conjunction with the TEGAM Models 801B/801C, and 240C to complete a 242D or 242E Resistance Measurement System.

FEATURES:

  • Initial Adjustment Accuracy..± (20PPM + 1m) at any setting
  • 100 to 100k decks individually trimmed to 1 to 2 PPM Accuracy
  • Stability after adjustment... ± (20PPM + 0.5m) per year

APPLICATIONS:

  • Used to dial in resistance to determine exact resistance values for bridge comparisons
  • Calibration of decade resistance standard boxes such as the TEGAM DB62 series.
  • Used as a component of the Tegam Model 242D or 242E, 10 PPM or 5 PPM Precision Resistance Measurement System

Model DB62 Series - Precision 6-Decade Resistance Box

DESCRIPTION: The TEGAM Model DB62-XX is a DEKABOX in-line Decade Resistor. Each of four different Models, DB62-11k, DB62-111k, DB62-1M, & DB62-11M, provide six decade switches that allow 1,000,000 resistance values to be dialed. Accuracy over a wide range of ambient conditions is assured by the use of resistors with good temperature and power characteristics. Switches built with multiple contacts of solid silver-alloy ensure excellent repeatability of readings.

FEATURES:

  • Initial Accuracy..± (0.01% + 6m)
  • Long-term Accuracy (2 years)... ± (0.02% + 6m)
  • Decade Values starting at 0.01 /step up to 11.1111M max value
  • Uses non-inductive resistor designs for AC or DC performance

APPLICATIONS: Serves DC through Audio Frequency applications as a resistance substitution box or as a calibration standard.

Model DB877 - Precision 8-Decade Resistance Box

DESCRIPTION: Model DB877 is a coaxial decade resistance box, which provides 0.1 to 12M of resistance. It features eight decades made up of precision wire-wound resistors. The DB877 is designed to provide long-term dependable service in precision DC and audio frequency applications. Two sets of four dials each are configured so that the operator can easily switch in the exact resistance. Up to 120 million divisions of resolution are provided to obtain the closest possible resistance value.

FEATURES:

  • ± (0.01% + 7m) Initial Accuracy
  • ± (0.02% + 10m) Long-term Accuracy
  • Low Temperature and Power Coefficient
  • Extruded Metal Case for Shielding and Mechanical Protection
  • Solid Silver Alloy Switch Contacts to improve repeatability to 1m

APPLICATIONS: Used to dial in exact resistance values for DC and Audio frequency ranges.