Exergen D-Series Also Manufactured by Exergen Industrial Division, IRt/c Infrared Thermocouples

D-Series Handheld IR Scanners

The porous material, cooled on both sides by evaporating water, reaches wet-bulb tempera- ture throughout the material, thus maintaining wet-bulb temperature at the surface for several seconds after the air flow stops. Since the water is opaque to infrared wavelengths, in as thin a layer as .002 in. (.05 mm), and the D-Series is able to measure the temperature with a time constant of 0.1 seconds, an accurate measurement of the wet-bulb temperature is obtained. The same procedure is employed on a non-porous material to obtain an accu- rate dry-bulb temperature.

With the appropriate psychrometric equations, the RH is immediately calculated. Each D-Series is equipped with, as a standard accessory, an RH Kit, which includes a convenient card with the wet and dry materials, simple RH and Dewpoint calculator, and handy tube of water.

Maximum accuracy for RH measurement is obtained with the D-Series models measuring 0.1° resolution. Though the absolute accuracy of the D-Series is not 0.1°, the RH is most sensitive to wet-bulb depression, i.e. the difference between dry-bulb and wet-bulb tempera- ture. In its differential mode, the D-Series is accurate to 0.1°, which translates to an RH accuracy of approximately 0.5% for the normal range of RH.

Also Manufactured by Exergen Industrial Division

IRt/c Infrared Thermocouples

D-Series nosepiece

IR detector

surface at wet-bulb temperature in the field-of-view of detector

Low-cost, high-quality sensors for non-contact temperature measurement and control. IRt/c sensors are used by more customers worldwide for process control, factory automation and OEM applications than any other IR device in the world. The small, easy to use IRt/c sensors require no power and connect directly to standard thermocouple devices available worldwide. Over 300 models offered, covering temperature ranges from -50 to 5000F (-45 to 2760C) with up to 0.01C precision.

For more information and pricing, please request a free copy of The IRt/c Book catalog from your local distributor, or Exergen.

Microscanner E-Series

Microscanner E-Series and IR.1Probe for Electrical Inspection

These unique handheld instruments are used by professionals for fast, accurate scanning of electrical equipment. The Microscanner Super E with a 200:1 lens, color-coded display and optional pointing laser is the fastest and most powerful pocket-sized electrical IR scanner in the world. The IR.1Probe is a low cost electrical IR scanner for use with standard digital multimeters. Contact Exergen or your local distributor for more information.

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