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DHS 29,35 Series Infrared Thermometers

Brand: Palmer Wahl Instruments, Inc
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The DHS29 is designed for extreme applications in Ferrous and Non Ferrous Metal, the DHS29 and 35XT Heat Spy models are built from the bottom up for precise, accurate measurement of high temperatures under the toughest factory conditions. 

The DHS29 Series measures through glass ports, flames, and products of combustion. 

High temperature range: 900° to 3200°F (482° to 1760°C). 

Narrow spectral range for general purpose, high temperature measurement through glass. 

Small target resolution and long telescopic range. 

Aim through ports in furnace walls at refractories, glass gobs, furnace tubes, ceramics, billets, slag, and annealing materials. 

Sapphire window protects the silicon optics from heat and contamination. 

3 Year Warranty. 

Enclosed Optical Sight.

The DHS35 XT measures furnace tube temperatures through open ports. 

High temperature range: 800° to 3200°F (426° to 1760°C). 

Narrow spectral range of 3.5-4.1 microns. 

Features Specialized Reflex Sighting to enable readings from very small target areas. 

Minimizes errors caused by the reflectance from walls and flames.
 
Does not measure through glass ports. Best choice for high temperature general purpose operations. 

Offered with telescopic sighting system only. 

3 Year Warranty.
Features
DHS29X

  • Measures Through Glass Ports, Flames, and Products of Combustion
  • High Temperature Range: 900° to 3200°F (482° to 1760°C)
  • Narrow spectral range of 2.1 - 2.5 microns for general purpose, high temperature measurement through glass
  • Small target resolution and long telescopic range
  • Aim through ports in furnace walls at refractories, glass gobs, furnace tubes, ceramics, billets, slag, and annealing materials
  • Sapphire window protects the silicon optics from heat and contamination
  • 3 Year Warranty

DHS35XT

  • High Temperature Range: 800° to 3200°F (426° to 1760°C)
  • Measures Furnace Tube Temperatures Through Open Ports
  • Narrow Spectral Range of 3.5 - 4.1 Microns
  • Specialized Reflex Sighting to Enable Readings From Very Small Target Areas
  • Minimizes Errors Caused By The Reflectance From Walls and Flames
  • Does Not Measure Through Glass Ports
  • 3 Year Warranty
  • Best Choice for High Temperature General Purpose Operations
  • Offered With Telescopic Sighting System Only

Specifications

Brand

DHS29 Temperature Range

  • 900° to 3200° F
  • 482° to 1760° C

DHS35 Temperature Range

  • 800° to 3200° F
  • 426° to 1760° C

DHS29 Distance to Spot Ratio

  • 100:1

DHS29 Spectral Range

  • 2.1 to 2.5 µm

DHS35 Spectral Range

  • 3.5 to 4.1 µm

Emissivity

  • Adjustable 0.2 - 1.0

DHS29 Accuracy at 77° F ±5°

  • ± 0.3 % Full Scale

DHS35 Accuracy at 77° F ±5°

  • ± 0.5 % Full Scale

Repeatability

  • ± 3° F

Resolution

  • 1° F / °C

Response Time to 95% of Reading

  • 1 second

Operating Temperature

  • 25° to 125° F (-4° to 52° C)

Temperature Coefficient

  • ± 0.1 deg/deg

Practical Working Distance

  • 0 to 150 feet

DHS29 Sighting System

  • Enclosed or Telescope

DHS35 Sighting System

  • Telescope Only

Output to Recorder

  • 1 mV/deg.

Power Supply

  • LCD 1 - 9 V Alkaline Battery, LED 2 - 6 V Batteries

Battery Life

  • 40 hours

DHS29 Weight (Lbs)

  • 2.5 lbs (1.13 kg) (T) 3.0 lbs (1.36 kg)

DHS35 Weight (Lbs)

  • 3.0 lbs (1.36 kg)

Included Accessories

  • User Manual, LCD, 1-9 V Battery, LED, 2-6 V Alkaline Batteries, Carrying Case, Trigger Lock, AC Adapter (Specify 110 V or 220 Vac)

Documentation

Data Sheet

Manual

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