Isotech 970 Data sheet

1200°C

to

150°C

Pegasus R High-Temperature Blackbody Source

Model 970

The Pegasus R is a compact, portable, high-temperature furnace for calibrating infrared thermometers.

The temperature of the furnace is set on a controller, while an independent indicator, whose sensor fits into the cavity,
indicates the actual radiance temperature. The external sensor can be removed from the cavity for a complete system
calibration.

The cavity diameter is 20mm, and the depth is 65mm.

A Pegasus blackbody source has been calibrated at NPL (National Physical Laboratory) with an uncertainty of ±2°C and
the calibration was found to be reproducible after a period of about 2 months.

A scan across the aperture at 444°C showed that the source was uniform to better than 0.3°C.

Traceability may be established with a NIST certificate for the built-in indicator and supplied probe (935-14-40).

Blackbody Fixed-Point Cells for Use with Pegasus R

The entire cavity is removable and small fixed-point cells may be put in its place, creating an unparalleled system of
portability and accuracy.

For the best calibration of radiation thermometers in the wavelength range 0.9 to 14 microns, a blackbody radiation
source, based on a design study by England’s National Physical Laboratory (NPL) for Isothermal Technology Ltd, is
housed, with suitable insulation, in the Pegasus tube furnace.

The aperture is 10mm in diameter.

Blackbody Cavity (shown in section)

Now Includes

PC Interface and Cal NotePad

Windows Software

SPECIFICATIONS

Model 970

Temperature Range 150°C to 1200°C

Emissivity 0.995

Stability ±0.1°C

Display Resolution 0.1°C to 999.9; 1°C from 1000 to 1200

Cavity Size 20mm diameter

65mm deep

Time to Temperature 20 minutes

Power 110 VAC ±10% (50/60Hz)

2.3kW typical

Dimensions 310mm x 265mm x 200mm (HxWxD)

INFRARED

Weight 15.9 lbs (7.2 kg)

Insulation

Fixed-Point Cell

Key Features

• High-Temperature Radiation
Pyrometer Primary Source

• 0.995 Emissivity

• Accepts Fixed-Point Cells

Insulation

ACCESSORIES

970-06-00A Indium Blackbody Cell

970-06-00B Tin Blackbody Cell

970-06-00C Zinc Blackbody Cell

970-06-00D Aluminum Blackbody Cell

970-06-00E Silver Blackbody Cell

935-14-40 Replacement Probe

931-22-27 Carrying Case

984-00-00 Gas Flow System

HOW TO ORDER

970 Pegasus R Black Body Source

102/infrared calibrators