User Guide
Landcal Blackbody Source
Type R1200P
Page 3
2 Description
The LANDCAL blackbody source type R1200P is a portable, self contained unit
designed for use on any reasonably flat surface.
The 55mm/2.2 in diameter cylindrical target with conical end is manufactured
from heat resisting steel. The temperature is measured by a thermocouple
embedded into the target. The temperature is displayed on a digital indicator
having ±1°C/2°F resolution.
The target is heated by radiant energy from a wound element. The source is
fitted with a three term temperature controller which allows the source to heat
up to 1150°C/2100°F within 25 minutes and holds it stable at this temperature
to within ±1°C/2°F.
Fig. 1 Landcal Blackbody Source Type R1200P
CA970259
If the source is used as a transfer source (i.e. calibration by comparison method
adopted) a set of optional standard radiation thermometers will be required.
The selection of standards will depend upon customer requirements, e.g.
working temperature range, type of radiation thermometers to be calibrated etc.
Ideally, the standards should be of a similar type to those being tested, as strict
comparisons can then be made. The standards listed below are recommended:
System 4
Type M1 450/1000C: Calibrated Temperature Range: 450 to 1000°C
Type M1 600/1600C: Calibrated Temperature Range: 600 to 1200°C
Type M2 300/1100C: Calibrated Temperature Range: 300 to 1100°C
Portable
Cyclops 100:
Calibrated Temperature Range: 550 to 1200°C
One standard should be returned each year to LAND Instruments for re-
certification, or at any time when a discrepancy is detected.
