AMETEK Land LANDCAL Blackbody Calibration Sources

LANDCAL blackbody calibration sources from -10 to 1600 °C

LANDCAL is the AMETEK Land family of six blackbody calibration sources for radiation thermometers, line scanners and thermal imagers. A blackbody source is a heated cavity that behaves very nearly like a perfect emitter, so a pyrometer pointed at it should read the source temperature. Comparing the two shows whether the pyrometer has drifted. Between them the six models cover -10 °C to 1600 °C (15 to 2900 °F), with portable, transportable and bench-mounted formats.

The range is split into primary sources and reference sources. Primary sources contain a certified probe in the radiation cavity for traceability to national standards. Reference sources reach traceability either by comparison with a certified thermometer or by being bought with a calibration certificate. Seven Star LLC supplies LANDCAL in Oman and the GCC as an independent supplier in Muscat; please tell us the model you need.

LANDCAL model overview

Note from the manufacturer: the temperatures are those measured by the source’s own controller; a pyrometer reading may differ by ±2 %.

LANDCAL low-temperature primary sources: P80P and P550P

The P80P and P550P share a compact case of 315 × 260 × 185 mm and a Eurotherm controller with RS232C serial interface. Both use a blackened aluminium cavity with a 120° cone and an emissivity above 0.995. The P80P suits calibrating thermometers around ambient and below, because it can be run from -10 to 75 °C, heating in about 60 minutes from ambient to 75 °C and cooling from 20 to -10 °C in about 90 minutes depending on ambient. The P550P covers process and building-services duties up to 500 °C recommended with about 60 minutes to reach 500 °C.

LANDCAL high-temperature primary sources: P1200B and P1600B2

The bench-mounted P1200B and P1600B2 are intended for laboratory and workshop calibration of high-temperature pyrometers and line scanners. Both have a silicon carbide cavity with emissivity of 0.998 and a stability of better than ±0.2 °C over 60 minutes once at temperature. The P1200B uses resistance wire heating with a type N control thermocouple and a 3 kVA, 220/240 V or 110/120 V supply. The P1600B2 uses six silicon carbide elements, a type R control thermocouple, a Eurotherm master and over-temperature controller, and 7 kVA from a single-phase or three-phase supply. A measuring thermocouple of type B, R or S can be fitted in either.

LANDCAL reference sources: R1200P and R1500T

The reference sources trade a little accuracy for portability. The R1200P weighs 8.8 kg, runs from a selectable 115 V or 230 V supply and reaches 1150 °C in about 25 minutes, with a 30 mm aperture and uncertainty of ±3 K from 400 to 1100 °C when supplied with a traceable certificate. The R1500T is a transportable unit for 500 to 1500 °C: it heats to 1450 °C in 30 minutes, has a 40 mm aperture, a stability of better than ±1 K over 30 minutes and uncertainty of ±3 K from 400 to 1500 °C with certificate. It weighs 26 kg net and draws 3 kVA.

Selecting the right LANDCAL source

• Temperature of your pyrometers. Pick the source whose recommended range covers the measurement points you need to check.
• Primary or reference. Primary sources are best for accredited laboratories; reference sources suit routine site checks and can be bought with a calibration certificate.
• Location. Bench-mounted P1200B and P1600B2 for a laboratory; P80P, P550P and R1200P for portable use; R1500T when you need 1500 °C on site.
• Aperture and cavity size. Check that your thermometer’s target spot fits inside the aperture at the working distance.
• Power. Confirm local mains voltage; the P1600B2 needs 7 kVA, with 2.3 kVA per phase on three-phase supply.
• Wavelength. Reference-source emissivity is quoted at short wavelengths, so check suitability for long-wave thermometers.

Use and care of LANDCAL sources

Allow each source time to reach and stabilise at the set temperature before comparing readings, and use the manufacturer heating times above as a guide. Keep the aperture clear of dust and scale, avoid touching the cavity, and follow the manufacturer’s cooling procedure before moving a hot unit. Controllers communicate over RS232C so settings can be logged. Calibration of the certified probe or reference thermometer in a primary source should follow your laboratory schedule.

Typical LANDCAL applications in Oman and the GCC

Plants in the region use infrared thermometers on furnaces, kilns, boilers, flares and process lines. Heat, dust and the long intervals between turnarounds mean they can drift. A site calibration lab or instrument workshop with a LANDCAL source can check them in-house and support quality audits, rather than shipping pyrometers abroad.

Information to send with a LANDCAL RFQ

• The model (P80P, P550P, P1200B, P1600B2, R1200P or R1500T) or the temperature range you need.
• Type and make of thermometers or scanners to calibrate, and their target size.
• Need for a calibration certificate or accredited traceability.
• Mains voltage and phase.
• Delivery location and quantity.

Documents and quotation

The manufacturer brochure for the LANDCAL range, with specifications for all six models, is attached on this page.

Send us the model number and the range you need and Seven Star LLC will confirm availability and lead time for Oman and the GCC.