LR-Cal PYROS-650 dry block temperature calibrator

Portable and compact
Metal block temperature calibrator
Temperature range +30...+650°C
Accuracy ±0.5°C, stability ±0.3°C
Block: 26 mm diameter
Insertion depth: 150 mm

The calibrator LR-Cal
PYROS 650-DNV
is lightweight and compact

Thermostat test with the LR-Cal PYROS 650 DNV

Switch/Thermostat test with LR-Cal PYROS 650-DNV

Setpoint adjustment with the LR-Cal PYROS 650-DNV

Description

LR-Cal PYROS 650-DNV description

The compact metal block temperature calibrator LR-Cal PYROS 650-DNV serves as temperature source and reference instrument in one, for testing and calibrating temperature measuring instruments of all kinds.

Temperature range +30...+650°C
Type approval by DNV-GL (No. TAA00002CX)
1 dry metal block 26 mm diameter
Compact and lightweight
Power supply 115 VAC or 230 VAC, switchable
Ramp function
Thermostat tests
Various block inserts with different holes for test specimens available
Particularly proven also on board ships (marine industry)
Computer interface (RS232, interface converter RS232-USB available as accessory)

The portable metal block temperature calibrator LR-Cal PYROS 650-DNV has been specially developed for simple and portable use on site. Special emphasis was placed on a low overall weight and easy handling. The housing is made of robust aluminum and many internal parts are made of stainless steel. Each LR-Cal PYROS 650-DNV temperature calibrator is calibrated in the laboratory at the factory.

The thermal parts of the calibrators, i.e. the calibration temperature source, consist of a solid metal block that is heated or cooled with Peltier elements. There are one or more holes in the metal block for inserting the test specimens. Special insert sleeves offer further options for processing test specimens with different diameters. Shorter reaction times during the heating and cooling phases and rapid stabilization save time during multi-point calibration processes.

An innovative ventilation system on the device makes it possible to keep the temperature on the top of the calibrator lower than on devices from other manufacturers. This system does not direct the hot exhaust air upwards towards the test specimens, but out of the housing to the rear.

Thermographic images taken at 650°C:

Abwärme-Abstrahlung auf Prüfling bei Wettbewerbsmodellen

Third-party products: at +650°C the test specimen heats up to approx. 69.6°C

Abwärme-Abstrahlung bei PYROS-Modellen

LR-Cal PYROS devices: at +650°C the test specimen heats up to approx. 27.5°C

As a result, the measuring head of the test specimen and the electrical connections are exposed to a significantly reduced temperature and possible temperature compensation errors are significantly reduced.

Specification

LR-Cal PYROS 650-DNV specification

Description:	Data:
Temperature range (at 20°C ambient temp.)	+35°C...+650°C
Temperature display	Accuracy ±0.5°C ±1 Digit Resolution 0.1° (°C or °F)
Stability of regulated temperature	±0.3°C
Mean heating time (incl. stabilization)	from ambient temperature to 650°C approx. 40 min.
Mean cooling time (incl. stabilization)	from 650°C to 100°C approx. 70 min.
Axial temperature uniformity (measured at 40 mm from the bottom)	at 250°C ±0.6°C at 450°C ±0.5°C at 650°C ±0.5°C
Radial temperature uniformity (measured at 40 mm from the bottom)	at 450°C ±0.15°C at 650°C ±0.6°C
Metal block depth	150 mm usable insertion length
Metal block diameter	26 mm
Block insert material	Nickel-plated brass
Switch/thermostat test function, voltage	On/Off, 5 VDC
Programmable ramp function	0.1...10°C/min
Power supply	115/240 VAC ±10% 50/60 Hz
Power consumption	600 W
Interface	RS 232 (as accessory an USB converter available)
Recalibration possible	Yes, via keypad, at max. 10 temperature points
Case material	Metal (steel)
Weight	approx. 6.5 kg
Dimension	130 x 260 x 280 mm
Order-Code	PYROS-650-DNV

Scope of standard supply

LR-Cal PYROS 650-DNV scope of standard supply

Portable compact dry block temperature calibrator LR-Cal PYROS 650-DNV
Spare fuses
Cable for power supply
Connection cables for thermostat tests
1 insert with 4 holes (3.2 + 5.0 + 7.0 + 10.5 mm)
Removal tool for changing insert sleeves
Factory calibration certificate (performance and accuracy)
Operating manual DE+EN

Available dry block inserts

LR-Cal PYROS 650-DNV available dry block inserts

Code	Description
PYROS-650-INS-0	Insert sleeve without hole(s), for self-drilling
PYROS-650-INS-4	Insert with 4 holes: 3.2 + 5.0 + 7.0 + 10.5 mm diameter 1 piece already included in the device scope of delivery
PYROS-650-INS-3S	Insert with 3 holes: 4.5 + 6.5 + 10.5 mm diameter
PYROS-650-INS-2	Insert with 2 holes: 6.5 + 12.7 mm diameter
PYROS-650-INS-2S1	Insert with 2 holes: 6.5 + 13.5 mm diameter
PYROS-650-INS-1	Insert with 1 hole: 15.7 mm diameter
PYROS-650-INS-1S	Insert with 1 hole: 17.5 mm diameter
PYROS-650-INS-1S1	Insert with 1 hole: 20.0 mm diameter

Other accessories

LR-Cal PYROS 650-DNV other accessories

Shoulder bag

Code: PYROS-TASCHE

Accessory:
Padded shoulder bag
for PYROS devices

Waterproof case

Code: PYROS-KOFFER

Accessory:
Splashproof case
Protection class IP 65
e.g. for marine applications

Aq2Sp2 software

Code: LTC-AQ2SP2

Accessory:
Windows®-PC software
Control of the calibrator from the PC, manual or automatic calibration of one or more test items, load and endurance tests, thermostat tests (incl. hystersis), generation of calibration certificates

Special RS232 cable

Code: RS232-LTC-KABEL

Accessory:
Special RS232 connection cable

RS232/USB- converter

Code: RS232-USB-KONV

Accessory:
Interface converter
RS232 to USB

What is temperature calibration with a metal dry block temperature calibrator?

What is temperature calibration with a metal block temperature calibrator?

The test item (temperature measuring instruments of all types, e.g. dial thermometers, glass thermometers, resistance thermometers, temperature switches, thermostats, etc.) and the reference temperature measuring instrument (installed in the calibrator or external reference) are both subjected to test temperatures. The measured values of the reference are compared with the values of the test item. In this way, a statement can be made not only about the function of the test item, but also about the measurement accuracy or the measured value deviation of the test item.

Please note that the specifications regarding radial and axial temperature uniformity given in the respective technical data refer to specific immersion depths and do not necessarily apply to all immersion depths in every case. The temperature range specifications apply at an ambient temperature of +20°C.

The LR-Cal metal block temperature calibrators have an internal (built-in) reference. If its accuracy is not sufficient, an external reference (without or with its own display) can be used.

The LTC-MP-3I option is available for LR-Cal LTC metal block temperature calibrators (except for versions LTC-DB-0550-60 and LR-Cal LTC-DB-1200-35), with three measurement inputs (2 x for RTD/TC and 1 x for analog signal 4... 20 mA/0...10 V).

The LR-Cal LTC-DB-0550-60 metal block temperature calibrator is available in two versions: standard version and “-2I” version with 2 measuring inputs (for RTD/TC).

This option is not available for the LR-Cal metal block temperature calibrators of the compact PYROS series.

Furthermore, the LR-Cal Aq2Sp2 PC software is available as an option for the LR-Cal metal block temperature calibrators. This allows the calibrator to be completely controlled from the PC via its serial interface, manual or automatic calibration of one or more DUTs, load and life tests, thermostat tests, as well as the generation of calibration certificates.

Synonyms

Metal block temperature calibrators are also referred to as

Dry block calibrator
Dry well calibrator
Calibration furnace
Temperature calibrator
Temperature calibration device
Temperature calibration furnace

LR-Cal PYROS 650-DNVCompact dry block (well) temperature calibrator+30...+650°C