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249-202 Draagbare temperatuurcalibrator

249-202 Draagbare temperatuurcalibrator

+200...+1100°C; Pt100; thermokoppel E, J, K, N, R, S

  • +200°C...+1100°C
  • 392°F...+2012°F
  • °C - °F - K
  • Visselbare blok
  • Pt100 3/4 draad
  • Thermokoppel E, J, K, N, R, S

EUR 5760.00
excl. BTW

Artikelcode: 249-202

249-202  Draagbare temperatuurcalibrator

  • Productinformatie

The portable thermostatic calibrator EJB 249-2021 has been designed to carry out laboratory and field checks of thermocouples and Pt100; it consists of a tubular vertical well with an internaceramic pipe and an interchangeable equalising block.

The version  EJB 249-2021 is equipped with a data acquisition card and two adjustable input devices (Pt100 3/4 wires; thermocouples: E, J, K, N, R, S) with gold-plated contacts and automatic compensation of the cold junction.
The REF input device is for the reference sample probe; this calibration system is provided with EC test certificates and it is in accordance with ISO 9000.

  • Operating range : +200...+1100°C (392...2012°F)
  • Stability : 0,3°C (at +1000°C°) (0.5... at 2012F)
  • Uniformity (at 1000°C / 183°F) :
  • - Radial : 0,4°C (at 40 mm) 0.7°F (at 1.5 in.)
  • - Axial : 0,4°C (for 60 mm from the bottom)
  •           : 0.7°F (for 2.3 in. from the bottom)
  • Mean heating time : 18°C/min (64°F/min)
  • Mean cooling time : 6°C/min (42°F/min)
  • Display resolution : 0,1°C / 0,01°F (all temperatures)
  • Display accuracy : 3°C (37°F)
  • Units of measurement : °C - °F - °K
  • Serial interface : RS232
  • Well diameter : 44 mm
  • Insert hole depth : 220 mm / 7.8 in. (included insulator)
  • Power supply : 115 or 230 VAC - 50/60 Hz
  • Electric power : 850 W
  • Calibrator size : 170 x 450 x 330 mm (6.6 x 17.7 x 12.9 in.)
  • Packaging size : 370 x 450 x 600 mm (14 x 17 x 23 in.)
  • Calibrator weight : 12 kg (26 lb)
  • Packaging weight : 18 kg (39 lb)

The equalising block, whose large size suits the external dimensions, ensures a proper heat transmission as well as optimal stability and uniformity values; its interchangeability makes it possible to test sensors of various lengths, with diameters ranging from 1 mm up to 26 mm. The block of the standard equipment has 4 holes (diameter: 7, 9, 11 and 13,5 mm); on request, further versions with different kinds of holes are available.

EJB 249-202 is equipped with a counter-current forced air cooling system, which keeps the temperature low in the upper part of the well; this system enables to check even very short probes, without heating the connecting head or the handgrip.

EJB 249-202 is provided with a new PID controller, whose microprocessor ensures resolution values up to 0,01°C as well as °C, °F and °K reading; it also enables to set the up/down ramps and to memorise the operative temperature of the thermostats.

The EXT input device is for the probes that are being tested; hence the instrument can display the temperature of the well, of the sensor to be tested and of the reference sample probe, at the same time.

Furthermore, EJB 249-202 is provided with the serial interface RS232; once it is connected to a PC, it can operate automatically, by means of the software EJB 241-300, which enables to carry out probe calibrations, thermostats tests and cycle life tests; test results can be stored and printed and they are easily traceable in conformity with ISO 9000 standard values.

- Control and calibration of temperature sensor, and the laboratory and in the field, in conformity with ISO 9000 standards
- Control of thermostats.
- Automatic computer-controlled calibrations.

Standard delivery
- EJB 249-202 calibrator
- Ceramic equalizing block with 4 holes (diam. 7 - 9 - 11 - 13,5 x 155 mm)
- Top insulator with four holes
- Block extractor
- Power supply cable
- Fuses kit
- Thermostat testing connection cable
- Test report
- Instruction manual
- RS232 serial interface
- Kit of clamp connections

Accessories on demand
- Ceramic equalizing block-single hole dia. 26 mm
- Inconel 600 equalizing blocks with required holes + insulator
- 241-300 Software