T240 Thermal Resistance Calibrator

All Tinycal series instruments are dual function: generation/simulation and measurement. Keys on the instrument’s front panel enable configuration for generation of set values in either engineering units or percentages. Panel keys also enable generation in steps that can be timed for 1 to 9 seconds per step, which it memorizes thanks to its 6 configuration keys. Simulation from the instrument —T240 and T250— can be configurated to simulate the sensor response (Pt100 or type of thermocouple selected).

The measurement function is easily selectable with the IN/OUT button, as clearly indicated on the display, which indicates the value to be measured. To prevent possible connection or manipulation errors, the measurement circuit is protected againstshort-circuits and external voltage up to 30 V, guaranteeing the instrument longer service life. The T220 and T225 models of Tinycal family are equiped with an integrated 24-V dc sypply, enabling power supply to the loop from the calibrator (active mode), or volontarily in passive mode.

All the instruments of the Tinycal family offer high precision and high-resolution measurements, which, together with their ease of use, high reliability and convenient transport, as well as reduced weight and small size, make them basic standards in an instrumentation workshop.

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Description

ADVANTAGES
  • Measurement/Generation with one unique tool
  • Great precision
  • High resolution
APPLICATIONS
  • Calibration of transmitters 4-20 mA and 0-10V, Pt100 probes, TC and pH
  • Measurement and generation/simulation
CHARACTERISTICS
  • In anticipation of possible connection or manipulation errors, the measuring circuit is protected against short-circuit and external tensions until 30V
  • Rechargeable batteries with great autonomy
Data sheet

Technical features common in the Tinycal series

Operational temperature

0 to 50 ºC

Temperature coefficient

0,003% /ºC

Power supply to loop

24 Vcc (models T220 / T225)

Rechargeable batteries

NiMH

Runtime

16 hours

Power supply to batteries charger

230 V 50 Hz

Display

LCD, 41/2 digits, 10 mm high

Dimensions

83 x 152 x 33 mm

Weight

240 to 300 gr.

Generation

Manual or automatic

Step time

Programmable between 1 and 9 seconds

Label

EC

Warranty

2 years

Tinycal T240 Thermal resistance calibrator

Signal

Resistencia and Pt100 (as per IEC 751)

Simulation range

2 years80 to 390 Ohms (-50 to 850 ºC) (simulation current is 0,1 a 2 mA)

Simulation response

2 mS (accepts pulsating transmitters/indicators)

Accuracy at 23ºC ± 3ºC

-50 to 150 ºC: 0.1 ºC (up to 850 ºC:0.2 ºC)

Uncertainty 1 year

-50 to 150 ºC: 0.2 ºC (up to 850 ºC: 0.4 ºC)

Measurement range

2 years20 to 320 Ohms (-220 to 600 ºC) (current applied 1mA aprox.)

Input impedance

>10 M Ω

Accuracy at 23ºC ± 3ºC

-220 to 150 ºC: 0.1 ºC (± 1 count); up to 600 ºC: 0.2 ºC (± 1 count)

Uncertainty 1 year

220 to 150 ºC: 0.2 ºC (± 1 count); up to 600 ºC: 0.4 ºC (± 1 count)

Resolution

0.1 Ohm or 0.1 ºC/0.2 ºC

Function

Measurement and generation/simulation

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