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T240 Thermal Resistance Calibrator

T240 Thermal Resistance Calibrator - Image 2

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.

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
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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