RTM-1 reference temperature monitor

The RTM-1 digital reference thermometer is a desktop device designed and manufactured by Gometrics for indicating temperature with a very high level of precision and an extremely high long term stability, giving it a level of reliability only found in sophisticated laboratory instruments.

The measuring circuit of the RTM–1 reference thermometer self-calibrates against an internal resistance standard, ensuring the stability needed for reliable measurements.

The keyboard of the RTM-1 reference thermometer allows the deviation function coefficients to be entered which, when read directly in ºC achieves a precision of 0,01 ºC in any value of the calibrated range between –200 and +200 ºC and 0,02 ºC between +200 ºC and +660 ºC, stable for one year.

 

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Description

ADVANTAGES
  • Accepts thermoresistances type RTD and thermocouple
  • Incorporates a 16 bits microprocessor and a 24 bits resolution convertor A/D
  • Accepts direct reading of mV, V, mA and Ω
APPLICATIONS
  • RTM-1 calibration through reference resistance
  • Calibration of the PT-100 thermoresistance and calculation of desviation coefficients ITS-90
  • Introduction of ITS-90 coefficients on keyboard
CHARACTERISTICS
  • 2 x 20 digit LCD backlit display
  • Response time 2 readings/second
  • Input impedance > 10 MΩ (mV, T/C), 1 MΩ V and 5 Ω (mA)
Data sheet

Display

2 x 20 digits LCD 5,5 mm high, backlighted

Responding time

2 readings/sec

Input impedance

> 10 MOhm (mV, T/C), 1 MOhm V and 5 Ohm (mA)

Power supply

230 Vca ± 10%, 50/60 Hz (optional 110 Vca)

Weight

1,5 Kg

Dimensions

200 x 223 x 90 mm

Storage temperature

-10ºC to 60ºC

Operating time

0ºC to 50ºC

Room humidity

0% to 80% HR without condensation

Temperature coefficient

± 0.0005% RDG/ºC (only resistance measurement)

Temperature coefficient

± 0,001% RDG/ºC

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