Fisica III

The temperature transmitters with 2 wires IOPE, are mounted in the head of the sensor element (thermocouple or thermoresistance), excusing the use of compensating and extension wires and cables for acquisition of the temperature of the system and reducing the number of conductors, since its electric feeding is for the same pair of wires of the exit (copper wires).

Being universal, the temperature transmitters IOPE are fit for any type of thermocouple and for any band of temperature, requiring only one new calibration. This characteristic makes not necessary a great number of parts stored, but only two types, the TW-T/C for any type of thermocouple and the TW-PT for thermoresistance PT-100.

The transmission in chain (4 to 20mA) proportional to the measured temperature makes the measurement immune to spurious electric noises that may intervene with the measurement system of temperature; guarantying larger precision, farther distances between the sensor and the receiving instrument and lesser costs of installation.

Its installation becomes sufficiently simple once it fits almost all the types of heads, eliminates trays and conduits separated by cables, moreover it does no require coating, twists and grounding in the cables of interconnection to the instrument.

TECNICAL FEATURES:

- Universal Entrance for Thermocouple and Thermoresistance PT-100

- Output 4~20mA

- Compensation of the Junction of Reference for Thermocouples

- Burn-Out Protection for Thermocouples and Thermoresistances

- Protection against Reverse Tension and Overtension

- High Thermal Stability

- Robust Construction

- High immunity to noises

- Operating temperature: 0 to 60ºC

TECHINICAL FEATURES:

Features Thermocouple Thermoresistance

- Supply voltage (two wires) 12 to 36V cc 11,6 a 40Vcc

- Maximum load resistance in ohms RL = (See volt. -12) vs 50 RL = (V. Alim. -11,6) x 50

- Precision ±0,15%.Span (Typical)

±0,25%.Span (maximum) ±0,15%.Span (Typical)

±0,25%.Span (maximum)

- Linearity ±0,15%.Span (Typical)

±0,25%.Span (maximum) ±0,15%.Span (Typical)

±0,25%.Span (maximum)

- Histeresis ±0,25%.Span (maximum) ±0,15%.Span (Typical)

- Variation temperature Error (±0,01%.Span/ºC) (±0,05%.Span/ºC)

- Compensation reference junction Error

for thermocouples ±1,0ºC

--Voltage (rejection) ±0,012%.Span/V(max.) ±0,02%.Span/V (max.)