Introduction, Presentation – ABUS Technologies ATxBlock Temperature Transmitter User Manual
Page 4
ABUS TECHNOLOGIES INC.
4
ATxBlock
1. INTRODUCTION
The ATxBlock is a 2-wire in-head temperature transmitter, microprocessor
based designed for the flexibility of accepting mV, Pt100 and a variety of
thermocouples as the input sensor. The ATxBlock delivers a scalable linear 4-20mA or
0-10V output signal proportional to the sensor temperature. User-friendly configuration
software is provided for parameter setup, including sensor type, temperature range,
filter, etc.
2. PRESENTATION
Technical Parameters
Sensor input:
User defined. The supported sensors are listed in table 6.2 ATxBlock
Input Sensors, along with their maximum ranges and minimum span.
Thermocouples:
Types J, K, R, S, T, N, B and E, according to IEC 60584 (ITS-90).
Impedance >> 1 M
Pt100:
Excitation: 180 A.
2 or 3-wire connection (for 2-wire sensors, tie terminals 2 and 3
together).
= 0.00385, according to IEC 60751(ITS-90).
Voltage:
0 ~ 50mV dc.
Impedance: 1 M
Total accuracy:
Better than 0.25% of the maximum range for thermocouples and 0,15%
for Pt100 and voltage;
Response Time:
< 100 ms;
Output:
2-wire 4-20 mA, linear with respect to the measured temperature.
Resolution:
0.004 mA (12 bits).
Power supply:
12 to 35 Vdc, across the transmitter;
Maximum load (RL):
RL (max.)= (Vdc – 12) / 0,02 []
Where: Vdc= Power supply voltage
Operating Temperature:
-40 to 85 °C
Humidity:
0 to 90% RH
Electromagnetic compatibility: EN 50081-2, EN 50082-2
Polarity inversion protection: Internal
No isolation between the sensor and the 4-20mA loop.
Cold junction compensation for thermocouples.