TxIsoPack-USB is a fully isolated 4 to 20 mA two-wire loop powered temperature transmitter for in-head assembly. Complete sensor type selection and range configuration is achieved by connecting the device directly to a USB port on your computer. No other interface, converter or driver is required. The isolated and linearized current output represents the sensor input signal according to the temperature sensor selected.
Features:
Specifications:
| Input Sensor: | Configurable |
| Pt100: | 2, 3 or 4-wire, 0.170 mA excitation current |
| Voltage: | 0 to 50 Vdc. Impedance > 1 MΩ |
| Total Accuracy: | Maximum error of 0.3 % of maximum range for thermocouples; 0.2 % of maximum range for Pt100 and voltage |
| Response Time: | <500 mss |
| Isolation: | 1000 Vac for 1 minute between input and output |
| Output: | 4-20 mA current or 20-4 mA, two-wire type; linear in respect to the measured temperature |
| Output Resolution: | 0.004 mA (12 bits) |
| Power: | 12 to 35 Vdc, voltage over the transmitter |
| Maximum Load in series: | RL = (Vdc - C 12) / 0.02Ω ¸ where Vdc is the power voltage |
| Operating Temperature: | -20 to 75°C |
| Relative Humidity: | 0 to 90 % RH |
| Communication cable: | mini-B USB cable, 5 pins |
