TCA-TPTESU Intrinsically safe special I/O universal signal isolator is a general instrument used for various special input and output signals, external power supply and other special output forms. The application scope of output signals is broad. The output current zero extends to Value 0. Output voltage zero extends to negative value.
Switches signal inputs such as power distribution, current, thermocouple, thermal resistance, millivolt and sliding resistance according to different wiring modes. Setting of the configuration for input signal types or range can be made under during the power-off state. Input is open circuit or short circuit, the output is above the high limit or below the low limit, the default value of the configuration is output greater than 22 mA. The configuration can also be reset.
Thermal resistance input range: 10 Ω~400 Ω; minimum resolution: ±2 mΩ; stability: ±3 mΩ. When the compensating lead error of three-wire input is not less than 50 ℃ range (Pt100), the additive error is not more than ±0.02 ℃.
Thermocouple input voltage range: 4~80 mV; minimum resolution: ±1 μV; stability: ±2 μV. The additive error of cold junction compensation is not more than ±1 ℃.
The maximum range of the sliding resistance is 0-500Ω. When the range is less than 50Ω, the three-wire form should be used for connections. Input mode offsets the lead error. Accuracy ±0.05% FS.
The maximum range of DC millivolt should be 0~100mVDC, and the minimum should be 0~5mVDC, with the accuracy of ±0.05%FS. Minimum resolution: 1μV; stability: 2μV; temperature drift: ±20PPM/℃
The power distribution voltage is more than 16VDC. The power distribution output clamp current can be customized as required, but must be specified upon ordering. The factory default is 28 mA(±2 mA).
For power distribution or current input/output, the typical accuracy value is ±0.05% FS; and the temperature drift is ±0.1 μA/℃.
The output DA converter has 14-digits. The current output load range is 0~550 Ω, and the output current high limit is 25mA. Load change error < ±2 μA/550 Ω. Output voltage internal resistance <250 Ω.
Range of the output current: 0~20 mA, null point and range within this scope can be shifted as required.
Range of the output voltage: -10~+10 VDC, null point and range within this scope can be shifted as required.
During current output application, an external power supply can be used for the output circuit.
The power supply range can be chosen within the range of 20~42 VDC or 15~42 VDC.
The instrument panel of TCA-TPTESU intrinsically safe special I/O universal isolators includes two types: LCD and LED backlight. The LCD can display the input value, output value, or the position number required by the user. In case of no LCD, the LED backlight design shall be used for the instrument panel. There is no power light on the intrinsically safe isolator panel. The power supply indicator is replaced by the basic model printed on the panel. After the power is on, the model on the
panel becomes illuminated by means of LED backlight.
Clamping type structure, a 35 mm DIN standard guide rail clamping type installation is used. Screw terminal, the wire is connected and fastened by M3 screws.
■ Model, model selection and ordering
Model selection example
Example 1. TCA-TPTESU11-UH-V1……1-input & 1-output，Intrinsically safe special I/O universal signal isolator（with power distribution, 4-20mA input, 4-20mA output , an external power supply can be used
for the output circuit 24V, terminal power supply 20-42VDC）
Example 2. TCA-TPTESU11-UC-V1……1-input & 1-output，Intrinsically safe special I/O universal signal isolator（4-20mA input, 1-5V output，terminal power supply 20-42VDC）
Example 3. TCA-TPTESUX11-UA-V2……1-input & 1-output，Intrinsically safe special I/O universal signal isolator, with displays (user must set parameters：K, 0-1000℃ input, 4-20mA output,
guide rail power supply 20-42VDC)
Note: if you select products with guide rail power supply, please order the special power supply DIN guide rail as well.
Optional accessories: Calibrated software CRFW-2000 for winXP and win7 PC
Calibration interface CR-2206 for general products
General product Android calibration interface FAIF-1904
Special power supply DIN guide rail (1 m/pc) PSDR-9000
■ Block diagram/wiring diagram
