For TCA-TP11BJ, one set of relay contacts are added on the basis of universal signal input intrinsically safe isolator for the alarm output of power distribution, current, thermal resistance, thermocouple, millivolt signal, sliding resistance, etc. Possessing the function of isolating intrinsically safe isolator, it is a multi-function intrinsically safe instrument integrating a signal alarm, signal transmitting and isolation.
The safe universal signal isolator switches signal inputs such as power distribution, current, thermocouple, thermal resistance, millivolt and sliding resistance in various wiring modes. Input signals can complete the configuration settings by means of the calibration software and interfaces(accessories optional). Configuration parameters only include three items, i.e. signals (or graduation), null point and full scale, which can be conducted in the state of no power. The accuracy after normal use is greater than 0.03%FS. 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
22mA. 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 signal can be extended from 4~20 mA to 0~20 mA.
The output self-adaptive load is 0~800 Ω
The power supply range can be chosen from within range of 20~42VDC or 15~42VDC.
See the “Technical Data Sheet” in the specifications for current consumption or other functional indices.
The instrument panels for Universal signal alarm setting isolator include 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. After the power is on, the model on the panel becomes illuminated by means of the 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-TPHX11BJ-BJ-UA-V1 ……Intrinsically safe universal signal alarm setter isolator, HART communication, with displays, two alarm
（Pt100，0~300℃ input，4~20mA output，terminal power supply 20~42VDC）
Example 2. TCA-TP11BJ-UA-V2……Intrinsically safe universal signal alarm setter isolator, one alarm（4~20mA input，4~20mA output，guide rail power 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
