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TCA-TP universal signal barrier
· Multi-channel. General purpose signal (RTD/TC/mV/mA), intrinsically safe input. Configurable settings. LCD (or OLED) display. 0/4~20mA output. Support HART communication. Terminal supply or DIN rail power supply is available.
· The TCA-TP Universal Signal Barrier is used to connect thermal resistance, thermocouples, millivolts, transmitters (distribution) or current sources in hazardous areas on site. After isolation, it is converted to a standard current signal output to the safety zone control system or other instruments.
· Switching power distribution, current, RTD, thermocouple, and millivolt signal input can be switched according to different wiring methods. The input signal type or range can be configured via software.
· LCD display or OLED display (optional).
· Support for HART communication (optional).
· This product requires a separate DC power supply. Voltage-type magnetic isolation between power supply-input-output.
Model /Selection Table:
Option |
Model and code |
Description |
Basic model |
TCA-TP |
Universal signal barrier |
Special features |
H |
HART communication (only available for one channel input option) |
X |
LCD display |
|
O |
OLED display |
|
|
Default, no special function |
|
Channel form |
11 |
1 in 1 out |
12 |
1 in 2 out |
|
22 |
2 in 2 out |
|
Input signal (Note 1) |
-U |
General purpose signal(RTD , TC , mV , mA) |
Output signal |
A |
4~20mA |
B |
0~20mA |
|
Z |
Special order (Note 2) |
|
Power supply voltage |
-V1 |
Power supply (terminal) 20~30VDC |
-V2 |
Power supply (rail) 20~30VDC (Note 3) |
|
Service Code |
-QC9A |
Product Service Code |
Indication Example 2: TCA-TPH12-UA-V1-QC9A ...... 1 input and 2 output, universal signal safety barrier, support HART communication, output signal 4 ~ 20 mA, terminal power supply 20 ~ 30VDC. Example 3: TCA-TP22-UA-V2-QC9A ...... 2 in 2 out, universal signal safety barrier, output signal 4 ~ 20 mA, rail supply 20 ~ 30VDC. |
Technical data:
Size:
Width |
12.7mm |
Height |
119.3mm |
Depth |
115.7mm |
Housing Material / Color |
PC(Polycarbonate)+PPT Material / Black Gray |
Protection level |
IP20 |
Environmental conditions:
Ambient temperature |
-20~+60℃ |
Ambient temperature (storage or operation) |
-40~+80℃ |
Ambient humidity (operation) |
5~95%RH (no condensation) |
Input (intrinsically safe):
Available Sensor Types(RTD) |
Pt100 Thermal Resistance |
Available sensor types(TC) |
K,E,S,B and other thermocouples |
Temperature measurement range |
depends on sensor type |
Millivolt signal |
0~100mV |
Current signal |
4~20mA 或 0~20mA |
Distribution voltage to the transmitter |
≥16V (at 20mA) |
Output:
Current output signal |
4~20mA ; 0~20mA |
Maximum current output signal |
22mA(±1mA) |
Current Output Load |
Adaptive Load 0~300Ω (factory default) |
Output ripple |
<10mV p-p |
Output status when input overload or open circuit |
· When the thermal resistance or thermocouple input is open: output current <3.5mA (lower limit) or >21mA (upper limit) |
Power supply:
Rated supply voltage |
24VDC |
Power supply voltage range |
20~30VDC |
Maximum current consumption |
<50mA |
General parameters:
Standard accuracy |
Typical value±0.1%FS |
Zero migration range |
-10~100mV 或0~385Ω |
Range migration range |
3.8~100mV或12.8~400Ω |
Output resolution |
<3.8~100mV or 12.8Ω~400Ω range, 1μA |
Thermocouple input, cold junction compensation error |
±0.5~1℃ (compensation range -15~+75°C) |
Thermal resistance input, wire resistance effect |
Thermal resistance three-wire input (≤10Ω/line), <±0.005 %/Ω |
Load change effect |
±2μA |
Temperature drift |
· -10~35 mV range: 0.0005% or 0.6μV (whichever is larger) |
Power-on or storage time drift |
±2μA (180 days) |
Response time |
<1s |
Power-on stabilization time |
<5s |
Maximum withstand voltage |
Input-output-power supply: 2500V AC RMS / 1 minute |
Protection parameters |
· Power-on shock protection, power-on slow start >20ms · Distribution protection, distribution output clamp current 28mA (±4mA) B. Input-output-power supply can withstand 2500V RMS/1 minute without damage. C. The short circuit or open circuit formed by the misconnection of the terminal is not damaged. |
Electromagnetic compatibility (EMC) |
in accordance with IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
LCD (or OLED) display / LED indication |
· LCD (or OLED) display: |
Applicable occasions |
Installed in a safe place, can be connected with intrinsically safe equipment in Zone 0, Zone 1, Zone 2; IIC, IIB, IIA; T4~T6 danger zone |
Field device suitable for connection |
Thermal resistance or thermocouple temperature sensor, millivolt signal, transmitter or current source signal |
Mounting method |
Horizontal or vertical mounting, can be mounted on standard 35mm DIN rail (or dedicated busbar backplane powered DIN rail) |
Wiring parameters:
Rigid conductor cross section (min/max) |
0.5mm²/2.5mm² |
Flexible conductor cross section (min/max) |
0.5mm²/2.5mm² |
Minimum Conductor Cross Section (AWG)) |
24 |
Maximum Conductor Cross Section (AWG) 14 |
14 |
Stripping length |
7mm |
Connection type |
M3 screw fastening connection |
Screw torque |
Up to0.6Nm |
Explosion-proof parameters:
Name |
Temperature converter operation (terminals 1-2-3;5-6-7) |
Isolator operation (terminal 1-2;5-6) |
Distributor Operation (terminals1-4; 5-8) |
Maximum output voltage (Uo) |
4.6VDC |
4.6VDC |
26.2VDC |
Maximum output current (Io) |
40mA |
290mA |
127mA |
Maximum output power (Po) |
0.05W |
0.34W |
0.83W |
Maximum external inductance (Lo) |
14mH |
0.21mH |
1.5mH |
Maximum external capacitance (Co) |
100μF |
100μF |
0.05μF |
Maximum safety voltage (Um) |
250VDC/AC |
Certification/Standards:
CE certification |
in line with CE standards |
National Explosion-proof Electrical Product Quality Supervision and Inspection Center (CQST) certification |
[Ex ia Ga] IIC conforms to GB 3836.1, GB 3836.4, GB 3836.20 |
Product drawing / terminal wiring diagram: