Surge Protection Type Isolated Safety Barrier
- Isolated Safety Barriers
- Signal Isolators
- Surge Protective Devices
- Safety Relays
- Isolated Intelligent I/O Modules
- Intelligent Gateways
- Industrial Data Optical Transceivers
- Online Dew Point Analyzers
- Data Acquisition Modules
- HART data converter
PHD-11TT-*8+
Overview
The thermocouple input isolation safety barrier with surge protection function can transmit the millivolt signal from thermocouple (TC) in the dangerous area to the safe area in 1: 1.
This product requires independent power supply, with isolated power supply, input, and output terminals.
"*" represents the input type of the thermocouple, and the specific model is represented by a code (see "Input Signal Type and Range Table" for details).
|
Input signal types and measurement range |
||||
|
Code |
TC model |
Measurement range |
Minimum range |
Conversion accuracy |
|
1 |
K |
-200~1370℃ |
50℃ |
0.5℃/0.1% |
|
2 |
S |
-50~1760℃ |
500℃ |
1.5℃/0.1% |
|
3 |
E |
-140~1000℃ |
50℃ |
0.5℃/0.1% |
|
4 |
J |
-160~1200℃ |
50℃ |
0.5℃/0.1% |
|
5 |
B |
250~1800℃ |
500℃ |
1.5℃/0.1% |
|
6 |
T |
-200~400℃ |
50℃ |
0.5℃/0.1% |
|
7 |
R |
-50~1760℃ |
500℃ |
1.5℃/0.1% |
|
8 |
N |
-200~1300℃ |
50℃ |
0.5℃/0.1% |
| Input in harzadous area | |
| Input signal | K, S, E, J, B, T, R, N thermocouple signals (see "Input Signal Type and Range Table" for details) |
| Signal range | The measuring range of the corresponding thermocouple is -5~60mV. |
| Safety side output: | |
| Output signal | Thermocouple 1: 1 |
| Surge protection features: | |
| Nominal discharge current ln(8/20μs) | 5kA |
| Voltage protection level Up(8/20μs): | 60V(line to line) |
| Voltage protection level Up(8/20μs): | 600V(line to ground) |
| According to standards | GB/T18802.21-2016(equivalent to 1EC61643-21:2012) |
| LED indicator | Green: Power indicator |
| Output accuracy | Please refer to the "Input Signal Type and Range Table" for details |
| Response time | Reaching 90% of the final value within 300ms |
| Temperature drift | 0.005%F.S/℃ |
| Temperature parameters | Working temperature: -20℃~+60℃, storage temperature:-40℃~+80℃ |
| Relative humidity | 10%~95% RH no condensation |
| Dielectric strength | Between intrinsically safe side and non-intrinsically safe side (≥ 3000VAC/min); |
| between power supply and non-intrinsically safe terminal (≥ 1500VAC/min) | |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| Electromagnetic compatibility | According to IEC 61326-1(GB/T 18268), IEC 61326-3-1 |
| MTBF | 100000h |
| Wire requirements | Horizontal cutting surface ≥ 0.5mm2; Insulation strength ≥ 500V |
| Applicable field equipments | K. S, E, J, B, T, R, N TC sensors |
| Installation place | Installed in a safe zone, it can be connected to intrinsic safety instruments in hazardous areas up to Zone 0, IIC, Zone 20, and IIIC |
| Intrinsically safe certification | |
| Explosion proof mark | [Ex ia Ga]lIC [Ex ia Da]lllC |
| Explosion-proof standard | GB/T3836.1-2021 GB/T3836.4-2021 |
| Terminals 3-4 | Um:250V AC/DC Uo=8.4V DC lo=31mA |
| Po=65.1mW Co=4.8μF Lo=20mH | |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
PHD-11TC-33A-23
