Overview
Thermocouple input temperature converter with surge protection function can isolate and convert thermocouple (TC) DC signals into current signals. This temperature converter has built-in cold end compensation and can be intelligently configured. The actual range of the thermocouple can be set through computer software. It has the functions of wire breakage alarm and out of range alarm.
This product requires independent power supply, with isolated power supply, input, and output terminals.
Specifications
| Input | |
| Input signal | K, S, E, J, B, T, R, N thermocouple signals (see "Input Signal Type and Range Table" for details) |
| Input disconnection | The default "low alarm" can be modified to "high alarm" through configuration software |
| Signal range | The measuring range of the corresponding thermocouple is -10~100mV. |
| Measurement range | Users make their own configuration when ordering, and indicate it at the tail number or otherwise. |
| Built-in cold compensation | ±1°C(Compensation range -20°C~ +60°C) |
| Output: | |
| Output signal | DC signal (current/voltage) |
| Output load capacity | Current load resistance ≤500Ω (can be customized) Voltage load resistance <5mA (can be customized) |
| 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) |
| Supply voltage | 20-35VDC |
| Power consumption | Current output <0.8W; voltage output <0.6W (PHG-11TT+ series) Current output <1.2W; voltage output <0.6W (PHG-12TT+ series) |
| LED indicator | Green: Power indicator Low range alarm L1 light on, high range alarm L2 light on |
| 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 |
| Insulation strength | ≥2000VAC/min (between input/output/power supply) |
| Insulation resistance | 100MΩ(500V DC) (between input/output/power supply) |
| Electromagnetic compatibility | GB/T 18268 (IEC 61326-1) |
| MTBF | 800000h |
| Wire requirements | Horizontal cutting surface ≥ 0.5mm2; Insulation strength ≥ 500V |
| Applicable field equipments | K. S, E, J, B, T, R, N TC sensors |
Dimension
Schematic diagram
Note:
1. PHG-11TT+does not include output part 2
2. The power rail function is an optional function, and users need to specify the power supply method when placing an order
The selection of power rail connectors can refer to page 89 of the "Annex"
Specification, model and code
| 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% |
| Output parameter definition | |
| Code | Parameter |
| 1 | 4~20mA |
| 2 | 0~20mA |
| 3 | 0~5V |
| 4 | 0~10V |
| 5 | 1~5V |
| 6 | 0~75mV |
| 7 | 土10V |
| 8 | Customized |
For example: one input and two outputs, thermocouple K (-200~1370°C) input, two 4~20mA outputs, 24V power supply, model: PHG-12TT-111+