Overview
Isolated safety barrier at detection side: PHD-11HT-*1, thermocouple signal input, single input and single output.The safety barrier can realize the conversion of thermocouple signal input in dangerous
area into 4~20mA signal output and transmit it to safe area. The circuit has one thermocouple input and one DC signal 4~20mA output.
The output 4~20mA signal can be intelligently configured, and the actual measuring range can be set by computer.
PHD-11HT-*1, "*" indicates the input type of thermocouple, please use code to indicate it.
This product needs independent power supply.
| Input signal types and measurement range | ||||
| Code | RTD model | Measurement range | Minimum range | Conversion accuracy |
| 1 | G53 | -50~150℃ | 20℃ | 0.2℃/0.1% |
| 2 | G50 | -50~150℃ | 20℃ | 0.2℃/0.1% |
| 4 | Pt100 | -200~850℃ | 20℃ | 0.2℃/0.1% |
| 6 | Pt1000 | -200~850℃ | 20℃ | 0.2℃/0.1% |
| 7 | Ni1000 | -60~250℃ | 20℃ | 0.2℃/0.1% |
Example: when the input is with K-couple, temperature range is 0~1200℃, output 4~20mA, power supply 20~35VDC, then the model should be PHD-11HT-11 (0~1200℃).
The measuring range can be set to the specified 0~1200℃ range by computer.
Specifications
| Supply voltage | 20~35VDC, power consumption<1.2W (when power supply 24VDC, output 20mA) |
| Input signal | K, S, E, J, B, T, R, N, TC Signals |
| Output signal | 4~20mA |
| Signal and measurement range | Measurement range: When make an order, the user shall make the configuration by himself, which shall be indicated in the tail number or extra explained |
| Allowable output load capacity | 0~500Ω (customizable) |
| Alarm indication | L1 light is on at low-measurement range alarm; L2 light is on at high-measurement range alarm |
| Channel number of input and output | 1 input 1 output |
| Applicable field devices | K, S, E, J, B, T, R, N TC sensors |
| Output accuracy | 0.1%F.S (Typical value: 0.05%F.S) |
| Cold junction compensation | ±1℃ (Compensation range -20℃-+60℃) |
| 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 | Between intrinsically safe side and non-intrinsically safe side (≥3000VAC/min);between power supply and non-intrinsically safe side (≥1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| External dimensions | Thickness 15.8mm * width 104.8mm * high 116.1mm |
| Electromagnetic compatibility | According to IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
| Explosion-proof mark | [Exia Ga]IIC, [Exia Da]IIIC |
| Certification body | CQST (China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
| Certified parameters (between terminals 3-1) | Um=250V Uo=8.4V Io=31mA Po=65.1mW Co=4.8μF Lo=20mH |
| Installation site requirements | It can be connected with instruments in 0 zone with ⅡA, ⅡB, ⅡC dangerous gas |
| MTBF | ≤100000h |
Wiring diagram
