
Item | Valve |
General | |
Model | TTH300 |
Type | Two - channel temperature transmitter |
Communication Protocols | HART 5 and HART 7 (switchable), PROFIBUS PA 3.01, FOUNDATION Fieldbus ITK 5.x |
Sensor Inputs | Two universal sensor inputs, each for RTD, thermocouple, Ω, mV |
Accuracy | 0.1% |
Long - term Stability | 0.05% per year |
Sensor Redundancy | Supports sensor redundancy and automatic sensor redundancy switching (e.g., 2 x PT100 3 - wire connection and other sensor combinations). Redundancy behavior configurable for increased availability, safety, or accuracy (HART variant) |
Calibration Methods | One - point, two - point, Callendar - van - Dusen, freestyle characteristics with 32 supporting points |
Diagnostic Functions | Wire break/corrosion monitoring in accordance with NE 89; device status signaling and freely configurable diagnostic categorization with diagnostic history according to NE 107 (HART variant); event monitor for logging critical events (HART variant); configuration monitor for configuration changes (HART variant) |
Explosion - proof Approvals | ATEX, IECEx, Zone 0, FM/CSA, EAC, EAC - EX, NEPSI |
Output Signal | 4 - 20 mA with HART protocol overlay for HART version; PROFIBUS PA and FOUNDATION Fieldbus have their respective standard output signals |
Functional Safety | SIL 2/SIL 3 in accordance with IEC 61508 (HART variant) |
LCD Indicator | Optional turnable LCD indicator with operating buttons |
Environmental Temperature Range | Typically -40 °C to +85 °C (varies depending on explosion - proof type and specific application conditions) |
Enclosure Protection Class | IP20 (suitable for integration into DIN - standard A - type and B - type sensor junction boxes) |
Material | Polycarbonate |
Color | Gray RAL 9002 |
Sealing Compound | Hard sealing compound |