Description
Honeywell STT700 is a high-accuracy, SIL-rated smart temperature transmitter engineered for advanced industrial applications. It converts RTD/thermocouple inputs into a stable 4–20 mA/HART signal with exceptional drift performance and long-term reliability. Ideal for critical temperature loops in pharma, refineries, HVAC energy systems, boilers, chemical reactors, heat exchangers, and clean utilities.
Honeywell STT700 — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Transmitter Type | Smart temperature transmitter (Head / Rail / Field mounting options) |
| Output Signal | 4–20 mA with HART |
| Input Compatibility | RTD (Pt100 / Pt1000), TC (J, K, T, R, S, B, N, E), Ohms, mV |
| Accuracy | ±0.10% of span (premium accuracy grade) |
| Long-Term Stability | < ±0.05% span per 5 years |
| Safety Rating | SIL2 / SIL3 certified for safety loops |
| Temperature Range | –200 °C to +1200 °C (depending on sensor type) |
| EMI/EMC Protection | Industrial hardened, Class A immunity |
| Diagnostics | Full HART diagnostics, open sensor, drift detection, loop integrity |
| Response Time | < 0.4 seconds |
| Power Supply | 11 to 42 V DC |
| Housing / Mounting | DIN head-mount / field mount option |
| Ingress Protection | Up to IP67/IP68 in field housing |
| Configuration Options | HART communicator / Honeywell Smart Config / PC software |
| Common Industries | Pharma, oil & gas, chemical, HVAC, refinery, boiler control, solar thermal, dairy processing |
| Approvals | ATEX, IECEx, FM/CSA, SIL, CE |
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