Descripción general del producto
El NCS-TT306H is a high-performance 4-20mA Temperature Transmitter with integrated HART 7 communication. Engineered for precise process measurement, this Transmisor de temperatura HART supports universal RTD (Pt100, Cu50, Pt1000) and Termopar (B, E, J, K, N, R, S, T) sensor inputs, as well as resistance and millivolt signals. Available in head-mounted and rail-mounted versions, it delivers reliable digital temperature conversion for demanding industrial applications.
As a fully digital Temperature Transmitter with HART 7, it enables seamless asset management, remote configuration, and multi-variable monitoring, directly replacing legacy analog transmitters with a smarter, field-proven solution.
Key Specifications at a Glance
| Parámetro | Especificaciones |
|---|---|
| Output Protocol | 4-20 mA (with current reversal) + HART 7 (Burst mode supported) |
| Primary Inputs | RTD Temperature Transmitter mode: Pt100, Cu50, Ni100, etc. Thermocouple Temperature Transmitter mode: B, E, J, K, N, R, S, T, etc. |
| Precisión de la medición | RTD: ±0.1°C (Pt100 at 25°C) TC: ±0.4°C (K-type) Current output: ±0.05% of span |
| Functional Safety | SIL 2/3 capable (IEC 61508) for safety instrumented systems |
| Damping Time | 0 – 32 seconds (field adjustable) |
| Aislamiento | 2kV AC electrical isolation |
| Voltaje de alimentación | 10 – 45 V DC (standard) / 10 – 30 V DC (IS/SIL models) |
Prioritized Product Highlights
1. Universal Sensor Compatibility – Direct Replacement for Legacy Units
This RTD Temperature Transmitter also functions as a Thermocouple Temperature Transmitter, supporting 2-, 3-, or 4-wire RTDs and 8 standard TC types. It accepts resistance (0~40000Ω) and mV (-100~100mV) inputs, making it a versatile drop-in replacement for most existing temperature sensors in the field.
2. High Accuracy with Low Temperature Drift
Maintains ±0.1°C accuracy for Pt100 RTDs and ±0.4°C for K-type TCs at 25°C, with a current output accuracy of 0.05%. The ultra-low temperature drift ensures stable measurement under harsh ambient temperature variations.
3. SIL Functional Safety for Critical Loops
For safety-certified models, the transmitter supports SIL mode with fixed diagnostic alarm levels. When entering SIL mode, the device locks configuration parameters and performs a rigorous self-diagnostic boot-up sequence, ensuring fail-safe operation in emergency shutdown (ESD) systems.
4. Advanced Diagnostics & NAMUR NE43 Compliance
Full self-diagnostics include sensor burnout (open/short circuit), device overtemperature, and corrosion detection. Configurable saturation currents (3.8 mA / 20.5 mA) and alarm currents (3.6 mA / 21.75 mA) comply with NAMUR NE43, allowing clear distinction between valid measurements and fault conditions.
5. Optional Dual-Channel with Hot Backup Redundancy
(Only for dual-channel models) – When the primary sensor fails, the transmitter automatically switches to the backup sensor without interrupting the 4-20mA loop current. This hot backup feature ensures maximum process uptime for critical temperature points.
6. Local LCD & On-Site Button Configuration
Equipped with a dot-matrix LCD and three local buttons ([M], [S], [Z]), engineers can adjust range, units, and damping directly in the field without a handheld communicator.
Supported Sensor Types
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RTD Sensors: Pt50, Pt100, Pt200, Pt500, Pt1000 (Callendar-Van-Dusen), Cu50, Cu100, Ni100, Ni120, etc.
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Thermocouple Sensors: B, E, J, K, N, R, S, T, L_GOST, A/C/D (W-Re alloys), NiCrAuFe, CuAuFe.
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Resistance: 0~500Ω / 0~2000Ω / 0~4000Ω / 0~40000Ω.
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Millivolt: -100mV ~ +100mV.
Typical Applications
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Oil & Gas pipeline monitoring
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Chemical reactor temperature control
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Power plant boiler and turbine bearing monitoring
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Metallurgical furnaces and heat treatment lines
Configuration & Software
Use the HartMPT software (by Microcyber) or standard HART handheld communicators (e.g., Emerson 475 / AMS) to:
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Modify Tag, Descriptor, and Polling Address (0–63).
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Set LRV/URV for 4mA and 20mA outputs.
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Configure dynamic variable mapping (Sensor 1, Sensor 2, Average, Difference, Sum).
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Perform 16-point linearization to improve overall measurement linearity.
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Enable/disable Burst mode for fast cyclic communication.
Ordering Information
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Montaje: Head-mounted (NCS-TT306H) or DIN-rail mounted (NCS-TT306H-R).
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Protección contra explosiones: Non-incendive or Intrinsically Safe (Ex ia).
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Pantalla: With or without backlit LCD and push-buttons.
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SIL Certification: Available on request for safety loops.
About Microcyber
Backed by the Chinese Academy of Sciences (Shenyang Institute of Automation), Microcyber is an ISO 9001-certified manufacturer specializing in industrial communication and process instrumentation. With over 200 large-scale automation projects delivered globally, we provide reliable, standards-compliant products for mission-critical environments.
