NCS-TT305 series HART temperature transmitter/HART temperature transmitter
- : Microcyber
- : Liaoning, China
- : In Stock
- : 500 Sets/Month
NCS-TT305 HART Temperature Transmitter
High-precision, low-drift field transmitter for petroleum, chemical, power and metallurgy industries:
1. 0.1-level accuracy, PT100 drift down to ±0.003℃/℃, supports -55℃ ultra-low temperature operation
2. Dual-chamber anti-corrosion aluminum housing, SIL/IECEx certified for explosion-proof hazardous areas
3. Complies with IEC61326 EMC standard, features sensor drift detection for higher data reliability
4. Supports HART 7.9 & BURST mode, with LCD keypad configuration, EDD/FDI/DTM files for easy system integration
NCS-TT305 series HART temperature transmitter
The NCS-TT305 series HART temperature transmitter is a high-precision, low-temperature-drift, and high-reliability product, an indispensable field device in process control. This device integrates a rich set of functional modules, enabling both general detection functions and complex control strategies.
The NCS-TT305 utilizes digital technology, is compatible with various RTD and thermocouple sensors, has a wide measuring range, a simple interface between the field and control room, and significantly reduces installation, operation, and maintenance costs.
The NCS-TT305 series temperature transmitter supports 4-20mA+HART protocol and LCD display, and can be widely used in industries such as petroleum, chemical, power, and metallurgy.
NCS-TT305 series HART temperature transmitter Features:
Dual-chamber design, corrosion-resistant low-copper aluminum alloy housing, copper content less than 0.2%
LCD display and button parameter configuration
Electromagnetic compatibility (EMC) complies with IEC61326 standard
Provide EDD, FDI, and DTM files to facilitate system integration
HART 7.9 standard and BURST mode
Low temperature drift PT100 ±0.003℃/℃
The accuracy level less than 0.1, and the measurement accuracy of PT100 is less than ±0.1℃
Sensor drift detection to improve data reliability
Multiple international certifications, working safely in explosion-proof hazardous areas
Working in ultra-low temperature environment of -55℃
NCS-TT305 Series HART Temperature Transmitter size shown:

NCS-TT305 Series HART Temperature Transmitter Installation:

Directly mounted on sensor

Split-type installation
NCS-TT305 Series HART Temperature Transmitter wiring diagram:

HART protocol temperature transmitter configuration
Topology connection
The NCS- TT305 series HART temperature transmitters can be connected in two ways: 4-20mA compatible mode and network mode.
4-20mA Compatibility Mode
NCS- TT305 series HART temperature transmitter in 4-20mA compatible mode is shown in Figure:

Features:
(1) It connects to the upper-level control system via HART communication equipment;
(2) Both analog and digital communication methods are used;
(3) The short address of a HART slave device is 0.
Networking mode
The network topology connection diagram of the NCS- TT305 series HART temperature transmitter is shown in Figure:

Features:
(1) It connects to the upper-level control system via HART communication equipment;
(2) Using only the digital functions of the HART system, the line current is fixed at 4mA;
(3) HART 7.0 supports a network of up to 64 devices (polling addresses 0 to 63).
NCS-TT305 Series HART Temperature Transmitter Basic Parameters:
Bus Interface | 4~20mA+ HART 7(supports BURST mode) |
Protocol Version | HART 7 |
Bus Power Supply | Non-Ex:(13~45 ) VDC Ex d: (13~45 ) VDC Ex ia: (13~30 ) VDC |
Wiring Method | 2/3/4-wire |
Input Signal | Resistance: 0~500Ω、0~2000Ω、0~4000Ω、0~40000Ω; RTD: Cu50、Cu50_GOST、Cu100、Cu100_GOST、Pt50_GOST、Callendar_Van_Dusen(Pt100)、Pt100、Pt100_GOST、Pt200、Pt500、Pt1000、Ni50、Ni100、Ni120、Ni1000; mV:-100mV~100mV; Thermocouple : B、E、J、K、N、R、S、T、L_GOST、A(W5ReW20Re)、C(W5ReW26Re)、D(W3ReW25Re)、NiCrAuFe、CuAuFe; |
Number of Channels | Dual channel |
Current Accuracy | Current accuracy0.05%;current temperature drift 0.005%/℃ |
Electrical Isolation | 2kVAC/50VAC |
Voltage Effect | ±0.005%/V |
Response Time | 1.0s~1.65s depending on the sensor type and wiring method. |
Start-up Time | ≤10s |
Damping Adjustment | Time constant 0~32s |
EMC | IEC 61326 |
Ex Certification | IECEx:Ex ia IIC T6...T4 Ga ATEX:II2G Ex db IIC T6...T4 Gb II2D Ex tb IIIC T85℃...T110℃ Db |
LCD Display | Support |
Button Operation | Support button setting parameters |
Operating Temperature | (-40~85)℃ (-55~85)℃ (optional) |
Humidity Range | (5~95)%RH |
Storage Temperature | -50 ~ 85℃ |
Alarm Signal | Lower limit of saturation current : [3.75-4.0)mA, default value 3.8mA Upper limit of saturation current: (20-20.8]mA, default value 20.5mA Lower limit of alarm current : [3.5-3.7]mA, default value 3.6mA Upper limit of alarm current: [21.0-23.0]mA, default value 21.75mA |
Vibration Resistance Specifications | 2-25Hz:±1.6mm;25-100Hz:±4g |
IP code | IP67(Current rating: IP20 & IP67; follow-up certifications pending) |
Weight | Approximately 1.67 kg |
NCS-TT305 Series HART Temperature Transmitter Technical indicators of thermal resistance
RTD normal temperature accuracy index (25℃)
Signal type | Sensor measuring range | Accuracy (25℃) | Temperature drift (/℃) |
Resistance signal | 0~500Ω | ±0.04Ω | ±0.001Ω |
0~2000Ω | ±0.35Ω | ±0.015Ω | |
0~4000Ω | ±0.35Ω | ±0.015Ω | |
0~40000Ω | ±8Ω | ±0.3Ω | |
Cu50 | -50 ~ 150 ℃ | ±0.10℃ | ±0.005℃ |
Cu50_GOST | -180 ~ 200 ℃ | ±0.10℃ | ±0.005℃ |
Cu100 | -50 ~ 150 ℃ | ±0.10℃ | ±0.003℃ |
Cu100_GOST | -180 ~ 200 ℃ | ±0.10℃ | ±0.003℃ |
Pt50_GOST | -200 ~ 850℃ | ±0.10℃ | ±0.005℃ |
Callendar_Van_Dusen | -200 ~ 850℃ | ±0.10℃ | ±0.003℃ |
(Pt100) | |||
Pt100 | -200 ~ 850℃ | ±0.10℃ | ±0.003℃ |
Pt100_GOST | -200 ~ 850℃ | ±0.10℃ | ±0.003℃ |
Pt200 | -200 ~ 850℃ | ±0.10℃ | ±0.005℃ |
Pt500 | -200 ~ 850℃ | ±0.10℃ | ±0.005℃ |
Pt1000 | -200 ~ 850℃ | ±0.10℃ | ±0.005℃ |
Ni50 | -60 ~ 180℃ | ±0.10℃ | ±0.004℃ |
Ni100 | -60 ~ 180℃ | ±0.10℃ | ±0.002℃ |
Ni120 | -60 ~ 180℃ | ±0.10℃ | ±0.002℃ |
Ni1000 | -60 ~ 180℃ | ±0.10℃ | ±0.002℃ |
NCS-TT305 Series HART Temperature Transmitter Thermocouple technical indicators
Thermocouple normal temperature accuracy index (25℃)
Signal type | Sensor measuring range (℃) | Accuracy (25℃) | Temperature drift (/℃) |
mV | -100 ~ +100mV | ±0.025mV | ±0.0015 mV |
B | 500 ~ 1810℃ | ±0.77℃ | ±0.050℃ |
E | -200 ~ 1000℃ | ±0.20℃ | ±0.025℃ |
J | -190 ~ 1200℃ | ±0.35℃ | ±0.01℃ |
K | -200 ~ 1372℃ | ±0.40℃ | ±0.025℃ |
N | -190 ~ 1300℃ | ±0.50℃ | ±0.015℃ |
R | 0 ~ 1768℃ | ±0.75℃ | ±0.023℃ |
S | 0 ~ 1768℃ | ±0.70℃ | ±0.023℃ |
T | -200 ~ 400℃ | ±0.35℃ | ±0.015℃ |
L_GOST | -200 ~ 800℃ | ±0.50℃ | ±0.0375℃ |
A(W5ReW20Re) | 0 ~ 2500℃ | ±1.45℃ | ±0.06℃ |
C(W5ReW26Re) | 0 ~ 2315℃ | ±1.15℃ | ±0.09℃ |
D(W3ReW25Re) | 0 ~ 2315℃ | ±1.55℃ | ±0.07℃ |
NiCrAuFe | -273 ~ 7℃ | ±0.65℃ | ±0.020℃ |
CuAuFe | -270 ~ -196℃ | ±0.85℃ | ±0.035℃ |
Appendix Selection Code Table









