In power plant equipment operation and maintenance, the precision and timeliness of temperature monitoring directly impact the stable operation of equipment. As a core industrial temperature measurement and control instrument, the 3T-1 intelligent temperature monitor has become a preferred choice for power plants and various industrial scenarios thanks to its rich and practical core features. As a professional equipment supplier, Dongfang Yili provides reliable 3T-1 intelligent temperature monitors to meet diverse measurement and control needs. The following provides a detailed breakdown of the core functions of this instrument:
3T-1 Intelligent Temperature Monitor: Multi-Type Signal Acquisition Function The core foundation of the 3T-1 intelligent temperature monitor lies in its comprehensive signal acquisition capabilities. It is compatible with mainstream thermal resistance (RTD) signals such as Pt100, Cu100, and Cu50, and can also receive a full range of thermocouple signals including S, B, R, T, and K, adapting to the temperature sensing requirements of different power plant equipment. For RTD signals, the instrument supports 2-wire, 3-wire, and 4-wire wiring configurations with a maximum lead resistance of 10 Ω/wire. Effectively avoiding measurement errors caused by lead resistance and ambient temperature, it guarantees accurate data acquisition. Thermocouple signals come with built-in internal cold-junction compensation across 0–70°C with an accuracy of ±2°C.
3T-1 Intelligent Temperature Monitor: Display and Transmitter Output Functions Equipped with a 4-digit red LED digital display, the instrument features a 1-second display refresh cycle, allowing O&M personnel to read real-time temperature values intuitively. Parameters are displayed synchronously when entering setting mode, ensuring convenient operation. It also supports standard DC 4–20mA transmitter output with output ripple and noise under 20 µA rms, non-linearity under 0.2% FS ± 2°C, and temperature drift under 0.01% FS/°C. The stable and precise output signal can directly connect to the power plant’s DCS system to enable remote transmission and centralized monitoring of temperature data.
3T-1 Intelligent Temperature Monitor: Fault Alarm and Control Functions The instrument built-in two alarm relays with a contact capacity of 6A @ 250VAC / 10A @ 24VDC. Alarm action values and hysteresis values can be freely configured to meet different temperature threshold alarm needs. For common faults such as sensor wire disconnection, the instrument immediately displays “OPEn”, flashes the OK indicator, and can forcibly output minimum current. Additionally, Alarm Relay 1 can be set specifically for wire disconnection alarms, enabling rapid fault identification and early warning to prevent equipment issues caused by temperature monitoring failures.
Dongfang Yili’s 3T-1 intelligent temperature monitor performs exceptionally well in temperature measurement and control for power plant boilers, steam turbines, motors, and other equipment. Featuring easy installation and stable operation, it serves as a cost-effective choice for industrial temperature monitoring, building a solid defense for safe equipment operation.
DFYLSYC-2026-08-21-A
