Four channel intelligent instrument | Four channel intelligent pressure and temperature display instrument | Four channel pressure and temperature display control instrument

The core design concept of intelligent instruments is universality, that is, a new generation of intelligent universal digital (light column) display control instrument with a division mark that can adapt to multiple signal inputs/outputs. It can be used in conjunction with instruments such as thermocouples, thermistors, transmitters, sensors, etc., and can be used in industries such as metallurgy, power, petroleum, chemical, mechanical manufacturing, heat treatment, and light industry. The instrument can indicate, alarm, and output various industrial parameters such as pressure, temperature, flow rate, liquid level, speed, voltage, current, frequency, etc. by users setting appropriate parameters through the setting keys. This instrument has strong anti-interference ability and is suitable for use in situations with large power fluctuations. The power supply range is 100~260VAC/DC or 24VDC

Main features

The instrument is easy to operate, has strong universality, and can be used for multiple purposes. Users can input multiple signal types through keyboard settings, greatly reducing the number and cost of backup instruments.

◆ Software zero and full adjustment, eliminating measurement errors caused by temperature drift and time drift, with display accuracy better than 0.2% FS.

The instrument adopts digital filtering technology, which can identify and suppress low-frequency disturbances and irregular interference sources accompanying measurement signals in the working condition system, thereby improving anti-interference ability.

◆ Free output options: relay contact, SSR drive level, thyristor zero crossing, and phase-shifting pulse contact output; Analog transmission output; 24VDC power supply feeding output. ◆ It has software automatic fault monitoring and alarm functions.

The brand new surface mount welding technology makes the instrument beautiful, elegant, and strong in anti-interference.

Adopting a card in structure design, it is easy to install, maintain, and exchange; The installation dimensions are compatible with domestic and foreign instruments.

Main technical indicators

Measurement range: -1999 to 9999 words

Accuracy: ± 0.5% FS ± 1 word or ± 0.2% FS ± 1 word

Resolution: 0.001, 0.01, 0.1, 1

Sampling period: 3 times/second

◆ Signal input: Thermistor: Pt100, Cu50 Thermocouple: B, S, E, K, J, T, R, N

Standard current: 0-10/0-20/4-20mA Standard voltage: 0-5/1-5V

Resistance: 0-400 Ω Non standard voltage: 0-100mV

Frequency: 0-3KHz, amplitude>4V, rectangular wave or sine wave

◆ Transmission output: Standard voltage: 0-5V, 1-5V (load RL ≥ 250k Ω)

Analog standard current: 0-10mA (load RL ≤ 750 Ω); 4-20mA (load RL ≤ 500 Ω)

Control output: Contact capacity 220VAC/3A (resistive load)

◆ Feed output: 24VDC (30mA)

Communication interface: RS485, RS232, PRN interface; 300-9600bps optional; MODBUS communication protocol

Power supply: 100-265VAC, 50Hz or 24VDC ± 2V.

◆ Insulation strength: Public ground (earth end): greater than 40M Ω, 500VAC/1 minute, no breakdown, no arcing.

Working environment: Temperature: 0-50 ℃; Relative humidity:< 85%RH； Avoid strongly corrosive gases.

Installation method: snap in installation, spring clip top pressure installation

Instrument appearance: 160X80X100, 80X160X100

Instrument appearance: 155X76, 76X155

Power consumption: ≤ 4W (220VAC, 24VDC Switching Power Supply)

Typical usage plan:

1. When used in conjunction with DLK206, it can simultaneously connect four pressure transmitters and monitor the pressure values of four points. At the same time, the upper and lower limits of pressure can be set through DLK504H, and the start and stop of peripheral pressurization equipment can be controlled by outputting switch signals to achieve automatic constant pressure function, ensuring that the monitored pressure is always between the set lower and upper pressure limits. PY504H has four channel function, which can simultaneously control the connection of four pressure transmitters to measure and monitor the pressure at four points. Widely used in situations where there are many pressure control points and limited space;

2. When used in conjunction with DLK201, four water level transmitters can be connected simultaneously. The upper and lower limits of the water level can be set through DLK504H, and the start and stop of the peripheral water (pumping) pump can be controlled by outputting switch signals to achieve automatic constant water level function, ensuring that the monitored water level is always between the set lower and upper limits of the water level. PY504H has four channel function, which can simultaneously monitor the water level of four containers, achieving multi-point water level monitoring and multi-point water level control. Widely used in tap water level control systems; Ship's water level control system; In situations where automatic control of water level is required, such as water tank level automatic control systems;

3. At the same time, it can be connected to DLK206, PT100, and DLK201 to achieve simultaneous measurement, display, and control of pressure, temperature, liquid level, and other parameters. It is suitable for situations where pressure, temperature, and liquid level need to be monitored and measured by a monitoring machine.