Specification

Description

Operating

Environment

Ambient Temperature

0~50℃

Relative Humidity

≤85% RH Avoid strong corrosive gases

Power Supply Voltage

Standard type: AC220V+10-15%（50Hz±2Hz）

Special type: AC85~260V——Switching power supply DC24V ±2V——Switching power supply

Power Consumption

·≤6W（AC220V linear power supply）

·≤6W（AC85~260V switching power supply）

·≤6W（DC24V switching power supply）

Input

Signal

Analog

Thermocouple: Standard thermocouples——B, S, K, E, J, T, WRe3-25, etc.

Resistance: Standard RTDs——Pt10, Pt100.1, Cu50, Cu100, remote pressure resistance, etc.

Current: 0~10mA, 4~20mA, 0~20mA, etc.——Input impedance ≤250Ω

Voltage: 0~5V, 1~5V, mV, etc.——Input impedance ≥250KΩ

Digital

Pulse signal: Waveform——Rectangular, sine, or triangular wave Amplitude——Greater than 4V (or as specified by user)

Range——0~10KHz (or as specified by user)

Contact signal: Electrical contact input signal

Output

Signal

Analog Output

DC 0~10mA（Load resistance ≤750Ω） DC 4~20mA（Load resistance ≤500Ω）

DC 0~5V（Load resistance ≥250KΩ）DC 1~5V（Load resistance ≥250KΩ）

Digital Output

Relay control output—Relay ON/OFF with hysteresis. AC 220V/3A DC 24V/5A (resistive load)

SCR control output—SCR (zero-crossing trigger pulse) output, 0.5A/400V

SSR output—SSR (solid-state relay control signal) output, 6~24V/30mA (voltage non-adjustable)

Triac output—SOT triac output, 5A/400V

Communication Output

Interface——Standard bidirectional serial communication interfaces RS-485, RS-232C, RS-422, etc.

Baud rate——300~9600 bps, freely configurable within the instrument

Power Supply Output

DC 24V, load ≤30mA

Measurement Accuracy

±0.2% FS ±1 digit or ±0.5% FS ±1 digit

Resolution

±1 digit

Measurement Range

-1999~9999 digits

Display Mode

-1999~9999 digits measured value display -1999~9999 digits set value display LED status indicator

Control Mode

Control mode with upper or lower limit hysteresis (user configurable)

Control Accuracy

±1 digit

Temperature Compensation

0~50℃ digital automatic temperature compensation

Print Control

Supports direct connection to various serial printers (e.g., LQ-300K, TPuP series micro printers, etc.), print interface is RS-232C

Print Accuracy

Same as instrument accuracy

Parameter Setting

Panel touch key setting, parameter settings saved after power-off, parameter setting password lock

Protection Mode

Input circuit break (for thermocouple or RTD input), relay output status LED indication, input over/under range

Automatic reset for under-voltage power supply, automatic reset for abnormal operation (Watch Dog)