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WP-9000 series passive thermocouple temperature transmitter (output loop power supply)
WP-9000 series passive thermocouple temperature transmitter (output loop power supply) isolates and converts the on-site two-wire thermocouple signal
Product details
WP-9000 series passive thermocouple temperature transmitter (output loop power supply) isolates and converts the on-site two-wire thermocouple signal into the required DC signal (linear with temperature) for output. Mainly used for DCS and PLC systems with input circuit power supply.
This temperature transmitter is powered by a loop, with complete electromagnetic isolation between the input and output circuits.
◆ Characteristics
● Isolation conversion of signal input for various types of thermocouples (or millivolts) in a two-wire system.
An isolated output (4-20) mA linearized with temperature.
● Equipped with automatic cold end compensation function.
● Circuit power supply (12-28) VDC.
● Plug and unplug terminal block, DIN rail card installation.
● Working power supply
Output circuit power supply: (12-28) VDC
● Input signal
Input channel: Terminal 1-, 2+wiring
Input type: thermocouple K, E, S, B, R, T, N, W, millivolt signal
Input resistance: ≥ 20K Ω
Cold end temperature compensation range: (-15~+75) ℃
Cold end temperature compensation error: ± 1 ℃ for every 20 ℃ change
● Output signal
Output channel: Terminal 11-, 12+wiring
Output current (Io): (4-20) mA
Output circuit power supply voltage (Ue): (12-28) VDC
Minimum operating voltage (Ui): 12VDC
Output load capacity: see the following calculation diagram
Output load resistance: RL ≤ (Ue Ui)/0.02
Thermocouple input disconnection alarm: low current ≤ 3.5mA; high current ≥ 22mA
Ripple (Vp-p): ＜ 10mV
● Performance indicators
Standard accuracy: ± 0.5% FS
Temperature drift: ± 0.015%/℃
Response time: ≤ 1s (10 → 90)%
Stability time: ≤ 3s
Insulation resistance: ≥ 100M Ω/500VDC (AC)
Isolation capability: 1500VAC/1 minute 50Hz
Electromagnetic compatibility: Complies with relevant electromagnetic standards of IEC 61000
● Environmental parameters
Working temperature: (-20~+60) ℃
Storage temperature: (-40~+80) ℃
Environmental humidity: (5~+95)% RH (without condensation)
● Structure
Card mounted type; Modular watch core; ABS material casing; Plug in terminal
Whole machine weight: approximately 110g
◆ External dimensions
Dimensions: Width x Height x Depth=16 x 116 x 110 (mm)
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