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P44000 Temperature Transmitter | Input Pt100 resistance thermometer (RTD) | High isolation up to 6600V

Product number: P44000
Description Technical details Downloads Use cases Blog posts

Description

P44000 Temperature Transmitter | Input Pt100 resistance thermometer (RTD) | High isolation up to 6600V

Precise Temperature Measurement at High Voltage Potentials up to 6.6 kV

  • Transmitters for Pt100 temperature sensors, 2-, 3- or 4-wire connection
  • Fixed range models for 0 to 150 °C, 0 to 200 °C and 0 to 300 °C input ranges
  • Impressed output current of 4 to 20 mA
  • Compact modular housings: 67.5 mm (D3) and 22.5 mm (D1)
  • High isolation up to 6.6 kV AC/DC basic insulation and up to 2.5 kV AC/DC reinforced insulation with overvoltage category III and pollution degree 2 (input against output and power supply)
  • 22.5 mm housing for less demanding isolation requirements up to 2 kV AC/DC (basic insulation)
  • Measurement error of just ± 1 K (typically ± 0.5 K) and short T90 delay time of 100 ms
  • Broad-range power supply for 22 ... 230 V AC/DC ensures safe operation even with unstable power grids
  • Resistant to environmental influences through vacuum encapsulation
  • Suitable for extreme environments: ambient temperature during operation –40 ... +85 °C
  • 5-year warranty

When temperatures are to be measured using Pt100 resistance thermometers in high-voltage environments, standard temperature transmitters are often unsuitable due to their insufficient insulation.

Resistance thermometers can be insulated against high voltage. In practice, however, the available installation space is often too small. Moreover, the insulation is weakened by thermal and mechanical aging.

For temperature measurement on power electronics components, maximum safety is therefore provided by high-voltage resistant galvanic isolation. A typical application is the monitoring of the winding temperature of electric motors, generators or transformers.

The Solution:
Pt100 Transmitter with up to 6.6 kV AC/DC Basic Insulation

The new P44000 transmitters for high-voltage applications convert the resistance of a 2-, 3- or 4-wire Pt100 resistance thermometer into a 4 to 20 mA signal with high accuracy and short delay times.

The output signal is galvanically isolated from the input signal and the voltage supply. The isolation is designed for working voltages of up to 6.6 kV AC/DC. During routine testing, the test voltage is 15 kV AC. Vacuum encapsulation protects the circuit against environmental influences and ensures that the extraordinary isolation properties are maintained.

The product line covers the standard ranges of 0 to 150 °C, 0 to 200 °C and 0 to 300 °C. The transmitters are available in 67.5 and 22.5 mm modular housings to suit different requirements.

We look forward to hearing from you!
Contact Us

Technical details

Input: 0 ... 100 °C, 0 ... 200 °C, 0 ... 300 °C
Output: 4 ... 20 mA
Isolation AC/DC: up to 2,000 V, up to 6,600 V
Test Voltage: 7.5 kV AC , 15 kV AC
Power Supply: 22 ... 230 V AC/DC
Cutoff Frequency: Cutoff frequency 5 kHz, lower cutoff frequency on request
Ambient operating temperature: –10 ... 70 °C
Dimensions (W x L x H): 22.5 x 90 x 118 mm, 67.5 x 90 x 118 mm (D3)
Special features: Low measurement error of typically 0.5 K, Short T90 delay time of 100 ms
Standards: EN 61326, UL 347
Product Category: High Voltage Transducer, Sensor Transmitter

Downloads

Manuals

[15] User Manual (DE, EN, FR, BR)
P44000
Version 03

Brochures

[18000] Brochure
Precision Devices for the Rail Industry

Data Sheets

[12258] Data sheet
P44000
Product Description | Specifications | Product Range

Certificates

[12063] EU Declaration of Conformity (DE, EN, FR)
No. EU220125L | 2022-11-25
P44000 (P441**D1-nnnn, P442**D3-nnnn)
[12071] Certificate of Compliance (UL)
P41000, P42000, P43000, P44200, P51000, P52000
MOTOR CONTROLLER ACCESSORIES OVER 1500 VOLTS
No. UL-US-L356768-11-22503102-1 | 202406-28

Our service

Used in Process or Applications

Interface Technology
High voltage transducers and signal conditioners for the acquisition and conversion of current, voltage, temperature, speed, strain and resistance signals.
Industry Solutions
The electrical measuring technology from Knick provides a range of solutions for signal detection and conversion, current and voltage measurement, and more.

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