How to select ultra-low temperature sensor

Main features of ultra-low  temperature temperature sensor:

The temperature probe adopts Pt100 or PT1000 platinum resistance, which has high precision and good stability. Can set transmitter in one, compact structure, easy installation, high precision, low power consumption, variable output 4-20mA, 0-5V, 0-10V, RS485 and other signals. The current output type is suitable for long-distance transmission, anti-electromagnetic interference circuit design, to ensure that the transmitter can work safely and reliably under various disturbances, and is suitable for modern electromagnetic pollution serious environment. The overall sealing performance is good temperature range and shape size can be ordered according to household requirements, flexible and convenient, product structure design is reasonable, process connection interface is flexible and convenient, small size, light weight, arbitrary installation position, shell protection material diversification (304 stainless steel, 316 stainless steel, 316L stainless steel, etc., special can be customized according to requirements), Suitable for a variety of media measurement, standard pipe thread installation.

Ultra-low temperature temperature sensor main technical indicators:

Temperature measurement range: up to -200°C

Output signal: 4-20mA, 0-5V, 0-10V, RS485 signal

Load resistance: ≤500Ω

Power supply: 24VDC

Power consumption: ≤1W

Basic error: 0.2%-0.5% FS

Application of ultra-low temperature sensor: widely used in refrigeration engineering, laboratory, thermal engineering, power, food, pharmaceutical, petrochemical and other process industries and ovens, plastic chemical fiber, refrigeration units and other large mechanical equipment temperature measurement.

Parameter selection of low-temperature temperature sensor:

Temperature measuring element type: single pt100, single pt1000, double pt100, double pt1000, etc.

Accuracy selection: 2B ±0.6°C, B ±0.3°C, A ±0.15°C.

Temperature range: -200~300°C.

Connection mode: two lines; Three-wire; Four lines.

Protective tube diameter: stainless steel, 3mm, 4mm, 5mm, 6mm, 8mm, etc. (can be customized according to requirements)

Protective tube length: 20mm, 50mm, 120mm, 150mm, 200mm, etc. (can be customized according to requirements)

Installation method: In line, threaded mount M10*1, M16*1.5, G1/4, G1/2, M20*1.5 (can be customized)

Response time: T0.9S about 6s, when the water velocity is 0.2M/sec, the protection tube is 5mm.

Self-heating effect: The maximum current allowed through pt100 is ≤5mA, the maximum current allowed through pt1000 is ≤0.5mA

Connection wire: PVC wire, silicone wire, PTFE Teflon wire, metal glass fiber wire, etc. On-site temperature measurement requirements: waterproof/corrosion resistance/wear resistance/seismic/other.

Note: Special requirements, please inform us in detail, can be customized according to requirements.

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