M8 COOL HB

Ultra-fast precise pressure transducer for high temperatures — M8 COOL HB

Спецификация M8 COOL HB

Available on request
Delivery across Russia
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Description

The M8cool HB series pressure transducers with a dynamic range of 0…50 kHz and M8 thread are optimized for both dynamic (e.g., pulsation) and static pressure measurements. The sensor design ensures perfect compatibility with the medium and allows measurements at temperatures up to 1000 °C with cooling.

Electronic Components

The M8cool HB series transducer chips are designed to leverage the high dynamic range of the M5 sensor. Although the signal is retuned in real time via a high-precision digital compensation circuit, it remains fully analog. This maintains the full dynamic range and high signal accuracy across the entire bandwidth from 0 to 50 kHz. The remote signal converter, operating at temperatures from -40 to +125 °C, meets the special requirements of aggressive environments, such as engine test benches. The sensor alone, equipped with an 80 mV analog output (at 1 mA supply), is also suitable for these applications. In this configuration, the sensor is supplied with a card providing the user with data obtained from factory calibration (M8cool series).

Sensor Technology

The M8cool series transducers are based on a robust silicon sensor soldered on the back directly to a reference element designed to ensure perfect hydrodynamics. This design eliminates drawbacks associated with the use of sealing materials, adhesives, separating membranes, or capillary tubes in high-temperature environments. To maintain the excellent dynamic range from 0 to 50 kHz, the open membrane installation type is critically important. The micromechanical design provides absolute pressure ranges up to 3, 10, and 30 bar, protection against fivefold overloads, and effective isolation during installation.

Features

The sensor can withstand temperatures up to 200 °C and up to 1000 °C with
cooling;
Internal cooling channels operate more efficiently compared to standard cooling adapters;
Wide temperature compensation range from -40 to 180 °C;
Bandwidth up to 50 kHz (pulsation measurement);
Resistance to shock and vibration;
Compact design, process connection: external thread M8 x 0.75;
Teflon FEP cable with IP67 protection, suitable for use in test benches;
Absolute pressure ranges up to 3, 10, or 30 bar.

Specifications
Overall dimensions drawing
Connection diagram
Applications

Technical Specifications
Pressure ranges, abs. PAA	0…3	0…10	0…30	bar
Overload / burst pressure	15	50	90	bar

PAA: Absolute pressure. Zero = vacuum.

Accuracy	± 0.1 % FSO
Total error	± 1.0 % FSO at sensor temperature -40…180 °C
Sensor operating temperature	-50…+180 °C without cooling -50…+1000 °C with water (100 ml/min) or air cooling
Electronics operating temperature	-40…+125 °C
Temperature coefficients of amplifier electronics	max. ± 0.01 %/°C
Circuit type	3-wire circuit, RS485
Output signal	0…10 V
Supply voltage	13…32 VDC
Load resistance	>5 kOhm
Cutoff frequency (-3 dB)	min. 50 kHz
Current consumption (no load)	max. 15 mA
Electrical connection	M12 (5-pin), Binder 723 (5-pin)
Process connection	Metric thread: M8 x 0.75 external
Cable (between sensor and electronics)	FEP cable, diameter Ø 2.9 mm, shielding, 1.5 m
Insulation	>10 MOhm at 300 VDC
Materials in contact with medium	Stainless steel AISI 316L (DIN 1.4404 / 1.4435), silicon, gold, external copper seal
Medium compatibility	Gases, oil, fuel (diesel, gasoline, etc.), coolants, etc.
Protection class	IP67 (with suitable connector)
EMC	EN 61000-6-2 / EN 61000-6-3 / EN 61326-2-3
Options	• Other types of process connections via adapters • Other temperature compensation ranges • Without electronic compensation (M8cool series) • X-line version (more accurate, fg = 1.3 kHz) instead of HB electronics