Pressure Transducers

Piezo-Electric High Pressure Transducers

GP2 for up to 2000 bar (200 MPa)

GP6 for up to 6000 bar (600 MPa)

GP8 for up to 8000 bar (800 MPa)

		GP 2	GP 6	GP 8
Measuring Range	bar (MPa)	2000 (200)	6000 (600)	8000 (800)
Overload Pressure	bar (MPa)	2400 (240)	6400 (640)	8400 (840)
Sensitivity (nom.)	pC/bar (pC/MPa)	5.5 (55)	3 (30)	2.5 (25)
Linearity	%	≤ ± 0.5	≤ ± 0.5	≤ ± 0.5
Operating temperature range	°C	- 50 …. 200	- 50 …. 200	- 50 …. 200
Temperature coefficient of sensitivity	% / °C	- 0.01	- 0.01	- 0.01
Insulation resistance at 20 °C	Ω	≥ 10¹³	≥ 10¹³	≥ 10¹³
Natural frequency	kHz	≥ 240	≥ 240	≥ 240
Rise Time	μs	≤ 1	≤ 1	≤ 1
Acceleration sensitivity: axial	bar / g (MPa/g)	0.002 (0.0002)	< 0.002 (0.0002)	0.002 (0.0002)
radial	bar / g (MPa/g)	0.005 (0.0005)	< 0.005 (0.0005)	0.005 (0.0005)
Shock resistance: axial	g	25000	25000	25000
radial	g	10000	10000	10000
Mounting torque	Nm	20	20	20
Mounting thread	mm	M 10 x 1	M 10 x 1	M 10 x 1
Weight	grams	12	12	12
Cable connector		Microdot 10-32UNF	Microdot 10-32UNF	Microdot 10-32UNF

		GP 2	GP 6	GP 8
Measuring Range	bar (MPa)	2000 (200)	6000 (600)	8000 (800)
Overload Pressure	bar (MPa)	2400 (240)	6400 (640)	8400 (840)
Sensitivity (nom.)	pC/bar (pC/MPa)	5.5 (55)	3 (30)	2.5 (25)
Linearity	%	≤ ± 0.5	≤ ± 0.5	≤ ± 0.5
Operating temperature range	°C	- 50 …. 200	- 50 …. 200	- 50 …. 200
Temperature coefficient of sensitivity	% / °C	- 0.01	- 0.01	- 0.01
Insulation resistance at 20 °C	Ω	≥ 10¹³	≥ 10¹³	≥ 10¹³
Natural frequency	kHz	≥ 240	≥ 240	≥ 240
Rise Time	μs	≤ 1	≤ 1	≤ 1
Acceleration sensitivity: axial	bar / g (MPa/g)	0.002 (0.0002)	< 0.002 (0.0002)	0.002 (0.0002)
radial	bar / g (MPa/g)	0.005 (0.0005)	< 0.005 (0.0005)	0.005 (0.0005)
Shock resistance: axial	g	25000	25000	25000
radial	g	10000	10000	10000
Mounting torque	Nm	20	20	20
Mounting thread	mm	M 10 x 1	M 10 x 1	M 10 x 1
Weight	grams	12	12	12
Cable connector		Microdot 10-32UNF	Microdot 10-32UNF	Microdot 10-32UNF

Accessories are available with the transducers and as spare parts from ROTEQ.

Such are Sealing Rings, Piezo Input Cable (Microdot to BNC) and Measuring cables (BNC - BNC).

We also provide Dummies (Plugs) for the GP Series of Transducers.

Installation Tool Kit with Torque Wrench for correct mounting of the Transducers and

Drilling Tool Kit for the correct machining of the Transducer Ports can be supplied.

Each transducer comes with a Calibration Certificate, 20 Sealing Rings and a Plastic Storage Box.

The GP Series of Transducers is made with Gallium Phosphate Technology.

Gallium Phosphate has some advantages against the common Quartz elements.

Å Thermal stability up to 970 º C

Å Excellent stability of piezoelectric constant over a wide pressure range

Å Twice the sensitivity of tourmaline and quartz

Å No pyroelectricity

Å Stable material quality due to industrial crystal growth process

Temperature Sensitivity

Pressure Sensitivity compared to Quartz

And, after some time you may want to calibrate the Transducers:

We have an advanced Calibration System to calibrate the Transducers against a Reference Transducer.

Measuring Range: up to 1000 MPa (10 000 bar)

System Accuracy: ± 0.2% based on reference transducer

Duration of one calibration cycle: approx. one minute