Acoustical Capacity Meter (combustion chamber)
VM-230A, VM-240A

Regardless of the shape, the combustion chamber capacity can be measured by simply placing the capacity meter on the combustion chamber cavity of the cylinder head, as shown in the picture.

Instead of using a spark plug of the assembled engine, special adapters are used to connect to the capacity meter so that the combustion chamber capacity can be measured.

In the process of engine manufacturing or maintenance, the combustion chamber capacity can be measured in just two seconds in dry conditions.
Description Specifications

Product Full Description

Regardless of the shape, the combustion chamber capacity can be measured by simply placing the capacity meter on the combustion chamber cavity of the cylinder head, as shown in the picture.

Instead of using a spark plug of the assembled engine, special adapters are used to connect to the capacity meter so that the combustion chamber capacity can be measured.

In the process of engine manufacturing or maintenance, the combustion chamber capacity can be measured in just two seconds in dry conditions.

Acoustical Capacity Meter (Combustion Chamber Capacity Meter)

Capacity / volume measurement:
Repeat Precision

±0.05 cm3 | When a volume of 50 cm3 is measured under standard environmental conditions (20 ºC, 50 %) (for a cylinder head)

Required measurement time

Approx. 2 seconds (when number of analysis points is 1024. Units: one-second steps)

Measurement frequency

15 to 99 Hz (variable, depends on the object)

Numbers of analysis points

256 to 4096 points (variable, in a power-of-two; initial value: 1024 points)

Reference Chamber:
Acoustic pressure in measurement tank

Approx. 94 to 134 dB (1 to 100 Pa rms)

Reference Chamber:
Internal dimension, capacity

ϕ90 mm x 91 (H) mm V1 nearly equal to 570 cm3

Controller

Connected to a computer through a USB cable. 54 (H) x 150 (W) x 170 (D) mm, approx. 400 g

Consumption current

5 V, approx. 475 mA (approx. 2.4 VA)

Available OS

Microsoft Windows 7 Professional 32-bit / 64-bit, 8.1 Pro 32-bit / 64-bit, 10 Pro 32-bit / 64-bit

Accessories

Connection cable, USB cable
AC adapter
Software (CD-ROM)

Options

Reference standards | For calibration, at least two reference standards are needed.
0 to 120 cm3 (in 5 cm3 increments)

Manufactured according to the capacity of the object
Spark plug hole adapter
For assembled engines

Acoustical Volume Meter

Capacity / volume measurement:
Repeat Precision

±0.1 cm3 | When a volume of 100 cm 3 is measured under standard environmental conditions (20 ºC, 50 %)

Required measurement time

Approx. 2 seconds (when number of analysis points is 1024. Units: one-second steps)

Measurement frequency

15 to 99 Hz (variable, depends on the object)

Numbers of analysis points

256 to 4096 points (variable, in a power-of-two; initial value: 1024 points)

Reference Chamber:
Acoustic pressure in measurement tank

Approx. 94 to 134 dB (1 to 100 Pa rms)

Reference Chamber:
Internal dimension, capacity

ϕ90 mm x 91 (H) mm V1 nearly equal to 570 cm3

Controller

Connected to a computer through a USB cable. 54 (H) x 150 (W) x 170 (D) mm, approx. 400 g

Consumption current

5 V, approx. 475 mA (approx. 2.4 VA)

Available OS

Microsoft Windows 7 Professional 32-bit / 64-bit, 8.1 Pro 32-bit / 64-bit, 10 Pro 32-bit / 64-bit

Accessories

Connection cable, USB cable
AC adapter
Software (CD-ROM)

Options

Reference standards | For calibration, at least two reference standards are needed.
Measurement enclosure
Manufacture the enclosure according to the dimensions of the target object

Full Data Sheet

For access to the full data sheet, go to Rion - VM-230A, VM-240A
Information on technical characteristics is based on the latest information available at the time of publication.