3 Description
CPM 500 Electronic Peak Pressure Indicator
6
3
Description
3.1 Introduction
The electronic indicator
CPM 500
is a handy, battery powered,
portable device to measure and evaluate cylinder pressure on
diesel engines at speed up to 1500 RPM.
The
CPM 500
collects 10 consecutive pressure measure-
ments (cycles) and calculates peak pressure and engine
speed. The measured data are displayed in numerical format
on the LCD screen and can be stored in memory.
Up to 20 measurement data sets can be stored in the
CPM 500
. The stored data can be downloaded via USB-
interface to a personal computer for evaluation.
The scope of supply includes software for Windows which
allows additional evaluation and visualization of the
collected data.
3.2 Measure functions
Pmax:
average maximum pressure of 10 cycles
Pcomp:
compression pressure
RPM:
engine speed
A complete individual pressure curve average over the 10
cycles will be stored in the
CPM 500
memory with each
measurement.
3.3 Functional description
The cylinder pressure will be measured with the CPM 500
unit incl. high temperature pressure sensor at the indicator
cock on marine diesel engines.
Memory :
for 20 data sets
Application 2 – stroke:
40 – 300 RPM
Application 4 – stroke:
200 – 1500 RPM
The battery must be re-charged after approximately one
hour of continuous operation.
