MAN0597 ISSUE 08 - 02/04
2302M5030
1. INTRODUCTION
16
1. INTRODUCTION
The Impact / Impact Pro is a compact, portable gas monitor
designed to be carried or worn without hindering the user. Its
purpose is to monitor the atmosphere continuously for
hazardous levels of up to four gases. These concentrations if
gases are measures using Zellweger Analytics sensors.
Audible and visual alarms alert the user to danger when
hazardous conditions are detected
The instrument is usually supplied with four gas sensors, for
detecting oxygen (enrichment and deficiency), flammable
gases (up to the Lower Explosive Limit) and two toxic gases
(for personal safety) all housed in an easily replaceable
cartridge.
Various sensor technologies are used to achieve this. In the
vast majority of cases, electrochemical technology is used to
detect oxygen and toxic gases while catalytic combustion
technology is used to detect flammable gases.
Two types of cartridge are available. One is disposable where
the cartridge has a fixed life and once this has expired the
cartridge is disposed of. The other is a Serviceable Cartridge
where the sensors can be individually replaced when required.
The serviceable cartridge type can only be used in the
Impact Pro.
Note: Throughout this manual it is assumed that the Impact /
Impact Pro is equipped with a Disposable Four Sensor
Gas Cartridge. References to sensors not fitted in the
users instrument should be ignored.
This manual covers all models - some features are not
available on all models. Not all models are available in
every country.
The instrument is supplied with dry cells and holders as
standard. Rechargeable batteries and charger can be
purchased separately as a kit.