The display details the current gas readings and
operational / status information (as shown above) or the
instrument can be set up to display a simple 'OK' message.
Note: This Handbook describes the operation of a four
gas instrument configured in the most common format.
On other models, operation is similar to the example shown.
Operational differences are highlighted if and where they
exist. Configurable options are available that allow the
instrument to be set up to suit your particular requirements.
These options are detailed in italic text, where applicable,
and are also detailed in the 'CONFIGURATION HANDBOOK'.
1.2 FEATURES
The main features of the V!SA instrument are:
•
Integral impact resistant housing.
•
Single button user operation.
•
From one (1), up to four (4) gases detected
simultaneously. (A five gas version is also available).
•
Alphanumeric display with screen light.
•
High intensity audible and visual alarms.
•
Confidence signal (green LED's and/or sounder).
•
Built-in electric pump (optional).
•
Automatic data logging (optional).
•
Three types of battery pack: Long Duration, Fast
Charge, and Alkaline. Each type of pack provides a
different operational lifetime. These times can be found
in Table 1.1 and display battery life in hours, allowing
five (5) minutes of alarm per day.
INTRODUCTION
1-3