Crowcon Gas-Pro - Gas testing and calibration; Introduction

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3. Gas testing and calibration
3.1 Introduction
Crowcon recommends regular gas tests (also known as bump tests) to conrm sensor operation.
This involves applying a known composition of the correct gas to each sensor to verify sensor
response and alarm function. Organisational specic Health and Safety regulations should be
adhered to, and a number of exible and simple solutions are available.
Gas-Pro offers two types of bump test. A speedy bump test which is a gas test to the rst alarm level
and smart bump test, a gas test to a specied level of test gas.
In addition if any channel fails speedy bump or smart bump then Gas-Pro can be congured to
perform a bump fail calibration.
Gas-Pro can be congured to automatically perform the following options:
• No Calibration or Bump (default conguration)
• Bump (Speedy or Smart)
• Bump then calibration after bump fail (calibration can be optional on a bump test pass)
• The conguration items differ per region and can be set with Portables Pro to match user
requirements.
This bump test and calibration functionality can be implemented with of any of the following options.
Q-Test
Quick and simple in-eld gas test and calibration solution. Providing off-site testing for remote
locations where power is not always available or practical. Simple to use and easy to repeat Q-Test
reduces set-up, training requirements and space needed.
Powered Q-Test allows gives a permanent home to monitors as it can be mounted in a vehicle and
easily powered via a standard in-vehicle power socket.
I-Test
Intelligent wall or desk mount gas test and calibration solution. Suitable for small and large eet
users alike, I-Test offers simple fully managed testing with data capture as well as the ability to
update congurations.
Flow Plate
Gas-Pro can also be tested simply by using the ow plate and applying gas.
i
If Gas-Pro is operated in pumped mode in combination with an exhaust pipe, a set of
bellows should be used inline (e.g. ow plate , 2cm maximum tube, bellows, 3000cm
maximum tube)
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