Crowcon CellarSafe Manuel utilisateur

Issue 505/2006

Issue 5

The CellarSafe is designed for easy installation using mains power supply. It is pre-calibrated and

has been designed for one man installation. The alarm levels are factory set and the relays are ‘fail

safe’ so in event of power failure the alarms will activate.

Issue 5

Issue 5

Contact Crowcon

Contact Crowcon

Contact Crowcon

Contact Crowcon

Issue 5

CellarSafe is fitted with an AC plug for convenience, however if permanent installation is required, it

should be wired to a dedicated AC spur fed from a circuit breaker, marked as the disconnecting

device for the CellarSafe.

The circuit breaker must comply with the relevant requirements of IEC 947-1and IEC 947-3. These

procedures ensure that the installation complies with the requirements EN 61010-1 (Low Voltage

Directive).

The repeater unit supplied with CellarSafe does not need specialist cabling. Each additional

repeater unit is supplied with a 9m cable as standard.

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3.0%

Issue 5

115v ac option available

Note: CO2 alarms are Subject to a 25 second time delay to prevent false alarms when exchanging

gas cylinders. Oxygen alarms are instantaneous.

6 CALIBRATION AND TESTING

6.1 Introduction

It is necessary to test this product at least every twelve months to ensure that the sensors and

alarms are operational. Periodic testing may be performed simply by using exhaled breath to

generate high CO2and low oxygen alarms on units with an oxygen sensor fitted. Exhaled breath

contains approximately 4% CO2and 16% oxygen, and therefore contains sufficient levels of each

gas to cause alarms on the CellarSafe monitor.

To test the alarms, blow into a plastic bag and hold the open end of the inflated bag tightly over

the sensor(s) until the alarms activate. The CellarSafe display will show increased levels of CO2

and decreased levels of oxygen (on units with an oxygen sensor fitted), and the alarms should

activate after approximately 10-15 seconds for oxygen and 25 seconds for CO2.

Alternatively, Crowcon can provide a calibration unit and calibration gas for checking and

calibrating the sensors. The following sections describe the calibration procedure.

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6.2 Calibration

7

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6.3

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2 Adjust the gas flow to 750 ml/min for the carbon dioxide only monitoring system and

1.5 l/min for the dual gas monitoring system.

9

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