Murco MGS Especificaciones descargar pdf (Pagina 25)

MGS Installation and Operation Manual

1000-0085 Rev 0 25

NOTE: Prior to carrying out a bump test, check and adjust the

zero setting as described in the Calibration section.

NOTE: Procedures for bump test and calibration vary depending

on the sensor technology used and the gas in question. The MGS

is available in three

sensor versions: Semiconductor (SC),

Electrochemical (EC) and Infrared (IR).

NOTE: Do not pressurize the sensor.

NOTE: For semiconductor sensors, you MUST use calibration

gas in a balance of air (not N

IMPORTANT: After a semiconductor or electrochemical sensor is

exposed to a substantial gas leak, the sensor should be checked

and replaced if necessary.

NOTE: To test the audible alarm and/or relay function, check the

delay is set at zero and expose to gas. You can mute the audible

alarm by removing jumper 3.

Step Bump Testing Using Calibration Gas Cylinders

Remove the enclosure lid of the

gas detector (not in an exhaust

area).

Connect a voltmeter to monitor

sensor response (in Volts DC).

Monitor the response between

pins 0V and VS.

Expose the sensor to gas from the cylinder. You can place the

entire MGS into a plastic bag or use a plastic hose/hood to direct

gas to the sensor head. A response of above 80% is acceptable.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 31

Sin comentarios

Murco MGS Especificaciones Pagina 25