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Technical Specification
TRIP RANGE
75dB to 112.5dB in 2.5dB steps switch selectable
+/ - 5dB calibration control (factory set)
WARNING RANGE
-3, -6, -9, -12dB down on trip level select switch
TRIP TIME
1 second to 10 seconds user adjustable (potentiometer)
MUTE TIME
20 seconds from beginning of trip time
POWER SWITCHING
The GA904 will switch a 240V 30A load
OPERATING MODE
Manual: When tripped unit must be manually reset
Auto: When tripped unit automatically resets after trip time
Override: Power output is maintained even during trip condition
Manual, Auto, Override are keyswitch selectable
FREQUENCY WEIGHTING
A and B
TIME WEIGHTING
Slow 1000mS
DISPLAYS
Analogue bar graph display showing sound pressure level
Trip indication with trip source
Warning indication
Manual reset prompt
In the interest of continued development, Castle Group Ltd reserve the right
to change any specification without due notice.
