Crowcon T4 - Page 36

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When T4 detects the applied test gas the countdown screen will
be replaced with the bump test gas reading screen, this will continue
to show the gas readings until the bump test result is displayed.
i
If the test gas is not supplied before the end of the
countdown the bump test will fail, the bump test will be
set to due and, if congured, the +ve Safety™ LED will be
illuminated red.
X If the bump test is successful a tick will be displayed for each
gas that passes, if the bump test is not successful a cross will
displayed for each gas that fails.
X The remove gas countdown screen will then be displayed, the
test gas must be turned off and the bump/calibration plate
removed.
X The updated bump test date due screen will be displayed
following a successful bump test.
X If the bump test was not successful the bump due now screen
will be displayed and, if congured, the +ve safety LED will be
illuminated red.
X During the bump test as gas is applied the instantaneous alarms
will be activated as the gas level exceeds the congured alarm
level.
X This will be indicated by the appropriate ‘bell’ alarm and gas type and unit icon ashing repeatedly
but the sounder, LED’s and vibrator will be disabled during the bump test.
X A short period after the completion of the bump test the sounder, LED’s and vibrator will be enabled.
X Press the operator button to cancel the alarm.
Contents
Exit
Prologue
Operation
Maintenance
Specication
Accessories
Troubleshooting
Appendices
Warranty
Set-up