BMT Holdings Pty Ltd A310V6 Manual De Usuario
BMM
®
System
Manual
– Blast Anytime BMM Activator
3
www.bmt.com.au
2.3 Test A BMM
The Test button confirms a BMM works.
• Position the Activator within 100 mm (or 3”) and
press the grey
TEST
button
❼ (the display ❹
can be any number). The most effective way is to
position the Activator as demonstrated in the
photo (by resting the activator on the BMM). The
Activator LEDs illuminate for about 5 seconds
and then turn off.
• It is not necessary to Test each BMM.
2.4 Set a Transmit Delay
• In BAT mode, (BAT LED is green) press the yellow
+1
or
+10
buttons
❸ to select the desired
start-up delay. The +1 button sets the delay in increments of 1 hour, up to a maximum of 99
hours. The +10 button sets the delay in multiples of 10 hours, up to a maximum of 90 hours.
The display
❹ shows the delay in hours.
• In Normal mode, (Normal LED is green) press the yellow
+1
button
❸ to select the desired
start-up delay time in multiples of 4 hours, up to a maximum of 36 hours. The display
❹
shows the actual delay in hours
.
2.5 About the Transmit Delay
• A BMM transmits at constant power for 10 – 12 hours.
• To accurately calculate the depth of a BMM after the blast, it should be located within 12
• To accurately calculate the depth of a BMM after the blast, it should be located within 12
hours since activation. A BMM transmits for about 24 hours but the signal slowly decrease
and eventually it switches off. If BMM is located after the initial 10-hr period, its horizontal
location is accurate but not its depth.
• The delay feature was specifically designed for mines that could not access the muckpile
immediately after blasting due to light and/or safety reasons.
2.5.1 Delay in Normal Mode
• When a transmit delay is set in Normal mode, the BMM will transmit for approximately 15
minutes before switching off and sleeping for the requested delay period. At the end of the
delay period, it will transmit normally until the battery runs out of power.
• Calculate the delay, in hours, from the time the BMMs are installed in a blast to the BMMs
transmitting. Refer to the
“Monitoring Procedure Manual” for more information about how the
transmit delay may be used.
Place the Activator on the BMM; press TEST to check if
a BMM works.