10
DA-500 Drive-Alert Troubleshooting Tree
Step 1 - Check to make sure the Power Light is on. If not, replace the internal 1A fuse, or send to Mier Products for repair.
Step 2 - Make sure the sensor is attached correctly and securely to the control panel.
Step 3 - Make sure the sensor is located close enough to detect moving vehicles.
Step 4 - Make sure the sensor is at least 20 feet away from underground or overhead power/phone lines or an invisible fence, and the control panel
is at least 15 feet away from cellular or cordless phones, wireless routers, etc.
Step 5 - Make sure the sensor is at least 50 feet away from the street/road traffic to prevent false alarms.
Step 6 - Make sure there are no nicks or cuts in the cable allowing moisture to get inside and cause false alarms.
False Alarms
No Detection or
Intermittent Detection
Check sensor to
make sure it’s
secure and placed
20’ away from Main
Power/phone lines
Check panel is 15’
from cell phones,
cordless phones,
routers, etc.
Check sensor is 50’
away from street
Call Mier Products’
Free Tech Support.
They will work with
you and might
recommend
returning the system
to Mier Products for
diagnosis and
repair.
Correct as
neded
Check sensor wire
connections at panel
for no shorting &
correct attachment
(Red=T1, Black=T2,
Ground = T3)
Existing
New
Fix
Not fixed
Not fixed
Not fixed
Still not fixed
Existing
New
Check for two-way
radio interaction
Not fixed
Secure,
increase
distance, or
cross lines at
right angles
Fix
Increase
distances
Fix
Increase
distance or
reduce
sensitivity
Fix
Install on
cable RF
Cable Clamp
(Radio Shack
#273-105 or
eq.)
Fix
Remove all sensor
wires from terminal
block and see if
panel is “quiet.”
Remove all
accessory wires
from terminal block
and see if panel is
“quiet”
Replace
Sensor &
Cable
Remove Shield
(bare) wire from
terminal 3 of terminal
block and retry
Fix
Not fixed
Not fixed
Not fixed
Replace
Accesso-
ries
Fix
Fix
Call Mier Products’
Free Tech Support.
They will work with
you and might
recommend
returning the system
to Mier Products for
diagnosis and
repair.
Check sensor
resistance at 900-
1100 OHMS Red to
Black
Check sensor wire
connections at panel
for no shorting &
correct attachment
(Red=T1, Black=T2,
Ground = T3)
Check Blanker LED
located on circuit
board is OFF, and if
not turn fully
counter-clockwise
Check sensor
placment 1 foot max
away from edge of
driveway and 1 foot
max deep in ground.
Not fixed
Not fixed
Not fixed
Check panel
sensitivity at MAX
and do finger test
across BK and S
terminals
Not fixed
Replace
Sensor &
Cable
Call Mier Products’
Free Tech Support.
They will work with
you and might
recommend
returning the system
to Mier Products for
diagnosis and
repair.
Still not fixed
Place two fingers
across BK and S
terminals
Relay Clicked but there
was no Whistle
Call Mier
Tech
Support
Check Blanker LED
is OFF and if not
turn fully counter-
clockwise
No Relay
Click or
Whistle
Not fixed
Not fixed
Replace
Sensor
and cable
Fix
Check sensor
resistance at 900-
1100 OHMS Red to
Black
Flip Whistle-Switch
25 times and try
again.
Call Mier
Tech
Support
Relay
Clicks but
no Whistle
Call Mier Products’
Free Tech Support.
They will work with
you and might
recommend
returning the system
to Mier Products for
diagnosis and
repair.
Still not fixed
DA-500 Specifications
• Input -- 120 VAC, 50-60Hz, 3.6 Watts
• Output -- 24 VDC at 100 Milliamps
• Surge protected from transients
• Adjustable sensor sensitivity
• Adjustable time control for electronic whistle
• Operating temperature -- 20 degree F to 160 degree F
• Provisions for activating optional timer control
• Weight -- six (6) pounds
800-473-0213 ~ [email protected] ~ www.mierproducts.com
