3
AB-7521
 CAUTION
General
Use this product under the operating 
conditions  (for temperature, humidity, 
power, vibration, shock, mounting 
location, atmosphere, etc.) listed in the 
specications.
Failure to do so may cause fire or 
device failure.
General
Take anti-lightning surge measures 
based on regional and building 
characteristics.
Lightning may cause fire or critical 
damage to this product if protective 
measures are not taken.
General
Provide a power circuit breaker for the 
power source to this product.
The product does not have a power 
switch.
General
For the sake of safety, installation and 
wiring must be performed by qualified 
personnel in accordance with all 
applicable safety standards.
Failure to do so may cause fire or 
electric shock.
Prohibition
Do not put a load or weight on this 
product. 
Doing so may damage the product.
General
All wiring must comply with applicable 
codes and ordinances.
Otherwise there is a danger of re.
 CAUTION
Prohibition
Do not disassemble or modify this 
product.
Doing so may cause device failure or 
electric shock.
General
If more than the rated power voltage 
is accidentally applied to this product, 
replace the product with a new one for 
your safety.
Failure to do so may cause device 
failure or cause overheat.
General
After wiring, attach the cover.
Failure to do so may result in electric 
shock or device failure.
General
To connect the wires to the product, 
use crimp terminal lugs with insulation.
Failure to do so may cause short circuit 
leading to re or device failure.
General
When installing the product, be sure to 
connect the wires securely. Failure to 
do so may result in measurement error 
or cause overheating or device failure.
IMPORTANT
•
 Do not use transceivers or low-power 
wireless devices near this product.  
Doing so may cause radio wave 
interference and malfunction of the 
product.