4. Other cautions for usage
1) Charge of the battery inside of the Proximity Exhaust Noise Measuring System
* Remaining battery level right after the delivery or after long storage will be very low. Charge
the battery once a month for about 10 hours. (Battery is needed even when the AC power is
used.)
* Do not charge over 12 hours to prevent the battery life becomes shorter.
* When the remaining battery level becomes low, normal operation such as printing by the
printer cannot be made. In some cases, the main body will be re-set during the printing.
* To charge the battery, turn the power switch to OFF and use AC power. Charging with the
power switch ON will require long time for charging and full charge cannot be achieved.
2) Battery in the operation (wireless) part
* Do not reverse the polarity of + and -.
* Use the battery charger included with the system for charging of the battery. Charge 4
batteries at the same time and use them at the same time. Do not mix them with other
rechargeable batteries or dry batteries. To make the battery last longer, charge it before it is
used up.
* The end of the battery life will be when the usable time becomes very short even after it is
fully charged.
* Remove the battery when the system is not used for a long time. Store the battery avoiding
any metal objects come in contact with + and – terminals.
3) Do not use the system near any device that produces electrical noise. It may cause
malfunction.
4) When the car battery (12 V) is used as a power source for the system, use the DC power cable
included with the system and make connection by following procedure.
①
Turn the power switch of the main body to OFF.
②
Connect the black wire of the cable (earth) to the earth terminal of the battery.
③
Connect the red wire (12 V) of the cable to the 12 V power terminal of the battery.
④
Turn the power switch of the main body to ON.
5) Turn the power of the main body to OFF when connecting the microphone.
6) Do not touch the diaphragm surface of the microphone. Also attach the windscreen before
use.
7) Be sure to hold the connector part for disconnecting the cables.
8) Place the cables so that excessive stress will not be applied to them.
9) For tachometer sensor, 3 types of sensors (AVL sensor, pulse sensor IP-292, IP-296) are
included. Recent automobiles produces emits very little engine revolution noise to the outside
of the vehicle, making it harder to detect it even with the tachometer sensor. Select most
suitable sensor for reliable detection of the revolution speed.
10) When AVL sensor is used and if there is no metal parts near the engine, attach a metal clamp
(screw type) etc. and then attach the AVL sensor to the clamp. (Clamp shall be prepared by
user)
11) When pulse sensor is used, make sure that the cores are contacting closely with each other.