Sensors & Software Inc. PE-PRO-TLF ユーザーズマニュアル

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4-Care and Maintenance
pulseEKKO PRO TLF Transmitter
12
Charge batteries at room temperature whenever possible.
The receiver and transmitter contain a voltage monitoring circuit that will turn off the unit when the
input voltage drops below 10.2 volts.  If the voltage of the discharged batteries is measured some
time after they have been changed it will be higher than 10.2 volts (this is normal).  Do not mix
charged and discharged batteries and DO NOT attempt to use discharged batteries a second
time.
If a battery has been deeply discharged or left in a discharged condition for some period of time it
may not accept charge immediately when it is connected to the charger (The fast charge LED will
not light).  If the fast charge light does not come on within 6 hours the battery should be
considered damaged and discarded.
Do not assume that a battery that is still charging after 8 hours is nearing the end 
of its charge cycle.  Typical charging time for an empty battery is 12 hours from 
start of fast charge. When charging a depleted battery it is normal for the charge 
light to go out after 6-8 hours.  The charger has gone into trickle mode only and 
the battery must remain in the charger for the minimum 12 hours required. 
Ensure that the batteries are fully charged before storing.  If practical, store the batteries in a cool
place, 10
o
C (a refrigerator is ideal), but make sure the temperature is not likely to drop below -
30
o
C or the electrolyte may freeze and possibly split the case.
4.5
Testing Batteries
If you are experiencing reduced operation time with either your pulseEKKO Pro Transmitter the
problem will be the result of a damaged 12 V Battery or a poor battery connection in one of the
battery compartments. The pulseEKKO Pro Transmitter is designed to operate while using a 12V
battery in one battery compartment or both battery compartments.  This feature can be used to
load test the batteries, as outlined below:
a) Label all batteries so that they can be distinguished from one another.
b) Insert fully charged suspect battery into the battery compartment of either the 
Transmitter or Receiver unit.   
c) Open the empty top battery compartment and measure the D.C. voltage at the two 
contact points on the battery holder plate.  A suspect battery will show a  substantial 
drop in voltage when the battery is loaded down (POWER ON) and will slowly drop to 
less than 10 V after 2 hours of monitoring voltage.  A good battery will remain at 12 V 
or higher after 2 hours of monitoring voltage.