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EPM-P Series Peak and
Average Power Meters
Option K01
Battery Operation
E4416-90034
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General Information
General Information
The battery enables the use of your EPM-P power meter in operating
environments where there is no convenient access to an ac power
source.
With the battery option installed and the power meter connected to an
ac power source, the met er operat es fro m the ac source and t he b attery
runs in a controlled charge mode.
If the meter is powered up under battery power, or if ac power is lost
while connected to an ac source, a pop up window displays
Running Under Battery Power
backlight mode (see see Backlight on page 4) is over-ridden and the
backlight is on continuously. Pressing the softkey returns the
display to the previous screen.
Carry Case A soft carry/operating case is available which makes it easy to
transport and operate your power meter in installation and
maintenance environments. To obtain a carry case order Agilent part
number 34141A.
. When this screen is visible the
Continue
CAUTION Do not attempt to recharge the power meter or operate the power
meter from an ac power source while it is contained in the carry case.
2 EPM-P Battery Operation
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Battery Operation
Battery Operation
Running Times For a single channel EPM-P power meter, a fully charged battery is
typically sufficient for up to 160 minutes continuous operation with
the backlight off, and up to 110 minutes with the backlight on.
For a dual channel EPM-P power meter, a fully charged battery is
typically sufficient for up to 75 minutes continuous operation with the
backlight off, and up to 45 minutes with the backlight on.
Battery Status You can check the status of the battery by pressing , ,
Battery
scale to show the charge condition of the battery. Below the analog
scale, the estimated remaining operating time is displayed.
Running time can be increased by operating the power meter with the
display backlight turned off (see Backlight on page 4).
. The Battery Status screen (Figure 1) uses an analog meter
Figure 1 Battery Status
System
More
During battery operation, when there are less than 10 minutes of
running time remaining, the message is displayed. In
addition, a pop up window appears every minute with the message
Battery Power Low
EPM-P Battery Operation 3
.
Battery Low
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Battery Operation
Charging Times The battery charges automatically when the power meter is connected
to an ac source. From an empty state, the battery is fully charged in
approximately 3 hours.
Backlight Working with the backlight off reduces the drain on the battery and
increases the operating time. When you are operating the power meter
under batt ery power you can turn the display backlight off or on, or set
it to timed mode. In timed mode the display backlight turns off 10
minutes after the last key press - the display can be turned on again by
pressing any key.
The display can be comfortably read in ambient daylight with the
backlight off.
To access the backlight menu press , , . Use the
softkeys on the menu to select either , , or .
System More
On
Off
Battery
Timed
NOTE When the power meter is connected to an ac power source the
backlight menu is greyed out and backlighting is on.
4 EPM-P Battery Operation
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Battery Removal/Replacement
Battery Removal/Replacement
The battery unit is easily removed and replaced. Follow the
instructions given in Figure 2. To obtain a replacement or spare
battery unit for your EPM-P Option K01 order Agilent part number
E9287A.
WARNING This product uses a Nickel Metal Hydride battery.
Do not short circuit the battery terminals.
Risk of explosion if battery is replaced by an incorrect type.
Do not subject the battery to excessive heat.
Do not dispose of by burning.
Refer to your local country regulatory requirements on the disposal of
Nickel Metal Hydride batteries.
CAUTION Observe static precautions while removing and replacing the battery
module.
EPM-P Battery Operation 5
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Battery Removal/Replacement
2
1. Using a flat headed screwdriver, turn the two spring-loaded catches one
quarter turn anti-clockwise.
2. Holding the catches, pull the battery assembly clear of its slot in the power
meter.
3. Support the closure assembly on a flat surface.
4. Pinch the release tab between finger and thumb while -
5. lightly pressing down on the battery module.
Replacing the battery is basically a reversal of the removal procedure.
5
4
1
Release Tab
Battery
Module
Closure
Assembly
3
Figure 2 Battery Removal/Replacement
6 EPM-P Battery Operation
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Regulatory Information and Specifications
Regulatory Information and
Specifications
With the addition of the battery option, some Regulatory and
Specification information has changed from the published information
in the EPM-P Installation Guide supplied with your EPM-P power
meter.
Statement of
Compliance
Operating
Environment
This product has been designed and tested for compliance with IEC
60529 (1989) Degrees of Protection Provided by Enclosures (IP Code).
Level IPx4 is attained if, and only if, the carry case (Agilent
Technologies part number 34141A) is fitted.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001 du Canada.
This product is designed for use in a sheltered environment (avoiding
extreme weather conditions) in accordance with Pollution Degree 3
defined in IEC 60664-1, with the carry case (Agilent Technologies part
number 34141A) fitted over the instrument.
The product is suitable for indoor use only when the carry case is not
fitted.
Physical Weigh t : (including battery) 5.2kg
Power
Power Dissipation: 110 VA Maximum
Requirements
Cooling
Requirements
To provide adequate cooling, and air gap of approximately 75mm (3ins)
should be maintained around the vented sections of the instrument.
CAUTION To avoid unnecessary over-temperature conditions while the carry
case is fitted, only operate your EPM-P from the battery pack - do not
apply an ac mains supply voltage.
EPM-P Battery Operation 7
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