Powerwerx LVD-35 User manual

Operaon    
The voltage sensing LVD-35 is an automac switch
designed for 12 volt vehicle electrical systems with
negave ground. The model LVD-35 is rated at 35 amps
connuous duty. Using the 10 posion rotary switch,
you can select a low voltage disconnect value of 10.6V to
12.2V. The unit will automacally shut o the DC power
to the load aer the low voltage level is reached. A low
baery disconnect delay of 20 seconds is built in so that
the LVD-35 will not turn o during engine starts and
momentary current dips.
Two built-in LED lights show the LVD-35 current status.
When the voltage to the input is above the LVD users
seng, a solid GREEN LED light means that power is
passing through the unit as normal. When the voltage
reaches the LVD level, a slow FLASHING GREEN LED
light is displayed but power connues to ow through
for the 20 second delay period. A red ashing LED light
will display when the low voltage baery level has been
reached and power is now disconnected to output load
terminals.
LVD-35 also includes an Over Voltage Protecon System
which will automacally shut o your electronics if the
voltage reaches over 16.5 volts. A solid RED LED light will
display unl the over voltage condion is corrected.
Hook-up&Installaon
The LVD-35 should be installed in between the vehicle
baery and the DC load. Typically, the load is a two-way
mobile radio, mobile computer and other vehicle DC
electronics. Standard installaon involves installing the
LVD-35 in between the baery and the DC feed side of
the electronics using the supplied ring terminals. When
installing the LVD-35, you need to connect (posive and
negave DC power IN & posive and negave DC power
OUT). No ignion connecon is required. This model can
be installed inside of the vehicle or engine compartment
as these units are waterproof.
CAUTION: Make sure you connect the + / – leads to the
correct polarity on both input and output. Make sure
you also use the supplied star washers and do not over
ghten the ring terminal screws.
RotarySwitchSengs
Set the Rotary Selector to the
desired seng.
Use a small at screwdriver to
change the rotary switch posion.
Detailed sengs are also located
on the side of your unit.
EmergencyOverrideSwitch
An extra ring terminal posion
(AUX) is located next to the LED
lights. By momentary applying 12V to this terminal (with
a user supplied switch) it will automacally override and
energize the LVD output for an addional 15 minutes of
use for emergency operaon.
0: 10.6 LVD
1: 10.8 LVD
2: 11.0 LVD
3: 11.2 LVD
4: 11.4 LVD
5: 11.6 LVD
6: 11.8 LVD
7: 12.0 LVD
8: 12.1 LVD
9: 12.2 LVD
LVD-35 ▪ Rev 4/2015
OUTPUT
+
-
INPUT
LED
AUX SWITCH
+
-
R
G
ToElectronics
ToBaery
SelectableLowVoltageDisconnect
LVD-35UserManual
ÑLVD-353Ó
23695 Via Del Rio, Yorba Linda, CA 92887 ▪ 714-674-0073 Phone ▪ 714-674-4949 Fax

Specicaons
• AmperageRang: 35 Amps max @ 12V connuous
duty
• LowStandbyCurrentDraw: 5mA in standby mode,
100 mA normal operaon mode
• ReconnectVoltage: 12.7 VDC
• CompactSize: 3½”L x 2”W x 1½”H
• Weight: 0.5 lbs. (229 grams)
• Construcon: Poed water proof design. Can be
mounted inside an engine compartment.
• LEDStatusIndicators:
oSolid Green LED light = power passing through
normally
oFlashing Green LED light = Selected LVD level has
been reached-waing for disconnect delay to
turn OFF.
oSlow Flashing Red LED light = LVD level reached
and output to load is OFF
oSolid Red LED light = Overvoltage Condion
• Connecons: +/- Power IN from Baery. +Power
OUT to electronics, negave is oponal on OUT (no
ignion wire required). Emergency Override Switch.
Troubleshoong
Unit will not turn ON:
• Check for reverse polarity on Input and Output
connecons
• Check that Baery power is connected to the Input
connecon
LED Lights Not Working:
• Check (-) Negave Input connecon for good ground
to baery
• Check Input (+) posive connecon
Red LED Light Solid ON:
• Input power is over 16.5V, reduce input voltage to
15V or less, unit will auto-reset
Warranty:
Powerwerx support policy is simple; we want you to be
happy! If you have a problem, please feel free to contact
us and we will do our best to get you up and running as
soon as possible.
The Powerwerx LVD-35 has a one-year limited warranty.
We will repair or replace your LVD-35 if you encounter
any problems within one year of purchase. We reserve
the right to charge a reasonable fee for repairing units
with user-inicted damage. It is your responsibility to
ship the defecve unit back to Powerwerx. We will pay
for shipping the replacement to you within the warrantee
period.
LVD-35 ▪ Rev 4/2015
AlsoLookatourOtherModels:
ITS-12–DCTimer/LVD–BaeryGuard
• Heavy Duty design rated at 35A connuous
duty
• Selectable low voltage disconnect (11.4 or 11.0
VDC)
• User selectable mer posions (2, 15, 30
minutes, 1, 2, 3, 4, 5, 8, 12 hours)
• Auto Reconnects when Voltage returns to safe
level
APS-12–DCAutomacPowerSwitch/Timer
• No ignion connecon required: Automac
On/O Operaon
• Ideal for all 2-way radios, computers and DC
electronics – 25A current rang
• User selectable mer posions (2, 15, 30
minutes, 1, 2, 3, 4, 5, 8, 12 hours)
Moreinformaonat:www.powerwerx.com
LVD-35UserManual
23695 Via Del Rio, Yorba Linda, CA 92887 ▪ 714-674-0073 Phone ▪ 714-674-4949 Fax
ÑLVD-353Ó