13 Service Return Procedure.............................................36
14 How to Order Additional Products ....................................37
Railmaster
™
User’s Manual
Welcome to Decatur Electronics, Inc.
Thank you for choosing this Decatur Electronics product — A highly
advanced radar unit that will reward you with years of dependable
service. The Railmaster™ incorporate high performance and long
range, with many leading features. We urge you to study this manual
before using the Railmaster™ so you can maximize the benets of
this sophisticated radar device. We believe you will be pleasantly
surprised by the features and advantages.
If you are as pleased with its performance as we think you will be,
ask your Decatur sales representative about other Decatur products
including the Genesis™ line of radars, the Onsite™ line of speed
trailers, dollies, and pole signs and the Responder™ line of in-car
video systems.
—The Management and Sta at Decatur Electronics,
4
About This Manual
This manual contains valuable information to help you set up, use
and maintain your radar, so you can extend its life and keep it at peak
performance. Please take a moment to read through it, and keep it
handy for future reference.
Note the following symbols in this manual:
Indicates a warning message about safety
precautions. Please read it carefully.
Indicates a helpful tip or precaution to note.
1. Safety Information
All service needs should be referred back to the manufacturer.
WARNINGS
Railmaster
™
User’s Manual
• Do not over voltage the radar - it can damage the unit!
See notes.
• When replacing batteries in the Railmaster™ you
should replace all 6 with new batteries even if you
suspect that only one cell is defective.
• Use rechargeable Nickle-Metal-Hydride batteries only.
• The Railmaster™ is designed to operate o of
conventional +12 VDC (10.8 to 16.5 VDC) from the
power cable. In addition the Railmaster™ is also
designed to operate at 7.2VDC from the internal
batteries. Over voltage to the power cables or incorrect
batteries can cause damage.
5
Railmaster
™
User’s Manual
• Opening the Railmaster™ (other than battery
replacement) automatically voids any warranty still in
eect. There are no user serviceable parts inside.
• Do not expose the Railmaster™ to excessive moisture.
Never submerge the device. Violation of these
guidelines may void the warranty.
• Do not drop the Railmaster™ on hard surfaces since
damage could occur. Units damaged by dropping or
abuse are not covered for warranty repair.
6
2. Receiving Inspection
• When you receive your radar, inspect all components for
freight damage that might have happened during shipping or
unloading.
• Notify the freight company immediately of any damage,
preferably while the driver is present. Record the damage on the
bill of lading and keep a record of the problems or damage.
• The package should include the following pictured items along
with this User’s Manual.
Railmaster
™
User’s Manual
Railmaster™ Radar Detachable power cable
Tuning Fork Batteries & Carry Case
battery holder (case style may vary)
7
Railmaster
™
User’s Manual
3. Getting Started
3.1 Introduction
The Railmaster™ is a stationary radar that allows you to track the
speed of targets approaching, receding, or moving in both directions
simultaneously.
3.2 Battery Charging
The Railmaster™ is designed to operate o of six (6) rechargeable
Nickel-Metal-Hydride batteries (or o the DC power cord). When
you rst receive your radar, the batteries will need to be charged for
the rst time before using. Once batteries have been charged if you
do not use the Railmaster™ for 3-4 weeks, you will want to recharge
the batteries before use in order to get the full run time. To charge
batteries for the rst time or to replace the batteries following steps
3.6 to 3.7.
3.3 Removing the Battery Holder
The battery holder is located inside the handle of the Railmaster™
and is accessed by means of a sliding door. When rst received,
the holder should already have batteries installed, but if not then
you will need to remove the holder and loaded it with batteries. To
remove the battery holder slide the battery cover to the right until
the battery holder is released as shown in Figure 3.3. The door can be
completely removed from the slide.
Figure 3.3
Slide the battery door open.
8
3.4 Battery Installation
Insert the batteries into the battery holder following the polarity
guide that is on the inside of the battery holder (Figure 3.4a.) Once
properly loaded the battery holder will look like the example in
Figure 3.4b
Railmaster
™
User’s Manual
Figure 3.4a
Battery holder
Figure 3.4b
Battery holder with batteries
Notice that the negative side of each battery goes to the spring
contacts of the holder.
3.5 Inserting the Holder into the Railmaster™
The battery holder is designed so that it can only make contact with
the power connections inside the gun if the holder is slid into the
gun in the correct way. If you look closely at the holder you will see
that there is a positive and negative terminal on it. These need to be
inserted into the gun with the terminals located at the top as shown
in Figure 3.5.
9
Railmaster
™
User’s Manual
Figure 3.5
Insert batteries.
Once the batteries have been properly loaded into the holder and
the holder has been inserted into the handle of the gun then the
door can be put back in place and slid closed. If you have not already
charged the batteries using an optional NiMH charger, you are now
ready to charge the batteries using the power cable.
10
• If the holder has been placed incorrectly into the
handle the door can not be put back in place and
closed..
3.6 Charging the Batteries
The power cable that comes with the Railmaster™ can be used to
either power the Railmaster™ directly from your vehicle receptacle
(or portable battery pack) or to charge the Railmaster's™ batteries.
Once the batteries have been properly installed into the holder
and inserted into the handle plug the power cord into the power
connector at the base of the handle by aligning the red dot on the
power cord’s plug with the red dot on the connector. Failure to align
the plug with the connector properly will result in damage to the
pins of the jack. Reference gure 3.6 for proper alignment.
Figure 3.6
Align the dots.
Next, plug the lighter plug into an active cigarette lighter receptacle
in the vehicle. The red led on the lighter plug should come on
showing that power is being applied to the Railmaster™. With
the Railmaster™ turned o, it will take approximately 2 hours to
fully charge the batteries. Turning the Railmaster™ on with the
cord plugged in will stop the charge cycle allowing the gun to be
operated from the power cord. Batteries do not charge when the gun
is turned on.
Railmaster
™
User’s Manual
3.7 Charge Status Indicator (LED)
The status of the charge can be determined by the Charge Status
Indicator LED located on the bottom of the handle (See gure 3.7).
The table below denes the status.
Fast blinking green light = checking battery condition
Medium blinking green light = charging battery
Solid green light = charged
Solid red light = charging error
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