Right Weigh 202-DDG-01 User manual

Interior Digital Load Scale
202-DDG-01
Installation and Operation Manual
Please read carefully before installation

Contents
Specifications: ...................................................................................................................... 2
1.0 Installation and Set-up Overview.................................................................................... 3
2.0 Gauge Installation and Electrical Connection.................................................................. 5
3.0 Airline Installation and Routing ..................................................................................... 8
4.0 System Settings Overview ............................................................................................ 11
4.1 Change Air Sensor Names ........................................................................................ 11
4.2 Enable Estimated Steer Axle..................................................................................... 12
4.3 Change Units (LBS or KG)....................................................................................... 13
4.4 Adjust Backlight and Screen Contrast....................................................................... 14
4.5 Set Calibration Security PIN Code (Optional) ........................................................... 14
4.6 Reset Calibration Data to Factory Default Values ..................................................... 15
5.0 Calibration Overview ................................................................................................... 16
5.1 Gather and Enter Calibration Data........................................................................... 16
6.0 Operating and Weighing Instructions .......................................................................... 18
7.0 Troubleshooting........................................................................................................... 19
8.0 Additional Support ...................................................................................................... 20
Appendix A ....................................................................................................................... 21
Warranty Statement .......................................................................................................... 22

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Specifications:
Operating Temperature: -20° C to +85° C (-4° F to +185° F)
Storage Temperature: -20° C to +85° C (-4° F to +185° F)
Power Supply: 9 VDC to 32 VDC
Units: Pounds (LBS) or Kilograms (KG)
Housing: Black ABS

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1.0 Installation and Set-up Overview
The Right Weigh 202-DDG-01 digital dash gauge is a self-contained monitoring device that
has one internal air pressure sensor. It is designed to monitor one air suspension axle group
that has one Height Control Valve (HCV).
Note: Independent lift axles cannot be considered part of an axle group.
Warning! The 202-DDG-01 digital dash gauge must be mounted inside the vehicles cabin. It
is not designed to withstand harsh external environments.
An axle group can consist of one, two, or three axles.
Single Axle Group Tandem Axle Group
Tri Axle Group

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Installing and setting up the Right Weigh digital gauge involves four major steps.
1. Gauge installation and electrical connection:
This involves mounting the gauge into the vehicle’s dash panel or another
appropriate location within the vehicles cabin.
2. Airline installation and routing:
This involves attaching a new airline that runs from the axle group to the gauge
mounting location.
3. Gauge configuration and feature set-up:
This involves configuring the gauge to the vehicle and setting up individual features.
4. Gauge calibration:
This involves gathering and entering empty and loaded weight values for the axle
group being monitored.

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2.0 Gauge Installation and Electrical Connection
The 202-DDG-01 digital dash gauge is designed to be panel mounted and can be installed in
many different locations within the vehicles cabin.
Step 1:
Choose a location to mount the gauge.
Note: If you choose to mount the gauge in the vehicles dash panel, you will need at
least 3 inches (76 mm) of clearance on the inside of the dash to accommodate the
electrical and airline connections. Remove the dash panel and confirm the available
space before proceeding. If needed, refer to the vehicle owner’s manual or a qualified
technician for detailed instructions on dash panel assembly for your vehicle.
Note: In some cases, the construction of the vehicles dash panel will not allow
installation of aftermarket gauges. Therefore, the gauge must be mounted using an
aftermarket gauge pod or bracket system.
Location options as follows:
a) Any available factory 2-1/16 inch (52 mm)
gauge hole.
b) Remove and replace a factory installed drive
axle air suspension pressure gauge.

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c) Cut a new hole in the dash panel using a 2-
1/16 inch (52 mm) hole saw.
DO NOT cut into the dash panel without
first checking behind it to ensure internal dash
components will not be damaged!
d) Aftermarket gauge pod or bracket system.
Use this option if the vehicles dash panel
cannot accept aftermarket gauges.
Step 2:
Insert the Right Weigh digital dash gauge into the mounting hole.
Hold the gauge in position so the display appears
level on the dash panel or gauge pod/bracket.

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Note: The thickest portion of the gauge bezel
indicates the bottom of the display face.
Step 3:
Screw the gauge nut onto the back of the gauge until it is tight, and firmly holds the gauge
in position.
DO NOT OVER TIGHTEN!
This could cause problems with the display and
touchscreen.
Step 4:
Locate a constant electrical power and ground circuit that is controlled by the ignition
switch. Attach the RED wire to a positive (+) power source and the BLACK wire to a
chassis ground (-) source.

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Note: The required supply voltage must be
between 9 VDC and 32 VDC.
DO NOT connect the power and ground wires
into the existing dimmer switch circuit.
3.0 Airline Installation and Routing
An auxiliary airline must be installed to connect the 202-DDG-01 digital dash gauge to one
air spring from the axle group being monitored.
Note: The 202-DDG-01 gauge cannot be used on an axle group that has two HCVs. To
monitor an axle group that has two HCVs you will need the 202-DDG-02 dash gauge.
Note: For a list of required parts that are not included with the Right Weight digital
gauge, please see Appendix A.
Step 1:
Insert a Street Tee fitting (not included) into the top of the most easily accessible air
spring from the axle group.
Dump the air from the suspension system and
remove the suspension airline and fitting.

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Insert the Street Tee fitting into the top of the air
spring and then reattach the suspension airline into
the Street Tee.
Note: Fitting types and thread sizes will vary
between vehicle makes and models. Make sure to use
matching thread sizes. Additional fittings may be
required.
Step 2:
Using approved fittings that match the thread size of the Street Tee, connect a 1/4 inch
nylon airline (not included) to the Street Tee.
Note: Make sure the airline is long enough to reach
the mounting location of the gauge.
Step 3:
Route the new airline up into the cabin where the Right Weigh digital dash gauge is
mounted.
Make sure to avoid sharp edges and engine components that could become hot.
Secure the airline with zip-ties along the way.