14POINT7 Edge AFR User manual

JRP Edge Digital Gauge - AFR + Spartan 3 Lite Manual Page 1 of 4
Manual - 52mm Edge AFR + Spartan 3 Lite
WARNING - Please Read Entire Manual Carefully!
➥ Main Features
• ⛽Air fuel/ Lambda Display, Petrol 10-20 AFR, Lambda 0.68-1.36, Diesel 10-40 AFR (with compatible input)
• Onboard memory battery. Gauge will retain settings even after being disconnected from the vehicles battery.
• 󲗈High contrast vertically aligned Liquid Crystal Display (LCD), no shadows when backlight is turned off.
Different colour values can be chosen for night and day running mode.
• 󲒝Brightness can be set to 5 different values. For both night and day running mode.
•  3x different movements can be set for indicator display type.
Edge series 52mm
AFR Gauge
52mm
Gauge pod
• Do not change settings while driving.
• This product is designed to work with 12 Volt (v) vehicles only! This product will not operate on 6v or 24v systems.
• Please have this product installed by store or dealer where product was purchased.
Installation by the customer will void the warranty.
• Do not disassemble or modify this product. Such actions will not only void the warranty, But may also damage or
destroy the product.
• Do not perform installations of this product immediately after the engine has been switched off. The engine and exhaust system
are extremely hot at this time and can cause burns if touched.
1.5m power
cable
200mm power
link cable
3m yellow
signal cable
Remote
button
• Power-supply voltage:
10v to 15v DC (12v vehicles only)
• Current consumption:
+B line: MAX 120mA
IGN line: MAX 120mA
ILM line: MAX 2mA
(No Peak Icon)
• Scale indicator
• Remote button port
• Sensor port
• Button
• Power ports
(Front) (Back)
Felt strip spare U-bracket pillar
mount kit
Spartan 3 Lite
Stand +double sticky
Gauge Specifications
Blade fuse
link kits x2
(ADV or Bosch)
Wideband + link cable
What’s Included In Your Kit?

JRP Edge Digital Gauge - AFR + Spartan 3 Lite Manual Page 2 of 4
Manual - 52mm Edge AFR + Spartan 3 Lite
⚡How To Connect Your Wiring
(0.3 - 1A) Fuse
Yellow signal wire →Spartan “Terminal 6”
• Disconnect the negative terminal
on the battery. Connect the power
wires as shown. Warning! Always install
a fuse where +12v is indicated.
• Connect the yellow signal wire to the
Spartan 3 Lite Wideband 0v to 5v
output at Terminal 6.
*Pay close attention to the grounding requirements
in the Spartan instructions below. (Grounds Terminal 2 & 4).
• (Optional) Install remote button wire and connect to the gauge.
• Install 1x felt sticky strip if required (included) on inside edge of pod.
• Reconnect negative battery wire and start using the gauge.
Terminal No: Connects To:
1. Spartan Power Engine running 12v (+)
2. Spartan Ground Ground At ECU/ Cabin
3. O2 Heater Power Engine running 12v (+)
4. O2 Heater GND Ground Engine Block
5. Narrow Band (Oponal)
6. WideBand Edge Yellow Signal wire
7 - 10 Program (Diagnoscs)
*WARNING!
READ ALL SPARTAN INFORMATION CARFULLY
before powering unit. Incorrect power sequence
can damage sensor and void factory warranty!
Lite
⚡How To Connect Spartan Wiring - Follow All Warning information!
The Wideband Oxygen Sensor should be installed between the
10 o’clock and the 2 o’clock position, less than 60 degrees from
vertical, this will allow gravity to remove water condensation from
the sensor. The Oxygen Sensor must be installed before catalytic
converters. The sensor should be installed about 600mm (2ft) away
from the engine exhaust port - in Naturally aspirated engines.
For Turbocharged engines, the sensor can be installed
immediately after the turbocharger (In the Dump Pipe).
For Supercharged engines - the sensor should be installed 900mm
(3ft) from the engine exhaust port.
10
O'clock
2
O'clock
WARNINGS From ‘14POINT7’ Spartan Manufacturer 
• Do not connect or disconnect the Wideband Sensor while
Spartan 3 Lite is powered.
• The Sensor will get very hot during normal operation, please
be careful when handling it.
• The Sensor must be controlled by Spartan 3 While in an active
exhaust stream. Carbon from an active exhaust can easily
build up on an unpowered sensor and foul it.
• Spartan should not be used on public roads.
• Sensor powered before your engine is running will damage
the sensor. Starting the engine can move condensation in
your exhaust system to the sensor. If the sensor is already
heated this can cause thermal shock and the ceramic
internals inside can shatter with rapid temperature changes.
• Leaded fuels expect short Sensor life: 100-500 hrs.
• Spartan 3 Lite should be installed in the driver’s compartment.
✔IMPORTANT: “Spartan, sensor and heater” must be powered only
after engine has started. (The same 12v (+) should be used).
󲠉Oxygen Sensor Exhaust Location Requirements...
(200mm link cable)
• Terminal 1. Fused with “Grey 1A” blade fuse (included).
• Terminal 3. Fused with “Caramel 5A” blade fuse (included).
• Spartan grounds must be connected to 2x different
locations! Heater ground on the engine block.
Spartan to share “ground” with ECU, gauge or inside cabin.
• Terminal 5. Simulated 0-1v Narrowband signal in lieu of
factory O2 sensor. Connect this to factory ECU.
• Terminal 6. Wideband 0v to 5v analog signal output, used to
transmit wideband signal to JRP Gauge Products,
ECU’s & Dataloggers.
Signal specifications + LED information on page 4 above notes.

JRP Edge Digital Gauge - AFR + Spartan 3 Lite Manual Page 3 of 4
Manual - 52mm Edge AFR + Spartan 3 Lite
• To make changes to your new gauge, use the button on the back of the gauge or the remote button included in each kit.
(Both provide the same function). The button can be used to scroll through the menu. Short press will take you through the menu
options, long press on the displayed option will take you into the setup menu for that selection. Make adjustments to that menu
option using short presses, when the setting displays the required value, wait five seconds to return to live data to be
display - Saved. (This will confirm and save your set up option). See page 4 for detailed button operation.
*Note* Day and night time modes can be set to display different settings shown in a table on page 4. You have to enter the night
time mode to make changes to night time menus. (Night mode is triggered from a 12 volt signal input from the yellow power wire).
󰐘Common Button Operation EDGE Gauge
How Does An Oxygen Sensor Work?
Important - How Does An Oxygen Sensor Work? (In Detail)
If given some thought, it’s actually pretty crazy the harsh environment oxygen sensors are required to operate in.
Put simply: Oxygen sensors read oxygen levels in hot gasses traveling through the exhaust system. The sensor will produce an
accurate voltage signal within ‘milliseconds’ then send that information through specialised cables to be interpreted by a “Wide
band controller” or “Electronic control unit (ECU).”
The sensor element tip is made from a special material called Zirconium-Dioxide. When the sensor element reaches a temperature of
400c or more, Oxygen ions (Electrically charged gas particles) are able to dissolve through this Zirconium-Dioxide material.
This unique material reaction also produces a reliable electronic signal which makes it possible to measure if there is a difference in
oxygen concentrations on either side of the element.
To ensure that the sensor reaches this required temperature quickly. A separate ceramic heater is positioned inside the element.
Within 15 seconds the heater can reach temperatures over 600c degrees to ensure that this unique reaction can take place and
produce a reliable signal for the Wide-band or ECU to interpret. (internal temperatures, caution while handling - external
temperatures can still burn cause burns or injury)
WARNING! Oxygen sensors used incorrectly are vulnerable to thermal shock! Thermal shock is highly likely If “liquid” water hits the
sensor while it’s at operational temperature.
“But why would I have water in my exhaust?” Great question! Well that’s actually pretty normal. You see, if a vehicle is
used for more then a few minutes it will come up to normal operating temperature. When it is turned off, fresh air from the
environment will enter the exhaust system. When this “air” is allowed to cool slowly, it will build up water condensation on all surfaces
inside the exhaust system. So the next time you start the vehicle from cold, exhaust gasses will push most of the condensed water
droplets out of the way. Maybe a teaspoon of actual liquid will come out the tail pipe, but most water most will burn off as steam in
the first 2 minutes.
“So why is all this important to know?” To protect the sensor element tip and reduce the likelihood of thermal shock from
water, We need to ensure that the sensor only activates the internal heating element AFTER THE ENGINE HAS STARTED. So, that means
it is essential to wire your Spartan wideband controller so that it only provides direct power to the
oxygen sensor heater: after the engine has started running.
P.S This water vapor that normally accumulates inside all exhaust systems helps explain why old exhausts
rust from the inside out… Hmm, the more you know! 󰗥
Following information is directly credited from “Bosch” (Oxygen Sensor Manufacturer):
“In the warm-up phase at engine start, the sensor is operated with reduced heater power... The heater power must only be
increased when the presence of condensed water in the exhaust gas system can be ruled out. The sensor’s ceramic element is
heated up quickly after heater start-up. Prior to heating the ceramic element, it must be guaranteed that there is no condensed
water present. This could damage the hot ceramic element. Never switch on sensor heating or the control unit before engine start.
The sensor installation location design must be selected in a way to minimize, or eliminate, condensed water on the exhaust gas side
from contacting the sensor. If this is not possible by design measures, the start of the sensor heater must be delayed until
demonstrably no more condensation water appears.”
󰂹Gauge Mode Configuration
There are 3x different display modes available for the 52mm AFR/ Lambda Edge series gauges
• AF1 - Petrol 10-20AFR: This display mode will show AFR display range appropriate for a petrol powered vehicle. The
numeric readout in the centre of the gauge displays AFR values to one decimal place, the
outside scale type readout as AFR.
• AF2 - Lambda 0.68-1.36: This display mode will show Lambda display range appropriate for most fuel types. The numeric
(Non-Diesel) readout in the centre of the gauge displays Lambda values to two decimal places, the
outside scale numbers are disabled, however the outer scale sweep still shows.
• AF3 - Diesel Only 10-40AFR: This display mode will show AFR display range appropriate for a Diesel powered vehicles while
under load/ in the power band. AFR’s above 40AFR to be expected during cruise conditions.
The numeric readout in the centre of the gauge displays AFR values to one decimal place,
the outside scale number are disabled, however the outer scale sweep still shows.

JRP Edge Digital Gauge - AFR + Spartan 3 Lite Manual Page 4 of 4
Manual - 52mm Edge AFR + Spartan 3 Lite
󰐘Detailed Button Operation
Long Press
"Symbols blinking"
Short Press Long Press Short Press
Day Mode
Short Press
Night Mode
Wait 5 sec to save
Short Press Long Press Short Press
Day Mode
Short Press
Night Mode
Wait 5 sec to save
Short Press Long Press Short Press
Types
Wait 5 sec to save
AC1►AC2►AC3
Wait 5 sec to save
SCREEN
BRIGHTNESS
There are different brightness settings
available to match other instruments in your
vehicle. Night and day mode can be set to
different levels for each mode.
AF1►AF2►
►AF3►
/
There are 3 different indicator display types.
It's best to view these options when the
vehicle is running.
SCALE INDICATOR
so1►so2►so3
br0►br1►br2
br3►br4►br5
GAUGE MODE
CONFIGURATION
COLOUR
SELECTION
OPEN/ CLOSE
CEREMONIES
There are two modes for all gauges, night
and day mode. Different colours can be set
for each mode: Red, Green, Blue, Yellow,
Purple, Snow, Mustard,
Pink, Light Blue, Orange, Teal, Off, (RGB).
There are 3 options for the opening
ceremony, wait for change to be saved and
view while turning gauge on/ off.
See gauge mode configuration for in-depth
explanation on page 3. Hint: as you change
each AF# value, the outer scale will show
display style.
SHORT PRESS
SHORT PRESS
SHORT PRESS
LONG PRESS
SHORT PRESS
LONG PRESS
LONG PRESS
LONG PRESS
SHORT PRESS
LONG PRESS
SHORT PRESS
SHORT PRESS
SHORT PRESS
SHORT PRESS
SHORT PRESS
• The table below shows what to expect when navigating your 52mm Edge series Air Fuel Ratio gauge, this is more or less an on the
fly cheat sheet to assist you during setup. Best way to understand all the features and functions is to read this whole instruction
manual carefully.
• For further assistance/ trouble shooting please visit our YouTube channel:
• Visit our social platforms for new ideas, and to see our latest products:
Alternatively send us a cheeky Dm, were here to help! 󲠖CLICK ICONS TO FOLLOW LINKS
• 14point7 warrants Spartan 3 Lite to be free from defects for 2 years, JRP warrants 52mm Gauge for 12 months, sensors are
consumable, and may not be warranted after use. Record the date of purchase here for warranty purposes ____________.
Notes:_______________________________________________________________________________
To change the Wideband display configuration of the JRP 52mm AFR gauge you will need to enter the top configuration menu. To do
this, simply press and hold the button on the back of the gauge or the remote button while live data is displayed. After 5 Seconds you
should hear an audible “Beep.” Then with a short press you will navigate through the three “AF” options displayed above. Once
you’ve selected the wideband Air Fuel mode required for your application, wait for live data to return to the display. Your settings will
now be saved.
**Note to use the Diesel readout on these gauges, you must be using a wideband controller that has had the “0-5v analog out” Pro-
grammed to scale 10 - 40 AFR, example the “Spartan 3D.”
*CAUTION* When ordering a replacement Wideband O2 Sensor: Its important to order the same type as the original. Spartan 3D/ lite
are pre-configured to operate with the sensor type they’re supplied with: Eg. Spartan 3D/ Lite supplied with a Bosch is not compatible
with an ADV replacement sensor. A Spartan supplied with an ADV type is not compatible with a Bosch replacement.
󰂹Gauge Mode Configuration (Continued)...
Terminal 5 (Simulated Narrow band signal): Factory default is simulated narrowband output with a switch point of 1[Lambda].
Output is an RC filtered 8 bit PWM signal.
Terminal 6 (Wideband signal) The Spartan 3 Lite has a “0v to 5v” analog output signal, 0[v] @ 0.68 [Lambda] Linear to 5[v] @ 1.36
[Lambda], which equates to 10 to 20 AFR. Output is a 12 Bit DAC with a 0.1% voltage reference. If this terminal is to be shared
between a gauge and ecu / datalogger ensure same gauge wire is used, and wire length as short as possible to avoid
signal degradation.
Spartan Signal Output Information
Spartan LED: Red slow flash, sensor too cold. Red solid light, Ok. Red fast flash, too hot. Note: If LED is green the device is attempting to
enter the boot loader mode, you need to check your wiring. This is only possible when Spartan is wired incorrectly. Get help from JRP?