Source Audio Mercury Flanger User manual

SA240 Mercury Flanger User’s Guide 1
Mercury Flanger User’s Guide
Welcome
Thank you for purchasing the Mercury Flanger. This powerful stereo effects pedal features a
collection of meticulously crafted flanger sounds ranging from classic two-voice sounds inspired by
60s studio tape flangers to the swooshing jet engine sounds of the 70s and 80s and beyond. With a
simple control set, the Mercury can work in a wide variety of musical settings, and the powerful MIDI
and Neuro control options under the hood provide access to a vast array of additional tonal
possibilities.

SA240 Mercury Flanger User’s Guide 2
The Mercury is housed in a durable, lightweight aluminum housing, packing rack mount power and
flexibility into a compact, easy-to-use stompbox.
The USB and Neuro ports transform the Mercury from a simple flanger pedal into a powerful multi-
effects unit. Using the free Neuro App (iOS / Android) or USB editor software (Mac / Windows), a
wide range of additional control parameters and effect types (chorus, phaser, resonator) are
accessible. When used together with the Neuro Hub, the Mercury is fully MIDI-controllable and 128
multi-pedal presets, or “scenes,” can be saved for instant recall on the stage or in the studio. The
Mercury can also connect directly to a passive expression pedal or the Hot Hand for expressive
control of any parameter.
The Quick Start guide will help you with the basics. For more in-depth information about the Mercury
Flanger, move on to the following sections, starting with Connections.
Enjoy!
-The Source Audio Team
Overview
Diverse Flanger Sounds –Choose from traditional flanger tones such as Classic, Thru-Zero, and
Shadow, or delve deeper into unique sounds cooked up in the Source Audio lab.
Flexible Stereo Routing –The Mercury is equally at home in a mono rig or a stereo rig. A variety of
routing modes such as True Stereo, Mono, Mono-to-Stereo, Sum-to-Mono and External Loop allow
the Mercury to harness the true power of stereo signal chains.
Compact Design –The durable, anodized aluminum housing has a slim profile, a small footprint, and
sturdy hardware that will withstand the rigors of the road.
Universal BypassTM –True bypass or buffered bypass? The choice is yours. The Mercury features
high-quality signal relays for true bypass and transparent buffers for analog bypass.
Preset Saving –Save your favorite sound by pressing and holding the footswitch. No need to
remember knob positions in the middle of a show.
Neuro Technology –The Neuro App opens up new possibilities for the Mercury, including completely
new effect types, additional control parameters, and access to the Neuro Community, including free
presets from artists and other users. The Neuro Hub can store up to 128 presets for the Mercury,
easily recalled with a MIDI controller. You can also download any effects for the Gemini Chorus or
Lunar Phaser and use them on the Mercury Flanger.
Deep Control Set –Beyond the four knobs on the face of the Mercury are many additional
parameters. The Neuro App and USB Editor provide access to the inner workings of the flanger effect
for advanced users who want to create a unique signature sound.
Parametric EQ and Low Cut –A 4-band parametric EQ is included in the Mercury, allowing for fine
tonal control, and a low cut filter tightens up the low end.

SA240 Mercury Flanger User’s Guide 3
MIDI Control –All of the Mercury’s parameters can be accessed and controlled using MIDI via the
Neuro Hub or USB. Class compliant USB-MIDI allows the Mercury to work as a plug-and-play device
with recording software running on Mac and Windows, and the MIDI Learn feature makes control
mapping simple. The Mercury can also sync to your DAW or other MIDI devices using MIDI clock.
Quick Start
Power
To power the unit, connect the included 9V DC power supply to the jack labeled DC 9V on the back
panel.
Warning: Using a non-Source Audio supply, especially an unregulated supply, could damage the unit.
Please be very cautious when using 3rd-party power supplies.
Guitar/Audio Connections
Using standard ¼” mono cables, connect your guitar, bass, or other instrument to the INPUT 1 jack
and your amp (or the next audio device in the signal chain) to the OUTPUT 1 jack.
When the power and audio connections have been made, the Mercury is ready to play.
Brief Knob, Footswitch, and Button Descriptions
Depth Knob: Controls the depth of the Low Frequency Oscillator (LFO), which determines the
strength or prominence of the flanger effect.

SA240 Mercury Flanger User’s Guide 4
Speed Knob: Controls the frequency of the LFO, which determines the speed of the flanger effect.
Resonance Knob: Controls the resonance of the effect by feeding the output back into the input –
higher resonance could be described as “intense,” “brighter” or “chime-like.”
Delay Knob: Controls the delay time for the delayed signal in the effect –experiment with the delay
knob for different effect characteristics.
Effect Switch: Selects between the three basic flanger effect types –Classic, Thru-Zero, and Shadow.
Footswitch: Enables or bypasses the flanger effect. The large LED will be lit green when the flanger
effect is engaged.
Contents
Welcome.................................................................................................................................................. 1
Overview.................................................................................................................................................. 2
Quick Start ............................................................................................................................................... 3
Connections ............................................................................................................................................. 5
Basic Flanger Operation........................................................................................................................... 9
Effect Types............................................................................................................................................12
Controls.................................................................................................................................................. 13
Preset Storage and Recall ......................................................................................................................15
Universal Bypass TM ................................................................................................................................ 15
Stereo Routing .......................................................................................................................................16
Parametric EQ........................................................................................................................................16
External Control.....................................................................................................................................18
Specifications.........................................................................................................................................26
Troubleshooting..................................................................................................................................... 26
Frequently Asked Questions.................................................................................................................. 27
Rubber Feet ...........................................................................................................................................29
Waste Disposal Notes ............................................................................................................................ 29
Warranty................................................................................................................................................ 30
Version History ......................................................................................................................................31

SA240 Mercury Flanger User’s Guide 5
Connections
Input Side Connections
Input 1
This is the primary input for guitar, bass, or other instruments. It can also accept line-level inputs.
Connect it to your instrument or other audio source using a mono (TS) ¼” cable.
Input 2
Input 2 can act either as an audio input or as the data connection for the Neuro App, or both at the
same time.
Input 2 as an Audio Input
The tip contact on Input 2 acts as a secondary input for guitar, bass, or other instruments. It is only
active when the Mercury is configured with a signal routing that uses stereo inputs. Connect it to
your instrument (or the previous effect in the signal chain) using a mono (TS) ¼” cable. By default,
the Mercury is a true stereo effect. Other routing options are available using the Neuro App or USB
Editor software. For more information about stereo routing, refer to the Stereo Routing section.
Input 2 as a Neuro App Data Input
The ring contact on Input 2 acts as a data connection for the Neuro App. Connect it to your mobile
device using a stereo (TRS) ¼” cable. It can also accept daisy-chained Neuro data from another
Neuro-compatible pedal in the chain, provided that a TRS cable is used. The audio signal (if
applicable) will be on the tip contact of the plug, and the Neuro App data will be on the ring contact.

SA240 Mercury Flanger User’s Guide 6
Output Side Connections
Output 1
This is the primary output. Connect it to your amplifier, recording interface, or the next device in
your effects signal chain using a mono (TS) ¼” cable.
Output 2
Output 2 can act either as an audio output or as the daisy-chain data connection for the Neuro App,
or both.
Output 2 as an Audio Output
The tip contact on Output 2 acts as the secondary audio output. It carries an audio signal when the
Mercury is configured with a signal routing that uses stereo outputs. Connect it to your amplifier,
recording interface, or the next device in your effects signal chain using a mono (TS) ¼” cable.
Output 2 as a Neuro App Data Daisy-Chain Output
The ring contact on Output 2 acts as a data connection for the Neuro App, passing data from the
Mercury to the next Source Audio effect in your signal chain. You can daisy-chain the Neuro App data
regardless of whether Output 2 is configured to output audio or not. Connect Output 2 to the next
device’s Neuro App Data input (usually Input 2) using a stereo (TRS) ¼” cable. The audio signal (if
applicable) will be on the tip contact of the plug, and the Neuro App data will be on the ring contact.

SA240 Mercury Flanger User’s Guide 7
Example Neuro Daisy-Chain Connections
Mono Audio Path with Neuro Daisy-Chain
In the case of a purely mono audio signal path, the Neuro data can be input to the first effect directly
from the mobile device and then carried on to the second effect via TRS cable.
Mono-To-Stereo Audio Path with Neuro Daisy-Chain
In the case of a signal path that splits a mono input to stereo outputs, the Neuro data can be input to
the first effect directly from the mobile device and then carried on to the second effect via TRS cable.
The audio signal is carried on the same cable.
Guitar In
Neuro In
Out to Amp
Neuro
Daisy-Chain
Guitar In
Neuro In
Out to Amp (Left)
Audio (Right)
and
Neuro Daisy-Chain
Out to Amp (Right)
Audio (Left)

SA240 Mercury Flanger User’s Guide 8
Power and Control Connections
DC 9V (Power)
Connect to the included 9 Volt DC power supply. The power supply must be regulated at 9 Volts
(direct current), able to source at least 180 mA (milliamps) of current, and the plug should have a tip-
negative, sleeve-positive polarity (the center tip is ground and the sleeve is power).
USB
Connect to your computer (Mac or Windows) to the Mercury’s USB port (denoted by the icon)
using a standard mini USB cable. The Mercury is a class compliant USB device, meaning that it should
be recognized by Mac and Windows computers automatically. For more information about the
Mercury’s USB capabilities, refer to the USB section of the User’s Guide.
Control Input
The 3.5 mm Control Input port connects to external control devices such as the Dual Expression
Pedal, Reflex Universal Expression Pedal, Neuro Hub, and Hot Hand Motion Controller. For more
information, refer to the Expression Pedal Input, Hot Hand Input, and Neuro Hub sections of the
User’s Guide.

SA240 Mercury Flanger User’s Guide 9
Basic Flanger Operation
Flanging is a delay effect that has been used in recording studios since the late 1960s. The original
effect relied on using two tape machines playing the same tape simultaneously, with their outputs
combined.
By touching the flange of one of the tape players, the corresponding reel will slow by a small amount,
introducing a delay into the signal. The flange is then released, and the tape returns to its original
speed. The flange for the other tape player is then touched, causing it to slow down slightly, and the
process is repeated. This creates a slowly modulating difference in timing between the two tape
players, typically only a few milliseconds at most. The resulting effect can be described as a “whoosh”
sound that is similar to the sound of a jet plane passing by in the sky. In fact, the comparison is very
accurate –a passing jet sounds the way it does because the sound waves arriving directly at your
ears and the reflected waves bouncing off the ground are delayed slightly from each other, and this
delay time changes as the jet changes its position relative to you.
In technical terms, a flanger sweeps uniformly spaced notch filters through the frequency spectrum
of an input signal.
Over the years, as technology has permitted, methods for producing flanger effects have become
possible without the need for big, bulky tape players. The Mercury packs all of the power of a
traditional tape flanger into a compact package, and brings some new technology to the table as
well.
The amount of delay in the flanger effect needs to be changed over time to sweep the notches across
the spectrum. In order to do this, a low frequency oscillator (also known as an LFO) is used to control
the delay time, as well as several other parameters. This is illustrated by the following graph:
The blue line in the graph is known as the LFO. It changes the amount of delay over time.
The frequency (a.k.a. “rate” or “speed”) of the LFO can be increased to get a more rapid change in
the delay time, as shown in this graph:
DELAY TIME
TIME

SA240 Mercury Flanger User’s Guide 10
If the speed is set to a high enough rate, the effect will resemble the Doppler shift common in
“Leslie” rotating speaker effects.
The depth of the LFO can also be changed to make the flanger effect more or less prominent, as
shown in this graph:
DELAY TIME
TIME
DELAY TIME
TIME

SA240 Mercury Flanger User’s Guide 11
Finally, the shape of the LFO can be changed to give the flanger effect a different character.
Sine wave:
Falling Sawtooth wave:
Square wave:
OUTPUT GAIN
TIME
OUTPUT GAIN
TIME
OUTPUT GAIN
TIME

SA240 Mercury Flanger User’s Guide 12
By default, the Mercury uses a sine wave for its LFO, but other wave shapes can be selected using the
Neuro App or USB Editor Software.
Effect Types
The Mercury includes three basic effect types, with more effects available in the USB editor software
or the Neuro mobile app.
Classic
The Classic Flanger effect combines the original dry input signal with a single modulating clone signal,
creating the simple sound of two voices in unison. It is very similar to the classic chorus effect except
that the delay time is relatively long in a chorus effect and relatively short in a flanger effect.
Thru-Zero
The Thru-Zero Flanger effect tries to recreate the original tape flange effect in which the two tape
machines would alternately be slowed down and sped up so that their signals would pass in front of
and behind each other. Obviously, this is a difficult feat to pull off during a live performance (without
the assistance of a time machine). The Mercury achieves this effect with two delay lines, one of
which is very short, but stationary, which functions as the dry signal - the other signal modulates. As
the modulating signal passes through and moves ahead of the stationary tap, we hear the classic
through zero twist (a split second of complete phase cancellation) as the frequency response inverts.
Shadow
The Shadow Flanger effect features two modulating signals. This setup generates a more animated
flanging effect, with the primarily flange closely shadowed by a subtle, more resonant reflection.
Additional Effect Types
Additional effect types can be loaded into the Mercury using the Neuro App on your mobile device
(iOS / Android) or the built-in USB port (Mac / Windows).
The Mercury Flanger is compatible with Source Audio’s Phaser and Chorus effects, so it is possible to
load chorus, phaser, and flanger effects on the Mercury at the same time.

SA240 Mercury Flanger User’s Guide 13
Controls
Knobs
Depth Knob
Controls the depth of the LFO, which determines how prominent the flanger effect is. When the
depth is set fully counter-clockwise, the flanger effect will be most subtle. When the depth is set fully
clockwise, the flanger effect will be most prominent.
Depth Knob
Effect Switch
Resonance
Knob
Speed Knob
Delay Knob
Engage/Bypass
LED
Engage/Bypass
Footswitch
Control LED Control Input Button
DELAY TIME
TIME
DELAY TIME
TIME
Low Depth High Depth

SA240 Mercury Flanger User’s Guide 14
Speed Knob
Controls the frequency of the LFO, which determines how fast the flanger effect is. The minimum
setting is 1 Hz (one LFO cycle per second) and the maximum setting is 10 Hz (ten LFO cycles per
second).
Resonance Knob
Sets the resonance of the peak/notch filters in the flanger effect. Subjectively, a higher resonance
will result in a more metallic, bell-like or chime-like sound, whereas a lower resonance will sound
more subdued.
Delay Knob
Sets the base delay time for the flanger effect. Lower delay times typically create a more pronounced
“whoosh” sound that is closer to the classic tape flanger sound, whereas longer delay times result in
a less pronounced flanger effect that can start to resemble a chorus effect.
Effect Switch
Selects between the three basic flanger effect types –Classic, Thru-Zero, or Shadow. These effects
are described in further detail in the Effect Types section.
LEDs
Engage / Bypass LED
The Engage / Bypass LED above the footswitch indicates if the flanger effect is active (lit green) or
bypassed (not lit).
When the user preset mode is enabled, the LED will turn red. See the Preset Storage and Recall
section for more information about user presets.
External Control LED
The small LED located between the Depth and Speed knobs is the External Control LED. When lit, it
indicates that external control mode (expression, hot hand, or MIDI) is active. For more information,
see the External Control section.
Footswitch
Enables or bypasses the flanger effect.
DELAY TIME
TIME
DELAY TIME
TIME
Low Speed High Speed

SA240 Mercury Flanger User’s Guide 15
Control Input Button
This small button is used when configuring external control. See the External Control section for
more details.
Preset Storage and Recall
The Mercury features a user preset that can be easily saved and recalled using the footswitch. When
a preset is recalled, all of the parameters instantly jump to their saved value, regardless of the
position of the knobs. This allows you to save your favorite sound without having to worry about the
knob positions.
Saving Your First Preset
Bypass the Mercury by clicking the footswitch once. The engage/bypass LED should be dark at
this time.
Press and hold the footswitch for 5 seconds and wait for the engage/bypass LED to turn red.
You are now in preset mode.
Set up the effect how you want it to sound, including the effect switch, depth, speed,
resonance, and delay knobs. Once you have made a change, the engage/bypass LED will begin
to blink.
To save your preset, hold the footswitch until the LED blinks rapidly 3 times.
Now you can engage and bypass the Mercury using the footswitch, and each time you engage
the effect, your saved preset will be recalled.
Editing a Preset
Activate your preset (the engage/bypass LED will be solid red).
Change any parameter you wish (effect switch, depth, speed, shape, and level knobs). Once you
have made a change, the engage/bypass LED will begin to blink.
When you are ready to save, press and hold the footswitch for a few seconds. The LED will blink
three times to show that the preset was saved.
Exiting Preset Mode
When Preset Mode is active, bypass the effect using the engage/bypass footswitch. The
engage/bypass LED should be dark at this time.
Press and hold the footswitch for 5 seconds and wait for the engage/bypass LED to turn off. You
have now exited Preset Mode.
Universal Bypass TM
Most effect pedals offer either true bypass or buffered bypass. The Mercury contains two separate
circuits for bypass mode, allowing you to choose the method you prefer. The true bypass path uses
signal relays, which are electromechanical switches. This provides an ultra-low resistance path from
the input jacks to the output jacks, which is effectively the same as a wire. The buffered bypass path
uses extremely low noise buffers, which provide a very low output impedance and are effective for
driving long cables or long chains of effects following the Mercury’s audio output.

SA240 Mercury Flanger User’s Guide 16
Out of the box, the Mercury operates in true bypass mode. In order to switch to buffered bypass
mode, edit the Mercury’s global settings using the USB editor software or the Neuro App.
We recommend you choose between the active analog bypass (a.k.a. buffered bypass) and relay-
based true bypass based on what is needed in your signal chain. Ideally, the first pedal in a signal
chain is a buffered input followed by true bypass in the rest of the signal chain.
Both bypass methods have pros and cons associated with them. Buffered bypass provides consistent
input impedance so that if the source is susceptible to variations in input impedance (similar to a
guitar pickup), there won’t be a noticeable change in tone. True bypass has the benefit of providing a
dedicated hardwired bypass signal path. The Mercury features small-signal relays for true bypass
switching that offer reduced pops and clicks compared to the traditional true bypass switching
method using a mechanical switch.
Stereo Routing
The Mercury works great as a mono flanger effect, but its stereo inputs and outputs also make it a
true stereo effect as well as a flexible signal router. It can act as a stereo splitter, merger, or true
stereo effect, and it can also be set up in a number of other unique signal routing modes. By default,
the Mercury works in true stereo mode (input 1 goes to output 1, and input 2 goes to output 2). To
configure a different stereo routing mode, use the USB editor software or the Neuro App.
A few different routing options are displayed below. The right side of each diagram shows inputs 1
and 2, the left side shows outputs 1 and 2, and flanger effects A and B are in the center.
Many more routing options are possible. Check the USB Editor or Neuro App for more details.
Parametric EQ
The Mercury features a built-in 4 band parametric EQ that can be configured using the Neuro App or
the USB Editor. Different EQ settings can be saved for each of the three effect types, as well as for
the user preset.
A
B
1
2
1
2
True Stereo
Mono In, Stereo Effect
A
B
1
2
1
Stereo In, Mono Effect
A11
2
Mono Effect, Dry Thru
A1
2
1
Mono Effect, Double Output
A1
2
1

SA240 Mercury Flanger User’s Guide 17
The EQ consists of four independently configurable bands:
Band 1: Low Shelf
Band 2: Peaking (a.k.a. Bell / Band)
Band 3: Peaking (a.k.a. Bell / Band)
Band 4: High Shelf
Each band has configurable frequency, boost/cut, and Q (bandwidth).
A simple example of these four bands in action is shown in the graph below. In this example, Band 1
is a low shelf filter at 100 Hz with a 6 dB cut, Band 2 is a peaking filter at 620 Hz with a 3 dB cut and
relatively high Q, Band 3 is a peaking filter at 3 kHz with a 1.5 dB boost and relatively low Q, and Band
4 is a high shelf filter at 10 kHz with a 2.5 dB cut.
Using the Neuro App or USB Editor, Band 1 (Low Shelf) can optionally be configured as a high pass
filter, and Band 2 (High Shelf) can optionally be configured as a low pass filter.
50 100 200 300 500 1.0k 2.0k 3.0k 5.0k 10.0k 20.0k
-6
0
+6
1234
Parametric Equalizer

SA240 Mercury Flanger User’s Guide 18
Low Cut Filter
The Mercury also includes a low cut filter (a.k.a. high pass filter) with an adjustable frequency. This
filter is very useful for cutting out low frequencies that do not contribute to the sound of the
instrument, as well as subsonic frequencies which cannot be heard at all. Bass players often use low
cut filters set very low (around 10 Hz to 30 Hz) to reduce speaker excursion and improve the clarity of
the bass. Guitarists often use low cut filters set somewhat higher (around 80 Hz) in order to give the
bass player additional room in the low end of the mix.
The Parametric EQ and the Low Cut filter are configurable using the Neuro Hub or USB Editor
software. By default, the parametric EQ is disabled (flat), and the Low Cut filter is set to 10 Hz.
External Control
The Control Input port opens up a wide array of external control options, allowing for direct control
over many of the Mercury’s built-in parameters. It can be used as an expression input or as a data
port for the Neuro Hub.
Expression Control
The Mercury’s effects parameters can be controlled directly by an expression pedal or Hot Hand
connected to the Control Input port.
Expression Pedal Input
The Dual Expression Pedal or Reflex Universal Expression Pedal, both from Source Audio, can be
directly connected to the Control Input using a 3.5 mm, TRRS cable.
50 100 200 300 500 1.0k 2.0k 3.0k 5.0k 10.0k 20.0k
-6
0
+6
Configurable Low Cut Filter

SA240 Mercury Flanger User’s Guide 19
In the case of an expression pedal with a TRRS plug, like Source Audio’s expression pedals, the tip
connection is power, the first ring is the X axis expression signal, the second ring is the Y axis
expression signal, and the sleeve connection is ground.
Third party expression pedals can be used as well, as long as they have a TRS (Tip Ring Sleeve) plug
with power on the tip, expression (the wiper of the potentiometer) on the ring, and ground on the
sleeve, as seen in the diagram below.
Expression pedals with TS (Tip Sleeve) plugs will not work correctly with the Mercury.
The resistance of the expression pedal does not matter. The Mercury will automatically adjust itself
to the range of the expression pedal when it is configured.
Most expression pedals use a ¼” plug, but the Mercury’s control port is 3.5 mm. To make the
connection, a simple TRS plug converter (1/4” to 3.5 mm) can be used.
Note that although the Control Port expects a 4-contact TRRS plug, most 3rd party expression pedals
use a 3-contact TRS plug. This is OK –using a simple 3-contact TRS plug converter, the expression
pedal’s output will be connected to the Mercury’s X expression input.
Configuring the Expression Pedal
It is easier than ever to set up expression control using the Mercury’s new calibration and mapping
method. When the expression pedal is connected to the Mercury, follow these simple steps to
calibrate it and map it to control different effect parameters.
1. Press the Control Input button to turn on Control Input mode. The Control LED should be lit
green.
2. Press and hold the Control Input button until the Control LED begins to blink slowly
(approximately one blink per second).
Ground Power
Y Exp X Exp
Ground Power
Expression

SA240 Mercury Flanger User’s Guide 20
3. Move the expression pedal over the range of motion you would like to use to control the
Mercury. If you would like to use the expression pedal’s full range of motion, then make
sure to move the pedal all the way from its minimum position to its maximum position.
Note that you can create “dead zones,” if desired, by only moving the expression pedal over
a limited region of its full range of motion.
4. After setting the expression pedal range, click the Mercury’s footswitch once. The
calibration is now complete, and the Control LED will blink faster (about 2 blinks per
second). Now, it is time to map the expression pedal to the effect parameters.
5. Move the knob(s) you wish to control with the expression pedal to the minimum desired
position, then click the Mercury’s footswitch. The Control LED will now blink even faster
(about 4 blinks per second). Note that you may control one or more knobs with the
expression pedal, up to four total knobs.
6. Move the knob(s) you wish to control with the expression pedal to their maximum desired
position, then click the footswitch. The Control LED will now be lit solid green. Note that you
may control one or more knobs with the expression pedal, up to four total knobs.
7. After setting the minimum and maximum knob positions, the parameter mapping is
complete.
Note: The parameter range can be inverted by swapping the minimum and maximum position of the
knobs during calibration.
Hot Hand Input
The Hot Hand 3 Wireless Effects Controller can be connected directly to the Mercury’s Control Input
for motion control of the Mercury’s effects parameters. The Hot Hand has two axes of expression: X
and Y. These signal are carried on the two rings of the TRRS cable that comes from the Hot Hand
receiver.
Configuring the Hot Hand
When the Hot Hand is connected to the Mercury, follow these simple steps to calibrate it and map it
to control different effect parameters.
1. Press the Control Input button to turn on Control Input mode. The Control LED should be lit
green.
2. Press and hold the Control Input button until the Control LED begins to blink slowly
(approximately one blink per second).
3. Move the Hot Hand ring over the range of motion you would like to use to control the
Mercury. The easiest way to do this is to move the ring in the same way that you intend to
Ground Power
Y Exp X Exp