ARC FLEX EPV User manual

FLEXEPV
Instruction Manual

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 1 of 71
Service Information
Your New Radio Remote Control System
Thank you for your purchase of ARC Flex EPV radio remote control system. Without a doubt, our
Flex EPV system is the ultimate solution for providing precise, undeterred, and safe control of your
material.
If your product ever needs modification or service, please contact our representative in your country
or at the following location:
World Headquarter:
Advanced Radiotech Corporation
No.3, South 1st Road, Chien Chen District
Kaohsiung, Taiwan
Telephone:
[phone]
Fax Number:
[phone]
Website:
www.advanced-radiotech.com
E-mails:
[email protected]
[e-mail]
All rights reserved. This notice applies to all copyrighted materials included with this product, including,
but not limited to, this manual and software embodied within the product. This manual is intended for
the sole use of the person(s) to whom it was provided, and any unauthorized distribution of the
manual or dispersal of its contents is strictly forbidden. This manual may not be reproduced in whole
or in part by any means whatsoever without the expressed written permission of ARC.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 2 of 71
PRODUCT MANUAL SAFETY INFORMATION
Advanced Radiotech Corporation (ARC) offers a broad range of radio remote control product for
material handling applications. This manual has been prepared by ARC to provide information and
recommendations for the installation, use, operation and service of ARC’s material handling products
and systems (ARC Products). Anyone who uses, operates, maintains, services, installs or owns ARC
Products should know, understand, and follow the instructions and safety recommendations in this
manual for ARC Products.
The recommendations in this manual do not take precedence over any of the following requirements
relating to cranes, hoists lifting devices or other material handling equipment which use or include
ARC Products:
 Instructions, manuals, and safety warnings of the manufacturers of the equipment where the
radio system is used.
 Plant safety rules and procedures of the employers and the owners of facilities where the
ARC Products are being used.
 Safety standards and practices for the industries in which ARC Products are used.
This manual does not include or address the specific instructions and safety warnings of these
manufacturers or any of the other requirements listed above. It is the responsibility of the owners,
users and operators of the ARC Products to know, understand and follow all of these requirements. It
is the responsibility of the employer to make its employees aware of all of the above listed
requirements and to make certain that all operators are properly trained. No one should use ARC
Products prior to becoming familiar with and being trained in these requirements and the
instructions and safety recommendations in this manual.
WARRANTY INFORMATION
For information on ARC’s product warranties, please contact ARC representative nearest to you or
visit www.advanced-radiotech.com.
FCC WARNINGS and CAUTIONS
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference; and
(2) this device must accept any interference received, including interference that may cause
undesired operation.
(b) For a Class B digital device or peripheral, the instructions furnished the user shall include the
following or similar statement, placed in a prominent location in the text of the manual:
 This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 3 of 71
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
 Any changes or modifications not expressly approved by the party responsible for compliance
could void the authority to operate equipment.
 This device and its antenna must not be co-located or operating in conjunction with any other
antenna or transmitter.
 End-users and installers must be provided with antenna installation instructions and transmitter
operating conditions for satisfying RF exposure compliance.
FCC MPE ：This equipment complies with FCC RF radiation exposure limits set forth for an
uncontrolled environment for body-worn configuration in direct contact to the phantom.
IC WARNINGS
RSS-Gen Issue 4 8.4
According to RSS-Gen Issue 4 section 8.4, User manuals for licence-exempt radio apparatus shall
contain the following text, or an equivalent notice that shall be displayed in a conspicuous location,
either in the user manual or on the device, or both:
(English)
This device complies with Industry Canada's licence-exempt RSSs. Operation is subject to the
following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired
operation of the device.
(French)
Le présent appareil est conforme aux CNR d'Industrie Canada applicables auxappareils radio
exempts de licence.L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage adioélectrique subi, même si le
brouillage est susceptible d'en compromettre le fonctionnement.
Industry Canada ICES-003 Compliance Label:
CAN ICES-3 (B)/NMB-3(B)
IC MPE: This equipment complies with ISED radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.
Cet équipement est conforme aux limites d'exposition au rayonnement ISED établies pour un
environnement non contrôlé. Cet équipement doit être installé et utilisé à une distance minimale de
20 cm entre le radiateur et votre corps

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 4 of 71
Table of Contents
Page
1. Introduction 5
2. Radio Controlled Safety 6
3. General System Information
3.1 Transmitter
3.1.1 8EPV External Illustration 11
3.1.2 12EPV External Illustration 12
3.1.3 8EPV Internal Illustration 13
3.1.4 12EPV Internal Illustration 14
3.2 Receiver
3.2.1 8EPV and 12EPV External Illustration 15
3.2.2 8EPV and 12EPV Internal Illustration 16
4. Function Settings
4.1 Transmitter
4.1.1 Transmitter Firmware Version 18
4.1.2 Transmitter Channel Settings 18
4.1.3 Remote Pairing 20
4.1.4 Transmitter Start Function Settings 21
4.1.5 Transmitter Inactivity Timer Settings 21
4.1.6 Transmitter Output Power Settings 21
4.1.7 Infrared Programming 22
4.1.8 Pushbutton Function Settings 23
4.1.9 Transmitter Access Card (TAC) Settings 28
4.1.10 Display Frequency Band 29
4.1.11 Input and Output Feedback Settings 29
4.1.12 Infrared Function Settings 29
4.1.13 Zero-G Sensor Settings 29
4.2 Receiver
4.2.1 Receiver Channel Settings 30
4.2.2 Output Settings 24
4.2.3 Jumper Functions 37
4.2.4 Function Relay Outputs 38
4.2.5 Brake Functions 38
4.2.6 Programming 39
4.2.7 Voltage Settings 54
4.2.8 Indicator Light and Buzzer Installation 54
4.2.9 System Channels Table (433~439MHz) 55
4.2.10 System Channels Table (863~869MHz) 56
4.2.11 System Channels Table (921~927MHz) 57
5. Receiver Installation
5.1 Wiring Diagram 58
5.2 Pre-installation Precautions 59
5.3 Step-By-Step Installation 59
6. Operating Procedures
6.1 General Operation 61
6.2 Master/Master Tandem Operation (Tandem models) 62
6.3 Master/Slave Tandem Operation (Tandem models) 63
6.4 A/B Pushbutton Select Operation 65
6.5 A/B Rotary Select Operation (AB models) 65
6.6 Pitch & Catch Operation 65
6.7 Transmitter Access Card (TAC) Operation 65
6.8 Changing Batteries 66
6.9 Battery Charging 66
6.10 System Status Indications 67
7. General Specifications 70
8. EU Declaration of Conformity 71

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 5 of 71
1. Introduction
The Flex EPV radio remote control systems are designed for control of industrial equipment
and machinery such as overhead traveling cranes, jib cranes, gantry cranes, tower cranes,
electric hoists, winches, monorails, conveyor belts, mining equipment, and all other material
handling equipment where wireless control is preferred.
Each Flex EPV system consists of a transmitter handset and a receiver unit. Other standard-
equipped accessories include transmitter waist belt, vinyl pouch, pushbutton labels, LED labels,
output cable and instruction manual CD.
List of notable features include:
* Advanced Controls – the system utilizes dual advanced microprocessor controls with
32bit CRC and Hamming Code, providing ultra fast, safe, precise, and error-free encoding
and decoding.
* Frequency Hopping RF Transceiver – the system automatically search-and-lock onto a
free and uninterrupted channel at every system startup or during operation when
encountering radio interference. The system is also capable of two-way communication
between the transmitter and receiver and as well as receiver to receiver with system status
and relay output feedbacks.
* Programmable Transmitter Access Card (TAC) – the optional transmitter access card
feature (TAC) further guard against any unauthorized personnel from operating the
transmitter. The TAC can also be individually programmed unlocking any specific function
or functions on the transmitter allowing a more experienced or qualified user to operate.
* Zero-G Sensor Imbedded – the transmitter is embedded with a Zero-G sensor to guard
against any unintended control of the crane or equipment when transmitter is thrown or
dropped.
* Wireless Remote Pairing Function – system information can be transferred wirelessly
between two transmitters or between a transmitter and a receiver without the hassle of
resetting the spares.
* Reliable Pushbuttons – the inductive-type step/stepless pushbuttons are rated for more
than five million press cycles. The defined snap-action steps provide positive tactile
feedback even wearing gloves.
* Low Power Consumption – requires only two “AA” alkaline batteries for more than 100
hours of uninterrupted operation between replacements.
* Durable Nylon and Fiberglass Composite Enclosures – highly resistance to breakage
and deformation even in the most abusive environments. The receiver enclosures and
output cables are UL94-V0 rated. The transmitter and receiver enclosures are IP66 rated.
* Full Compliance – all systems are fully complied with the FCC Part-15 Rules, IC and
European Safety Standards.
* Other Optional Accessories and Features – transmitter magnet mount, transmitter belt
clip, transmitter lanyard, transmitter rubber guard, transmitter padded casing, transmitter
shoulder strap, 2 and 3 positions rotary switches, miniature indicator light and horn kits,
charging station, plugin charger, external antenna kit, tandem function, random access
function, multiple-receiver function, and many others.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 6 of 71
2. Radio Controlled Safety
WARNINGS and CAUTIONS
Throughout this document WARNING and CAUTION statements have been deliberately placed to highlight items
critical to the protection of personnel and equipment.
WARNING – A warning highlights an essential operating or maintenance procedure, practice, etc. which if
not strictly observed, could result in injury or death of personnel, or long term physical hazards.
Warnings are highlighted as shown below:
WARNING
CAUTION – A caution highlights an essential operating or maintenance procedure, practice, etc. which if
not strictly observed, could result in damage to, or destruction of equipment, or loss of functional
effectiveness. Cautions are highlighted as shown below:
CAUTION
WARNINGS and CAUTIONS SHOULD NEVER BE DISREGARDED.
The safety rules in this section are not intended to replace any rules or regulations of any applicable local, state,
or federal governing organizations. Always follow your local lockout and tagout procedure when maintaining any
radio equipment. The following information is intended to be used in conjunction with other rules or regulations
already in existence. It is important to read all of the safety information contained in this section before installing
or operating the Radio Control System.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 7 of 71
2.1 CRITICAL INSTALLATION CONSIDERATIONS
WARNING
PRIOR TO INSTALLATION AND OPERATION OF THIS EQUIPMENT, READ AND DEVELOP AN
UNDERSTANDING OF THE CONTENTS OF THIS MANUAL AND THE OPERATION MANUAL OF THE
EQUIPMENT OR DEVICE TO WHICH THIS EQUIPMENT WILL BE INTERFACED. FAILURE TO FOLLOW
THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND DAMAGE TO EQUIPMENT.
ALL EQUIPMENT MUST HAVE A MAINLINE CONTACTOR INSTALLED AND ALL TRACKED CRANES,
HOISTS, LIFTING DEVICES AND SIMILAR EQUIPMENT MUST HAVE A BRAKE INSTALLED. FAILURE TO
FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND DAMAGE TO EQUIPMENT.
AN AUDIBLE AND/OR VISUAL WARNING MEANS MUST BE PROVIDED ON ALL REMOTE-CONTROLLED
EQUIPMENT AS REQUIRED BY CODE, REGULATION, OR INDUSTRY STANDARD. THESE AUDIBLE
AND/OR VISUAL WARNING DEVICES MUST MEET ALL GOVERNMENTAL REQUIREMENTS. FAILURE TO
FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND DAMAGE TO EQUIPMENT.
FOLLOW YOUR LOCAL LOCKOUT TAGOUT PROCEDURE BEFORE MAINTAINING ANY REMOTE-
CONTROLLED EQUIPMENT. ALWAYS REMOVE ALL ELECTRICAL POWER FROM THE CRANE, HOIST,
LIFTING DEVICE OR SIMILAR EQUIPMENT BEFORE ATTEMPTING ANY INSTALLATION PROCEDURES.
DE-ENERGIZE AND TAGOUT ALL SOURCES OF ELECTRICAL POWER BEFORE TOUCH-TESTING ANY
EQUIPMENT. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND
DAMAGE TO EQUIPMENT.
THE DIRECT OUTPUTS OF THIS PRODUCT ARE NOT DESIGNED TO INTERFACE DIRECTLY TO TWO
STATE SAFETY CRITICAL MAINTAINED FUNCTIONS, I.E., MAGNETS, VACUUM LIFTS, PUMPS,
EMERGENCY EQUIPMENT, ETC. A MECHANICALLY LOCKING INTERMEDIATE RELAY SYSTEM WITH
SEPARATE POWER CONSIDERATIONS MUST BE PROVIDED. FAILURE TO FOLLOW THIS WARNING
COULD RESULT IN SERIOUS INJURY OR DEATH OR DAMAGE TO EQUIPMENT.
2.2 GENERAL
Radio controlled material handling equipment operates in several directions. Cranes, hoists, lifting devices and
other material handling equipment can be large, and operate at high speeds. Quite frequently, the equipment is
operated in areas where people are working in close proximity to the material handling equipment. The operator
must exercise extreme caution at all times. Workers must constantly be alert to avoid accidents. The
following recommendations have been included to indicate how careful and thoughtful actions may prevent inju-
ries, damage to equipment, or even save a life.
2.3 PERSONS AUTHORIZED TO OPERATE RADIO
CONTROLLED CRANES
Only properly trained persons designated by management should be permitted to operate radio controlled
equipment.
Radio controlled cranes, hoists, lifting devices and other material handling equipment should not be operated by
any person who cannot read or understand signs, notices and operating instructions that pertain to the equipment.
Radio controlled equipment should not be operated by any person with insufficient eyesight or hearing or by any
person who may be suffering from a disorder or illness, is taking any medication that may cause loss of
equipment control, or is under the influence of alcohol or drugs.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 8 of 71
2.4 SAFETY INFORMATION AND RECOMMENDED TRAINING
FOR RADIO CONTROLLED EQUIPMENT OPERATORS
Anyone being trained to operate radio controlled equipment should possess as a minimum the following
knowledge and skills before using the radio-controlled equipment.
The operator should:
 have knowledge of hazards pertaining to equipment operation
 have knowledge of safety rules for radio-controlled equipment
 have the ability to judge distance of moving objects
 know how to properly test prior to operation
 be trained in the safe operation of the radio transmitter as it pertains to the crane, hoist, lifting device or
other material handling equipment being operated
 have knowledge of the use of equipment warning lights and alarms
 have knowledge of the proper storage space for a radio control transmitter when not in use
 be trained in transferring a radio control transmitter to another person
 be trained how and when to report unsafe or unusual operating conditions
 test the transmitter emergency stop and all warning devices prior to operation; testing should be done
on each shift, without a load
 be thoroughly trained and knowledgeable in proper and safe operation of the crane, hoist, lifting device,
or other material handling equipment that utilizes the radio control
 know how to keep the operator and other people clear of lifted loads and to avoid “pinch” points
 continuously watch and monitor status of lifted loads
 know and follow cable and hook inspection procedures
 know and follow the local lockout and tagout procedures when servicing radio-controlled equipment
 know and follow all applicable operating and maintenance manuals, safety procedures, regulatory
requirements, and industry standards and codes
The operator shall not:
 lift or move more than the rated load
 operate the material handling equipment if the direction of travel or function engaged does not agree
with what is indicated on the controller
 use the crane, hoist or lifting device to lift, support or transport people
 lift or carry any loads over people
 operate the crane, hoist or lifting device unless all persons, including the operator, are and remain clear
of the supported load and any potential pinch points
 operate a crane, hoist or lifting device when the device is not centered over the load
 operate a crane, hoist or lifting device if the chain or wire rope is not seated properly in the sprockets,
drum or sheave
 operate any damaged or malfunctioning crane, hoist, lifting device or other material handling equipment

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 9 of 71
 change any settings or controls without authorization and proper training
 remove or obscure any warning or safety labels or tags
 leave any load unattended while lifted
 leave power on the radio-controlled equipment when the equipment is not in operation
 operate any material handling equipment using a damaged controller because the unit may be unsafe
 operate manual motions with other than manual power
 operate radio-controlled equipment when low battery indicator is on
WARNING
THE OPERATOR SHOULD NOT ATTEMPT TO REPAIR ANY RADIO CONTROLLER. IF ANY PRODUCT
PERFORMANCE OR SAFETY CONCERNS ARE OBSERVED, THE EQUIPMENT SHOULD IMMEDIATELY BE
TAKEN OUT OF SERVICE AND BE REPORTED TO THE SUPERVISOR. DAMAGED AND INOPERABLE
RADIO CONTROLLER EQUIPMENT SHOULD BE RETURNED TO ARC FOR EVALUATION AND REPAIR.
FAILURE TO FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND DAMAGE TO
EQUIPMENT.
2.5 TRANSMITTER UNIT
Transmitter switches should never be mechanically blocked ON or OFF. When not in use, the operator should
turn the transmitter OFF. A secure storage space should be provided for the transmitter unit, and the transmitter
unit should always be placed there when not in use. This precaution will help prevent unauthorized people from
operating the material handling equipment.
Spare transmitters should be stored in a secure storage space and only removed from the storage space after
the current transmitter in use has been turned OFF, taken out of the service area and secured.
2.6 PRE-OPERATION TEST
At the start of each work shift, or when a new operator takes control of the crane, operators should do,
as a minimum, the following steps before making lifts with any crane or hoist:
Test all warning devices.
Test all direction and speed controls.
Test the transmitter emergency stop.
2.7 BATTERIES
WARNING
KNOW AND FOLLOW PROPER BATTERY HANDLING, CHARGING AND DISPOSAL PROCEDURES.
IMPROPER BATTERY PROCEDURES CAN CAUSE BATTERIES TO EXPLODE OR DO OTHER SERIOUS
DAMAGE. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH AND
DAMAGE TO EQUIPMENT.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 10 of 71
2.8 USED SYMBOL DESCRIPTION
Danger electric shock risk
Equipment Recycling: The production and operation of this equipment requires the
recycling and utilization of natural resources. There are substances that are harmful to
the environment or human health. To avoid the release of such substances into the
environment and to reduce the use of natural resources, it is recommended that you
recycle this product through a suitable system to ensure that most of the materials are
properly recycled or reused.
Earth; ground protection against electric shock in case of a fault, or the terminal of a
protective earth (ground) electrode.
2.9 METHOD CLEANING PRODUCTS
Wipe the dust, smudges and stains on the surface of the product with a damp, lint-free cloth.
2.10 PRODUCT MAINTENANCE
Do not drop or damage the controller. Drop controllers can cause delicate electronic parts to loosen and affect
the use of functions.
2.11 POWER SUPPLY
The POWER front end must be equipped with circuit breaker as the way to power off the product.
2.12 ENVIRONMENT CONDITION
 Outdoor use.
 Altitude up to 2000 Meters (6500 feet).
 Maximum Relative Humidity 90%.
 MAINS supply voltage fluctuations up to ±10%.
 OVERVOLTAGE CATEGORY II.
 WET LOCATION, applicable.
 Applicable POLLUTION DEGREE 2 of the intended environment (in most cases).

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 11 of 71
3. General System Information
3.1 Transmitter
3.1.1 8EPV External Illustration
1. STOP Button 9. Pushbutton 6 (PB6)
2. Power Key Switch 10. Pushbutton 7 (PB7)
3. Status LED Indicator 11. Pushbutton 8 (PB8)
4. Pushbutton 1 (PB1) 12. TAC* and Wireless Charging Slot
5. Pushbutton 2 (PB2) 13. Battery Cover Screw
6. Pushbutton 3 (PB3) 14. System Information
7. Pushbutton 4 (PB4) 15. Lanyard and Waist Belt
8. Pushbutton 5 (PB5) Attachment Slot
* Transmitter Access Card
Note: Flex 8EPV-AB and 8EPV-T models are with A/B/A+B rotary switch on PB8 slot.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 12 of 71
3.1.2 12EPV External Illustration
1. STOP Button 11. Pushbutton 8 (PB8)
2. Power Key Switch 12. Pushbutton 9 (PB9)
3. Status LED Indicator 13. Pushbutton 10 (PB10)
4. Pushbutton 1 (PB1) 14. Pushbutton 11 (PB11)
5. Pushbutton 2 (PB2) 15. Pushbutton 12 (PB12)
6. Pushbutton 3 (PB3) 16. TAC* and Wireless Charging Slot
7. Pushbutton 4 (PB4) 17. Battery Cover Screw
8. Pushbutton 5 (PB5) 18. System Information
9. Pushbutton 6 (PB6) 19. Lanyard and Waist Belt
10. Pushbutton 7 (PB7) Attachment Slot
* Transmitter Access Card
Note: Flex 12EPV-AB and 12EPV-T models are with A/B/A+B rotary switch on PB12 slot.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 13 of 71
3.1.3 8EPV Internal Illustration
1. RF Transceiver Board 5. LED 1/2/3/4 Indicators
2. Encoder Board 6. Function Dipswitch
3. Status LED Indicator 7. Programming Port
4. Infrared Sensors
Note: Flex 8EPV-AB and 8EPV-T models are with A/B/A+B rotary switch on PB8 slot.
1
3
2
45
6 7

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 14 of 71
3.1.4 12EPV Internal Illustration
1. RF Transceiver Board 5. LED 1/2/3/4 Indicators
2. Encoder Board 6. Function Dipswitch
3. Status LED Indicator 7. Programming Port
4. Infrared Sensors
Note: Flex 12EPV-AB and 12EPV-T models are with A/B/A+B rotary switch on PB12 slot.
1
3
2
45
6 7

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 15 of 71
3.2 Receiver
3.2.1 8EPV and 12EPV External Illustration
1. External Antenna Port (optional) 6. Remote Pairing Button
2. COM LED Indicator 7. System Information
3. Status LED Indicator 8. Cord Grip
4. Power LED Indicator 9. Mounting Bracket
5. Infrared Sensors 10. Mounting Bracket Release
1
2
3
4
5
9
6
7
810

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 16 of 71
3.2.2 8EPV and 12EPV Internal Illustration
1. Decoder Board 5. Programming Buttons
2. RF Transceiver Board 6. Line Filter/Digital/Analog Mother Board
3. INT/EXT Antenna Jumpers 7. Power Transformer
4. LCD Screen 8. Digital & Analog Output Modules
1
2
4
5
3
CN11
CN17
Function3
6
7
8

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 17 of 71
2-Step Relay Module (for 1-step and 2-step pushbutton pair)
3-Step Relay Module (for 3-step pushbutton pair)
Analog Module (for stepless pushbutton pair)
LED1 LED2 LED3 LED4
LED1
LED2
LED3
LED4
LED5
LED6
LED1 LED2 LED3 LED4
A V
A V
A CURRENT
V VOLTAGE

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 18 of 71
4. Function Settings
4.1 Transmitter
4.1.1 Transmitter Firmware Version
1) Rotate the power switch key to OFF ( 0 ) position.
2) With the STOP button elevated, press and hold PB1 and PB3
at the same time.
3) Rotate the power switch key to ON ( I ) position.
4) Let go PB1 and PB3 at the same time. The Status LED
displays firmware version with red, green and orange blinks.
5) Exit Firmware Version mode by rotate the power switch key to
OFF ( 0 ) position.
4.1.2 Transmitter Channel Settings
A. Unassigned Channel Scheme (no preset system channel)
When both transmitter and receiver is set to unassigned channel scheme (no
preset channel) the system automatically search and lock onto a free and
uninterrupted channel at every transmitter startup. Tandems, random access,
pitch & catch, t-type, and multi-receiver configurations “can not” set to
unassigned channel scheme.
1) Rotate the power switch key to OFF ( 0 ) position.
2) With the STOP button elevated, press and hold PB1 and PB2
at the same time.
3) Rotate the power switch key to ON ( I ) position.
4) Let go PB1 and PB2 at the same time (entered Channel
Setting mode). The Status LED displays current channel
setting with red and green blinks. A green blink represents the
tens (+10) and a red blink represents the units (+1). For
example, 1 green blink followed by 5 red blinks is channel 15. Channel unassigned
is represented by constant orange on the Status LED.
5) Change transmitter channel to “channel unassigned” by pressing PB4 one time
(Status LED displays constant orange). Make sure constant orange is shown on
the Status LED before proceeding to the next step below.
6) Transfer “channel unassigned” setting to the receiver by rotate and hold the power
switch key at START position until the Status LED turns to constant green (transfer
complete). Turn off the transmitter power if constant green is not shown on the
Status LED after more than 10 seconds (transfer incomplete); the transmitter will
revert back to its previous channel setting. Make sure the receiver power is turned
on and within the operating distance during the entire process. When transmitter is
set to “channel unassigned” the receiver must also set to “channel unassigned” in
order for the entire system to work.
7) Exit Channel Setting mode by rotate the power switch key to OFF ( 0 ) position.

Flex EPV Instruction Manual (CE)
April 2020 v1.0
Page 19 of 71
B. Assigned Channel Scheme (preset system channel)
Both transmitter and receiver is assigned with a matching preset channel (channel
01~62). Tandems, random access, pitch & catch, t-type, and multi-receiver
configurations “must” set to assigned channel scheme.
1) Rotate the power switch key to OFF ( 0 ) position.
2) With the STOP button elevated, press and hold PB1 and PB2
at the same time.
3) Rotate the power switch key to ON ( I ) position.
4) Let go PB1 and PB2 at the same time (entered Channel
Setting mode). The Status LED displays current channel
setting with red and green blinks. A green blink represents the
tens (+10) and a red blink represents the units (+1). For example, 1 green blink
followed by 5 red blinks is channel 15. Channel unassigned is represented by
constant orange on the Status LED.
5) Change transmitter channel by pressing PB1 to increment the units (+1) and PB2 to
increment the tens (+10). For example, press PB2 two times and then PB1 four
times is channel 24 (Status LED blinks 2 greens and 4 reds). Make sure the newly
selected channel is shown on the Status LED before proceeding to the next step
below.
6) Transfer the newly selected channel to the receiver by rotate and hold the power
switch key at START position until the Status LED turns to constant green (transfer
complete). Turn off the transmitter power if constant green is not shown on the
Status LED after more than 10 seconds (transfer incomplete); the transmitter will
revert back to its previous channel setting. Make sure the receiver power is turned
on and within the operating distance during the entire process. Skip step 6 if
changing receiver channel is not required.
7) Exit Channel Setting mode by rotate the power switch key to OFF ( 0 ) position.
Note: When selecting a new channel, make sure each button press does not exceed 3 seconds.
Important Note:
Step 6 illustrated above is strictly required if you are intending to change the entire system
channel (both transmitter and receiver). The entire system no longer works if step 6 is skipped
because the transmitter and receiver channels are now different (new vs. old). In this case you
would have to redo step 1~4 and step 6 to transfer the newly selected transmitter channel to
the receiver.