BURG TwinPad Operating Manual

This document provides comprehensive instructions for the BURG TwinPad electronic furniture lock.

TwinPad Touchpad

The touchpad unit features a numeric keypad, status LED, and an RFID antenna.

A Touchpad buttons
B RFID antenna
C Status LED
D Mini-USB port

Back Unit

The back unit houses the locking mechanism and battery compartment.

A Battery cover screw
B Battery cover
C Locking bolt
D Beeper
E Resethole

Note: It is recommended to cover the reset hole with a black circular sticker to make any manipulations visible.

Content Overview

Introduction
General
Technical Data
Default Settings
Scope of Delivery
Features
Product Dimensions
Functional Description
Assembly Instructions
Configuration
Operation
Emergency Power Supply
Battery Replacement
Disposal and Battery Note

Introduction

The BURG TwinPad electronic furniture lock offers flexible access control using either a code entry or an RFID transponder solution (card, chip, wristband). It is suitable for various applications including hotels, fitness studios, educational institutions, offices, and workshops. The lock can be installed in both wooden and metal cabinets.

Important: Please observe all warnings and read through the entire operating instructions before beginning configuration.

General

The latest version of this guide is available at: www.burg.de

Factsheet

Touchpad & Back Unit

Technical Data

Property	Value
Dimensions	Touchpad: 107 x 56 x 13 mm Back unit: 140 x 65 x 25 mm
Batteries	VARTA AA (4x)
Locking cycles	approx. 10,000
Working temperature	-25°C to +55°C
Working humidity	10% to 85% RH
Storage temperature	-40°C to +55°C
Static current	<30µA
Dynamic current	<120mA
Material	Touchpad: plastic Touchpad frame: metal Back unit housing: plastic
Locking direction	Right, Left
Mode	Private Mode (default), Multi User Mode
RFID type	MIFARE® Classic, MIFARE® Desfire Evo II
Card inductive distance	5 to 10 mm
Master Cards	max. 3
User Cards	max. 27
No. of codes (private mode)	max. 1
Code/ Master Code length	4 to 8 digits

Default Settings

Setting	Value
Mode	Private Mode
Code	1234
Master Code	934716
Signal tones	LOUD

¹ The lock is approved for VARTA brand batteries. The use of other batteries may result in a reduced number of possible locking cycles.

Scope of Delivery

1x locking system (touchpad + back unit)
1x spring-loaded strike plate
1x RFID card (MIFARE® Classic)
1x reset pin (configuration pin)
2x screws (M4 x 29.5 mm)
3x wood screws (3.4 mm x 20 mm)
1x screw for battery compartment cover (3 mm x 8 mm)

Optional Accessories

Function cards „Volume” (LOUD / SILENT / OFF)
Micro USB cable for emergency power supply

Features

Dual mode: code and RFID access
Can be used in wooden and metal doors (indoors)
Latch system - door locks when pushed
Slim front unit with metal frame
Adjustable volume of signal tones
Emergency power supply with USB port (Micro-USB)

Product Dimensions

Touchpad: Height: 107 mm, Width: 56 mm, Depth: 13 mm. The keypad area is 80 mm high. The RFID antenna area is approximately 5.2 mm deep.

Back Unit: Height: 140 mm, Width: 65 mm, Depth: 25 mm. Features mounting holes and a locking bolt mechanism.

Functional Description

Locking Mechanism Diagrams:

Back Unit: Overall dimensions 140 mm height, 65 mm width, 25 mm depth. Features a locking bolt (C) with dimensions approximately 69.5 mm length and 42.6 mm width. Includes mounting points and a beeper (D).

Arretiereinheit (Locking Mechanism): Shows the internal mechanism with dimensions such as 38 mm height, 19 mm width, and a 30 mm depth. Includes a hole for the locking bolt and mounting points.

Mode: Fixed Assigned Authorization (Private Mode)

This mode is suitable for user groups with stable access requirements, such as office cabinets. A pre-set user code or transponder medium is used for operation.

User Code: To lock, enter a stored user code and confirm with the hook key [✔️]. The lock unlocks with a stored user code. The locking bolt locks automatically after 5 seconds. Unstored codes are rejected.
Transponder: To unlock, hold a stored transponder medium centrally in front of the lock. The locking bolt locks automatically after 5 seconds. Non-stored transponders are rejected.

Mode: Multi User Authorization (Multi User Mode)

Ideal for temporary or single-use compartments, like in sports facilities. Codes or transponders are valid for a single locking process and are deleted upon compartment reopening, allowing a new code or transponder to be used. The locking bolt remains open until relocked.

User Code: Before locking, close the door (press lightly). Enter a user code (4-8 digits) and confirm with the hook key [✔️]. The green LED [?] flashes. The lock opens with the same code.
Transponder: Before locking, close the door (press lightly). Hold the transponder medium centrally in front of the lock. The green LED [?] flashes. The lock can only be opened with the same transponder medium.

Master Code

The Master Code allows independent unlocking (emergency opening). In Multi User Mode, entering the Master Code deletes the user code used for locking. In Private Mode, it resets the user code to the default (1234).

Note: It is recommended to program a private Master Code before operation.

Master Card

The Master Card allows independent unlocking (emergency opening). In Multi User Mode, it deletes the transponder medium used for locking.

Automatic locking (Private Mode)

The lock automatically locks five seconds after unlocking, without requiring the door to be closed. The latch function allows the door to be closed by pressing slightly even when the lock is engaged.

LED locking indication

When the lock is locked, the green LED [?] flashes briefly at regular intervals.

Block mode

After four consecutive failed opening attempts, the lock is blocked for 60 seconds. During this period, no action is possible, except opening with an RFID transponder. For code access, the block mode remains active for the full 60 seconds.

Signal tones

Signal tones sound during opening, closing, and configuration steps. Volume can be adjusted using LOUD, SILENT, or OFF function cards.

Battery Warning

A short signal tone sounds if battery voltage is low. If voltage drops to a critical range, three beeps [???] sound, and the lock becomes inoperable.

Assembly Instructions

Drill all holes required for installation according to the dimensioned product drawing.
Carefully place the front unit on the front of the cabinet and pass the connecting cable through the appropriate hole (optimal diameter 18mm).
If batteries are already installed, open the battery compartment and remove the 4 AA batteries from the back unit.
Connect the back unit and the connecting cable: Carefully slide the cable into the socket on the back of the back unit, ensuring the two small guide rails are visible.
Ensure the ribbon cable is not pinched during installation to prevent permanent damage and voiding the warranty.
Important note on screws: The included M4x29.5 screws are for doors/drawers with a material thickness of 17 mm to 30 mm. For thinner fronts (e.g., steel doors), shorter M4 screws are required (formula: material thickness + 13mm). Using the existing screws on thinner material can permanently damage the touchpad. For fronts thinner than 2.8mm, consider using a wooden/HPL adapter plate or washers (min. 6.8mm inside diameter) to compensate for distance. Insert the 2 threaded screws (M4x29.5) through the corresponding holes and screw the back unit to the touchpad. After plugging in the touchpad, slide washers onto the lugs from the inside before screwing on the back unit. Failure to follow this instruction will void the manufacturer's warranty.
Place the spring-loaded strike plate on the inside of the cabinet and fix it with the 3 wood screws (3.4x20).
Insert the four AA batteries and close the battery case. Fix the housing cover with the appropriate screw (3x8).
Ensure the battery cover is closed before closing the cabinet door. Never close the cabinet door with the battery cover open, as this may cause batteries to come loose. Test if the door closes smoothly and the lock engages without pressure or friction. Adjust the lock and striking plate if necessary. Start system setup (programming code and RFID).

Configuration

Default Settings

User code: 1234
Master Code: 934716

1. Set the Mode

a) Private Mode (default): Open battery compartment, remove one battery. Press and hold the reset pin [?] in the reset hole. Reinsert the battery. Release the pin when you hear a beep and the locking bolt moves out.
b) Multi User Mode: Open battery compartment, remove one battery. Press and hold the reset pin [?] in the reset hole. Reinsert the battery. Release the pin when you hear two beeps and the locking bolt moves in.

Note: After switching modes, the lock resets to the default settings of the new mode.

2. Set Master Code and User Code

a) Master Code (Private Mode / Multi User Mode): Enter current Master Code + [✔️]. Confirmation by a longer beep and flashing LED [?]. Enter new Master Code (4-8 digits) + [✔️]. Confirmation by a longer beep. Note: Only one Master Code can be stored; a new one overwrites the old one.
b) Set User Code (Private Mode): Enter current user code + [✔️]. Confirmation by a longer beep and flashing LED [?]. Enter new user code (4-8 digits) + [✔️]. Confirmation by a longer beep. Note: Only one user code can be stored; a new one overwrites the old one.

3. Master Card and User Card

a) Assign Master Card: Enter Master Code + [✔️]. Confirmation by a longer beep and flashing LED [?]. Hold Master Card centrally in front of the lock. A long beep confirms addition. Add more Master Cards (up to 3). Wait for LED to stop flashing.
b) Assign User Card (Private Mode): Hold Master Card centrally. Wait for beep and LED light up. Hold Master Card again until LED flashes. Hold user card centrally. A beep confirms addition. Add more user cards (up to 27). Wait for LED to stop flashing.
c) Delete User Card (Private Mode): Hold Master Card centrally. Wait for beep and LED light up. Hold Master Card again until LED flashes. Hold Master Card a third time until LED flashes quickly. Hold the user card to be deleted centrally. A long beep confirms deletion. Delete more user cards if needed. Wait for LED to stop flashing. Test: Hold deleted card; three short beeps [???] indicate it's not added.

c) Reset Code

Enter Master Code: XXXX (XXXX). Entering the Master Code opens the lock. In Multi User Mode, the active code is deleted. In Private Mode, the code resets to the default (1234).

4. Set Volume

Hold the function card (LOUD, SILENT, or OFF) centrally in front of the lock.
A long beep and flashing green LED [?] confirm success.

5. Reset the lock to default settings

Slightly press the reset pin [?] into the resethole.
A long beep confirms success.

Note: The lock remains in its current mode. All settings, user cards, and Master Cards are reset to the default settings of that mode. The code and Master Code revert to default.

Operation

Operation in Private Mode

a) Unlock via User Code: Enter user code + [✔️]. Confirmation by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Note: Wrong code entry signals 3 beeps [???].
b) Unlock via Master Code (emergency opening): Enter Master Code + [✔️]. Confirmation by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Unlocking by Master Code resets the active code to the default (1234). Note: Wrong Master Code entry signals 3 beeps [???].
c) Unlock via User Card/ Master Card: Hold authorized user card or Master Card centered in front of the lock. Confirmation by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Note: Unauthorized card entry signals 3 beeps [???].
d) Lock: The lock automatically locks after 5 seconds.

Operation in Multi User Mode

a) Lock and Unlock via User Code: Lock: User code + [✔️]. Unlock: User code + [✔️]. Both confirmed by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Note: Wrong code entry signals 3 beeps [???].
b) Unlock via Master Code (emergency opening): Enter Master Code + [✔️]. Confirmation by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Unlocking by Master Code deletes the active code. Note: Wrong Master Code entry signals 3 beeps [???].
c) Lock and Unlock via User Card: Lock: Hold user card in front of the lock. Unlock: Hold user card in front of the lock again. Both confirmed by a longer beep. Unlocking occurs automatically when the green LED [?] lights up. Note: Unauthorized card entry signals 3 beeps [???].
d) Unlock via Master Card (emergency opening): Hold authorized Master Card centrally in front of the lock. Confirmation by a longer beep. Unlocking occurs automatically when the LED [?] lights up. Unlocking by Master Card deletes the active user card. Note: Unauthorized Master Card entry signals 3 beeps [???].

Emergency Power Supply

If batteries have insufficient voltage, an external power supply can be connected via the micro USB port. Connect the touchpad to a power supply, notebook, or power bank using a micro USB cable. The lock can then be operated again.

Note: Replace batteries immediately when low.

Battery Replacement

If the lock indicates a low battery level, change the batteries immediately.

Note: The lock is approved for VARTA brand batteries. Using other batteries may reduce the number of possible locking cycles.

Loosen the screw of the battery compartment cover and remove the cover.
Remove empty batteries and insert new batteries according to the symbols (+ / -).
Close the battery compartment with the cover and fix it with the screw.

Disposal and Battery Note

EU Directive 2012/19/EU regulates the proper take-back, treatment, and recycling of used electronic equipment.

Consumers are legally required to dispose of batteries, accumulators, or electrical/electronic equipment separately from household waste, as they contain harmful substances and valuable resources. Disposal can be done at approved collection or take-back points (e.g., local recycling centers) free of charge. Waste equipment, batteries, or rechargeable batteries are accepted there and recycled in an environmentally friendly manner.

Waste equipment, used batteries, or rechargeable batteries can also be returned to BURG F. W. Lüling KG. The return must be sufficiently stamped to the address below.

The following symbol on waste electrical equipment, batteries, or accumulators indicates they must not be disposed of with household waste:

[WEEE symbol - crossed-out wheelie bin]

Caution when using batteries!

Batteries may explode or release flammable gases if mishandled, destroyed, or if the wrong type is used. Do not recharge, disassemble, expose to extreme temperatures, or throw batteries into a fire.

On batteries containing harmful substances, look for abbreviations like cadmium (Cd), mercury (Hg), and lead (Pb).

BURG F.W. Lüling KG
Volmarsteiner Str. 52
58089 Hagen (Germany)
+49 (0)2335 6308-0
info@burg.de
www.burg.de