FCC ID: 2AXRT-WTC R series balances

OCTOBER 2021 2 PRECAUTIONS Prior to installation, use or maintenance activities, carefully read this user manual and follow the provided guidelines. Prior to the first use, carefully read this user manual. Use the weighing device only as intended. Place weighed loads in the centre of the weighing pan. Load the weighing pan with loads of gross weight which does not exceed the maximum capacity. Mind not of time. to leave heavy loads on the weighing pan for longer periods Protect the indicator against considerable temperature variation, solar and UV radiation, substances causing chemical reactions. The WTC scale must not be operated in hazardous areas endangered with explosion of gases, and in dusty environments. In case of damage, immediately unplug the device from the mains. Scales to be decommissioned must be decommissioned in accordance with valid legal regulations. Do not let battery discharge in case of prolonged storage of the device in low temperature. A worn out battery can be replaced only by the manufacturer or by the authorized service. Accumulators do not belong to regular household waste. The European legislation requires discharged accumulators to be collected and disposed separately from other communal waste with the aim of being recycled. Symbols on batteries identify harmful compounds: Pb = lead, Cd = cadmium, Hg = mercury. Dear user, you are obliged to dispose of the worn out batteries as regulated. This device contains the Wi-Fi & Bluetooth Module should be used in such a manner that the potential for continuous human contact during normal operation is minimized and a separation distance of at least 20 cm from all persons is provided. The device cannot be co-located with any other transmitters within 20 cm. 3 CONTENTS 1. INTENDED USE ................................................................................................................................................. 5 2. WARRANTY CONDITIONS ............................................................................................................................... 6 3. MAINTENANCE ACTIVITIES ............................................................................................................................ 6 3.1. Cleaning ABS Components ......................................................................................................................... 6 3.2. Cleaning Stainless Steel Components ........................................................................................................ 7 3.3. Cleaning Powder-Coated Components ....................................................................................................... 7 3.4. Cleaning Aluminium Components ............................................................................................................... 7 4. SERVICE AND REPAIR ..................................................................................................................................... 7 5. RECYCLING ....................................................................................................................................................... 8 6. MECHANICAL DESIGN ..................................................................................................................................... 8 6.1. Dimensions .................................................................................................................................................. 8 6.2. Connectors Arrangement ............................................................................................................................ 9 6.3. RS232 Connector ........................................................................................................................................ 9 6.4. Operation Panel ......................................................................................................................................... 10 7. INSTALLATION ................................................................................................................................................ 10 7.1. Unpacking and Installation ........................................................................................................................ 10 7.2. Levelling ..................................................................................................................................................... 11 7.3. Connecting the Scale to the Mains ........................................................................................................... 11 7.4. Warm-Up Time .......................................................................................................................................... 12 7.5. Battery Charge Status ............................................................................................................................... 12 7.6. Battery Charge Status Check .................................................................................................................... 12 8. OPERATING THE MENU ................................................................................................................................. 13 8.1. Return to the Weighing Mode .................................................................................................................... 13 9. WEIGHING ........................................................................................................................................................ 13 10. DIAGRAMS OF CONNECTION CABLES ..................................................................................................... 14 11. TECHNICAL SPECIFICATIONS.................................................................................................................... 15 12. TROUBLESHOOTING ................................................................................................................................... 15 13. ERROR MESSAGES ..................................................................................................................................... 16 4 1. INTENDED USE WTC precision scale enables fast and accurate mass measurements under laboratory conditions. The weighing pan, made of stainless steel and equipped with an anti-draft shield, is an integral part of the WTC scale. Due to a backlit LCD display the measurement result is clearly visible. The scale is equipped with an internal battery which allows its operation in places where there is no access to the mains. WTC scale is equipped with the following interfaces: RS 232, USB type A, USB type B, wireless communication (option). The interfaces enable cooperation between the scale and peripheral devices (e.g. printer, computer, flash drive). in accordance with the 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 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:

- 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. NOTE: 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. NOTE: The grantee is not responsible for any changes or modifications not expressly approved by the party responsible for compliance. Such modifications could void the users authority to operate the equipment. 5 2. WARRANTY CONDITIONS A. RADWAG feels obliged to repair or exchange all elements that appear to be faulty by production or by construction. B. Defining defects of unclear origin and means of their elimination can only be realized with assistance of manufacturer and user representatives. C. RADWAG does not bear any responsibility for damage or losses resulting from unauthorized or inadequate performing of production or service processes. D. The warranty does not cover:

mechanical damage caused by product exploitation other than intended, damage of thermal and chemical origin, damage caused by lightning, overvoltage in the power network or other random event, inappropriate cleaning habits. E. Loss of warranty takes place if:

a repair is carried out outside RADWAG authorized service point, service claims intrusion into mechanical or electronic construction by unauthorized people, the device does not bear company security stickers. F. Warranty conditions outline the warranty period for rechargeable batteries attached to the device for 12 months. G. For detailed warranty conditions read the warranty certificate. H. Contact with the central authorized service: +48 (48) 386 63 30. 3. MAINTENANCE ACTIVITIES In order to ensure safety in the course of cleaning, it is necessary to disconnect the device from the mains. With this condition met, uninstall the weighing pan and other detachable components. Cleaning the weighing pan while still installed may cause damage of the measuring system. 3.1. Cleaning ABS Components To clean dry surfaces and avoid smudging, use clean non-colouring cloths made of cellulose or cotton. You can use a solution of water and detergent

(soap, dishwashing detergent, glass cleaner). Gently rub the cleaned surface and let it dry. Repeat cleaning process if needed. In the case of hard to remove contamination, e.g. residues of adhesive, rubber, resin, polyurethane foam etc., you can use a special cleaning agents based on a mixture of aliphatic hydrocarbons that do not dissolve plastics. 6 Before using the cleanser for all surfaces we recommend carrying out tests. Do not use cleansers containing abrasive substances. 3.2. Cleaning Stainless Steel Components Avoid using cleansers containing any corrosive chemicals, e.g. bleach

(including chlorine). Do not use cleansers containing abrasive substances. Always remove the dirt using microfiber cloth to avoid damage of protective coating. In case of a daily maintenance:

1. Remove the dirt using cloth dipped in warm water. 2. For best results, add a little bit of dishwashing detergent. 3.3. Cleaning Powder-Coated Components For preliminary cleaning process stage you need running water or wet sponge featuring large holes, this will help you to remove loose, heavy dirt. Do not use cleansers containing abrasive substances. Next, using cloth and cleanser-

water solution (soap, dishwashing liquid) gently rub the cleaned surface. Avoid using cleanser without water since it may result with damage of the cleaned surface, please mind that large amount of water mixed with cleanser is a must. 3.4. Cleaning Aluminium Components While cleaning aluminium components use products acid by nature, e.g. spirit vinegar, lemon. Do not use cleansers containing abrasive substances. Avoid using hard brush, this may cause scratches. It is recommended to use the surface use circular movements. microfibre cloth. While polishing Use clean, dry cloth to make the surface shine. 4. SERVICE AND REPAIR In case of any sign of damage, it is necessary to disconnect the device form the mains immediately. The damaged component must be replaced or repaired by RADWAG service directly. In case of any problems with correct operation of the scale, contact the closest manufacturer's service point. In case of defects, deliver the faulty product to the manufacturer's service point. 7 If the product cannot be delivered to the manufacturer's service point, call the service and report the defect. Repair scope and method will be set up. The user is NOT ALLOWED to carry out any kind of repair of the device himself/herself. Any attempt of scale modification, repair etc., by unauthorized persons, will result with loss of validity of manufacturer-issued certificates, declarations and warranty. 5. RECYCLING HY10 scales must be recycled, they are not to be treated as a regular household waste. Scales to be decommissioned must be decommissioned in accordance with valid legal regulations. 6. MECHANICAL DESIGN 6.1. Dimensions 8 Figure 1. Dimensions of WTC 200 scale Figure 2. Dimensions of WTC 600, WTC 2000, WTC 3000 scale 6.2. Connectors Arrangement Figure 3. Connectors view DC IN power supply socket RS232 - RS232 connector USB 2 - USB device connector USB 1 - USB host connector 6.3. RS232 Connector RS232 (1) connector DB9/M (male) Pin2 RxD Pin3 TxD Pin4 5 VDC Pin5 GND 9 6.4. Operation Panel Keys:

Press to zero the scale. Press to tare the scale.

of this manual. 7. INSTALLATION 7.1. Unpacking and Installation Figure 4. Operation panel of WTC series scales Press to switch the weighing device on/off hold the key for about 1 second. Function key, press to change the working mode. Press to send the weighing result to a printer or computer. Upon pressing keys combination, functions of given keys change. Detailed information concerning use

keys combination is to be found further down Unpack the device and place it on a flat and even surface. Keep it far away from any sources of heat. 10 Install the weighing pan and the draft shield, follow figure 5. Figure 5. Scale assembly 7.2. Levelling To level the weighing instrument turn its feet. Keep turning the feet until the air bubble takes central position:

7.3. Connecting the Scale to the Mains The weighing device can be connected to the mains only with a power supply that comes standard with the particular model. Nominal voltage of the power supply (specified on the power supply data plate) has to be compatible with the mains nominal voltage. Procedure:

Connect the power supply to the mains. Plug it to the power supply socket

(back side of the scale housing). Press key. The key is also used to switch the scale on/off. 11 Display test proceeds (all symbols are backlit for a moment), program name and number is displayed first, ZERO indication with reading unit next (displayed reading unit is conditioned by scale type). In case the weighing result is not zero after indication stabilisation, press key. 7.4. Warm-Up Time For correct scale operation, the workroom temperature must range between +15C +30C. It takes 30 minutes for the device to warm up. During the thermal stabilization, the indications on the screen can change. If you want to carry out adjustment operation, make sure that your device is thermally stable. Temperature and humidity variations during operation may cause indication errors. To remove the indication errors perform user adjustment. 7.5. Battery Charge Status The scale of standard design is equipped with an internal battery. Battery state is signalled by pictogram, the pictogram is displayed in the top bar of the display. pictogram display mode Meaning No pictogram Battery charged. Regular scale operation. Pictogram displayed continuously Too low battery charge (the scale is about to shut down). Charge the battery immediately. Blinking pictogram, blink frequency:

ca. 1 s Battery charge in progress. The device is connected to the power supply charging the battery. Blinking pictogram, blink frequency:

ca. 0.5 s 7.6. Battery Charge Status Check Battery error. Battery is damaged. Press Depending on the battery state, a respective status is displayed on the keys combination. and screen for 2s:

80%

Battery power supply. Battery power given in %. CHArGE Battery charge in progress. The device is connected to the power supply charging the battery. 12

-Err5-

Battery error. Battery is damaged. Next, the home screen is displayed automatically. 8. OPERATING THE MENU In order to navigate the program menu use the operation panel.

Press to enter the main menu. Press to enter tare manually. Press to enter tare from tare database. Press to change value by 1 digit up. Press to scroll the menu up. Press to check battery/accumulator state. Press to view date/time. Press to scroll the menu down. Press to change current parameter value. Press to enter given submenu. Press to modify given parameter. Press to confirm modification. Press to exit, function remains unmodified. Press to move one menu level up. 8.1. Return to the Weighing Mode Introduced menu modifications are automatically saved to scale memory upon return to the home screen. To return to the home screen press repeatedly. 9. WEIGHING key Load the weighing pan. Read the result when stability marker is displayed. To assure long-term operation and correct mass measurements, follow the rules presented below:

13 Load avoiding mechanical shocks. the weighing pan steadily Place weighed loads centrally on the weighing pan (eccentricity errors are specified by EN 45501 standard, point 3.6.2.). Do not apply concentrated force (total load in one point). Avoid side loading, in particular side shocks. 10. DIAGRAMS OF CONNECTION CABLES Figure 6. Scale computer cable 14 Figure 7. Scale - printer cable (EPSON) 11. TECHNICAL SPECIFICATIONS For technical specifications of respective scales go to RADWAG website www.radwag.pl. 12. TROUBLESHOOTING Problem Cause Solution Power supply disconnected. Connect the power supply to the scale. Scale start-up fail. Battery discharged. No battery (not installed or installed incorrectly).

<7.4.t1> parameter set to value enforcing scale shut-

down after particular time interval. Connect the power supply to the mains, charge the battery. Check if the battery is installed correctly

(polarization). Go to <P7.Othr> menu, set <7.4.t1>

parameter to 'nonE' value. Weighing pan loaded during the start-up. Unload the weighing pan. Zero indication is displayed. Incorrect computer port set in parameter <5.1.1.Prt>. Enter < P5.ducE / 5.1.PC> submenu and set correct <5.1.1.Prt> parameter value. transmission Incorrect parameters for the selected computer port. Incorrect printout for continuous transmission. frequency Enter <P4.Conn> menu and set correct transmission parameters for the selected computer port. Enter < P5.ducE / 5.1.PC> submenu and set correct <5.1.3.Int> parameter value. The scale switches off automatically. During message displayed. the start-up, is

'LH'

Communication with the not computer established. 15 Incorrect printer port set in

<5.2.1.Prt> parameter. Enter < P5.ducE / 5.2.Prtr> submenu and set correct <5.2.1.Prt> parameter value. No printout on a scale-connected printer. Incorrect transmission parameters for the selected printer port. Enter <P4.Conn> menu and set correct transmission parameters for the selected printer port. Communication with the additional display not established.. Displayed mass unit does not comply with the scale data plate. No variable declared weighing printout project. in Enter <P6.Prnt / 6.2.GLP> submenu and declare variables that are to be printed. Incorrect additional display

<5.3.1.Prt>

in set port parameter. Enter < P5.ducE / 5.3.AdSP> submenu and set correct <5.3.1.Prt> parameter value. Incorrect transmission parameters for the selected computer port. Enter <P4.Conn> menu and set correct transmission parameters for the selected additional display port. Changed scale start unit in

<9.1.UnSt> parameter. Changed custom unit

<9.2.Unin> parameter. in Enter <P9.Unit / 9.1.UnSt> submenu and set unit complying with the scale data plate. Enter <P9.Unit / 9.2.Unin> submenu and set unit complying with the scale data plate. 13. ERROR MESSAGES

- E r r 2 -

Value beyond zero range.

- E r r 3 -

Value beyond tare range.

- E r r 4 -

Adjustment weight or start mass out of range (1% for adjustment weight, 10 for start mass).

- E r r 5 -

Battery error. Battery is damaged.

- E r r 8 -

Time of determining, adjustment process. the following operations exceeded:

taring, zeroing, start mass

- n u l l -

Zero value from converter.

- F U L L - Weighing range exceeded.

- L H -

- H i -

Start mass error, indication out of range (10% of start mass). Display range of total mass on scale display exceeded in 'Totalizing' mode.

- u L o -

Too low battery charge. The scale is about to shut down.

- E r r L o -

- Determined mass of single part in 'Parts counting' mode too small.

- Value of 'Min' threshold is greater than value of 'Max' threshold in '+/- control'

- Entered value of single part greater than maximum capacity in 'Parts counting'

- E r r H i -

- Entered value of 'Max' threshold greater than maximum capacity in '+/- control'

- Entered reference mass greater than maximum capacity in 'Percent weighing'

working mode. mode. mode. mode. 16 17

. RADWAG Wagi Elektroniczne R/A\D W, Toruriska 5, 26-600 Radom, Poland 1 Made in Poland (EU) Wwww.radwag.com Model: MA 50.X2.IC.A S/N: 123456 Max 50g d=1mg T max 160C Pmax 450W 100-120V AC 50/60Hz +10C / +40C Regional distribution center: RADWAG USALCC Tel +1305 651 3522/Fax +1 305651 3523, C

FCC ID:2AXRT-MAX (Contains FCC ID:2AHMR-ESP12F) us >

WiFi office@radwaqusa.com, ww.radwagusa.com LABORATORY EQUIPMENT 508359

RADWAG Wagi Elektroniczne Witold Lewandowski Oct 27th, 2021 Timco Engineering, Inc. 849 N.W. State Road 45 P.O. Box 370a Newberry, Florida 32669 USA Letter of Authorization We, the undersigned, hereby authorize Cho Hee Youn of ICR Co.,Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2AXRT-MAX including signing of all documents relating to these matters. Any and all acts carried out by Cho Hee Youn of ICR Co.,Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from RADWAG Wagi Elektroniczne Witold Lewandowski I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Sincerely, Piotr Ciepucha / manager

RADWAG Wagi Elektroniczne Witold Lewandowski Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AXRT-WTC Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Block Diagram Part list Schematics File Name MA X2_Blk MA X2_BOMs and Schematics by PCB MA X2_BOMs and Schematics by PCB The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

Exhibit Type External Photo Internal Photo Manual Test Set-up Photo File Name MA X2_Ext Photos MA X2_Int Photos MA X2_Mabual MA X2_Tsup Photos - 2021-1868 For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. Sincerely, Piotr Ciepucha / manager Rev 11/20/07

+48 48 3866 000 (phone)

+48 48 3850 010 (fax) export@radwag.com G Balances and Scales www.radwag.com ADVANCED WEIGHING TECHNOLOGIES Torunska 5, 26-600 Radom POLAND R/A\DW i) oO WTC family marking description Product name: WTC weighing scale Typ name: WTC xxx.yy Type description:

WTC family name xxx weighing range (in grams) (100 + 3500) yy option (1 - versions not introduced to legal metrology certification, may include a not certified load cell) Sample name according the above: WTC 600.1 Examples of scales within the family Reading accuracy in grams Scale name | Weighing range in grams WTC 200 WTC 200.1 0.001 or 0.0001 WTC 600 Hwre 600.1 0.01 or 0.001 We 2000 0.01 wre 2000.1 0.01 or 0.001

WTC 3000 we 3000.1 j i 4 a aa f= pit f +R 2 fi olf Cte ta 7 & October 29, 2021 Signature of authorized signer Date Piotr Cieptucha Certification specialist Printed name of authorized signer Job title of authorized signer Page 1 of 1 TIN (VAT No): PL7960000327 e