DIRECT-READING ELECTRONIC CRANE SCALE WITH RF REMOTE CONTROLLER

TYPE APPROVAL CERT. NO.:PA 2026F115-13

HEBEI YTK WEIYE ELECTRONIC TECHNOLOGY CO., LTD. (MANUFACTURER)

PREFACE

Thank you for using the direct-reading electronic crane scale manufactured by our company. If you are using this crane scale for the first time, please read this instruction manual carefully before operation. Please feel free to contact our company via phone or email should you have any valuable suggestions after use.

OVERVIEW

The YTK series direct-view electronic crane scale consists of lifting shackles, high-precision sensors and a weighing main board. It adopts 5-digit 1.2-inch (40 mm character height) ultra-bright digital display for clear and legible readings.Equipped with digital filtering against jitter, vibration and swinging, it delivers stable readings with a stabilization time of less than 8 seconds. It supports instant tare, zero setting, data review, data hold and power-saving functions.With low-power-consumption design, the fully-charged battery enables continuous operation for more than 100 hours, and it is fitted with a battery over-discharge protection circuit. Battery level (percentage) is displayed at power-off, allowing you to check battery status timely and arrange proper charging. Other features include RF remote control with a maximum remote distance of 100 meters. Parameters such as division value and full-scale value can be modified without recalibration. Stabilization speed is adjustable to adapt to various working conditions. It is provided with serial port output, compatible with wireless large-screen display, wireless PC connection andwireless printing instruments. It is suitable for lifting-weighing applications such as foundry and commodity trade.

OPERATION INSTRUCTIONS

Panel Key Description

Power / Zero: Zero,Tare, Power On, Power Off.

In setting interface: short press to confirm, long press to return.

Query: In weighing interface, short press for query; long press to toggle red-green display. In setting interface, short press 0-9 to add digits; switch menus in SET interface.

Press the Power key and Query key at the same time to enter settings.

Indicator Description

Stable: Data stability indicator; flashing means hold status.

Tare: Tare indicator lamp.

Charge: Charging indicator lamp.

Remote Control Button Instructions

\*: Short press to query; long press to toggle red/green display. In setting mode, short press to enter numbers 0-9, long press to shift position; on the SETscreen, switches between menus.

→0←: Zeros the scale during weighing; confirms in “V"setting mode.

:.: Accumulates total during weighing; shifts position in setting mode.

H: Holds the reading during weighing.

“→0← "and“”: pressed together Enter SET mode.

“→0←" and " H": pressed together Powers off on the weighing screen; returns from the SET screen.

MAIN TECHNICAL PERFORMANCE

1. Adopting ≥-△conversion technology to achieve 24-bit loss-free code performance. The main board accuracy is 1/10000. Arbitrary weighing and arbitrary division values are adjustable.

2. Operating temperature range: - 4 0 ~ + 8 5 ^ { \circ } C

3. Maximum operating current: 60 mA; power-saving mode: 18 mA

4. Infrared remote-control distance: 30 m

5.Stabilization time: less than 8 seconds

6.Safe overload: 150% F.S

7. Ultimate overload: 200% F.S

8. Accuracy: ClassIII

OPERATION & MAINTENANCE

\*\*Maintenance for New Scale\*\*

--- Charge regularly (once every3 months); keep moisture-proof and water-proof, maintain dry environment; avoid severe impact and squeezing.

\*\*Preparation for Operation\*\*

--- Fully charge the battery in advance; check whether fastening screws and connectors are loose before weighing, and perform regular inspection afterwards; verify that the safety cotter pins of hook and lifting ring are properly installed.

\*\*Correct Operation\*\*

Power-on: Long-press the ON/OFF key and release after the buzzer stops. It displays UER-X.X, then battery voltage X.XV, and performs self-test counting from 0 to 9 at 1-second intervals. After self-test completion, it enters the weighing mode.

Operation: After self-test, the scale automatically enters zero-weighing state. Hang the object for weighing. When the reading stabilizes, the buzzer beeps for 0.5 s as prompt. Read the value after the stability indicator lights up.

ccumulation: Press the remote control : : key to accumulate current weight. The weight to be accumulated shall exceed 20 division values. Accumulation is allowed only when the stability indicator is on. The second accumulation can be performed only after weight falls within 2 division values.

Accumulation Reset: Press the remote control \* key to display accumulation count N=XX. Press remote-control 0 and \* keys simultaneously to clear accumulated data.

Accumulation Query: Press remote-control \* key to show accumulation count N=XX. Press query key to display high-three-digit HXXX; press query key again for low-three-digit LXXX. Press \* key to exit.

Example: For 20 accumulation times and total weight 325601 kg, display shows N=20, H325, L601.

Low-voltage Indication: Flashing or dimmed digits indicate battery voltage below 6.3 V. The unit will auto-power-off in 10 minutes.

Power-off: Hold ON/OFF zero-setting key for 3 seconds, or press remote-control 0 and H keys together to power off. It shows battery percentage PBTXX, then OFF for shutdown.

Charging: Recharge timely when battery capacity <15% before further use, to avoid over-discharge and battery life reduction. Recommended charging time: 6-8 hours.

SIMPLE TROUBLESHOOTING & ERROR MESSAGES

1. \*\*ERR01\*\* : Accumulation error. Accumulation conditions not satisfied. Possible causes: repeated accumulation or unstable reading.

2.\*\*ERR02\*\*: Password error.

3. \*\*ERR03\*\* : Calibration error. The loaded weight for calibration is too small.

4.\*\*OUER\*\* : Overload.Weight exceeds full-scale value plus 9 division values.

\*\*No Display after Power-on\*\*

1. The battery needs charging.

2. The battery is damaged and must be replaced with a new one.

\*\*Battery Cannot Be Charged\*\*

1. Check whether the charger works properly. Normal output of charger: 7.6V-8.0V, 1000 mA.

2. Check whether the battery is damaged. The battery voltage shall be above 5.5V after full charge. Replace the battery if voltage is below 5.0V.

PARAMETER SETTING AND CALIBRATION

SUPPLEMENTARY INSTRUCTION

\*\*Wiring Instructions (Pay attention to positive and negative polarity, marked on PCB board) \*\*

--- J1: Charging power input. For 6V lead-acid battery, charger output shall be 7.6V; for 7.4V lithium battery, charger output shall be 8.4V.

---J2: Battery connection terminal.

---J3: Sensor connection. E+ Sensor power positive; S+ Sensor signal positive; S- Sensor signal negative; E- Sensor power negative.

---J4: Serial port output. Compatible with wireless large-screen display, wireless indicator and Bluetooth module.

---J5: Indicator lamp socket. Red LED1-charging indicator; Red LED2-tare indicator; Green-stability indicator.

---J6: Auxiliary indicator lamp (optional).

---J7: Power-on /zero-setting key socket.

---J8: View-key socket. Red-green display switch on main board by long-pressing view key.

MAINTENANCE & PRECAUTIONS

1. Charge the battery once per month if the unit will be left unused for a long period.

2. Do not exhaust battery power completely before recharging, otherwise battery service life will be shortened.

3. Use original charger only. Do not apply over-voltage charger, or battery protection circuit will be burnt out.

4. Check all component screws for looseness before operation.

5. Avoid dropping, squeezing or impact to the instrument, otherwise weighing accuracy will be affected.

6. Do not hang loads directly on instrument housing. Remove lifting hook from goods after weighing.

7. Never operate under overload condition; overload will cause permanent damage to load cell.

8. Inspect lifting hook, shackle and connecting fittings regularly to prevent danger caused by excessive wear.

9. Calibrate the crane scale periodically according to operating frequency, at least once per year

★ Important Notes ★

Storage battery features self-discharge. Even if the crane scale is idle, charge the battery periodically to prevent damage caused by over-discharge. Recommended charging interval: once every one month (no more than two months).

PURCHASE NOTES

1. Check whether all accessories are complete upon receipt of goods.

2. This product has been calibrated multiple times before delivery. The calibration weights are inspected by Hebei Institute of Metrology and meet M1-class standard.

3.This product is a Class Ill weighing instrument in accordance with national standards, with error less than one division value. If the user sets the division value smaller than the requirement for national Class Ill standard, slight error shall be regarded as normal phenomenon.

4. Causes of Errors for Electronic Crane Scale

5. How to verify the accuracy of the crane scale: Before using this product, perform a weighing test with an object of known exact weight and comparethe test results. If you have any concerns, please contact our customer service or after-sales department for adjustment

6. If there is a reading discrepancy between this product and your original weighing tool, you may take the following actions:

① Contact customer service for adjustment

② Send the unit back to our factory for adjustment

7. Errors of the electronic crane scale can be corrected by calibration, which can be operated by yourself. If needed, please contact customer service or after-sales support for operation guidance.

8. Thank you very much for your support and recognition! We fully understand that it is critical for customers to get in touch and obtain solutions promptly when problems occur. Therefore, we are committed to delivering efficient and high-quality services to ensure your requirements are met in a timely manner.

Should you encounter any issues or have questions during operation, please feel free to contact us at any time. Our customer service team will wholeheartedly offer assistance and support to guarantee proper resolution of your problems.

Thank you again for your trust and support. We will keep improving our service quality to bring you better products and user experience.

QUALITYFIRST SUCCESS THROUGH QUALITY

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