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Four E's Scientific WB301 Operating Instructions Manual

13l and 24l water bath
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Operating Instructions
13L and 24L Water Bath
WB301
WB401

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  • Page 1 Operating Instructions 13L and 24L Water Bath WB301 WB401...

  • Page 2: Table Of Contents

    Contents Declaration of Conformity 1. Safety Instructions 2. Unpacking 3. Installation 4. Correct use 5. Operation 6. Calibration 7. Faults 8. Maintenance and Cleaning 9. Technical Data 10. Warranty Please read the operating instructions in full before starting up and follow the safety instructions. The appearance and specifications are subject to change without notice.

  • Page 3: Declaration Of Conformity

    PREFACE Welcome to your Water Bath operating instructions. Users should read this manual carefully, follow the instructions and procedures, and be aware of all cautions when using this instrument. DECLARATION OF CONFORMITY This water bath complies with the relevant standards of 2014/35/EU EN61010-1 2014/30/EU EN55011/B, EN61326-1 YY91037-99...

  • Page 4: Safety Instructions

    1. SAFETY INSTRUCTIONS Read the operating instructions in full before starting up and follow the safety instructions. Ground the socket before use. • Water must be filled into the chamber before power-on. • Avoid operating the bath without water. • The symbols below are marked on the equipment and in •...
  • Page 5 Box contents Model WB301 WB401 Water bath Transparent lid Base tray Power cable USB Type-A cable Operating manual Note: The USB port at the back allows for software updates. For more information on updating the software, please contact your local distributor or the manufacturer.
  • Page 6 WB301 WB401 ① ① ② ② ③ ③ ④ ④ ⑦ ⑥ ⑦ ⑥ ⑤ ⑤ ⑩ ⑨ ⑩ ⑨ ⑧ ⑧ ① Transparent lid ⑥ Drain port ② Stainless-steel chamber ⑦ Handle ③ LED display ⑧ USB port ④ Water bath ⑨...

  • Page 7: Installation

    3. INSTALLATION 3.1 Assembly of the equipment and components The water bath has three main components, the bath, the lid and the base tray. The base tray fits into the bath with the feet downward so that it creates a gap between the bottom of the chamber and the tray.

  • Page 8: Correct Use

    4. CORRECT USE 4.1. Avoid operating the bath without water • Dry-start runs may negatively affect the service life of the equipment, therefore avoid running the bath without water. • The bath features dry-start protection, which automatically shuts off heating if the water level is too low. In this instance the bath will display “...
  • Page 9 4.3. Emptying the baths Before emptying any bath, disconnect the device from the power supply and pull out the plug. Then allow the water temperature to fall to a safe level and take reasonable precautions to prevent accidental spillage. The drainage operation is as follows： 1.

  • Page 10: Operation

    4.4. Using transparent lid • When the setting temperature is above 60°C , use the lid to maintain proper temperature control and ensure that the water temperature reaches the set point. • The lid will also prevent excessive evaporation that requires the bath to be filled more often and will save energy.
  • Page 11 ① Preset Programs ⑥ ℉ indicator ② Set ⑦ Run/Stop ③ ℃ indicator ⑧ Timer ④ Heating Indicator ⑨ Over-Temperature Alarm Key ⑤ Alarm Indicator ⑩ ℃/℉ switch 5.2. Display The LED displays indicate the system's status: Heating Off: • Left display: Displays " "...
  • Page 12 5.3 Run/Stop Key Operation: Press to Run/Stop heating. Example Scenario: Note: The parameters used in the examples throughout this manual are for demonstration purposes only. Parameters: • Current Temperature: 37.0°C • Set Temperature: 50.0°C Operation Display Remarks 37.0 ＆ The Current Temp and Set Temp 37.0 50.0 37.1...

  • Page 13: Countdown Timer

    Operation Display Remarks 37.0 ＆ • Tap or tap and the current Set Temp will flash, ready to be adjusted. 42.5 50.0 • Adjust the values with . Hold to scroll through digits more quickly. • Tap to save and confirm the new value. 50.0 •...

  • Page 14: Continuous Operation

    When the bath is heating and the countdown timer is adjusted, the new setting takes effect immediately. If the current bath temperature is within ±0.3°C of the set temperature, the countdown timer begins. Otherwise, the timer starts once the bath temperature reaches the target range. Continuous Operation •...
  • Page 15 Switching between Timer to Continuous Mode Operation Display Remarks OFF ＆ 37.0 to enter into Timer Setting. 02:45 to cycle to 02:45 and tap to confirm. Note: Switching from Continuous Mode to Timer Mode involves the same process as specified above. 5.6 Configuring the Presets The bath has 3 presets: P1 P2 P3.
  • Page 16 Setting the Preset Parameter Values Operation Display Remarks • Temperature flashes and can be adjusted and set. ＆ 37.5 Hold • For this example, we’ll change the Set Temp from 37.5 to 42.5°C. 37.5 42.5 From here, if you tap , then these ＆...
  • Page 17 5.8 Switch between Fahrenheit (°F) and Celsius (°C) Units The temperature unit indicator will illuminate °C for Celsius and °F for Fahrenheit. Switching the units Operation Display Remarks °F or °C 5.9 Setting the Over-temperature Alarm You may set a cutoff value that will be the maximum temperature the bath is allowed to reach before power cutoff occurs.
  • Page 18 The alarm can be turned off by following one of the methods below: • Turn off the power and the alarm shuts off. Restart the machine once the water bath temperature is lower than the over-temperature setting. • Add some cold water so that the water temperature rapidly drops below the over-temperature setting, and the alarm will shut off.

  • Page 19: Calibration

    be quite high. To avoid such conditions, ensure the water level is at an adequate height of at least 30mm. 6. CALIBRATION 6.1. Calibration condition To ensure accurate calibration results, ensure the following: 1. The accuracy of the temperature probe used for calibration shall be more than 10 times that of the water bath display (which has a precision of 0.1°C).
  • Page 20 6.2. Dual Point Calibration Our instrument employs two-point calibration, with the Low Calibration Point between 5-50°C (40°C recommended), and the High Calibration Point between 50-99.9°C (80°C recommended) Calibration Procedure 1. Fill your water bath to a height of at least 35mm (recommended 50mm) 2.
  • Page 21 Low Calibration Point High Calibration Point Apply a Set Temperature Apply a Set Temperature under 50 °C (Recommended over 50 °C (Recommended Set Temp: 40 °C) Set Temp: 80 °C) Start heating and let the bath Start heating and let the bath temperature stabilize at the set temperature stabilize at the set temp for 30 minutes...

  • Page 22: Faults

    7. FAULTS Error code Cause Solution Check the temperature sensor Temperature sensor 1 or motherboard for a short 1 short-circuit circuit fault. Check if the sensor 1 is well Temperature sensor connected. 1 open-circuit Check the temperature sensor Temperature sensor 2 or motherboard for a short 2 short-circuit circuit fault.

  • Page 23: Maintenance And Cleaning

    Error code Cause Solution 1. Check if the low calibration point or high calibration point is within the required range. 2. Check if the temperature difference between the one Calibration temperature not measured by a thermometer within the required range and the one measured on the water bath is more than 10°C (If it is, there is issue on the...

  • Page 24: Technical Data

    9. TECHNICAL DATA Model WB401 WB301 Reservoir Capacity 13 L 24 L Heating temperature RT+5°C to 99.9°C RT+5°C to 99.9°C range Permissible ambient 10-35°C 10-35°C temperature Over temperature cut-off Dry-start protection Temperature stability ±0.3 °C ±0.3 °C Display resolution 0.1 °C 0.1 °C...

  • Page 25: Warranty

    10. WARRANTY We guarantee that our scientific instruments adhere to the most rigorous engineering and quality standards. This instrument is warranted to be free from defects in materials and workmanship under normal use and service, for a period of 12 months from the date of dispatch. The warranty is extended only to the original purchaser.
  • Page 26 Date: 2024.10.28 Version: V1.0...

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