ShaoJia - CR-500E
This page is written for HiBean users. It focuses on how to use CR-500E in the app and explains a few behaviors that might look “unexpected” at first.
Safety note: CR-500E is a high-temperature machine. Always follow the manufacturer’s safety guidance and never leave the machine unattended while it’s running.
Connection
- Connection type: BLE (Bluetooth Low Energy)
- Platforms: Android / iOS / macOS / Windows
In HiBean’s device discovery page, choose ShaoJia BLE and follow the pairing steps.
Drum / Fan / Heater Interlock (Important)
On CR-500E, some controls are interlocked. Remember this:
The drum must be running for fan and heating to take effect.
What you may notice:
- If the drum is off, the app will treat the fan as off (even if a fan value is set).
- Turning fan ON may automatically turn the drum ON (expected behavior).
- Turning ignition/heating ON (including Preheat) may also automatically turn the drum ON.
- Turning the fan OFF does not automatically turn the drum OFF.
- Fan control is in 5% steps (hardware granularity).
Wind Pressure Balance (Recommended)
CR-500E reports wind pressure feedback. HiBean provides Wind Pressure Balance to help keep airflow stable during roasting.
What it does
Set a Target Wind Pressure (Pa). The app will automatically fine-tune the damper to keep the measured wind pressure close to the target.
How to use
- In the roasting control panel, open Wind Pressure Balance / Target Wind Pressure.
- Set the target value.
- Enable the switch.
Notes (All expected)
- If the fan is currently off, enabling the feature will first turn the fan on (and may start the drum).
- Adjustments happen in 5% steps. Near the target, the app may reduce adjustments, so you may see “no movement” for a while.
- The feature pauses when the drum stops, and resumes after the drum starts again.
- For manual fan control, disable Wind Pressure Balance first (otherwise auto control will override manual tweaks).
Preheat
If you preheat before charging, use Preheat / PID Auto Heating in the app.
- It heats towards your target temperature and can hold for a period.
- When you start preheat, the app will perform necessary linked actions (for example, starting the drum and enabling ignition/heating).
Force Cooling (Recommended finish step)
After roasting, use Force Cooling:
- Firmware automatically turns drum + fan ON and heating OFF until bean temperature drops to the target temperature.
- Manual controls (heater/fan/drum) may be temporarily unavailable during the process.
- Force cooling runs on the device side and can continue even if the app is closed; for safety, stay with the machine while it’s running.
Over-temperature Alarm
If an over-temperature alarm occurs, firmware will shut down heating and run cooling (drum/fan) to help reduce temperature.
Recommended steps:
- Stop operations and follow the manufacturer’s instructions.
- Power off and let the machine cool down naturally.
- Make sure the exhaust/ventilation path is clear before powering on again.
- If the app still shows the alarm, tap Reset in the error dialog (if available for your device).