如何进行失重式喂料系统的零点校准？失重式喂料机，失重式喂料系统

失重式喂料系统‑零点校准操作步骤

Zero‑Point Calibration Procedure for Loss‑in‑Weight Feeder

中英文对照，可直接用于操作手册SOP

⚠️重要前提：零点校准用于消除称重传感器零点漂移；零点校准必须料斗完全空载。

一、校准前确认 Pre‑Calibration Check

中文

1. 喂料机上电充分预热15‑30分钟，传感器温度稳定。
2. 停止喂料输出，螺杆停止转动。
3. 清空称重料斗，内部无任何物料、砝码、工具、杂物。
4. 检查料斗无机械刮蹭、不碰机架；软连接波纹管无拉扯、挤压料斗，无外力施加到称重组件。
5. 尽量关闭周边振动源（挤出机、风机、破碎机），减少振动干扰。
6. 避免气流直吹料斗，气流会产生虚假载荷。

English

1. Power on feeder and warm‑up for 15‑30 min for thermal stabilization of load‑cell.
2. Stop feeding, screw stand‑still.
3. Fully empty weighing hopper: no material, weights, tools or debris inside.
4. Ensure no mechanical friction between hopper and frame. Flexible bellows shall not pull or compress weighing assembly.
5. Shut down nearby vibration sources where possible.
6. Avoid direct air flow blowing onto hopper.

二、零点校准详细操作步骤 Step‑by‑Step

1. 进入喂料控制器操作界面，打开【校准Calibration】菜单，选择【零点校准 Zero Calibration】。

   部分设备叫：归零、零点设定、Auto‑Zero。

2. 系统会提示确认料斗已经清空。再次目视确认料斗内部完全空载。

3. 确认后系统开始采集重量信号，等待读数稳定（重量数值不再大幅度跳动）。

   如果数值持续跳动：说明存在振动、机械干涉，此时不能确认零点，先排除故障。

4. 读数稳定后，确认执行零点；控制器把当前空载状态设置为零点，重量显示变为0。
5. 校准完成，退出校准菜单，回到运行界面。观察空载重量读数，应当稳定在0附近（允许极小的尾数漂移）。

English

1. Enter controller menu → Calibration → Zero Calibration (Auto‑Zero).
2. Confirm hopper is totally empty as prompted. Double‑check by visual inspection.
3. Controller starts sampling weight signal. Wait until weight reading becomes stable without heavy fluctuation.

   If reading keeps jumping: stop calibration, eliminate vibration or mechanical friction first.

4. Confirm to execute zero. Controller sets current empty‑hopper status as zero reference, weight reading resets to zero.
5. Exit calibration menu. Verify empty‑hopper reading stays near zero with minor tolerable drift.

三、零点校准完成后验证 After‑calibration Verification

中文

1. 空载静置几分钟，观察重量读数，不应出现持续单向漂移。
2. 可以轻轻用手短暂轻触料斗，松开后读数应回到0附近；如果回不到零，说明存在机械卡滞、干涉，需要处理机械故障，重新再做零点。
3. 零点校准完成后，建议再做一次跑料测试验证实际流量偏差。

English

1. Keep hopper empty for several minutes; weight reading shall not drift continuously in one direction.
2. Gently tap hopper briefly, release; reading shall return near zero. If not, mechanical binding exists, fix mechanical problem then redo zero calibration.
3. After zero calibration, it is recommended to perform run‑off test to verify actual feeding accuracy.

四、什么情况下执行零点校准 When to perform zero calibration

中文

• 设备开机后；
• 料斗、搅拌、传感器拆装更换、受到撞击；
• 料斗彻底清机完成后；
• 环境温度大幅变化；
• 空载状态下控制器显示明显零点偏移。

注意：不需要每班次反复零点校准；零点漂移大优先排查机械、振动问题。

English ‑ After power‑on ‑ After hopper / agitator / load‑cell replacement, disassembly or mechanical impact ‑ After full hopper cleaning ‑ Large ambient temperature change ‑ Obvious zero offset under empty‑hopper condition

Note: Do not perform zero calibration every shift blindly. Investigate vibration & mechanical issues if zero drifts frequently.

五、禁止操作 Prohibited Operations

中文 ❌料斗内有物料时执行零点校准，会造成**性系统流量偏差。 ❌设备振动大、读数跳动时强行确认零点。 ❌在校准过程中触碰、挤压称重料斗。 ❌带电插拔称重传感器信号线。

English ❌Do NOT run zero calibration with material inside hopper, causes permanent systematic flow offset. ❌Do NOT confirm zero while reading is jumping due to vibration. ❌Do NOT touch or squeeze weighing hopper during calibration. ❌Do NOT disconnect load‑cell cable under power‑on status.

简短英文摘要（贴机台提示）

Zero‑Point Calibration Steps Warm‑up feeder, empty hopper completely, eliminate vibration and mechanical friction. Enter zero calibration menu, wait for stable weight reading and confirm zero. Verify reading returns to zero after gentle hopper touch. Never calibrate zero with material inside hopper.