How to operate the fetal heart rate correctly? -Huaqiang Electronic Network

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**User Guide for Fetal Heart Rate Monitor** 1. Open the battery cover of the fetal heart rate monitor, insert the appropriate batteries, and connect the earphone to the host's audio port. 2. Turn on the power button and check the indicator light to determine the current operating mode. 3. The expectant mother should locate the fetal position and find the optimal spot for detecting the fetal heartbeat. Apply a suitable amount of ultrasound gel evenly on the probe’s acoustic surface before placing it on the pregnant woman’s abdomen to obtain the clearest fetal heart signal. 4. Adjust the volume and calculate the correct fetal heart rate using the device. 5. After completing the operation, turn off the device and gently wipe the probe with a soft cloth to maintain its condition. 6. Do not attempt to open the internal components of the device without proper authorization. If repairs are needed, always consult a qualified engineer to prevent damage to the internal precision electronics. 7. Ensure the batteries are installed correctly to avoid short circuits. If the device is not used for an extended period, remove the batteries to prevent leakage or corrosion. 8. Protect the fetal heart rate monitor from water exposure and avoid using it in environments with flammable gases to prevent potential explosions. 9. Handle the device with care to avoid dropping or colliding it. Keep it away from sharp objects and high-frequency surgical equipment, as well as strong electromagnetic sources like mobile phones. 10. Store the fetal heart rate monitor in a cool, dry place to ensure its longevity and performance. This guide provides clear instructions for safe and effective use of the fetal heart rate monitor. Always follow these steps to ensure accurate readings and the safety of both the user and the device.

MCCB with Earth Leakage Protection(ELCB) TRE Series

TREF, MCCBs with earth leakage protection

Independent power supply with build-in power source,directly draws power from the incoming end to avoid the risk of protection function failure caused by external power supply failure.
● Overload protection
● Short circuit protection
● Isolation
● Earth-Leakage Protection
● Used in residential building, non-residential building, industry, energy and infrastructure

Earth-leakage protection is a residual current protection based on current measured by a rectangular sensor encompassing the three phases of the three phases and neutral.

mccb with earth leakage protection,circuit leakage protection,Earth Leakage Breaker,3phase Elcb,Elcb 200a

ZHEJIANG QIANNA ELECTRIC CO.,LTD , https://www.traner-elec.com