Maintenance Q&AHow do I choose and install wireless vibration sensors?
Choose by frequency range, battery life, wireless range and ingress rating; installation needs no downtime.
What is wireless vibration monitoring, and is it reliable enough for critical machines?
Wireless vibration monitoring fits battery-powered sensors on equipment to collect vibration and temperature at regular intervals, sending data over industrial Bluetooth to a gateway and on to the cloud. DHMSCare sensors use industrial-grade Bluetooth 5.0 Class 1 with 60–80 m to the gateway inside a plant and 300 m line of sight, plus a repeater for another 50 m; sensors are IP69-rated and work in −40 to 80 °C ambient. DHMSCare watches critical machines with this system, and its alerts are accurate in 90%+ of cases.
How do I choose wireless vibration sensors for predictive maintenance?
Look at four parameters: a frequency range that covers common fault bands, long battery life, enough wireless range, and an ingress rating that survives the plant environment. The DHMSCare DT310 sensor covers 0–6000 Hz (±3 dB) and ±16 g, runs 5 years on its battery after activation, reaches 60–80 m to the gateway inside a plant on industrial-grade Bluetooth 5.0 Class 1, and is IP69-rated. DHMSCare delivers alerts accurate in 90%+ of cases on this hardware.
Are MEMS vibration sensors good enough to catch early bearing faults, or do I need piezoelectric accelerometers?
Yes, for trend monitoring: DHMSCare DT310 and DT311 MEMS sensors, chip-based accelerometers, measure 0–6000 Hz vibration, where bearing wear shows once it starts making impacts; the first surface wear, above 20 kHz, is beyond range. On slow shafts, tell us the shaft speed and DHMSCare confirms the right sensor first.
Online wireless monitoring or handheld data collectors: which is better for a plant with about 100 motors?
At about 100 motors, online wireless monitoring fits better: handheld collectors follow a manual route at low frequency and miss changes between readings. Each DHMSCare gateway connects up to 60 sensors, so a plant with 100 motors needs only a few gateways and can grow line by line. DHMSCare keeps every motor monitored around the clock, with alerts accurate in 90%+ of cases.
Do we have to stop the machines to install vibration sensors?
No. DHMSCare sensors bond to the bearing housing with industrial adhesive and pair with a touch of a phone, so the machine keeps running during installation. DHMSCare installs without downtime, so a plant can deploy while the line keeps producing.
