Ultrasonic
AM-ULM Ultrasonic Level Meter
Non-contact ultrasonic level meter for open tanks, sumps and channels, with a small blind zone and a Modbus output.
- Model
- AM-ULM
- Category
- Ultrasonic
- Outputs
- 4–20 mA, Pulse, Modbus RTU
- Lead time
- 7 working days; split and explosion-proof versions 15 working days
- MOQ
- 1 unit; 10 pcs for OEM branding
- OEM available
- Yes
Technical specifications
| Range | 0–15 m; blind zone 0.25–0.5 m depending on model |
|---|---|
| Accuracy | ±0.25% of full scale; resolution 1 mm |
| Beam angle | 8° typical |
| Process temperature | −40 to 80 °C standard |
| Protection and output | IP67; 4-20 mA, RS485 Modbus, 2 relays |
| Mounting | Flange, bracket or stilling well |
What it is not the answer for
Read this before asking for a price: one of these conditions is what turns a good meter into a bad installation.
- Heavy foam, dense steam, dust or condensing vapour that blocks the echo
- Heavily agitated surfaces or tanks with internal obstructions close to the beam
- Pressurised tanks outside the stated pressure range
Maintenance and service life
Clean the horn every 6–12 months in condensing or dusty service; foam and grease are the usual reasons the echo disappears. Re-check the blind-zone setting whenever the product level can rise near the sensor. No moving parts belong to the sensor itself.
Behind the instrument
How it is built and tested
Coil winding, the calibration bench, the plant floor — and an overseas customer's factory audit.
Applications
Where this model is used
Each application names a measuring point and the conditions that decide the selection.
Elsewhere in the range
Other models in Ultrasonic
The same category holds the models that solve the neighbouring problem, and the price difference is usually smaller than the cost of the wrong principle.
AM-ULM-B
AM-ULM-B Small Blind Area Ultrasonic Level Meter
Short-span ultrasonic level meter for shallow wells and tanks: 0–3 m, blind zone under 0.1 m, ±0.15 % and 1 mm resolution, 4–20 mA or Modbus.
AM-ULM-D
AM-ULM-D Ultrasonic Level Differential Meter
Two-probe ultrasonic differential level meter: 0–25 m difference range, ±0.5 %, two relays, 90–240 V AC or 12–24 V DC, 4–20 mA and Modbus.
AM-ULM-EX
AM-ULM-EX Explosion-proof Ultrasonic Level Meter
Explosion-proof ultrasonic level meter for hazardous areas: Ex db ia IIC T6 Gb, 0–30 m, ±0.5 %, 1 mm resolution, 4–20 mA and RS485.
Measuring point does not match the table above?
Send the medium, the pipe size and the output your control system expects. We answer with the principle that fits, or with the reason none of ours does.