UBM21 : Ultrasonic Thermal Energy Meter

UBM21 : Ultrasonic Thermal Energy Meter

Model : UBM21
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Description

Ultrasonic Thermal Energy Meter

The UBM21 ultrasonic thermal energy meter provides abundant capabilities for accurate thermal energy
measurement of a liquid-based thermal energy production / transferring system. It is the 3rd generation energy meter from Omicron. Compared with its predecessors, the 3rd generation offers better performance and a richer feature set, all at a lower price.

The UBM21 system is consisted of the high performance ultrasonic flowmeter USF300 and a pair of standard PT1000 temperature sensors. The ultrasonic flowmeter is based on our cutting-edge clamp-on flow measurement technology, which is capable of measuring the flow from outside of a pipe accurately and reliably. Due to the non intrusive nature of this technology, there is no pipe cutting, no moving parts, no pressure drop, no leaks and no risk of contamination. In addition, the installation is simple and requires no special skills or tools.

 

 

Additional information

Repeatability

Better than 0.2%
Accuracy

For flow measurement: ±1% of reading, plus ±0.006m/s (±0.02ft/s) in
velocity
Response Time

0.5s. Configurable between 0.5s and 99s
Velocity

-16 ~ +16m/s (-52 ~ +52 ft/s), bi-directional
Display / Keypad

LCD with backlight. 2 x 20 letters. 4 x 4 tactile-feedback membrane
keypad. Displays instantaneous energy rate, total energy (positive, negative and net), temperatures, flow rate, time, analog inputs, etc.
Units

English (U.S.) or metric
Signal Outputs

Current output : 4-20mA isolated output for energy rate, flowrate,
velocity or sound speed.
Impedance 0-1k. Accuracy : 0.1%
OCT output : isolated Open Collector Transistor output. Up to 0.5A load
Relay output : 1A@125VAC or 2A@30VDC
Can be programmed as pulse signal for energy/flow totalization; ON/OFF
signal for relay drive or alarm drive; batch control
Sound alarm
Temperature

RTD interface: two temperature channels that can accommodate two
PT1000 3-wire temperature sensors for thermal energy measurement.
Analog Inputs

one channel of 4-20mA input. Can be used for temperature, pressure and level
Recording

Automatically records the totalizer data of the last 128 days / 64
months / 5years Optional USB data logger available upon request
Communication

Isolated RS-485 with power surge protection. Supports the MODBUS
protocol Optional wireless module (GPRS/GSM/RF) for remote monitoring.
Enclosure

Protection Class: IP65 (NEMA 4X) weather-resistant.
Dimension : 230mm x 150mm x 75mm (9” x 5.9” x 3”)
Liquid Types

Virtually all commonly used liquids (full pipe)
Liquid Temp

-40°C ~ 100°C or -40°C ~ 155°C, depending on transducer type

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