The U1000MKII-HM is an ultrasonic clamp-on thermal, heat/energy meter that uses ultrasound to measure flow rate and PT100 temperature sensors to measure flow and return temperatures. The U1000MKII-HM displays energy rate and totalised energy with pulse output and communication options, so it can be used as a standalone meter or as an integral part of an Automatic Monitoring & Targeting System (AM&TS) or Building Energy Management system (BEMS).
The instrument is simple to install by connecting power and entering the pipe inside diameter, adjusting the sensors and clamping-onto the pipe with no specialist skills or tools are required.
PLEASE NOTE - The U1000MKII-HM is available in several options, please contact a member of the BIS sales team to discuss your requirements.
Features
- Simple to use
- Clamp-on flow and temperature sensors
- Rate and totalised heat/energy demand
- Modbus and Mbus communication
- LCD with backlight display
- Compact size
- Heat/energy metering in energy management or building services applications for LTHW or chilled water circuits
- Recommended for hot water < 85 °C, chilled water and chilled water with glycol
- Pipe materials - Steel, stainless steel, plastic and copper
Technical
Measurement technique Ultrasonic transit time method for flow measurement and PT100 Class B 4 wire for temperature measurement. Turn down ratio: 200:1
Heat meter standard The heat/energy calculation is designed to comply with EN 1434 section 6
Accuracy +/- 1 % – 3 % of flow reading for > 0.3 m/s
Flow velocity range 0.1 m/s – 10 m/s
Pipe range Available in 2 option, 22 mm to 115 mm and 125 mm to 180 mm OD. Please note pipe size is dependent on pipe material and internal diameter
Water temperature range 0 °C – 85 °C
Temperature sensors Clamp-on PT100 Class B 4 wire, range 0 °C – 85 °C, resolution 0.1 °C. Minimum delta T is 0.3 °C
Output Pulse or frequency. Pulse for volume flow and energy in kWh (BTU). Frequency for flow rate. The pulse output can be configured as a loss of signal or low flow alarm
Modbus communication Optional Modbus RTU slave, RS485 serial link hardware layer. Energy, power, temperature and flow. Modbus connection cable is 1 m
External power supply 12 V – 24 V +/- 10 % AC/DC at 7 watts per unit. Optional plug in 12 V power supply
Electronics enclosure IP54
Input/output cable 5 m x 6 core for power in and pulse out
Dimensions 250 mm x 48 mm x 90 mm (electronics + guide rail)