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Nominal Diameter
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DN15-DN400
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Material
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Nominal diameter
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Nominal diameter ≥DN50: measuring tube body: carbon steel (stainless steel at the sensor);
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Stainless steel 304, stainless steel 316 can be customized;
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Implementation Standard
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GB/T32224-2020
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Temperature Range (℃)
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Nominal diameter
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Temperature Difference Range (k)
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0-85 (heat gauge starting temperature difference 0.2K)
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Minimum Pairing Temperature Error (℃)
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±0.1
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Maximum Allowable Working Pressure Mpa
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1.6MPa, optional 2.5MPa.
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Accuracy Level
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Level 2
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Temperature Sensor Type
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PT1000, DIN/EC751B
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Protection Level
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IP68
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Working Power Supply
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Powered by 3.6V lithium battery, one battery can work continuously for more than 6 years
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DC8-24V (requested when ordering)
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AC220V, 50HZ (optional power adapter, requested when ordering)
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Working Environment
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Environment Class A Class B/C/D
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Power Consumption
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Standard state <30UA, can work continuously for more than 20 years
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Communication data
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Optical Interface
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Baud rate 9600bps, 4800bps, 2400bps, 600bps, 300bps optional, default is 9600bps S; Using GB/T26831 protocol
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RS485/M-BUS
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Baud rate 9600bps, 4800bps, 2400bps, 600bps, 300bps optional, default is 9600bpS; Transmission distance ≤ 150m; GB/T26831
protocol, CJ/T188 protocol, ModbusRTU protocol optional, automatic identification of communication protocol,
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Wireless Communication
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Narrowband Internet of Things (NB-lot)
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4G network communication
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Local Display
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Dual-line display includes 9-digit cumulative amount, 6-digit instantaneous flow, and supply and return water temperature,
temperature difference. Accumulated effective running time.
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Display Resolution
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Heat 0.1kw.h, cumulative flow 0.001㎡: temperature 0.01℃; temperature difference 0.01K
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Storage Temperature
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.-25~55
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Data Storage
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Using ferroelectric storage parameters, store heat, cumulative flow and relative time by month; automatically store the cumulative
flow of the first 31 days of the previous 32 months
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Pressure Loss Level at Common Flow Rate
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Nominal diameter
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Temperature Sensor Signal Line Length (m)
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Nominal diameter
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Instrument Installation Position
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Water supply (needed to be proposed during return water installation)
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