Flanged Cast Iron Ultrasonic BTU Meter (DN50 & above)

Features

- Flow sensor: high accuracy ultrasonic flow meter.

- Temperature sensor: 2 Nos PT1000 mated for high accuracy.

- Calculator: LCD display, powerful functions, IP68. Detachable from body.

- M-bus / Modbus protocol

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Description

The BTU meter comprises of an ultrasonic flow sensor and two temperature sensors, base on flow rate and differential temperature of supply / return water to calculate the thermal energy consumption. The flow sensor uses ultrasonic flow measuring technology which measures accurately, and not affected by iron rust contained in the flow and external magnetic field. The meter body is made of cast iron, fabricated by hard mould forging, CNC machines, features with good mechanical strength and high accuracy of dimension. Long-term life cycle, stability and accurate operation of the BTU meters are guaranteed. The temperature sensors use PT1000 platinum resistance matched temperature sensing elements to achieve high-accurate temperature measurement in conjunction with a high-accurate AD circuit. The MCU (Microprogrammed Control Unit) selects the MSP430 series ultra-low power microprocessor from American Tl Company, features with strong functions, low power consumption and strong antielectromagnetic interference capability. With self-diagnosis, fault display and power-loss data memory function, the ultrasonic BTU meter will display error code and store current data automatically in case of sudden failure. The BTU meter is equipped with LCD screen, showing data completely and accurately in convenient and fast way. Real-time built-in clock is used for date recording and display. The BTU meter features with splittable structure (calculator can be removed from meter body and fixed in other location if necessary), protection class IP68, convenient reading, and single button operation.

Reliable for various working environment by: metal body, water proof calculator, shielded signal cable prevent from biting of rats.
High-quality fully enclosed ultrasonic element ensure the accuracy and stability of flow measurement.
Measuring and displaying thermal energy consumption.
Displaying water supply/return temperature.
Displaying differential temperature of supply and return water.
Displaying current flow rate.
No mechanical moving parts, free from possible impact of poor water quality, low maintenance costs.
Low minimum measurable flow rate.
M-BUS / Modbus interface for remote reading function. RS485 optional.
Automatic error diagnosis function to ensure safe and accurate operation.
Can be mounted on supply pipe or return pipe, (specify when ordering).

Specification

Size (mm)	50	65	80	100	125	150	200	250	300
Accuracy grade standard	GB/T32224-2015
Flow sensor
Maximum flow rate	30	50	80	120	200	250	500	800	1200
Optimal flow rate	15	25	40	60	100	125	250	400	600
Minimum flow rate	0.6	1	1.6	2.4	4	6	10	16	24
Max. working pressure	16 Bar (231 PSI)
Max. pressure drop	0.25 Bar (36.2 PSI)
Meter body material	Cast steel (stainless steel)
Temperature sensor
Sensing Element	Pt1000
Temperature measurement range	4~95^。C (over 100^。C needs to be customized)
Signal cable length	3m (6m and 10m optional)
Probe fixing	SS thermowell
Calculator
Differential temperature range	3~70 deg C
Temperature resolution	0.01 deg C
Working temperature	5~55 deg C
Protection class	IP68
LCD display	(8-bit, 10-digit) + special symbol
Data protocol interface	infrared, M-BUS and Modbus (RS485 optional)
Built-in battery working life	3.6V high-energy lithium battery, theory lifetime more than 8 years

Details Image

– Temperature sensor: 2 Nos PT1000 mated for high accuracy.

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Data Sheet: Flanged Ultrasonic BTU Meter

If password required, please send email to info@tofee.com.cn to request.

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Shipping terms

Delivery Method	Incoterms Term	Applicable Countries
LCL, FCL by sea	EXW, FOB, CFR, CIF	General for all countries.
Air courier to door	DDU, DDP	General for all countries.
Air cargo to airport	CIF	General for all countries.
Door to door by road	DDP	Cambodia, Laos, Myanmar, Thailand, Vietnam. (keep expanding to more countries)
Door to door by sea	DDU, DDP	Cambodia, Indonesia, Malaysia, New Zealand, Philippines, Singapore, Thailand, United Arab Emirates, United Kingdom, United States. (keep expanding to more countries)