Usage
Heat meter is consisted of flow sensor, microprocessor and matched pair temperature sensor. Is a kind of instrument used to measure and display the released heat power when the heat-carrying liquid pass through the heat exchange system.
Functions
1.The Calculator can rotate freely, so as to observe the readings conveniently.
2. M-BUS or RS485 communication, data remote transmission and centralized control can be realized.
3. Cold and hot dual-use.
4. Not affected by bad water quality.
5. Measuring mechanism has no moving parts and no wear and tear forever.
6. Low maintenance cost.
7. Automatic error diagnosis, abnormal reminding
8. Low starting flow. Horizontal or vertical installment.
 
Product Parameters

Nominal Caliber(DN)mm	Common flow rate	Mini flow rate	Max flow rate
DN15	1.5 m3/h	0.03 m3/h	3.0 m3/h
DN20	2.5 m3/h	0.05 m3/h	5.0 m3/h
DN25	3.5 m3/h	0.07 m3/h	7.0 m3/h
DN32	6.0 m3/h	0.12 m3/h	12.0 m3/h
DN40	10.0 m3/h	0.20 m3/h	20 m3/h
Temperature sensor	Pt1000
Temperature range	4℃～95℃
Temperature difference range	3℃～70℃
Installment Mode	Horizontal or vertical installment
Working power supply	3.6V/4Ah
Battery Life	≥6Year
Working pressure	≤1.6MPa
Loss of pressure	≤0.025Mpa
Digit number of display screen	8 numbers
Temperature range	4℃～95℃
Accuracy	Class 2
Sound speed correction function	Yes
Communication interface	Optoelectronic interface or M-BUS

 

Nominal Caliber(DN)mm	Common flow rate	Mini flow rate	Max flow rate
DN50	15 m3/h	0.6 m3/h	30m3/h
DN65	25 m3/h	1.0 m3/h	50 m3/h
DN80	40 m3/h	1.6 m3/h	80 m3/h
DN100	60 m3/h	2.4 m3/h	120 m3/h
DN125	100 m3/h	4.0 m3/h	200 m3/h
DN150	150 m3/h	6.0 m3/h	300 m3/h
DN200	250 m3/h	10.0 m3/h	500 m3/h
Temperature Sensor	Pt1000
Temperature Range	4℃～95℃
Temperature Difference Range	3℃～70℃
Installment Mode	Horizontal or vertical installment
Working Power Supply	Double battery  , Each battery is 3.6V/4Ah
Battery Life	≥6Year
Working Pressure	≤1.6MPa
Loss of Pressure	≤0.025Mpa
Digit number of Display Screen	8 numbers
Temperature Range	4℃～95℃
Accuracy	Class 2
Sound Speed Correction Function	Yes
Communication Interface	Optoelectronic interface or M-BUS
Pressure Sensor Range	0Mpa~2.5Mpa
Environmental Grade	A
Accuracy of Pressure Measurement	0.1(±1.0%)

 
 
Technical characteristics(Partial Caliber)

Nominal Caliber(DN)mm	Length(mm)	Interface Thread
20	130	G1B
25（1=130mm）	130	G1’1/4
25	160	G1’1/4
32	180	G1’1/2
40	200	G2B

 
 
Building type nominal diameter, flow and flange（Body material：iron）

Nominal Caliber(DN)mm	Length(mm)	Connecting Flange
50	200	φ165×φ125-4×φ19
65	200	φ185×φ145-4×φ19
80	225	φ200×φ160-8×φ19
100	250	φ220×φ180-8×φ19
125	250	φ250×φ210-8×φ19
150	300	φ285×φ240-8×φ22
200	350	φ340×φ295-12×φ22
250	450	φ405×φ355-12×φ26
300	500	φ460×φ410-12×φ26
350	500	φ520×φ470-16×φ26
400	600	φ580×φ525-16×φ30

 
 
Installation notes and Instructions:

1. Before installation, the pipes should be cleaned up firstly in case of pipes block which will influence normal working of heat meter. And we suggest that it will be better to install filter device in front of the heat meter.
 
2. Heat meter should be installed at the place of water outlet of the pipe, to avoid pollution, and make it easy for dismantling and check.
 
3. Heat meter should be installed horizontally (with the side of display upward), the direction of arrow should be the same with that of the water flow direction in the pipe.
 
4. The inlet temperature sensor (line with red label) should be installed on the joint of the water entrance, and the outlet temperature sensor (line with blue label) should be installed on the joint of the water exit.
 
5. Don’t use excessive force when connecting meter and pipe in order to avoid crushing sealed washer and cause water leaking.
 
6. Handle with care when delivery and avoid store the meters in strong magnetic field.