Cooling Heat Totalizer

Short Description:

XSJRL series cooling heat totalizer is a microprocessor based, complete functions, can measure the flow meter with various flow transmitter, sensor, and two branch platinum thermal resistance (or temperature transmitter) with the completion of liquid cold or heat metering.


Product Detail

Product Tags

Product Overview

XSJRL series cooling heat totalizer is a microprocessor based, complete functions, can measure the flow meter with various flow transmitter, sensor, and two branch platinum thermal resistance (or temperature transmitter) with the completion of liquid cold or heat metering. Due to the careful reliability design, the instrument has good electromagnetic compatibility and reliability. Because of the high precision A / D converter and good temperature stability of the components, and the floating-point operations, has also taken a number of measures to improve the precision of the system, the measurement of heat cooling metering instrument can be used as heat carrier or cold media, especially for trade settlement and measurement and assessment, in building air conditioning system, after the valve switch, the instrument can be used for summer cooling metering, can be used for measuring the heat in winter, and can automatically convert a dual-purpose table.

Product Overview

1.At the same time, it has the function of liquid cold medium cooling measurement and heat carrier heat metering function;

2.The fluid can be either fresh water or salt water, calcium chloride and other liquids;

3.Introduction of temperature correction for liquid mass flow;

4.It is suitable for various liquid flow and heat display, accumulation and control;

5.Input multiple flow sensor signals (Such as VSF, Turbine, Electromagnetic, Roots, Elliptical gear, Duplex rotor, Orifice plate, V-cone, and Thermal flow meter, etc.);

6.Flow input channel: Receive frequency and multiple current signals;

7.Pressure and temperature input channel: Receive multiple current signals;

8.Provide 24VDC and 12VDC power supply with short circuit protection, simplify the system and save investment;

9.Fault-tolerance: When the compensation measurement signals of temperature, pressure or density are abnormal, compensate with the manual setting of the corresponding operation;

10.Circular display: Provide convenience to monitor multiple process variables;

11.The update cycle of output current signal is 1 second, which can meet the requirements of the automatic control;

12.Configure with Instrument clock, automatic meter reading and print function, provide convenience for metering management;

13.Self-test and self diagnosis make the instrument more easy to use and maintain 3 -level password to prevent unauthorized personnel to modify parameters;

14.There are no potentiometer, code switch and other adjustable devices, that can improve the vibration resistance, stability and reliability of the instrument;

15.Communication :RS485 、RS232 、GPRS/CDMA 、Ethernet;

16.The USB interface can be configured to export the instrument data to the U disk;

17.Configure with temperature, pressure, and density compensations, and it also has coefficient compensation for general gas and flow nonlinear compensation;

18. Perfect function of vapor’s density compensation, automatic recognition of saturated vapor and superheated vapor and moisture content calculation of wet vapor;

19. Special function for trade settlement:

A.Power down record

B.Timing meter reading

C.Query function on some illegal operations.

D.Printing

20. Display unit can be modified according to different requirements;

21. Large storage function:

A.Day record can be stored in 5 year

B.Month record can be stored in 5 years

C.Year record can be stored in 16 years

Performance Index

Description

Specification

 

 

Input signal

Analog Input

Pulse Input

Thermocouple: K, E, B, J, N, T, S

Waveform: Rectangular, Sine and Triangle

Pt100

Amplitude: more than 4V

Current: 0-10mA, 4~20mA

Input impedance≤250Ω

Frequency: 0~10KHz

Special requirements please contact us

 

 

 

Output Signal

Analog Output

Communication Output

Switch Output

Feed Output

DC 0~10mA(load resistance ≤750Ω)

RS232;RS485;

Ethernet

Relay with hysteresis

DC24V(load current≤100mA)

DC 4~20mA(load resistance ≤500Ω)

Baud rate: 600, 1200, 2400, 4800, 9600bps,8 data bits, 1 stop bit, and 1 start bit

AC220V/3A;

DC24V/6A(Resistive load)

DC12V (load current≤200mA)

Accuracy

0.2%FS±1d or 0.5%FS±1d

Accuracy for frequency conversion: ±1 pulse (LMS), better than 0.2%

Measuring Range

-999999~999999 for flow rate and compensation value;

0~99999999.9999 for totalizer

 

Display

Back lit 128*64 lattice LCD;

Display flow totalizer, flow rate, energy, power, medium temperature, medium pressure, medium density, medium heat enthalpy, differential pressure, current, frequency, date, time, Alarm status

 

Control/Alarm

Optional relay upper limit and lower limit control (Alarm) output, LCD and LED output indication;

Control (Alarm) with hysteresis (The number of alarm relay is up to 2);

Alarm type: flow upper and lower limit, temperature upper and lower limit, pressure upper and lower limit

Print

Through RS232 interface to Serial thermal printer ;

Real-time print or timing print, Up to 8 times timing print in one day

 

 

Protection

Totalizer will be remained for more than 20 years after power off ;

Reset automatically when Power supply is low;

Reset automatically when abnormal working (Watch Dog);

Self-healing fuse;

Short circuit protection

Password protection for important data

Operating environment

Ambient temperature : -20~60℃; Relative humidity: ≤85%RH, Far from strong corrosive gas

 

Power supply

Normal Type: AC 220V % (50Hz±2Hz)

Special Type: AC 80~265V (Switch power)

DC 24V±1V (Switch power) (AC 36V 50Hz±2Hz)

Back-up power: +12V, 20AH, it will last 72 hours

Power consumption

≤10W

Model Series

XSJ-R SERIES

Model

Functions

 

XSJ-R0

English characters display, with temperature and pressure compensation, with all the way alarm channel, 220VAC power supply / 12 ~ 24VDC power supply

 

XSJ-R1

English characters display,with temperature and pressure compensation, with one alarm channel, with isolated RS485 communication, 220VAC power supply / 12 ~ 24VDC power supply

 

XSJ-R5

English characters display,with temperature and pressure compensation, with all the way alarm channel, with RS232 communication, 220VAC power supply / 12 ~ 24VDC power supply

 

XSJ-R8

English characters display,with temperature and pressure compensation, with all the way alarm channel, with all the way 4 ~ 20mA current output, 220VAC power supply / 12 ~ 24VDC power supply

 

XSJ-R9   

English characters display, with temperature and pressure compensation, with one alarm channel, with isolated RS485 communication, with all the way 4 ~ 20mA current output, 220VAC power supply / 12 ~ 24VDC power supply


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