SILVER AUTOMATION INSTRUMENTS LTD.

AJ Flow Totalizer

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Features of AJ Flow Totalizer

  • Suitable for flow (Heat) displaying, calculating and controlling of all kinds of liquids, single or mixed gases and vapor. It is flow rate totalizer.
  • Input multiple flow sensor signals (Such as VSF, Turbine, Electromagnetic, Roots, Elliptical gear, Duplex rotor, Orifice plate,V-cone, Annubar, and Thermal flowmeter, etc.). it is universal flow monitors.
  • Flow totalizer input channel: Receive frequency and multiple current signals.
  • Pressure and temperature input channel: Receive multiple current signals. It is steam/gas flow controller with temperature and pressure compensation calculation.
  • Provide 24VDC and 12VDC power supply with short circuit protection, simplify the system and save investment.
  • Fault-tolerance: When the compensation measurement signals of temperature, pressure or density are abnormal, compensate with the manual setting of the corresponding operation.
  • Circular display: Provide convenience to monitor multiple process variables, not just a flow counter, can also indicate temperature and pressure information when the signals are connected to our flow totalizer indicator.
  • The update cycle of output current signal is 1 second, which can meet the requirements of the automatic control.
  • Configure with Instrument clock, automatic meter reading and print function, provide convenience for metering management.
  • Self-test and self diagnosis makes the flow rate totalizer easier to use and maintain.
  • 3 -level password to prevent unauthorized personnel to modify parameters.
  • There are no potentiometer, code switch and other adjustable devices, that can improve the vibration resistance, stability and reliability of the flow totalizer.
  • Communication
    • RS485
    • RS232
    • GPRS/CDMA (English Version is not available)
    • Ethernet (English Version is not available)
  • Configure with temperature, pressure, and density compensations, and it also has compressibility coefficient compensation for general gas and flow nonlinear compensation. it is gas flow controller.
  • Perfect function of vapor’s density compensation, automatic recognition of saturated vapor and superheated vapor and moisture content calculation of wet vapor. It is vapor/steam flow computer.
  • Special function for trade settlement.
    • Power down record
    • Timing meter reading
    • Query function on some illegal operations.
    • Printing
  • Flow Totalizer Display unit can be modified according to different requirements.
  • Large storage function for flow rate totalizer
    • Day record can be stored in 5 years
    • Month record can be stored in 5 years
    • Year record can be stored in 16 years

Specifications of AJ Flow Totalizer

Description

Specifications

Input Signal

Analog Input

Pulse Input

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

Waveform: Rectangular, Sine and Triangle wave

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, 1stop 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

Backlit 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


AJ Flow Totalizer Display Screen

AJ Flow Totalizer Display Screen

AJ Flow Totalizer Display Screen

Example Configurationof AJ Flow Totalizer

Sample 1

DN50 Vortex flow sensor, measure vapor; average flow coefficient is 9.4132/l; temperature and pressure compensation; temperature sensor Pt100; pressure transmitter 0-1,6MPa; 4-20mA output; No alarm; low frequency cut-off is 60Hz; temperature range +150~200℃ (If temperature is out if the range, use 180℃ setting temperature); pressure range 0.7~1.0MPa (If pressure is out if the range, use 0.8MPa setting pressure).

Parameter Configuration of flow totalizer

Parameter Configuration of flow totalizer

Sample 2

V-cone flowmeter, measure vapor mass; Rosemount 3051 differential pressure transmitter, Pt100 and pressure transmitter; differential pressure transmitter range 0 ~ +300Pa; output 4-20mA No ; flow range 20t/h; design density 3.3342kg/m3;pressure transmitter range 0 ~ 1.6MPa; temperature range +170~+260℃; common temperature: +200℃; pressure range 0.6~1.0MPa; common pressure: +0.7MPa; low current cut-off 4.005mA.

Parameter Configuration of flow totalizer

V-cone flowmeter Parameter Configuration


Sample 3

Magnetic flowmeter, measure liquid; output 4-20mA; range 0-60m3/h.

Parameter Configuration of flow totalizer

Magnetic flowmeter Parameter Configuration

AJ Flow Totalizer Model Selection

Item

Code

Description

General

AJ

AJ series Flow Totalizer

Dimension

8

160×80mm (horizontal)

Communication

00

No communication function

01

RS-485 communication

02

RS-232 communication

03

Ethernet (English is unavailable)

Alarm 1

1NO

Switching signal of relay output

2NC

Alarm 2

1NO

2NC

Output

1

Current Output

2

Pulse output

Input

1

Thermocouple

2

Pt100

3

Pt1000

4

Current: 0-10mA

5

Current: 4-20mA

Feed Output

1

DC +5V

2

DC +12V

3

DC +24V

Power Supply

1

AC 220V

2

AC 36V

3

DC 24V

Extended Function

1

USB interface, using to download the data in meter

2

Current: 4-20mA

3

16 Bit A/D convertor module

4

Wireless remote control function.*1

*1 Mainly used in dangerous occasion and condition of no opening the flow totalizer.

Dimensions of AJ Flow Totalizer

Dimensions of AJ Flow Totalizer

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