VX2000F is a three channel universal input flow accumulation paperless recorder with temperature and pressure compensation function. The instrument can be configured to select input signals such as standard current, standard voltage, frequency, thermocouple, thermal resistance, etc. It can provide sensor power distribution and analog transmission output, as well as two relay contact outputs. Equipped with standard USB 2.0 interface, supporting USB data transfer function.
JK2000F fully utilizes the advantages of LCD graphical interface, with simple, intuitive, and convenient configuration, without the need for secondary calculations of most traditional integrators. It fully considers the engineering issues in flow measurement and combines the successful experience of multiple thermal companies in heat network management to add many new functions for resolving trade settlement disputes between supply and demand sides.
Equipped with various traffic calculation models. Can be equipped with various sensors such as vortex street, electromagnetic flowmeter, orifice plate, bend pipe, etc.
The compensation model is rich and can compensate for various media such as liquids, general gases, and steam.
The small flow replenishment measurement function, combined with real-time monitoring and recording function, effectively prevents car theft behavior.
Provide daily, monthly, and annual reports on cumulative traffic.
When the temperature sensor or pressure sensor malfunctions, it will automatically switch to the set temperature and calculate the compensation amount based on the pressure.
It has a power-off recording function, which records the time of instrument power on and power-off, displays the cumulative power-off time, and prevents users from stealing steam during power outages.
Powerful network function: equipped with RS-232C or RS-485 communication interface, supporting remote configuration and data management on the upper computer; The wired network can communicate up to 5 kilometers through repeaters, with a maximum baud rate of 19.2K. It can also be remotely monitored and managed through MODE telephone dialing, GSM mobile SMS, GPRS mobile communication, or wireless data transmission methods. Using a handheld computer (PDA) allows for direct configuration and data management. Built in print driver that can directly connect to a micro printer to print historical data and curves for a specified time period. In addition to ScanX real-time monitoring software, it also supports popular professional configuration software such as IFIX, Citect, Kingview, MCGS, etc.
Main technical specifications of VX2000F temperature and pressure compensation flow accumulation paperless recorder
Display: 128 × 64 dot matrix LCD display, LED backlight
Basic error: ± 0.2% FS
Input specifications: Voltage: Millivolt signal
(Universal input)
Current: (0-10) mA, (4-20) mA
Thermocouples: K, S, B, T, E, J
Thermistor: Pt100, Cu50
Frequency: (0-10) KHz, rectangular wave, sine wave, triangular wave
Output specification: Sensor power distribution: Two channels of DC24V power distribution, ≤ 40mA/channel
One analog transmission output: (4-20) mA, load resistance less than 600 Ω
Two configurable relay contact outputs, with a contact capacity of 3A and 250VAC (resistive load), default to normally open contacts.
Compensation calculation: Steam: According to the IFC67 formula table, query the steam density and measure the mass flow rate of steam.
General gas: temperature, pressure compensation measurement standard volume flow rate.
Natural gas: Temperature and pressure compensation measurement standard volumetric flow rate.
Water: Temperature compensated measurement of standard volumetric flow rate or mass flow rate.
Compensation range: Steam: pressure 0.1-2.6MPa
Temperature 100-500 ℃
Density 0.1-100kg/m3
Specific enthalpy 2508-322KJ/Kg
General gas: pressure 0-60MPa
Temperature -100-500 ℃
Liquid: Temperature -100-500 ℃
Cumulative range: 0 to 99999999999
Heat loss compensation: small flow compensation: 0-100%
Overlimit compensation: 0-200%
Data backup and transfer: 256MB~1G USB drive optional
Communication and printing: Communication interface RS232C or RS485
Baud rates: 1200, 2400, 9600, 19200
Printing interface: RS232C serial port micro printer
Recording time: Recording interval: 1, 2, 4, 6, 15, 30, 60, 120, 240 seconds selectable
Record length: 72 hours/pen (record interval of 1 second) to 720 days/pen (record interval of 4 minutes)
Power failure record: The system automatically records the last 12 power failure and power on times.
Cumulative report: Annual, monthly, and daily cumulative reports.
Cold end compensation error of thermocouple: ± 1 ℃
Power outage protection: FLASH Memory saves setting parameters and historical data, and data can be permanently saved after power outage. Using a hardware clock, it can operate accurately even after power failure.
Power supply: Switching power supply 85VAC~265VAC, 50Hz ± 5% or DC24V ± 2V, power consumption<10W
Environmental temperature: 0-50 ℃
Environmental temperature: 0-85% RH
VX2000F Temperature and Pressure Compensation Flow Calculation Paperless Recorder Selection Table
|
VX2000F flow integrator |
|
VX |
twenty |
03 |
F |
two |
one |
□ |
P |
□ |
-□ |
|
|
model |
Type spectrum |
Explanation |
|
VX |
twenty |
|
Design sequence |
|
|
03 |
|
Three channel input |
|
|
F |
|
Compensation type flow integrator |
|
Relay output ① |
|
two |
|
Route Two |
|
Analog output ② |
|
one |
|
All the way |
|
Communication/Printing
function |
|
0 |
|
nothing |
|
|
one |
|
RS-232C communication/printing |
|
|
two |
|
RS-485 communication |
|
Distribution output |
|
P |
|
DC24V distribution output |
|
USB
Transfer function |
|
0 |
|
nothing |
|
|
/U |
|
USB transfer function |
|
Special function code |
|
|
-□ |
Special function code |
|
Note: ① The number of relay output channels can be configured
② 4-20mA transmission output
③ Fixed as two-way distribution output |