DY-300R is an 8-channel universal input monochrome paperless recorder. It can input signals such as standard current, standard voltage, thermocouple, thermistor, millivolt, etc. It has functions such as sensor isolation distribution, relay output, flow integration, temperature and pressure compensation, thermal energy integration, PID regulation, historical data transfer, printing, and remote communication.
5.4-inch dot matrix LCD graphic display screen, LED backlight, rich image, and large amount of information;
High speed, high-performance microprocessor that can simultaneously detect, record, display, and alarm 8 signals;
Using high-capacity FLASH flash memory chips to store historical data, never losing data in case of power failure;
Fully isolated universal input, capable of inputting multiple signals without the need for hardware replacement, can be configured through instrument configuration:
The quantity display has a wide range of numerical values and can display 5-digit values: -9999 to 19999; The cumulative value can reach 99999999;
Chinese menu configuration, display channel number, engineering unit, flow accumulation, temperature and pressure compensation, software password lock protection for user configuration security;
Multiple algorithms are used to accumulate and compensate for the temperature and pressure of water, oil, liquid, general gas, steam, and other flow rates;
Accumulated report, recording daily cumulative amount, monthly cumulative amount, and total cumulative amount;
Alarm display, indicating the lower and lower limits, lower and upper limits, and upper and upper limits of each channel alarm simultaneously;
Alarm records, recording the last 10 alarm messages for each channel;
High display accuracy: The basic error of displaying numbers, curves, and bar charts is ± 0.2% FS;
Data transfer, using CF cards (also known as electronic hard drives: used as storage media in devices such as digital cameras) to backup and transfer historical data.
The interface between CF card and computer is USB interface, which is the development direction of mobile storage with one card for multiple purposes;
Standard serial communication interfaces: RS485 and RS232C;
Can be connected to an external micro printer to meet the on-site printing needs of users;
Modbus communication protocol, in addition to our company's PG2000 upper computer management software, also supports popular professional configuration software such as iFIX, Kingview, DYGS, etc;
The new switch power supply operates normally within the range of 85VAC to 265VAC;
Provide transmitter+24VDC isolated power distribution;
Metal casing, allowing for use in harsh environments.

Display: 160 × 12 8-dot matrix graphic LCD display with LED backlight
Basic error: ± 0 2 ％ F. S
Fully isolated universal input: 1-8 channel signal input, fully isolated between channels, isolation voltage of 400 V.

Input specifications: (1) Standard Type II and Type III signals: 0-10mADC, 0-5VDC, 1-5VDC, 4-20mADC;
(2) Thermocouples: including commonly used B, E, J, K, S, T;
(3) Thermistor: including Pt100, Cu50;
(4) Millivolt signal: 0-20mV, 0-10mV;
(5) Resistance signal: 0-350 Ω;
(6) Frequency: 0-10KHz;
(7) Customize according to user requirements;

Output specifications
Distribution: Eight way distribution, 2 sets of 24VD C outputs, output current of 100mA/set, eight configurable relay contact outputs, contact capacity of 3A, 250VA C (resistive load) default to normally open contacts.


Compensation calculation: Steam: Calculate the mass flow rate of steam density compensation according to the IFC67 formula.
General gas: temperature, pressure compensation measurement standard volume flow rate.
Natural gas: Temperature and pressure compensation measurement standard volumetric flow rate.
Liquid: Temperature compensated measurement of standard volumetric flow rate or mass flow rate.
Compensation range: Steam: pressure 0.1-4.5MPa, temperature 100-500 ℃, density 0.1-100Kg/m3, ratio 2508-3224KJ/Kg
General gas: pressure 0-60MPa
Temperature -100-500 ℃ Liquid: Temperature -100-500 ℃

Communication, printing RS232C or RS485
Baud rate: 1200, 2400, 9600, 57600 Printing interface: RS232C directly connected to serial micro printer

Data backup and transfer with 64M~256M CF card optional (64M CF card backup time<30 seconds,
Can backup the historical data of 51 instruments)
Cold end compensation error of thermocouple: ± 1 ℃
Record interval: 1, 2, 5, 10, 15, 30, 60, 120, 240 seconds optional.
Record length: 36 hours/pen (recording interval of 1 second) to 360 days/pen (recording interval of 4 minutes)
Power outage protection: Built in FLASH memory to protect parameters and historical data, which can be permanently saved after power outage. Integrated hardware clock that can operate accurately even after power failure.
Power supply: Switching power supply 85VAC~265VAC, 50Hz ± 5%
Environmental temperature: 0-50 ℃
Environmental humidity: 0-85% RH

4、 DY300R Paperless Recorder Selection Table