1Economic paperless recorderCharacteristics (BR2000E)

1. Adopting high-performance ARM Cortex-M3 32-bit RISC core, it can simultaneously achieve 4-channel signal acquisition, recording, display, and 2-channel alarm;
2. Using a 256M large capacity FLASH flash chip to store historical data, data is lost in case of power failure;
3. Physically isolated input, capable of inputting multiple signals simultaneously without the need to replace modules, and can be configured through software;
4. The numerical range for displaying engineering quantity data is wider and can display 4-digit values:- 999~9999；
5. The copy and paste function of the clipboard facilitates user parameter settings;
6.2 Relay alarm output, indicating the lower and lower limits, lower and upper limits, and upper and upper limits of each alarm;
7. Support external micro printers to manually print data and curves, meeting users' on-site printing needs;
8. Supports standard serial communication interfaces: RS232C and RS485, and supports Modbus RTU protocol; Supports fieldbus CAN transmission, enabling bus communication and control functions;
9. Equipped with USB interface, compatible with 1.1 and 2.0 USB drives, and compatible with non USB drives; Compatible with 2G, 4G, 6G, 8G, 16G USB drives; Fast and convenient transfer of historical data;
10. Standard serial communication interfaces: RS232C and RS485, supporting Modbus RTU protocol;
11. Adopting efficient green switching power supply, dual-use of AC and DC, with voltage input of 85-264VAC or 120-370VDC, input frequency range of 47-63Hz;
12. The instrument integrates hardware real-time clock, which can operate accurately even in the event of power failure, making it more convenient for enterprise measurement management;
13. Multiple additional functions are available: historical curves, cumulative reports, transmission outputs, etc. Note: Customization is required to activate these additional functions.

2、 Main performance indicators
Screen: 128 × 64 dot matrix blue screen liquid crystal display (LCD);
Accuracy: Real time display: ± 0.2% F.S;
Memory recall accuracy: ± 0.2% F.S;
(Note: Thermocouples should remove cold junction errors;)
Input specifications: fully isolated input, 1-4 channel signal input, fully isolated between channels, isolation voltage greater than 1000V;
Isolation impedance: 20MΩ @ 1000V；
Record capacity: 64/128/192/248MB (FLASH capacity optional);
Voltage input: 0-5V, 1-5V, 0-20mV, 0-100mV (› 1M Ω);
Current input: 0-10mA, 0-20mA, 4-20mA (impedance 250 Ω);
Thermal resistance: PT100, Cu50 (requires balanced three wire resistance, lead resistance ‹ 10 Ω);
Thermocouple: S、B、K、T、R、E、N、J、F2；
Other input signals or division marks need to be specified at the time of ordering;
Distribution output: transmitter centralized distribution+24VDC, supports multi-channel isolated distribution, distribution ≤ 30mA/channel;
Relay alarm output: 2-channel relay contact output, contact capacity 3A@220VAC / 1A@30VDC , configurable upper limit, upper limit, lower limit, and lower limit alarms;
Communication and printing: Communication interface - RS232C or RS485, baud rate - (1200, 2400, 9600, 19200), printing interface - RS232C directly connected to a micro printer;
Record interval: 1 second to 240 seconds, divided into 11 levels: 1/2/4/8/12/24/36/60/120/180/240 seconds optional;
Recording time: The length of recording time is related to the capacity of FLASH memory, the number of input points, and the recording interval. The calculation formula is as follows:

Data backup and transfer: 1G, 2G, 4G, 8G, 16GB and other compatible USB drives;
Cold end compensation error of thermocouple: ±1℃ ；
Power outage protection: Built in FLASH memory to protect parameters and historical data, which can be saved after power outage;
Integrated hardware clock: can run accurately even after power failure;
Clock error: ± 1 minute/month;
Power supply: 85VAC-264VAC，47～63HZ；
Environmental temperature: 0-50 ℃, avoid direct sunlight exposure;
ambient humidity: 0～85%R.H；
Net weight: ≤ 1.0Kg

3、 Size and installation