Overview
SWP-NSR intelligent monochrome LCD paperless recorder is an intelligent multifunctional secondary instrument suitable for monitoring, controlling, recording, and remote data transmission of various process parameters.
The SWP-NSR intelligent monochrome LCD paperless recorder adopts the structural ideas of today's computers in its design: it uses a large screen LCD graphics display board as the display screen in hardware, a new microprocessor with flash memory inside, and expands the large capacity data storage area; The software introduces the framework of Chinese WINDOWS and adopts data compression technology.
The quasi computerized structure highly reflects the superiority of microprocessor based instruments, successfully integrating a multifunctional monochrome paperless recording instrument that can achieve multi loop parameter monitoring, display multiple sets of numbers and graphic curves on the same screen/split screen, and contain a large capacity data recording and storage space in a housing with a volume of 144 × 144 × 240 mm. The SWP-NSR intelligent monochrome LCD paperless recorder has made challenging reforms to traditional mechanical recorders in terms of human-machine operation and observation interface: guiding configuration operations with Chinese menus, displaying measurement processes and results with rich graphic and textual data, identifying the engineering meaning of screen content with clear Chinese information, replacing traditional recording pens and paper with large capacity semiconductor memory, overcoming various drawbacks and consumable costs of mechanical recorders, and giving people a simple and intuitive feeling of "intelligence".
The SWP-NSR intelligent monochrome LCD paperless recorder can accept up to 12 measured signals, output up to 12 relay signals, 6 DC24V power supplies, and 4 analog outputs. It can complete the entire process from signal acquisition, control, recording, retrieval to transmission according to user requirements.

The SWP-NSR intelligent monochrome LCD paperless recorder can be directly connected to a printer with an RS232 serial port to print data or curves.
The serial communication interface of SWP-NSR intelligent monochrome LCD paperless recorder can use SR-BUS instrument communication protocol or MODBUS RTU communication protocol and
The upper computer performs data transmission to achieve centralized management of recorded data.
The SWP-NSR intelligent monochrome LCD paperless recorder can feed and output power to the sensor, and the system composed of it can eliminate the need for a power distributor.

Main Features
1.1 Multiple input and output channels
Input channel: Up to 12 fully switchable and fully isolated signals.  
DC24V power supply output channel: up to 6 channels
Relay output channels: up to 12 channels
Analog output channels: up to 4 channels
1.2 Multi functional display screen:
Adopting a large LCD graphic display panel as the display screen, it can centrally display Chinese menus, input channel numbers, measurement and calculation values, process curves, engineering units, etc
Percentage bar chart, output and alarm status, historical record recall, etc.
1.3 Convenient operating interface:
Quick Chinese menu prompts users to complete parameter settings step by step.  
Clear Chinese information indicating the engineering meaning of the displayed data.  
Rich graphical display, providing parameter combinations that need to be displayed.
The touch sensitive panel buttons facilitate users to perform various operations.
1.4 High Capacity Storage Space:
The built-in large capacity memory has a maximum storage space of 16Mbit, and the recording points store the numerical values at the recording time.
1.5 Fast communication speed:
Equipped with a standard bidirectional serial communication port, it can exchange data with the upper computer or other related devices at a rate of up to 57600bps. You can choose between RS-232 or RS-485 communication methods.
1.6 Flexible Additional Features:
Through additional modules and corresponding parameter settings, the instrument can provide analog transmission signal output, printer interface signal output, DC power supply output, and standard dual
Output to serial communication interface, alarm sound buzzer, etc. Flexible operation channel types can meet many special functional requirements.
1.7 Powerful recording and recalling function:
Can be recalled in one step.  
Can automatically recall continuously (with 20 adjustable recall speeds).  
You can search for memories by time.  
Historical data and curves can be viewed by moving the positioning axis.

1.9 Instrument working principle
The NSR series intelligent monochrome flow accumulation recorder adopts a plug-in combination structure, which is composed of a motherboard and different types of expansion boards to form different types of recorders
Each instrument can carry up to 2 expansion boards.

Main technical indicators
Input signal
Analog input: Thermocouples B, S, K, E, T, J, W
Thermal resistance PT100, CU50
Voltage 0-5V 1-5V
0 — 100mV　 0 — 20mV
Current 0-10mA 4-20mA
Pulse input: rectangular wave, sine wave or triangular wave
Amplitude ≥ 4V, frequency 0-15KHz
output signal
Analog output: current 0-10mA (load ≤ 750 Ω)
4-20mA (load ≤ 500 Ω)
Voltage 0-5V (load ≥ 250K Ω)
1-5V (load ≥ 250K Ω)
Switching output:
Relay contact capacity: AC 220V/3A or DC 24V/5A (resistive load)
SCR output -400V/0.5A
SSR output -5-24V/0.05A
Feed output: DC 24V/30mA
Accuracy 0.5% FS ± 1 word or 0.2% FS ± 1 word
Small signal cutoff 0-25.5% FS
Measurement range -1999-999999 words
Sampling period of 1 second
There are a total of 240 options available in seconds between 1 second and 4 minutes.
Display Method: Backlit Large Screen True Color LCD Graphic Display Panel
The display content can be composed of Chinese characters, Western languages, numbers, process curves, light columns, etc
The panel buttons can be used to flip through the screen, search for historical data before and after, adjust the contrast of the LCD screen, and change the screen time scale
The Chinese menu prompt for parameter setting can be set through buttons or the communication port of the upper computer, and the parameter password can be locked.
The alarm function can set up to 4 alarm points per channel, and each alarm point can select an upper or lower limit alarm. The alarm output delay time can be set
Alarm hysteresis, relay contact output (12 relays can be reused), buzzer alarm output. External alarm sound contacts and alarms can also be set up
Automatic switching function of the alarm screen. Each channel stores the latest 16 alarm messages.
The control mode can choose to bring back differential ON/OFF relay contact output (AC220V/3A).
Communication output RS232/485, baud rate 1200~19200pbs (with optical isolation, instrument rear interface)
1200~57600pbs (TTL level, instrument front-end USB interface)
The printing function can be connected to external panel type, desktop micro printers, or wide line printers with serial output (such as LQ-300K) to print historical data or curves.
Protection mode setting parameters are permanently saved, data recording is saved in case of power failure, and a built-in watchdog circuit is installed.
Language Simplified Chinese
Use in an environment with a temperature range of 0~45 ℃ and a relative humidity of ≤ 85% RH to avoid strong corrosive gases. Power supply voltage AC 220V+10-15% 50-60Hz
Power consumption ≤ 25W
Weight approximately 2700 grams