Model:7620
We can provide OEM service
E-mail: pearls@judongkj.cn
Product description：
Volume Display Regulator/ Recorder is specifically designed for industrial on-site regular and irregular canned liquid, volume and mass conversion. It also could match with various liquid sensors, such as ultrasonic liquid level meter. The device has sound anti-theft and anti-damage and other features.
Product Introduction
7620/7620R Series LCD <=>Volume Display Regulator/ Recorder is specifically designed for industrial on-site regular and irregular canned liquid, volume and mass conversion. It is based on a 32-bit ARM micro-processor and equipped with the secondary meter with high-speed AD and high-capacity storage unit. The device has empowered by the surface mounting technology, featuring the design of multiple-layered protection and isolation, with a strong anti-interference capability and high reliability. It has used the embedded operating system with USB data dump function. The data storage time could reach up to 720 days. By using U disk and host computer analysis software, one could call and view the historic curve of process variants and relevant historic data from time to time. It also could match with various liquid sensors, such as ultrasonic liquid level meter. The device has sound anti-theft and anti-damage and other features.
Technical Parameters
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Measurement Input |
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Input Signal |
Current: 0~20mA, 0~10mA, 4~20mA, 0~10mA rooting, 4~20mA rooting Input impedance: ≤ 100Ω Maximum input current limit: ≤ 30mA |
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Voltage: 0~5V, 1~5V, 0~10V (customized), 0~5V rooting, 1~5V rooting, Input impedance: ≥ 500KΩ |
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Output |
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Output Signal |
Analog output: 4~20mA (load resistance ≤ 480Ω), 0~20mA (load resistance ≤ 480Ω), 0~10mA (load resistance ≤ 960Ω), 1~5V (load resistance ≥ 250KΩ), 0~5V (load resistance ≥250KΩ), 0~10 V (load resistance ≥4KΩ) (customized) |
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Alarm output: relay control output – AC220V/2A, DC24V/2A (resistive load) |
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Feed output: DC24V±1, load current ≤ 50mA |
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Communication output: RS485/RS232 communication interface, configurable baud rate of 1200~9600bps, standard MODBUS RTU communication protocol, RS-485 communication distance of up to 1km, and RS-232 communication distance of up to 15m. |
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General Parameters |
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Measuring Accuracy |
0.2%FS±1d |
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Setting Mode |
Touch-panel-based key setting; password locking of parameter settings; permanent preservation of settings upon power failure. |
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Display |
Backlit 3.5-inch 128*64 high-resolution dot-matrix FSTN LCD Support the display of Chinese characters, figures, curves and bar graphs, as well as screen page turning, historical data search and timescale changes of curves etc. through the panel keys |
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Recording Interval |
1, 2, 4, 6, 15, 30, 60, 120, or 240 seconds, nine options available |
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Storage Length |
3 days (with 1-sec interval) – 720 days (with 240-sec interval) |
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Printing Control |
RS-232C printer interface, supporting SP-A40SH series serial printers |
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Operating Environment |
Ambient temperature: 0~50℃; relative humidity: ≤ 85%RH; avoid strongly corrosive gas |
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Working Power Supply |
AC 100~240V (switching power supply), 50/60HZ; DC 20~29V (switching power supply) |
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Power |
≤5W |
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Structure |
-Standard snap-in type |
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Ordering Instruction
Model Selection
NHR-762 □-□-□-□-□
Volume display regulator (1)(2)(3)(4)(5)
NHR-762 □R-□-□-□-□
Volume display (1) (2)(3)(4)(5)
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①Input |
③Alarm Output (Note 1) |
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Code |
Input channel |
Code |
Alarm channel (relay contact output) |
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1 2 |
Channel 1 input Channel 2 input |
X 1 2 3 4 5 6 |
No output Limit-1 alarm Limit-2 alarm Limit-3 alarm Limit-4 alarm Limit-5 alarm Limit-6 alarm |
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②Dimensions |
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Code |
W*H*D |
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A B C |
160*80*110mm (horizontal) 80*160*110mm (vertical) 96*96*110mm (square) |
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④Power Supply |
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Code |
Voltage range |
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A D |
AC/DC 100~240V(50/60Hz) DC 20~29V |
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⑤Additional Functions (all of the following functions can be selected and separated by “/”; functions not selected can be omitted) |
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Transmission Output (Note 1) |
Communication Output |
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Code |
Output channel |
Code |
Communication interface (communication protocol) |
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1 2 3 4 |
Channel-1 transmission output Channel-2 transmission output Channel-3 transmission output Channel-4 transmission output |
D1 D2 D3 |
RS-485 communication interface (Modbus RTU) RS232 communication interface (Modbus RTU) RS232C printer interface |
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Feed Output |
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Code |
Feed output (output voltage) |
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1P 2P |
Channel-1 feed output Channel-2 feed output E.g.: “2P (12/24)” refers to channel-1 and channel-2 feed outputs of 12V and 24V respectively |
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For Recording Instrument |
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USB Transfer |
Expansion |
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Code |
Transfer |
Code |
Expansion |
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U |
USB card transfer (with 1GB U disk) |
SD |
SD card expansion (8GB) |
Note 1: the transmission output can be combined with alarm output, i.e. transmission output +
alarm output ≤ 6
★: Input signal type (please indicate the signal type following the model selection at the time of goods ordering)|
Signal Type |
Span Range |
Signal Type |
Span Range |
Signal Type |
Span Range |
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0~20mA 0~10mA 4~20mA 0~5mA |
-9999~99999 -9999~99999 -9999~99999 -9999~99999 |
1~5mA 0~10mA (customized) 0~10mA rooting 4~20mA rooting |
-9999~99999 -9999~99999 -9999~99999 -9999~99999 |
0~5mA rooting 1~5mA rooting |
-9999~99999 -9999~99999 |
★Output signal type (please indicate the signal type following the model selection)
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Signal Type |
4~20mA |
1~5V |
0~10mA |
0~5V |
0~20mA |
0~10V (customized) |
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RL |
RL≤480Ω |
RL≥250KΩ |
RL≤960Ω |
RL≥250KΩ |
RL≤480Ω |
RL≥4KΩ |
Contact information：
Hangzhou Judong Technology Co., Ltd.
Contact: Pearls
Tel: +86 571 82519092
Fax:+86 571 82501775
Mobile phone：+86 13958104917
WhatsApp:+86 13958104917
WeChat:13958104917
Skype:pearls@163.com
Email :pearls@judongkj.cn
Address:No. 1, Wanyuan Road, Shushan Street, Xiaoshan District, Hangzhou, Zhejiang, China (Mainland) Email：724167905@qq.com
Phone:+86 571 82519092/82306527 Fax:+86 571 82501775
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