NHR-7300/7300R series LCD PID regulator/regulator recorder

NegotiableUpdate on 08/04

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Overview: The NHR-7300/7300R series LCD PID regulator/recorder is suitable for high-precision measurement and control systems, and can digitally display and adjust measurement signals such as temperature, pressure, liquid level, and speed; Can choose internal and external given (or valve position) control methods, which can replace amplifiers to directly drive actuators; Programmable control mode can be selected, and 61 target curves can be set to monitor, control, record, and remotely transmit the controlled object. According to the control method, it can be divided into the following categories: NHR-7310/7310R single channel self-tuning PID regulator/regulating recorder. When automatic control is performed, the input measurement value is compared with the internal target value and the control signal is output after calculation. When the NHR-7320/7320R external PID controller/recorder is automatically controlled, the input measurement value is compared with the external input target value and the control signal is output after calculation. When the NHR-7330/7330R valve position feedback PID regulator/control recorder is automatically controlled, there are two control modes based on the different types of control outputs. Firstly, select the analog control output: compare the input measurement value with the internal target value and output the control signal. Mode 2: Select switch control output: When the percentage of control output is less than the valve position feedback value, the instrument output reverses. When the percentage of control output is greater than the valve position feedback value, the instrument output is positive .....

Product Details

overview

The NHR-7300/7300R series LCD PID regulator/recorder is suitable for high-precision measurement and control systems, and can digitally display and adjust measurement signals such as temperature, pressure, liquid level, and speed; Can choose internal and external given (or valve position) control methods, which can replace amplifiers to directly drive actuators; Programmable control mode can be selected, and 61 target curves can be set to monitor, control, record, and remotely transmit the controlled object.

According to the control method, it can be divided into the following categories:

NHR-7310/7310R Single channel self-tuning PID regulator/regulating recorder	During automatic control, the input measurement value is compared with the internal target value and a control signal is output after calculation.
NHR-7320/7320R External PID regulator/regulation recorder	During automatic control, the input measurement value is compared and calculated with the externally given input target value to output a control signal.
NHR-7330/7330R Valve position feedback PID regulator/regulating recorder	During automatic control, control is divided into two modes based on the different types of control outputs Mode 1: Select analog control output: Compare the input measurement value with the internal target value and output the control signal. Mode 2: Select switch control output: When the percentage of control output is less than the valve position feedback value, the instrument output reverses. When the percentage of control output is greater than the valve position feedback value, the instrument output reverses.
NHR-7340/7340R Program PID regulator/regulation recorder	According to the requirements of the production process, setting a target curve for control can achieve the operation of running, stepping, pausing, ending, and waiting states for curve control.

　instrument panel


160 * 80mm (Type A)	80 * 160mm (Type B)	96 * 96mm (Type C)
		① Display panel ② USB and SD interfaces ③ Confirm button Display channel switch key Time scale switch, manual/automatic switch key ④ Right cursor shift key ⑤ Left cursor shift key ⑥ Cursor up key ⑦ Cursor down key

Simple visual indication

　Wiring diagram

NHR-7310 (R)/7340 (R) series instrument wiring diagram

NHR-7320 (R) series instrument wiring diagram

NHR-7330 (R) series instrument wiring diagram

Note 1: If different functions are marked on the same group of terminals in the wiring diagram, only one function can be selected. If RS485 and RS232 are connected to the same set of terminals, only one can be selected.

Note 2: The direction of the wiring terminals on the back cover of the horizontal and vertical instruments is different, as shown in schematic diagram 1

　instrument selectionNHR-73 □-□-□-□-□-□
PID regulator ①②③③③⑤⑥
NHR-73 □R-□-□-□-□-□
PID control recorder ①②③③③⑤⑥

① Control method (Note 1)		② Specification and size
code	control mode	code	Width * Height * Depth
10 20 30 40	Single channel PID control External given control Valve position feedback control Program segment control	A B C	160 * 80 * 110mm (horizontal) 80 * 160 * 110mm (vertical) 96 * 96 * 110mm (Method)
③ Control output (Note 1)		④ Alarm output (Note 2)
code	Output type (load resistance RL)	code	Alarm channel (relay contact output)
0 1 2 3 4 5 K1 K3 K4 K5 K6 K7 K8 K9	4-20mA(RL≤600Ω) 1-5V(RL≥250KΩ) 0-10mA(RL≤1.2KΩ) 0-5V(RL≥250KΩ) 0-20mA(RL≤600Ω) 0-10V(RL≥4KΩ) RELAY CONTACT OUTPUT Zero crossing trigger pulse output of thyristor Solid state relay driving voltage output Phase shifted trigger output Three phase thyristor zero crossing trigger pulse output Relay forward and reverse output Controllable silicon forward and reverse output (suitable for high-power loads) Solid state relay forward and reverse output	X 1 2 3 4 5	no-output 1-limit alarm 2-limit alarm 3-limit alarm 4-limit alarm 5-limit alarm
		⑤ Power supply
		code	Voltage range
		A D	AC/DC 100～240V(AC/50-60Hz) DC 20～29V
⑥ Additional functions (all of the following functions can be selected, separated by "/", functions that are not selected can be omitted)
Transmission output (Note 2)		Communication output
code	Output channel	code	Communication interface (communication protocol)
1 2 3	1-channel transmission output 2-channel transmission output 3-channel transmission output	D1 D2 D3	RS-485 communication interface (Modbus RTU) RS232 communication interface (Modbus RTU) RS232C printing interface
Feed output
code	Feed output (output voltage)
1P 2P	1-channel feeding output 2-channel feeding output
Suitable for instruments with records
USB transfer function		Extended functionality
code	Transfer function	code	Extended functionality
U	USB card transfer (with 1GB USB flash drive)	SD	SD card expansion (capacity 8GB)

remarks:
1. When selecting external control mode, the control outputs K6, K7, K8, and K9 are not selectable; When selecting valve position feedback control as the control mode, only K7, K8, and K9 can be selected for switch control output; When selecting program segment PID control as the control mode, the control outputs K7, K8, and K9 are not selectable
2. Transmission output and alarm output can be combined, with transmission output+alarm output ≤ 5; When K6 is selected as the control output, the transmission output+alarm output is ≤ 3; When selecting K7 and K8 for control output, the transmission output+alarm output is ≤ 4
3. Example of instrument model:
Example 1: NHR-7310-A-0-2-A-1/D1 (K-even input, 4-20mA output)
Meaning: Single PID control, specifications of 160 * 80 * 110mm, 4-20mA control output, 2-limit alarm output, AC100~240V power supply, 1-channel transmission output, RS485 communication
Example 2: NHR-7330R-A-K7-2-A-1/2P/U (4-20mA input, 4-20mA transmission output)
Meaning: Valve position feedback control, specifications of 160 * 80 * 110mm, relay forward and reverse control output, 2-limit alarm output, AC100~240V power supply, 1 transmission output, 1 feeding output, USB storage function.Input signal type (please specify the signal type when placing an order)

signal type	Range of measurement	signal type	Range of measurement
B S K E T J R N F2 Wre3-25 Wre5-26 Cu50 Cu53 Cu100 Pt100 BA1	400～1800℃ -50～1600℃ -100～1300℃ -100～1000℃ -100.0～400.0℃ -100～1200℃ -50～1600℃ -100～1300℃ 700～2000℃ 0～2300℃ 0～2300℃ -50.0～150.0℃ -50.0～150.0℃ -50.0～150.0℃ -200.0～650.0℃ -200.0～600.0℃	BA2 0～400Ω 0～350Ω 30～350Ω 0～20mV 0～100mV 0～20mA 0～10mA 4～20mA 0～5V 1～5V 0～10V 0-10mA square root 4-20mA square meter 0-5V square root 1-5V square root	-200.0～600.0℃ -9999～99999 Special customization Special customization -9999～99999 -9999～99999 -9999～99999 -9999～99999 -9999～99999 -9999～99999 -9999～99999 Special customization -9999～99999 -9999～99999 -9999～99999 -9999～99999

Output signal type (please specify the signal type when placing an order)

signal type	4-20mA	1-5V	0-10mA	0-5V	0-20mA	0-10V (specially customized)
Load resistance RL	RL≤480Ω	RL≥250KΩ	RL≤960Ω	RL≥250KΩ	RL≤480Ω	RL≥4KΩ