Hongrun NHR-A31 series current input detection terminal isolation gate-Global supplier

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Hongrun Science and Technology Park, Fuzhou Development Zone, Shunchang County, Fujian Province

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Hongrun NHR-A31 series current input detection terminal isolation gate

This product converts current signals from hazardous areas into voltage, current, RS485 signals, or switch signals, and isolates them from hazardous a

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Product details

Product Introduction

Single and dual input, single and dual output
The output signal type needs to be specified
The output signal is an analog signal, RS-485 signal, or switch signal

summary

This product converts voltage signals from hazardous areas into voltage, current, RS485 signals, or switch signals, and isolates them from hazardous areas to safe areas. The product requires independent power supply, with input/output/power isolation. Can be used in voltage signal output devices.

safety certification

Certificate No	CNEx11.0455
Explosion proof sign	[Exia] IIC (National Explosion proof Safety Supervision and Inspection Station Certification for Instruments and Meters)
Authentication parameters
terminal	8-7, 11-10
Maximum allowable voltage	Um=250V
voltage	Uo=13.65V
electric current	Io=9mA
power	Po=31mW
capacitance	Co=0.5μF
inductance	Lo=150mH

Wiring diagram

Analog output wiring diagram

RS485 output wiring diagram

Switching output wiring diagram

terminal number		Terminal Description
Safe Zone (Green)	1	OUT1（+）/B
	2	OUT1（-）/A
	3	OUT2（+）
	4	OUT2（-）
	5	POW（+）
	6	POW（-）
Dangerous Zone (Blue)	7	In1（-）
	8	In1（+）
	10	In2（-）
	11	In2（+）

Structural Outline Drawing

EVT: Work indicator light: When the instrument is working normally, the indicator light is green; When there is a fault alarm in the input signal; The indicator light is red

35mm guide rail installation, please pay attention to stable and firm positioning during installation

Please install it vertically as much as possible to facilitate heat dissipation inside the instrument

Technical Parameter

power supply
Rated working voltage range	DC24V±10%
power consumption	RS-485 output: ≤ 0.7W Analog output: ≤ 1.4W (single channel), ≤ 1.8W (dual channel) Switching output: ≤ 1.4W
Dangerous side
Input Signal Type	0-5V, 1-5V, 0-5V square root, 1-5 square root (Determine or configure programming when placing an order and program it yourself)
Input impedance	≥510KΩ
Safety side
Output signal type	Analog output, RS-485 signal output, switch output
Output load characteristics	When outputting current: RL ≤ 500 Ω, when outputting voltage: RL ≥ 250K Ω
RS485 signal output	Transmission delay ≤ 10 μ s, signal transmission rate ≤ 9.6kbps
Switching Output	Relay output driving capability: 125VAC/0.6A, 30VDC/2A Relay response time:<5ms Transistor collector output: High level VCC (≤ 30V), low level ≤ 2.5V Transistor emitter output: high level VCC-2.5V, low level ≤ 0.5V
Measurement accuracy	0.2% FS ± 1 word
Insulation strength
Local security end and non local security end	2500V，a.c; 1min
environmental condition
Environmental temperature	0～50℃
ambient humidity	5% to 95% RH (non condensing)
standard
electromagnetic compatibility	Compliant with GB/T18268 Industrial Equipment Application Requirements

Instrument selection

					7		8		9
Voltage input detection terminal isolation gate NHR-A31				-	□	-	□	/	□
position	specifications		notes		\| \| \| ↓ □		\| \| \| \| \| \| \| \| \| \| \| \| \| ↓ □	/	\| \| \| \| \| \| \| \| \| \| \| \| \| ↓ □
7	<Input>
	Input I/Input II<Select code from list>
	code	Type
	X	No input (limited to the second channel only)
	28	0-5V
	29	1-5V
	34	0-5V square root
	35	1-5V square root
8/9	<Output>
	Output I/Output II (select code from list)
	code	type
	X	No output (limited to the second channel only)
	0	4-20mA	analog output
	1	1-5V
	2	0-10mA
	3	0-5V
	4	0-20mA
	5	0-10V (non switchable)
	D1	RS485 output (limited to channel I only)	485 output
	K1	Relay circuit contact	Switching Output
	K2	transistor	Switching Output

Note: When the instrument has two outputs, there are three modes to choose from:
a、 Analog output+Analog output
b、 485 output+analog output
c、 Switching output+Switching output
Model example: NHR-A31-29/29-0/0
Voltage input detection terminal isolation gate, two input signals are 1-5V, and two output signals are 4-20mA.

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