High Precision Digital Pressure Switch, Rc1/ 8

Lower cost digital pressure switch with takeover diameter Rc 1/ 8, high precision digital pressure switch has optional pressure range 0.0~101.0kPa/ -100.0~100.0kPa/ -100.0~1.000MPa, NPN or PNP open collector 1 output, NPN or PNP open collector 2 outputs can be chosen. High accuracy pressure switch has advantaged of simple operation, anti-vibration, high control accuracy and long service life.

SKU: CCHN-DPS-30

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Delivery date: 6-25 days

Overview

Factory price digital air pressure switch featuring withstand pressure 500kPa- 1.5MPa, ±1% F.S. high acuuracy. The pressure switch is widely used in factory automation, chemical textile industry, medical equipment, chemical industry and other fields.

Features

Numbers are displayed in 2 colors.
Space-saving installation.
Digital pressure switch can be copied to 10 pressure switches at the same time.

Specification

Model			CCHN-NZSE30A	CCHN-NZSE30AF	CCHN-NISE30A
Rated pressure range			0.0~101.0kPa	-100.0~100.0kPa	-100.0~1.000MPa
Display/ Set pressure range			10.0~105.0kPa	-105.0~105.0kPa	-105.0~1.050MPa
Withstand pressure			500kPa	500kPa	1.5MPa
Display/ Minimum unit setting			0.1kPa	0.1kPa	0.001MPa
Switch output		Output types	NPN or PNP open collector 1 output, NPN or PNP open collector 2 outputs
		Maximum load current	80mA
		Maximum applied voltage	28 V (at NPN output)
		Residual voltage	1 V or less (with load current of 80 mA)
		Response time	2.5 ms or less (with anti-chattering function: 20, 100, 500, 1000, 2000 ms)
		Short circuit protection	Yes
Hysteresis		Hysteresis mode	Variable (0 or above)
		Window comparator mode
Analog output	Voltage output	Output voltage (Rated pressure range)	1~5V ± 2.5% F.S.		1~5V ± 2.5% F.S.
		Linearity	±1% F.S.
		Output impedence	Approx. 1kΩ
	Current output	Output voltage	4~20mA±2.5% F.S		2.4~20mA±2.5% F.S.
		Linearity	±1% F.S.
		Load impedance	Maximum load impedance: Power supply voltage 12V: 300Ω, Power supply voltage 24V: 600Ω Minimum load impedance: 50Ω
Environment		Enclosure	IP40
		Operating temperature range	Operating: –5 to 50°C, Stored: –10 to 60°C (No freezing or condensation)
		Operating humidity range	Operating and stored: 35 to 85% RH (No condensation)
		Withstand voltage	AC1000V for 1 minute between terminals and housing
		Insulation resisitance	50MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
Fluid			Air, Non-corrosive gas, Non-flammable gas
Takeover diameter			Rc1/ 8
Power supply voltage			12 to 24 VDC ±10%, Ripple (p-p) 10% or less (With power supply polarity protection)
Current consumption			40 mA or less
Repeatability			±0.2% F.S.±1 digit
Display			4-digit, 7-segment, 2-color LCD (Red/Green)
Display accurancy			±2% F.S. ±1 digit (at 25°C ±3°C ambient temperature)
Indicator light			Lights up when output is turned ON. OUT1: Green; OUT2: Red
Lead wire with connector			±2% F.S. (at 25°C in an operating range of -5 to 50°C)
Temperature characteristics			±2% F.S. (25°C reference)
Lead wire			Oilproof heavy-duty vinyl cable, 3 cores ø3.5, 2 m 4 cores; Conductor area: 0.15 mm2 (AWG26); Insulator O.D.: 1.0 mm
Standards			CE, UL/ CSA, RoHS

Internal Circuits and Wiring

Digital pressure switch wiring diagram of NPN 1 output

Digital pressure switch wiring diagram of NPN 2 output

Dimension (mm)

Digital pressure switch dimension

Details

Tips: Digital Pressure Switch Working Principle.

The digital pressure switch is mainly used to detect the pressure of the relevant detection part. It works by sensing the pressure of the external environment through built-in sensors. When the external pressure value exceeds or falls below the safety critical point, the sensor membrane changes, and then a control signal is sent to guide the switch to change. Therefore, when the ambient pressure returns to normal and critical, the inner membrane of the sensor will move to the original position, making the switch reset automatically, and then detect the medium pressure signal through the special CPU modular signal processing technology.