PS-7 series single channel gas detector

Item 0

PS-7 - Single channel gas detector

A suction type detector for indoor use. Sensor units are factory calibrated and delivered to site ready for use.

Optional communication module for DeviceNet interface or PoE, ModBus/TCP.

Features

Sensor units are already calibrated when delivered to the site. Sensor units only need zero check and operation checks after being replaced, and they are ready to monitor gas concentration.
Used sensor units are returned when obtaining new ones so they can be recycled.
Sensor units and gas flow path can be replaced without tools.
All functional parts are in modules for easy replacement.
The Cosmos assists in reliable management of the timing for sensor unit and gas flow path replacement.

Gases

Detectable gases		Full Scale	Detection Principle	Model No.
Silane	SiH4	5 / 25ppm	Electrochemical	CDS-7
Phosphine	PH3	1ppm	Electrochemical	CDS-7
Diborane	B2H6	500ppb	Electrochemical	CDS-7
Arsine	AsH3	250ppb	Electrochemical	CDS-7
Hydrogen selenide	H2Se	250ppb	Electrochemical	CDS-7
Disilane	Si2H6	25ppm	Electrochemical	CDS-7
Dichlorosilane	SiH2Cl2	25ppm	Electrochemical	CDS-7
Germane	GeH4	1ppm	Electrochemical	CDS-7
Ammonia	NH3	100ppm	Electrochemical	CDS-7
Hydrogen fluoride	HF	10ppm	Electrochemical	CDS-7
Phosphorus trifluoride	PF3	10ppm	Electrochemical	CDS-7
Hydrogen chloride	HCl	5 / 25ppm	Electrochemical	CDS-7
Hydrogen bromide	HBr	10ppm	Electrochemical	CDS-7
Fluorine	F2	5ppm	Electrochemical	CDS-7
Dichlorine	Cl2	5ppm	Electrochemical	CDS-7
Chlorine trifluoride	ClF3	1ppm	Electrochemical	CDS-7
Ozone	O3	1ppm	Electrochemical	CDS-7
Carbon monixide	CO	250ppm	Electrochemical	CDS-7
Hydrogen sulfide	H2S	50ppm	Electrochemical	CDS-7
Nitrogen trifluoride	NF3	100ppm	Electrochemical with pyrolyzer	CDS-7
Carbon tetrachloride	CCl4	100ppm	Electrochemical with pyrolyzer	CDS-7
Hydrogen	H2	500 / 1000ppm	Hot wire semiconductor	CHS-7
Oxygen	O2	25vol%	Galvanic cell	COS-7

*Please contact your representative for gases other than those listed.

Specifications / Approvals

Model	PS-7
Model	Standard Type	With a Pyrolyzer
Detection Principle	Electrochemical cell, Hot wire semiconductor, Galvanic cell	Pyrolysis + Electrochemical cell


Sampling Method	Extractive type (Sample flow rate: 0.5L/min, automatic control)
Sampling Tubing*1	Teflon – External diameter: 6mm, Internal diameter: 4mm, Tubing length: 20m or less
Gas Concentration Indication	4-digit LCD (with measuring unit), 20 – step bar graph
Alarm Indication	Gas alarm (1st and 2nd atage)
	– Alarm: Red LED lamp flashing
	LCD – ALARM1 for 1st stage, ALARM1 and ALARM2 for 2nd stage
	Low flow alarm
	– Clogging indication: LCD – Flow sign rotates slowly
	– Alarm: Yellow LED lamp flashing
	LCD – FLOW indication, Flow sign stops rotating
	Sensor trouble alarm/Incorrect sennsor insertion alarm
	– Alarm: Yellow LED lamp flashing
	LCD – SENS. indication
	Pyrolyzer wire break alarm*2
	– Alarm: Yellow LED lamp flashing
	LCD – CONV. indication
External Output	– Gas concentration analog output: 4-20 mADC (shared with the power source
	negative terminal)
	– Gas alarm contact (1st and 2nd stage): 1a no-voltage contact/Non-latching
	– Trouble alarm contact (Open collector/Non-latching)
Application Cable	3C or 4C shielded control cable (φ8-11mm) x 2
Operating Temperature	0 to 40 °C (No sudden change)
/ Humidity	30 to 85 %RH (No condensation)
Power Source	24 VDC ±10%
Power Consumption	Approx. 7W
Dimensions	W62 X H124 X D143 mm (excluding options and protrusions)
Weight	Approx. 1.0kg
Installation	Wall mount
Approval	CE, SEMI (Semiconductor Equipment and Material Standard)

*1 Teflon is recommended. But it depends on operating conditions when the gas adsorption capacity is high, so contact us for more information. The specifications above are subject to change without prior notice.

*2 Only for the model with a pyrolyzer.

CE Declaration of Conformity

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