Further user-friendliness with new features such as Quick Access improved from its predecessor.

This truly new generation air tester combines the experience and know-how that Cosmo Instruments has nurtured over many years, with new functions and the newest technology.

Adopted touch panel color LED.
The icon display on the menu screen is simple and intuitive, and the reportedly difficult operation of the instrument has been revamped.
Anyone can use it right away.
The measurement screen is available in 6 different types for different situations, including a simple display and a detailed display, and a display in which you can observe measured waveforms.
The LS-R902 is a new air leak tester that meets a variety of demands.

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Quick Access

Directly access the screen of some screen you often to use.

Fieldbus(Option)

I/O wiring is completed with dedicated cable connectors.Supports smooth communication with PLC with fewer cables.Test results can be output to the network.

Simple to operate with icons.

The menu screen is easily displayed with an icon.
The Home icon can move directly to the measurement screen, and the (i) icon in the upper left displays all sort of information.

Can switch between 6 kinds of measurement screen

The measurement screen is available in 6 different types for different applications/situations, including a simple display and a detailed display.
Also, the display items can be customized.

Each type of settings screen

During setup, a large numeric keypad appears, and all types of settings can be adjusted using the simple screen display.

A complete help screen and help display

In the help screen, complete explanations of computational tools and peripheral devices are available.

Waveform monitor function for test pressure/DP (leak volume)

Displays the test pressure and DP waveforms from measurement start to detection completion.
The ideal time for applying pressure and attempting detection can be found.

Phoenix Contact product is used for input/output connector

Phoenix Contact product was adopted for the connector of the input/output interface.
The connector is very reliable, and the wiring work can be done with a flat-head screwdriver, so that the work efficiency increases.

Automatic setup function

Several setting are necessary for the leak test.
This function provides initial settings for measurement time when first implementing the leak test.

Easy data collection with USB port

Measurement data is automatically saved to USB memory.
Other settings information can also be backed up with USB memory.

Waveform Pneumatic Circuit Diagnosis

Checks for anomalies in the air circuit with workpiece at each operation.
(Attention) Effectiveness varies based on operating conditions, and there are cases when it cannot be used.

Function for switching between display of multiple languages

Supports Japanese, English, Chinese, Korean, German, Spanish, and Portuguese.
Overseas expansion is simple.

Performance improvement function

Safety/Reliability improvement function

Functions related to the interface

Pneumatic Circuit

Differential pressure	Resolving power Precision guaranteed range Excess pressure on sensors Differential pressure	0.1 Pa ±1000 Pa 5 MPa ±2.5% of rdg ±1Pa, however 50Pa or below is ±2Pa
Display units	Test Pressure:	kPa、MPa (Non-SI units available for overseas: PSI, kg/cm2, bar, mbar, mmHg, cmHg, inHg, etc.)
Display units	Leak volume	mL/min, L/min, mL/s, Pa/s, Pa/min, Pa, kPa, Pa・m3/s, E-3 Pa・m3/s, etc. (Non-SI units available for overseas: mmH20, mmHg, inH20, etc.)
Displayed leak volume	3 to 5 digits (floating point), sample rate: 10/second
Number of Channels	32ch（0～31）
Timer setting range	999.9 seconds (resolving power: 0.1 second)
Power Source	AC100～240V±10%, 50/60Hz, 80VAmax
Test pressure source	Uses clean air.The original pressure must be sufficiently higher than the test pressure.
Pilot pressure source	Applies 400 to 700kPa of clean air.
CPU	Cortex-A9 800MHz 512MB DDR3
Pipe connection diameter	Rc1/4 (test pressure supply, pilot air supply, workpiece piping, master piping)
Ambient temperature	Operating temperature 5 to 45°C Storage temperature: -20 to 60°C
Humidity	80 %RH or less No dew condensation
Mass	Approx. 140kg (standard specifications)
Serial communications RS232C-based (D-sub9-pin) 2 port	I/F fixed length output	Leak data and set values are outputted simultaneously
	ID/F fixed length output Standard settings	Leak data and set values are outputted simultaneously
	T/F fixed length output	Only leak data outputted
USB Port	Saving data	Saves decisions, leak values, correction values, test pressure, WK#, CH#, and time on inserted memory. (Automatic file creation every 24 hours)
USB Port	Set values storage	All channel settings, system settings, etc.
Standard accessories	Power cord	For use in Japan: Rating: AC125V/7A, length: 3m For export: Rating: AC240V/10A, length: 2m (CE conformant product)
Standard accessories	Interface connector (I/O), caps (2) for RS-232C, USB cover, test report, traceability documents, user manual
Peripherals	Master chamber, leak master, bypass unit, external exhaust valve, etc.

■ Model LS-902(ABC.D.E)

A, B, D and E in the model notation are mandatory.

		Bypass Circuit Ready	with regulator	B1	Bypass Circuit Unit is sold separately.
A	Measurement Circuit	Intelligent 1 Pneumatic Circuit		A1	Large flow circuit with great sensor protection features
		Intelligent 2 Pneumatic Circuit		A2	Equipped with an equalization valve and additional self-check features to A1 circuit
		Micro volume Circuit		AS01	For the parts whose volume is approx. 10 mL or smaller and the leak specifications are quite small.
		Small Volume A1 Circuit		AS1	For the parts whose volume is approx. 100 mL or smaller and high detection performance is required.
		Secondary Pressure Circuit		C	For external pressure (secondary pressure) test
B	Test pressure range	Precision regulator	Medium pressure	M	Test pressure range 50 to 800 kPa (PS 1 MPa, regulator 0.8 MPa)
			Low pressure	L	Test pressure range 10 to 100 kPa (PS 100 kPa, regulator 200 kPa)
			Micro pressure	L02	Test pressure range 5 to 20 kPa (PS 20 kPa, regulator 200 kPa)
			Vacuum pressure	V	Test pressure range -5 to -100 kPa (PS -100 kPa, regulator -100 kPa)
			High pressure	H20	Test pressure range 2.0 MPa or less (PS 2 MPa, without regulator)
			Extremely high pressure	H49	Test pressure range 4.9 MPa or less (PS 5 MPa, without regulator)
		E/P regulator	Medium pressure	MR	Test pressure range 50 to 800 kPa (PS 1 MPa, regulator 0.9 MPa)
			Low pressure	LR	Test pressure range 10 to 95 kPa (PS 100 kPa, regulator 100 kPa)
			Vacuum pressure	VR	Test pressure range -5 to -75 kPa (PS -100 kPa, regulator -80 kPa)
C	Option	External Exhaust Valve Ready		G	External Exhaust Valve is sold separately.
		Calibrator	Come with Cal driving valve for Leak Master *1	J	Leak Master is sold separately.
			Come with ALC *2	K05	MAX. Volume Change 0.5 mL	For Low, Medium and High press	Small volume part
				K1	MAX. Volume Change 1 mL	For Low, Medium and High press	Small to Medium volume part
				K4	MAX. Volume Change 4 mL	For Low, Medium and Vacuum press	Medium to Large volume part
				K10	MAX. Volume Change 10 mL	For Low, Medium and Vacuum press	Large volume part
		Bypass Circuit Ready	without regulator	B	Bypass Circuit Unit is sold separately.
		Pressure/Vacuum Pressure Sensor		PV1	Equipped with a Pressure/Vacuum pressure sensor Low pressure: ±100 kPa Medium pressure: -100 to 1000 kPa
		Blow Orifice Φ1.2		F1	Required when the test pressure is -10kPa to -4 kPa or AS01
		E/P Regulator Ready		R1	E/P Regulator Ready With Output Connector
		Nylon Filter Housing		RX02	Filter housing for the pilot pressure port is nylon.
		Nylon Filter Housing		RX03	Filter housings for the pilot pressure and test pressure ports are nylon.
		Filter replacement		RX06	Pilot Pressure Port Comes with Filter Only
		TCU *3		RX09	TCU Ports (IN, OUT)
		TCU *3		RX10	TCU Ports (IN, OUT) + TCU set
		Optional Number of Channels		RX11	100 channels
		Fieldbus		N2	Device NET
				N3	CC Link
				N4	Profibus
				N5A	EtherNet IP
				N6A	Profi NET
		DPS 10 kPa		D4	Sensor range: ±10 kPa Resolution: 1 Pa
		NPT Fittings		PX1	NPT Fittings
D	Units and Others			UX1	SI units
				UX2	All units (For overseas only)
				UX3	UL certified
E	Power Cable			VA	125 V (3 m)
				VE	250 V (2 m)
				VK	250 V (2 m) (Only for Chinese customers)

*1 Not available for H20 and H49 models
*2 ALC = Auto Leak Calibration
*3 TCU = Temperature Compensation Unit

Overview

Helps reduce measurement errors and false rejects due to part temperature effects.
Compensation graphs viewed on large LCD screen.
Easy setting for mapping of the graphs.

Temperature compensation mapping should be adjusted on the actual production line.

The temperature difference between the part and the environment is measured to carry out the Temperature Compensation according to the correlation between the temperature difference and measurement errors.

Major applications

Post-cleaning leak tests, engine parts (cylinder head, cylinder block)
(a correlation should exist in the differential pressure between the temperature of Work and the applied air)

Example of Temperature Compensation Data

Tested part	Oil pan (Whole)
Test pressure	100kPa
Equivalent internal volume	2500 mL
Leak specification	10 mL/min
Test timers	Pressurization 22 secs. Equalization 3 secs. Stabilization 5 secs. Detection 3 secs.