PRODUCT INFORMATION

AIR LEAK TESTER

Compact body with excellent features.
Differential pressure Air Leak Tester specialized inoperability and cost performance

LS-1866
Air Leak Tester
LS-1866 is a compact, lightweight, easy-to-handle differential
pressure air leak tester. The Master-Preset and Noise Reduction
improve detection and reduce test time. The latest enhanced features
such as multi-channel, direct reading of leak volume are available.

■ Main Features

Intelligent 1 Pneumatic Circuit

Master-PresetRemoves drift and noise components from the value
being measured and extracts only the true leakcomponent. Improves the yield and reduces
measurement time.
D1

D1 - D2 = Drift(Master Preset value)

Differential
pressure

The leak tester's air-operated
valves ensure reliable sealing
and high flow rates. The basic
circuit is the Intelligent 1
Pneumatic Circuit withexcellent performance andreliability that checks valve
operations and sensor
sensitivity. The leak tester isalso equipped with a functionthat prevents water, oil, andforeign matter adhering to theworks from entering themeasurement circuit.

Drift+Leak only
D2
Leak only

GHG BAL
(1)

DET
(1)

STBBAL(2)DET(2)Leak Calibration
Calibration port is provided for easy setting andchecking of leaks. Leaks can be easily checked with a
Leak Master (LM-1C).

Quick Mounting Brackets
The main body can be easily installed and removed
with two screws on the front.

■ Functions
High Resolution

Down to 0.1 Pa can be displayed in differential
pressure display.

Two-Level Limit
Setting

Small Leak Limit and Large Leak Limit can beset for DET

Multi-Channels

16 channels

Self CheckChecks differential pressure sensitivity
automatically by blockage check in every test.

Leak Display

Converts the differential pressure into leak rate
to display in units of mL/min by calibration.

Air-Blow

Prevents interference noise due to differences in
exhaust timing when multiple testers are usedon the same machine.

The pneumatic circuit is cleaned at the end of
every leak test.

ExhaustInterference
Prevention

Pressure
Monitoring

Enables/Disables pressure monitoring withthe upper and lower pressure limits.

Noise Reduction(NR)

Removes noises by repeating measurements,
allowing for tighter limit settings.

External Exhaust
Valve

Prevents water/oil from entering. The External
Exhaust Valve is separately required.

Compensation

Master-Preset, Fixed Value CompNPN-PNP Common
NPN and PNP available for I/O.
I/O Port

LS-1866-958B1-E

1DPS■ Specifications
Resolution

0.1 PaDisplay Range±999 Pa

Accuracy *1±2.5% of rdg ±1 Pa, For 50 Pa or less: ±2 Pa

Proof Pressure 5 MPa

Pressure
SourceUse clean air.
Sufficiently higher than the test pressure and thepilot pressure.

Pilot Pressure
Setting

Filter regulator for pilot pressure
Setting range 400 to 700 kPa

Leak Display Range

Differential pressure unit: 0.00 to ±999 Pa
Flow unit: 0.00 to ±999 mL/min

Timer Setting
Range

0 to 999.8 s (Resolution: 0.1 s)
999.9 s means no time limitation

Number of Channels

16 channels (#0 to #15)

Port Size

Timer Setting Range

0 to 999.8 s (Resolution: 0.1 s)
999.9 s means no time limitation

Rc1/4 (pressure source, WORK and MASTER ports),
6 mm one-touch joint (pilot pressure source)

Control I/O port Open collector port (NPN- PNP)

Power Source

100 to 240 VAC ±10% at 50/60 Hz, 70 VA max

Ambient Temperature

5 to 45 °C

Communication RS-232C serial communication port
Function
Print mode availableHumidity

80 %RH or less / no dew condensation

Weight

Test pressure is M, L or V: Approx. 6.3 kg
Test pressure is H10 or H15: Approx. 8.1 kg*1*2StandardAccessories

For the option of DPS Range ±10 kPa:
±5% of rdg ±0.01 kPa. However, for 0.2 kPa or less, ±0.02 kPa.
Not provided for Vacuum.

Oil-mist separator *2 and regulator, Filter regulator forpilot pressure, Quick Mounting Brackets, I/O
connector, Power cable, Inspection Record of theproduct, Calibration Certificate of the standard,Operation Manual CD■ Model Classifications
ModelLS-1866(ABC.D)

Model codes A, B, and D are mandatory.

APneumatic Circuit

A1: Intelligent 1 Pneumatic Circuit, AS01: Micro Volume Circuit

B

Test Pressure Range

M: 50 to 800 kPa, L: 10 to 95 kPa, V: -5 to -100 kPa *1, H10: 100 to 990 kPa, H15: 0.1 to 1.5 MPa

COptions

G: External Exhaust Valve Ready *2, F1: Blow Orifice Φ1.2 *3, D4: Differential pressure range ±10 kPa

Power Cable

VA: 125 VAC 3 m, VE: 250 VAC 2 m, VK: 250 VAC 2 m (Only for Chinese customers)

D*1*2*3For [Vacuum (V)], the standard air-operated valve is the vacuum guard type.
Standard specification. Not selectable for [Vacuum (V)].
Standard specification for [Micro Volume Circuit (AS01)]. Also, select when the test pressure is -10 to -4 kPa.

■ Pneumatic Circuit■ External AppearanceStandard Pneumatic Circuit: Intelligent 1 Pneumatic Circuit

Dimensions (W165 x H208 x D240 mm)■ Common Peripherals
LM-1C Leak Master
Micro-leak generator that stably generates aconstant leak. Use it to check tester
sensitivity and to measure equivalentinternal volume.

MCG3-M

Master Chamber

In the master comparison method, a nonleaking work is used as a master. TheMaster Chamber can be used instead asa master.

Cosmo Instruments Co., Ltd.

2974-23 Ishikawa, Hachioji, Tokyo 192-0032 Japan
China: Cosmo (Shanghai) Trading Co., Ltd.
+86-(0)21-6575-6880
Shanghai, Tianjin, Guangzhou, Chongqing, Changchun, and Wuhan
Korea: Cosmo Korea Co., Ltd.
+82-(0)32-623-6961
Taiwan: Taiwan Cosmo Instruments Co., Ltd.
+886-(0)2-2707-3131
Malaysia: COSMOWAVE SDN.BHD.
+60-(0)3-51626677
Thailand: Cosmowave Technology Co., Ltd.
+66-(0)2-7361667
Indonesia: Pt. Cosmowave+62-(0)21-89328750
Vietnam: Cosmowave Technology Co.,Ltd.
+84-(0)24-37876085

External Exhaust Valve

Install between the leak tester and thework to prevent water/oil etc. fromentering the leak tester when exhausting.

http://www.cosmo-k.co.jp/
Phone: +81-(0)42-642-1357 Fax: +81-(0)42-646-2439
India: Cosmo Instruments India Pvt. Ltd. Head Office+91-(0)124-421-0946
South Zone Regional Office, Chakan Office, Chennai Office, Gujarat Office
Germany: Cosmo EU Solutions Technology GmbH+49-(0)212-383671-71
USA: Cosmo Solutions Technology, Inc.
+1-248-488-2580
Mexico: Cosmo De Mexico+52 (472) 117-2157
Monterrey Office+52 (81) 1104-2479
Brazil: Tex Equipamentos Eletronicos Ind. Com. Ltda.
+55-(0)11-4591-2825
Australia: Industrial Research Technology Pty. Ltd.
+61-(0)412-176-674

LS-1866-958B1-E2