Leak Master LM-1C

Features

※There is a LM-1C manufactured to the specified test pressure and leak volume, and a LM-1C-J1 Series with specified leak volume.

●Create the specified leak amount at the specified test pressure

●Manufacturing precision within 5% of the requested leak volume.
However, for less than 2mL/min, manufacturing precision should be ±10～20%.

●Easily and reliably run a sensitivity check of air leak tester.

●The change in leak volume is small, so it can be used stably over the long term

●Can also be used for external pressure detection (secondary side measurement) method

●Can be directly connected to our air leak tester calibration port

●By using dedicated adapter, connection is possible when doing piping from workpiece to tester

●By changing the leak master to a dedicated seal plug, it is possible to easily return to normal inspection status (no leak status)

●Traceability certificate is available upon a request

Example of attaching to our air leak tester and using

LM-1C Series Specifications

The LM-1C Series is used as an ideal determination device, so it can be manufactured with your desired leak volume.Please specify test pressure and leak volume in the range below when ordering.

Test Pressure		Leak volume
Positive pressure	1 ～ 9.9 kPa	0.1 ～ 20 mL/min
	10 ～ 99 kPa	0.1 ～300mL/min
	100 ～ 999 kPa(※1)	0.1 ～500mL/min
Vacuum pressure	-1 ～ -9.9 kPa	0.1 ～ 20 mL/min
	-10 ～ -49 kPa	0.1 ～ 100 mL/min
	-50 ～ -89 kPa	0.1 ～ 200 mL/min

（※1）Test pressure 1MPa or above is supported with LM-1 AH special order.
Manufactured with requested leak volume in the below accuracy.
・For flow rate 2 mL/min or above, manufactured within  5% accuracy
・For flow rate 0.8 mL/min or above, manufactured within  10% accuracy
・For flow rate less than 0.8 mL/min, manufactured at  20% accuracy
Configuration: LM-1C (with filter joint/clear cover)
Accessories (adapter/seal plug/filter element/O-ring)
Price 38,000 yen, taxes not included (0.1mL/min is 42,000 yen, taxes not included)

＜About Flow＞
Cosmo Instruments displays the leak volume as “equivalent flow” and “conversion flow” The requested leak volume is manufactured with equivalent flow.
■E.FLOW（Equivalent Flow）: Flow measured at 20°C and 1atm. The flow is not affected by the environmental condition.
■C.FLOW（Conversion Flow）: Flow measured at the ambient temperature and pressure that is converted to the flow at 20°C and 1atm. Flow varies depending on the environmental condition

LM-1C-J1 Series Specifications

LM-1C-J1 Series are standardized Leak Masters as shown on the table below.
A data sheet showing actually measured or calculated flows at the test pressure points in the table below will be enclosed.
This series are an ideal standard for the calibration of the air leak tester sensitivity.

■ Cells in gray are actually measured flow.
□ Cells in white are calculated flow.

Test Pressure	LM-1C-J1-1	LM-1C-J1-2	LM-1C-J1-5	LM-1C-J1-10	LM-1C-J1-20	LM-1C-J1-50	LM-1C-J1-100	LM-1C-J1-200
(kPa)	(mL/min)	(mL/min)	(mL/min)	(mL/min)	(mL/min)	(mL/min)	(mL/min)	(mL/min)
10	0.08	0.16	0.39	0.78	1.6	4.66	10.33	23
20	0.16	0.32	0.78	1.56	3.19	9.32	20.7	45.9
30	0.25	0.5	1.24	2.48	5.03	14.46	31	65.3
40	0.34	0.68	1.7	3.39	6.87	19.6	41.4	84.7
50	0.43	0.87	2.16	4.31	8.71	24.7	51.8	105.8
60	0.54	1.09	2.7	5.4	10.84	29.8	61.7	126.8
70	0.65	1.31	3.25	6.49	12.96	34.9	71.6	145.3
80	0.77	1.52	3.79	7.57	15.09	40	81.2	163.8
90	0.88	1.74	4.34	8.66	17.21	45.1	90.8	182
100*	0.99	1.96	4.88	9.75	19.34	50.2	100.4	200.1
150	1.74	3.31	8.18	16.42	31.7	61.1	147.1
200	2.49	4.65	11.47	23.1	44	102	193.7
250	3.49	6.54	15.52	31	58	128.6
300	4.5	8.44	19.57	39	71.9	155.3
350	5.5	10.33	23.6	46.9	85.9
400	6.5	12.22	27.7	54.9	99.9
450	7.75	14.45	32.2	63.9	115.2
500	9.01	16.68	36.7	72.9	130.5
550	10.26	18.9	41.2	81.9	145.8
600	11.51	21.1	45.7	90.9	161.2

(The flow rates in the table above are some examples)

＊M-1C-J1 Series are manufactured within  5% accuracy of each standard flow at test pressure of 100 kPa except for 1 mL/min.For flow rate 1 mL/min, manufactured within  10% accuracy.
●　Configuration: 　　 LM-1C-J1 (with filter joint/clear cover), Accessories (adapter/seal plug/filter element/O-ring)
＊Purchase the adapter and seal plug when connecting Leak Master between tested part and WORK port.
●　Price JPY 38,000

Converting adapter

Those Converting adapters for Leak Master are available:

Part Number	Male Screw Size	Female Screw Size	Use
7201ALAL	R1/8	M10×1.5	Connecting LM-1C in the circuit between the part and the WORK port (Rc1/8)(※1)
7201ALAZ	R1/4	M10×1.5	Connecting LM-1C in the circuit between the part and the WORK port (Rc1/4)　(※2)
7201ALAQ	NPT1/8	M10×1.5	Connecting LM-1C in the circuit between the part and the WORK port (US standard NPT 1/8)
7201ALAX	M10×1.5	RC1/4	Connecting R1/4 fitting to the Calibration port of Cosmo’s Leak tester.
7201ALAV	M10×1.5	RC1/8	Connecting R1/8 fitting to the Calibration port of Cosmo’s Leak tester.
7201ALAW	M10×1.5	NPT1/8	Connecting US standard NPT1/8 fitting to the Calibration (CAL) port of Cosmo’s Leak tester.