Maeda Koki MKCM Type Air Signal

Made in Japan
Manufacturer: Maeda Machinery Research Institute Ltd.
Model: MKCM Type

Features

With flow switch
Detects the flow of fluid and turns the switch ON or OFF at the specified flow rate.
The switch remains fixed, so you cannot change the setting later. You can easily see the flow at a glance.A flow detector that checks the flow of fluid by the movement of a float inside a transparent tube.
With protective cover
The metal protective cover reduces the possibility of damage from external impacts.
You don’t need to follow any specific installation orientation. Thanks to the internal spring, you can freely adjust the installation orientation, whether it’s upward, downward, or sideways.

Model	Dimensions (mm) [The overall width is the casting surface, so there may be individual differences in dimensions]					Flow rate (L/min)
Model	Connection port size	Full length	Overall width	Depth	Minimum inner diameter φmm	Specified range of operating flow rate	Maximum
MKCM20-1TA-OFF	Rc1/8	80	30	22	6.5	1–40	300
MKCM20-1TA-ON	Rc1/8	80	30	22	6.5	1–40	300
MKCM20-2TA-OFF	Rc1/4	80	30	22	6.5	1–40	300
MKCM20-2TA-ON	Rc1/4	80	30	22	6.5	1–40	300
MKCM20-3TA-OFF	Rc3/8	86	30	25	6.5	1–40	300
MKCM20-3TA-ON	Rc3/8	86	30	25	6.5	1–40	300
MKCM30-2TA-OFF	Rc1/4	100	44	32	9.5	5–100	600
MKCM30-2TA-ON	Rc1/4	100	44	32	9.5	5–100	600
MKCM30-3TA-OFF	Rc3/8	104	44	32	9.5	5–100	600
MKCM30-3TA-ON	Rc3/8	104	44	32	9.5	5–100	600
MKCM30-4TA-OFF	Rc1/2	110	44	32	9.5	5–100	600
MKCM30-4TA-ON	Rc1/2	110	44	32	9.5	5–100	600
MKCM35-4TA-OFF	Rc1/2	124	49	44	13.5	30–150	1500
MKCM35-4TA-ON	Rc1/2	124	49	44	13.5	30–150	1500
MKCM35-6TA-OFF	Rc3/4	124	49	44	13.5	30–150	1500
MKCM35-6TA-ON	Rc3/4	124	49	44	13.5	30–150	1500
MKCM45-6TA-OFF	Rc3/4	142	62	50	18.0	50–300	3000
MKCM45-6TA-ON	Rc3/4	142	62	50	18.0	50–300	3000
MKCM45-8TA-OFF	Rc1	142	62	50	18.0	50–300	3000
MKCM45-8TA-ON	Rc1	142	62	50	18.0	50–300	3000

MKCM Type

Specification	Details	Additional Information
Fluid	Gas
Operating Flow Rate	Please specify a flow rate value within the specified operating flow rate range above.
Connection	Rc female thread	Change to R male thread. Combination with R male thread is also possible.
Heatproof Temperature	Maximum 60°C	Heat-resistant specifications (maximum 100°C) are also available.
Pressure Resistance	1MPa	Pressure-resistant specifications (up to 5 MPa) are also available.
Maximum Operating Voltage	DC, AC 300V
Maximum Current Used	DC, AC 0.5A
Contact Capacity	50VA
Material	Transparent Tube	Acrylic; manufacturers use brass tube (C3604) for heat-resistant and pressure-resistant products.. Heat-resistant and pressure-resistant products have a float that cannot be visually inspected.
	Protective Cover	BC (gunmetal); Aluminum versions are also available.
	Fittings	C3604 (Brass); SUS products are also available.
	Spring	SUS304
	Magnet Float	Use Acrylic or Nylon; choose Aluminum depending on the specifications.
	O-ring	Use Nitrile Rubber; select fluororubber for heat and pressure resistant specifications.
	Reed Switch	Commercial goods
	Lead Wire (standard 200mm)	Commercial goods; You can also specify the length of the lead wire and change to a cab-tire cord.

Reed switches are magnetic switches, so use them in a place where they will not be affected by magnetic fields.
If there is a magnetic material such as iron near the reed switch, it may cause it to malfunction.

When wiring the flow switch, pay special attention to prevent overcurrent from flowing through the reed switch due to poor earth wiring, etc.
Please use the flow switch as an alarm detector whenever possible.
If you use it in conjunction with other electrical equipment, please take into consideration the effects of malfunction.The lifespan of the reed switch will be extended if the operating voltage and current are kept as low as possible.
(Normally, the switch can be operated approximately 1 million times under conditions of 100V 0.5A.)