MAEDA KOKI MKCM Type Oil Signal

Manufacturer: Maeda Machinery Research Institute Ltd.
Model : MKCM type

Features

Flow switch detects the flow of fluid and turns the switch ON or OFF at the specified flow rate.
The switch is fixed (the setting cannot be changed later).
A flow detector that checks the flow of fluid by the movement of a float inside a transparent tube that allows you to see the flow of oil at a glance.
Comes with a protective cover. The metal protective cover reduces the possibility of damage from external impacts .
No need to worry about the installation direction.
A spring is used inside, so the installation position can be freely changed, such as upward, downward, or sideways.

Model	Dimensions (mm) [ The overall width is the cast surface, so there may be individual differences in dimensions]					Flow rate (L/min)
	Connection size	full length	Width	Depth	Minimum inner diameter φmm	Specified range of operating flow rate	maximum
MKCM20-1TL-OFF	Rc1/8	80	30	twenty two	6.5	0.005 (5cc) to 2	5
MKCM20-1TL-ON
MKCM20-2TL-OFF	Rc1/4	80	30	twenty two	6.5	0.005 (5cc) to 2	5
MKCM20-2TL-ON
MKCM20-3TL-OFF	Rc3/8	86	30	twenty five	6.5	0.005 (5cc) to 2	5
MKCM20-3TL-ON
MKCM30-2TL-OFF	Rc1/4	100	44	32	9.5	0.05 (50cc) to 5	10
MKCM30-2TL-ON
MKCM30-3TL-OFF	Rc3/8	104	44	32	9.5	0.05 (50cc) to 5	10
MKCM30-3TL-ON
MKCM30-4TL-OFF	Rc1/2	110	44	32	9.5	0.05 (50cc) to 5	10
MKCM30-4TL-ON
MKCM35-4TL-OFF	Rc1/2	124	49	44	13.5	1-10	25
MKCM35-4TL-ON
MKCM35-6TL-OFF	Rc3/4	124	49	44	13.5	1-10	25
MKCM35-6TL-ON
MKCM45-6TL-OFF	Rc3/4	142	62	50	18.0	3–15	50
MKCM45-6TL-ON
MKCM45-8TL-OFF	Rc1	142	62	50	18.0	3–15	50
MKCM45-8TL-ON

Model
MKCM □□ – □ TL-OFF(ON)

Oil type □
(or oil viscosity □ cSt)

Switch operation flow rate
□ L/min

Example: MKCM20-2TL-OFF Oil type: ISOVG32 Switch operating flow rate: 1L/min
*Please specify the contact type as either “OFF type” or “ON type”.
“OFF type”: The contact turns OFF when the flow rate drops (normally open, A contact)
“ON type”: The contact turns ON when the flow rate drops (normally closed, B contact)

fluid		oil
Operating Flow Rate		Please specify a flow rate within the specified range of operating flow rates above. (If possible, specify a flow rate value that is 1/3 or less of the minimum usable flow rate.)
connection		Rc female thread	Change to R male thread . Combination with R male thread is also possible.
Heat Resistance Temperature		Maximum 60°C	Heat-resistant specifications (maximum 100°C) are also available.
Pressure resistance		1MPa	Pressure-resistant specifications (maximum 5MPa) are also available.
Maximum Operating Voltage		DC, AC 300V
Maximum current used		DC, AC 0.5A
Contact Capacity		50VA
Material	Transparent tube	acrylic	Heat-resistant and pressure-resistant products are made of brass tube (C3604). Heat-resistant and pressure-resistant products cannot have the float visually inspected.
	Protective cover	BC (gunmetal)	Aluminum versions are also available.
	Fittings	C3604 (Brass)	SUS products are also available.
	Spring	SUS304	–
	Magnet included float	aluminum	–
	O-ring	Nitrile Rubber	Heat and pressure resistant specifications are made of fluororubber.
	Reed Switch	Commercially available	–
	Lead wire (standard 200mm)	Commercially available	You can also specify the length of the lead wire and change to a cab-tire cord.

1. Precautions regarding magnetic fields

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.

2. Electrical wiring precautions

Be careful when wiring the flow switch 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.)

3. Caution regarding switch operation due to changes in oil temperature and viscosity

If the temperature or viscosity of the oil changes, the switch may not operate at the set flow rate or the switch operating flow rate may change.