Electromagnetic Detector

MP-900/MP-9000シリーズ

The MP-900/MP-9000 series are sensors that are primarily mounted on a rotating shaft and positioned close to the teeth of a detection gear to extract a frequency signal proportional to the rotational speed.

From low-cost, general-purpose models to specialized models such as oil-proof and heat-resistant types, you can choose according to your application.

*Signal cables (except for models with directly attached signal cables), extension cables, and connectors are sold separately.

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It has a simple structure, excellent rigidity and environmental resistance, and is unaffected by vibration, temperature, oil, dust, etc.
Because it uses non-contact detection, safe measurement is possible without putting any load on the rotating body.
As it is self-generating, it does not require a power source and is ideal for on-site installation.
A wide range of products including oil-proof, high-temperature, ultra-compact, and long types.

a) Distance from detection gear	The narrower the spacing, the easier it is to detect even at low rotational speeds. Typically, a spacing of 0.5 to 1 mm is used.
b) Tooth profile of the detection gear	We recommend involute gears.
c) Size of the detection gear	モジュール（M）という単位を用います。これは歯の大きさを決める値で、同じモジュールの歯数ならば、かみ合せが可能です。モジュール1 以上、歯幅 5 mm 以上をお勧めします。
d) Material of the detection gear	Materials that are strongly attracted to magnets, i.e., ferromagnetic materials, are suitable. If a choice is possible, we recommend S45C, SS400, SUS430, FC400, etc.

Number of teeth	60
Reference pitch circle diameter	60
Module	1
Material	SS400 (Surface treatment: Trivalent chromate, white)

Our standard gear MP-001

The detection gear we provide is an involute gear with module 1 and 60 teeth.

	General purpose	General purpose Cable included	low Impedance	oil proof	Oil and heat resistant (150℃)	Heat resistant (220℃)
Model name	MP-9100 ^*	MP-911	MP-9120 ^*	MP-930	MP-935	MP-936
Exterior
*DC resistance value ^1 (Ω)**	850～950	850～950	85～105	850～950	600～700	800～900
Inductance (mH) [1kHz, TYP]	300	300	30	300	270	370
Impedance (Ω) [1kHz, TYP]	2k	2k	240	2k	1.8k	2.5k
Output voltage (Vp-p) [1kHz, TYP] ^*2	2.0 or higher	2.0 or higher	2.0 or higher	2.0 or higher	2.0 or higher	2.0 or higher
Detectable frequency range ^3/4 (Hz)	200～35,000	200～35,000	200～80,000	200～35,000	300～35,000	300～35,000
Detection gear Compatible Modules	1～3	1～3	1～3	1～3	1～3	1～3
Operating temperature range	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋150℃	−10℃～＋220℃
*Vibration resistance ^5 (m/s ²)**	196	196	196	196	196	196
*Shockproof ^6 (m/ ^s²)**	1960	1960	1960	1960	1960	1960
Outline drawings
Mass (g)	90	Approximately 300 (Including code)	Approximately 90	about 100 (Including code)
Ambient magnetic field (T)	0.03以下	0.03以下	0.03以下	0.03以下	0.02以下	0.02以下
Signal cable	none	5m direct output M3 crimp terminals	none	0.5m direct outlet BNC	Heat-resistant, 1m direct outlet BNC	Heat-resistant, 1m direct outlet BNC
price (tax included)

	long body	long body Cable included	small size Cable included	small size	Ultra small	For small modules	For medium modules
Model name	MP-940A ^*	MP-954	MP-950	MP-962	MP-992	MP-9200 ^*	MP-963
Exterior
*DC resistance value ^1 (Ω)**	500～600	2.1–2.3k	2.1–2.3k	1.25k to 1.45k	160～190	850～950	3.7-4k
Inductance (mH) [1kHz, TYP]	270	400	400	210	25	300	1800
Impedance (Ω) [1kHz, TYP]	1.8k	3.5k	3.5k	2.1k	250	2k	16k
Output voltage (Vp-p) ^*2 [1kHz, TYP]	2.0 or higher	2.0 or higher	2.0 or higher	1.5 or higher	0.5 or higher	0.6 or higher (M = 0.75)	2.5 or higher
Detectable frequency range ^3/4 (Hz)	300～35,000	300～35,000	300～35,000	400～35,000	400～100,000	300～35,000	45～15,000
Detection gear Optimal Module	1～3	1～3	1～3	1～3	1～3	0.5～1	3～10
Operating temperature range	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋90℃	−10℃～＋120℃	−10℃～＋90℃	−10℃～＋90℃
*Vibration resistance ^5 (m/s ²)**	196	196	196	196	196	196	147
*Shockproof ^6 (m/ ^s²)**	1960	1960	1960	1960	1960	1960	1960
Outline drawings
Mass (g)	Approximately 150	Approximately 90	about 70	about 50	about 3	Approximately 90	Approximately 200
Ambient magnetic field (T)	0.01以下			0.005以下	0.001以下	0.005以下	0.03以下
Signal cable	none	0.5m direct outlet BNC	0.5m direct outlet BNC	0.5m direct outlet BNC	0.5m direct outlet FEP wire	none	none
price (tax included)

* The MP-940 has been discontinued. The successor model is the MP-940A.
* The MP-9200 is the successor to the MP-920. There are no changes to the basic specifications, but some of the external dimensions have been altered.
* The MP-967 has been discontinued.

*1: The temperature coefficient of DC resistance is 0.4%/°C.
*2: Load resistance 10kΩ, M = 1, gap = 0.5mm (however, for MP-963, M = 3, gap = 1.5 mm)
*3: When using a 60 P/R detection gear, the frequency notation (Hz) will match the rotational speed notation (r/min). <Frequency (Hz) = Rotational speed (r/min) ÷ 60 (s) × 60 (P/R)>
*4: When using our standard gear MP-001. (However, MP-963 is used when using a gear with M=3.)
*5: JIS E 4031, Class 5, 40Hz, 2 hours each in X and Y directions, 4 hours in Z direction.
*6: 3 times each in the X, Y, and Z directions.

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Electromagnetic Detector

MP-900/MP-9000シリーズ

Features

Related Products

MP-001 Specifications

Our standard gear MP-001

Rotation Detector Classification List

Specification

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Outline Drawings

Related Information