ONOSOKKIElectromagnetic speed sensorMP-981MP-981 This magnetoelectric speed sensor consists of a magnetoresistive element, a permanent magnet, a DC amplifier, and a voltage regulator. It is a flux-responsive sensor (resistance value changes with the size of the magnetic flux) and outputs a square wave from ultra-low speed to high speed (1 to 20,000 r/min (60 P/R)). There are three types of magnetoelectric speed sensors. · General-purpose type: MP-981 · High-speed type: MP-9820 · Waterproof type: AP-981 The signal cable, extension cable, and connector of the MP-981 are optional, while the signal cable of the AP-981 is built-in and drawable. 1.9 m (open end) Can detect nearly 0 r/min Because it is non-contact, it is very safe Small and light, easy to install As long as the detection gear can be installed on the measurement object, the installation position does not matter. It can also be measured in water and nitric acid mist atmosphere (AP-981) The measurement distance is related to the module of the detection gear used in conjunction. The larger the module, the longer the effective detection distance. In addition, the detection distance is also related to temperature. If the temperature change of the measurement environment is relatively large, the detection distance should be minimized. Within the detection range of the above figure, the waveform duty cycle of the output signal is within 50% ± 20%. Model MP-981 Detection method Magnetoresistive element and magnetic body gear detection Gear strong magnet (S20C, SS400, etc.), module 0.5 ~ 3, tooth width 3 mm or more Detection distance depends on the module of the gear Range 1 Hz ~ 20 kHz Output method Floating ground Output signal Square wave "Hi" level: within + (5 ± 0.5) V, "Lo" level: below + 0.5 V Output impedance Approximately 330Ω Applicable tachometers TM-3100 series, TM5100, etc. Power supply DC 12±2 V, approximately 40 mA Protection circuit Power supply polarity protection Operating temperature range -10°C to +70°C Withstand voltage DC 250 V Vibration resistance 1.2 mmp-p, 30 Hz, 1 hour, each in X, Y, and Z directions (when power is supplied) Shock resistance 490 m/s2, 3 turns in X, Y, and Z directions (when power is not supplied) Weight Approximately 80 g (including two mounting nuts) Signal cable sold separately (30 m or less, when using the MX-7100/8100 series connection cable) Connection signal cable MX-7105 (one end with clamp terminal, one end with R03 terminal) 5 m MX-7110 (one end with clamp terminal, one end with R03 terminal) 10 m MX-7115 (one end with clamp terminal, one end with R03 terminal) 15 m MX-7120 (one end with clamp terminal and one end with R03 terminal) 20 m MX-8105 (two ends with R03 terminal) 5 m MX-8110 (two ends with R03 terminal) 10 m MX-8115 (two ends with R03 terminal) 15 m MX-8120 (two ends with R03 terminal) 20 m