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Panel Type TachometerF90 Series

Features	Digital Tachometer of DIN 96 x 48 mm panel size (Panel cut size 92 x 45 mm) Measuring method: 1/TAU standard sampling : X'tal 2MHz ±50ppm Pre-scaling function Ingress Protection (front panel): IP54

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Models

Models	Type	Output
Stock Only F90-101	Monitor Type	–
Discontinued ~~F90-103~~	Monitor Type	Analog
Stock Only F90-201	Upper / Lower Limit Preset Type	–
Discontinued ~~F90-203~~	Upper / Lower Limit Preset Type	Analog

Specifications

Model	F90-101	F90-201
Type	Monitor Type	Upper / Lower Limit Preset Type
Display	Red LED 14.22 x 7.8mm	Measuring Display : Red LED 10.5 x 5.5mm Preset Display : Green LED 8.0 x 4.0 mm
Number of Digits	6
Display Range	0.0001 – 999999
Decimal Point Position	4th decimal point position max.
Scale Range	0.11 – 20KHz (1pulse / revolution : 6.6667 – 120000rpm)
Preset Level	–	Upper / Lower Limit
Measuring Method	1/TAU standard sampling : X’tal 2MHz ±50ppm
Measuring Accuracy	±0.008% reading ±1 digit (multiplier = 1.0000, divider = 1, -5 – +50°C )
Sampling Time	0.5 – 10 seconds (sampling time is changed automatically by pulse interval)
Up-date Time	Every sampling or 1 – 99seconds (maximum)
Input Signal	Contact inpu t: sink current 2mA Open collector input sink current : 2mA L : 0 – 1.9V Voltage input : input impedance 3KΩ L : 0 – 1.9V H : 3.5 – 30V (P-P3.5V min.) Magnetic sensor input : input impedance 3KΩ L : -0.6 – -17V H : 0.6 – 17V
Input Frequency	Contact input 0.11 – 25Hz minimum pulse width 20msec Open collector or Voltage input 0.11H – 20KHz minimum pulse width 25msec Magnetic sensor inpu 0.11 – 20KHz minimum pulse width 25msec (L : -0.6Vmax. / H : 0.6Vmin)
Prescale	Multiplier : 0.0001 – 100 Divider : 1/1 – 1/9999 (can be used at the same time)
Overflow	At every sampling, when the measured data is over 6 digits, “—–” is displayed
Memory	Prescale value, upper/lower limit value and up date time are retained for 10 yrs. by E²PROM (rewrite 10000 times)
Keylock	Prescale value, upper/lower limit value (exclude monitor type) and up date time are inhibited to be changed. Contact input, Open collector input (sink current 7mA L : 2Vmax)
Output Inhibition	–	Upper / Lower Limit output inhibition Contact input, Open Collector input (sink current 7mA L : 2Vmax)
Upper / Lower Output	–	Type 1C relay contact (AC250V/0.5A or DC30V/2A)
Sensor Supply Power Source	12VDC ±10% 100mA max. (Analog output is 50mA maximum)
Power Supply	100 – 240VAC -15% +10% (85 – 264VAC) 50/60Hz
Power Consumption	Approximately 6VA
Ambient Temp. : Operating	-5 – +50°C (Non-freezing)
Ambient Humid. : Operating	45 – 85%RH (Non-condensing)
Weight	Approx. 280g
Compliance	–