ONO SOKKI - CT-6520 Universal Engine tachometer

Universal Engine Tachometer

Universal Engine Tachometer
CT-6520

Photo (CT-6520 Universal Engine Tachometer)

The CT-6520 Universal Engine Tachometer allows to select a plenty of revolution detectors according to measurement conditions such as location of detector, type of an engine and so on. Featuring multiplier circuit, it can make measurement time reduced, on the other hand, enabling improve measurement accuracy. Measurement data can be output through analog, digital or pulse output. In addition, Two of preset setup of r/min are available for data comparison and alarm function.

Features

A variety of engine revolution detector can be available in combination, for 2/4-cycle engines having from 1 to 8 cylinders.
Number of input pulses per revolution can be set in the range from 0.5 to 199.5 P/R in 0.5 P/R step
Three type of outputs; analog, digital and pulse
2 way of power operation ; AC (ranging 100 to 240VAC) and 12VDC (ranging 11to 15VDC)
2 of preset setup for "Run Judge" and "Overrun"

Specifications Summary

Input Section	Applicable Detector (option)		Ignition pulse detectors (IP-292/IP-296/IP-3000)
			Magneto-electric rotation detectors (OM-200/MP-910/MP-981)
			Magneto vibration detector (VP-201/202)
			Opto-fiber sensor (LG-916/930)
	Measuring Range		400 to 20,000 r/min (depending on a detector)
	Input Pulse Switching		0.5 to 199.5 P/R (in 0.5 P/R steps, depending on a detector)
	Trigger Level	IP-292/296/3000 OM-200 VP-201/202	Settable using a dial-type potentiometer
		Others	Internally adjusted and fixed
Display Section	Type		5-digit green LED display (max indication up to 20000 r/min)
	Measurement Time		Every 1s
	Time Base		Quartz oscillator Frequency : 16MHz ±3x 10^-5
	Display Accuracy		±0.02% of F.S ±1 digit in the range of 400 to 20000 r/min
Alarm Section	Setting		By thum-wheel switches
	Range		Overrun : 1 to 199 x 100 r/min Running Detection : 1 to 99 x 100 r/min
	Comparison Interval		Every 100ms
	Output		Transfer contact Capacity : non-inductive load AC240V 2A, DC30V 2A
Analog Output	Voltage Output		0 to 10V/0 to 20,000 r/min. load resistance : 1 Ω min.
	Current Output		0 to 20mA/0 to 20,000 r/min load resistance : 100kΩ max. Note; The voltage output is eliminated when the current output is provided.
	Linearity		±0.5% / full-scale max.
	Output Adjustment Range		±4% / full-scale max. (zero) ±4% / full-scale max. (span)
	Response Time		80ms / 10% to 90% level
Digital Output	Format		BCD, TTL level, fanout : 2 (receptacle connector type : 57-40500)
Pulse Output	Format		1 P/R 60 P/R (un-synced to the input signal) and wave-shaped output of the input signal TTL level, fanout : 2
Power Requirement			100 to 240VAC ±10%, approx. 30W 11 to 15VDC, approx. 25W
Operating Temperature Range			0 to +40°C
Weight			approx. 3kg

Applicable Detectors

	IP-292/296 Ignition Pulse Detector By clamping it around the ignition coil cable, it can detect the spark signal of ignition systems. IP-292 : for primary side detection IP-296 : for high-voltage detection		VP-201/202 Magneto Vibration Detector Detecting vibrations caused by the reciprocating up-and-down movement of an engine's piston

	IP-3000 Ignition Pulse Detector Used by clamping it around the ignition coil cable or the current cable of electronic distributor, detecting the spark signal of ignition systems. Much compact and light weight than IP-292 / IP-296.		MP-910 Magnetic Detector MP-981 Electro-Magneto-electric rotation detector Detecting generated signal, which is having a frequency proportional to revolution. Located close to a detection gear mounted on a rotating shaft.

	OM-200 Motor/gasoline engine RPM detector Detecting the leakage flux from the magneto rotating shaft of an engine.		LG-916/930 Opto-fiber Sensor Detecting reflecting light from a reflection mark attached on a rotating part of an engine. Those sensors include the light source, the light receiver and the amplifier in one body.

Revised: 2008/04/30