Cocoresearch Inc

 

Uniqueness of our Products

Coco Research Inc. has developed an ideal technology for the measurement of frequency, rotation, and flow. An extremely powerful Dynamic Forecast computation is the principle of working of our precision measuring instruments. The trade of PERIOMETIC with its distinguishing features receives international acclaim for our products due to its ultra fast operation, efficient response to abrupt

On the basis of past 35 years experience the products have been designed to meet the standard for reliability especially needed for applications in high performance automobile, railway, and motorbike industry. Today’s our lightweight and ultra fast devices have defined the roadmaps to excellent performance with superior quality automobiles, motorbikes and trains in Japan.

Highly accurate, versatile, and multi functional devices

Frequency to Voltage Converters (F/V): “Input frequencies out put real time analog display”.

Tachometers: “Two channel photo MOS relays and RS-232C high speed analog output”.

Speed detecting sensors: “magnetic and frequency sensors out put speed, electrical, and logic signals”

 

Cocoresearch​ converter KAZ-723 / 723A High response F/V  

Frequency to Voltage Converters (F/V): KAZ-723 / KAZ-723A converts input frequencies into real time analog output display. It enables to analyze the characteristics of high acceleration mechanical systems. It efficiently captures accelerating or decelerating, periodic or unperiodic, continues or discontinues, and suddenly starting or stopping frequencies to convert into output voltage with ideal response time on the basis of operation based on PERIOMATIC. It accepts frequencies from rotary encoder, optical sensor, gear speed sensor, and converts these mechanical actions into analog voltage.
The range of KAZ-723 / 723A is 0.04Hz to 200kHz with a response time of 5s and resolution of 6.25ns. Besides F/V conversion it offers deviation data that is the measurement of fluctuations in the input frequencies.
Our products, extensively used in all automotive Industries of Japan, offer distinguishing features based on PERIOMETRIC technology.

KAZ-723 Catalog download

KAZ-723A Catalog download

 

 

Cocoresearch​ Periomatic Tachometer TDP-3921-R  

The TDP-3921-R tachometer, used in almost every Japanese automotive industry, has unique functions. It offers two channels photo MOS relays output and RS-232C high-speed communication. Above all, it has unique optional functions like BCD and analog output with an ideal response time of 1ms. Its measurement range is from 0.0006Hz to 100kHz with a programmable display to read out in terms of wide range of units like rpm, rps, Hz, km/h, l/min, g/h, etc.

TDP-3921-R Periomatic Tachometer Catalog download

 

Features

High speed analog output
The measured value can be transmitted as -10 to 10V analog signal (0 to 10V when input is single phase pulse) to other devices / system such as data logger or PLC. The polarity of analog output follows the direction of rotation of pulse generator. The analog signal can be scaled, e.g. 0 to 10V = 0 to 8000rpm. Where as the updating time is 1ms.

Wide range

Input frequency range is 0.0006Hz to 100kHz without any change in range. The display accuracy is 20ppm±1digit.

Employing PERIOMATIC technology

The forecast computation PERIOMATIC, versatile software, is the principle of working of TDP-3921-R. It enables the user to get analog output voltage even in the presence of heavy fluctuations. The PERIOMATIC has stop (zero speed) forecasting function, so the TDP-3921-R immediately responds to sudden stop of the incoming pulses.

Compatibility to variety of Inputs
The TDP-3921-R can directly be connected to varying sensors like AC magnetic pickups, rotary encoders, proximity sensors, and pulse output devices. The TDP-3921-R can detect the direction of rotation of pulse generators and indicate it by minus or plus sign on LED display and analog output when 2 phase signals are applied.
Large 14.2mm bright LED display with fixed or floating decimal point
Three kinds of averaging function, time average, moving average, and pulse dividing average are used to dealt with irregular and heavily laden with fluctuation incoming pulses.
It offers independent and programmable updating times of display and analog output

 

Specifications

Name	Periomatic tachometer
Model	TDP-3921-R
Measurement	PERIOMATIC processing
【Input】
Number of inputs	1
Input frequency range	0.0006Ｈｚ-100ｋＨｚ
Resolution	102ns (9.8MHz)
Input method	1)Single phase pulse 2)UP/DOWN signals of 2 inputs (separate pulse) 3)2 phases A and B with 90phase difference
Input pulse width	MIn.4s (both H level and L level)
Input lovel	Logic : logic signals of more than 3.5V in H level and less than 1V in L level Zerocross : alternative signal between 100mV to 30V
Withstand voltage	30V
Input connector	Terminal block (7.62mm intervals, M3 terminal screw)
Sensor power supply	+12V 50mA max
【Processing】
Measurement mode	Frequency meter mode / Period meter mode
Operation rate	Setting the displayed value against input frequency Input frequency rate : 0.00001-999999 (Hz) Display rate : 0.00001-999999
Dividing rate (pulse average)	1-999 (divided frequency by software)
Number of moving average	1-8
Dynamic forecast	8 steps (continuous estimate and, one cycle maintaining are included)
Chatter suppressing function	The chattering is removed
Dual range	Setting two kinds of operation rate
Memory of the set value	INonvolatile memory (EEPROM)
【Display】
Displayed colors	Red LED
Display	7 segments of LEDs, character height is 0.56" inches (14.2mm)
Display digits	6 digits
Range of display	-199999-999999
Display of polarity	-means lighting, +means no lighting
Over display	By the OL display
Zero display	Reading of zero suppression
Position of decimal point	Automatic range and fixed range □□□□□□.- □.□□□□□
Display update time	0.1-99.9s
Display accuracy	20ppm 1 digit @23
【Analog Output】
Output voltage range	10V
Resolution	About 10000 (-10V - +10V)
Output updating time	0.001-99.99s
Full scale setting range	Display value setting in full scale (0.00000-99999)
Load resistance	Min. 4.7k
Output accuracy	Max. 0.2% of full scale @23
Temperature fluctuation	Max.200ppm/
Linearity	Max. 0.1%
【Comparator Output】
Number of channels	2 channels (HIGH and LOW)
Output signal	Isolated noncontact output (photo moss relay)
Rating	DC 350V maximum 80mA (resistance load) AC240V maximum 80mA (resistance load)
ON resistance	Under 50
Updating time	Synchronization is selected for display updating time and analog output updating time
Response time	Max. 3ms
Output connector	Terminal block (7.62mm intervals, M3 terminal screw)
【RS-232C】
Communication method	Asynchronous commmunication method
Communication level	Serial communications by RS-232C
Communication parameter	Fixed at baud rate of 2400bps
Communication connector	Hexpole plug-in phone jack
Output timing	Communication output of displayed data at every display updating
【General】
Power supply input *factory delivery option)	TDP-3921-RA10 AC100V 10% 50/60Hz TDP-3921-RA11 AC115V 10% 50/60Hz TDP-3921-RA20 AC200V 10% 50/60Hz TDP-3921-RA23 AC230V 10% 50/60Hz TDP-3921-RDF DC9.6-30V
Electric power consumption	Max. 8VA
Outside dimentions	96 (W) × 48 (H) × 150 (D) mm DIN standards
Weight	Approximately 700g
Operating temperature & humidity limits	0 to +40 / Under 85%RH (no dewing)
Storage temperature	-20 to +70

 

 

Cocoresearch​ Pulse counter with high-speed analog output  CNT-723 

The CNT-723, an efficient pulse counter, outputs analog voltage proportional to the angle of a rotary encoder or the position of a linear scale at high speeds.
It has been designed for the measurement of rotation angle of power trains. For example in case of motor and controller testing, tire testing, engine testing or for similar applications.

CNT-723 Catalog download

Distinguishing features

Maximum input frequency for A/B pulse is 2MHz

It accepts A/B pulse (quadrature pulse), single phase pulse and UP/DOWN puls

Full scale and zero scale of analog output can freely be set

CNT-723 is a 47bit pulse counter

Has analog output response time of 7.6s

It offers two kinds of reset functions, reset signal (Z signal) and manual rese

16x2 digit display shows analog output full scale and count value

16bit analog output with 5V or 10V range

 

Specifications

Name	Pulse counter with high speed analog output
Model	CNT-723
Signal Input
Number of inputs		1
Input signal		Single phase signal, A/B phase signal, UP/DOWN signals
Input frequency range		2MHz (Max.)
Input circuit characteristics
Input circuit characteristics	1) General input signals
	Input signal	Logic / zero cross (AC)
	Trigger level	0.00 to 10.00V 2.5V (Logic input)
	Input sensitivity	Min 1V p-p
	Input withstand voltage	50V
	Input resistance	100k / 10k when pull-up to +5V : 1.36k
	Input coupling	DC / AC
	AC coupling frequency characteristic	4Hz (-3dB, 6dB / oct)
	Low-pass filter	None / 15kHz (-3dB, 6dB / oct)/ 150kHz (-3dB, 6dB / oct)
	Input connector	BNC connector / screwless terminal block (internal short circuit)
	2) Line driver input
	Input signal	Line driver signal
	Input sensitivity	Min. 1V (differential voltage)
	Input withstand voltage	25V (for GND) 25V (differential voltage)
	Recommended line driver	AM26LS31 or equivalent
	Terminator	340 / none
	Input connector	Screwless terminal block
Input pulse width		MIn. 150ns (both H level and L level) *Logic input
Trigger direction		Rise / Fall
Input indicator		TRIG'D LED : Flash during pulse input (continuously light for high-speed pulse)
Power supply for sensor		+5V : Max. 150mA +12V : Max 120mA
Display
Display		16x2 character dot matrix LCD (LED back light illumination)
Display mode		1) Count (direct count) 2) Degree (number of rotations + degree) 3) Degree Minute Second (number of rotations +degree minute second) 4) Length (multi scaling)
Arithmetic Operation
Pulse counter capacity		47bit
Set value storage		Non-volatile memory
Operation time		Max. 3.5s
Analog response total time		Max. 7.6s
Analog Output
Number of outputs		1
Output voltage range		10V / 5V
Output resolution		16bit (about 10.8V)
Measurement mode		Linear counter / Ring counter / Magnify
Calibration output		+100% / 0% / -100%
Temperature fluctuation		Max. 200ppm /
Output accuracy		Max. 0.1% full scale @23
Linearity		Max. 0.1% full scale @23
Load resistance		Min. 4.7k
Output zero adjustment range		200mV
Output connector		BNC connector
EIA-574
Connunications standards		EIA-574 (RS-232C) Setting change and reading of a measurement value)
Communication system		Asynchronous
Communication parameter	Baud rate	9.6kbps / 19.2kbps / 38.4kbps / 57.6kbps / 115.2kbps
	Start bit	1bit
	Stop bit	1bit
	Data length	8 bits
	Parity bit	none
Communication code		ASC
General
Power supply input		AC100V to 240V (50Hz / 60Hz)
Power consumption		Max. 30VA
Isolation		Sensor power source and signal input / analog output / power supply input / housing
Outside dimentions		57 (W)  218 (H)  218(D) mm (2.24 (H) 8.58 (W)  8.58 (D) inches)
Weight		Approximately 1.8kg (without accesories)
Operating temperature & humidity limits		0 to +40 / Max. 85%RH (no dewing)
Storage temperature & humidity limits		-10 to +60 / Max. 85%RH (no dewing)

 

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