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CNT-723
CNT-723 Pulse counter with high-speed analog output
 
cnt-723 photo  
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
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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 plus or minus47bit pulse counter
Has analog output response time of 7.6micros
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 plus or minus5V or plus or minus10V 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 plus or minus50V
Input resistance 100kohm / 10kohm
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 plus or minus25V (for GND)
plus or minus25V (differential voltage)
Recommended line driver AM26LS31 or equivalent
Terminator 340ohm / 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 plus or minus47bit
Set value storage Non-volatile memory
Operation time Max. 3.5micros
Analog response total time Max. 7.6micros
Analog Output
Number of outputs 1
Output voltage range plus or minus10V / plus or minus5V
Output resolution 16bit (about plus or minus10.8V)
Measurement mode Linear counter / Ring counter / Magnify
Calibration output +100% / 0% / -100%
Temperature fluctuation Max. 200ppm / degree Celsius
Output accuracy Max. 0.1% full scale @23 degree Celsius
Linearity Max. 0.1% full scale @23 degree Celsius
Load resistance Min. 4.7kohm
Output zero adjustment range plus or minus200mV
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 ASCtwo
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 0degree Celsius to +40degree Celsius / Max. 85%RH (no dewing)
Storage temperature & humidity limits -10degree Celsius to +60degree Celsius / Max. 85%RH (no dewing)

Dimensions


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