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Reversible Pulse Counter CNT-4921/4931 (Digital Panel Meter / Signal Converter / Indicator Alarm / Up-Down Pulse Meter)

Name: Reversible Pulse Counter CNT-4921/4931
Brand: COCORESEARCH
SKU: CNT-4921 / CNT-4931
Availability: InStock

Up to 4MHz with Scaling Function.
Fully Backward Compatible with the Long-Running CNT-39, Delivering Enhanced Performance with the Same Great Usability.

- Connects to various pulse-output sensors including rotary encoders, linear gauges, wire encoders, and positive displacement flow sensors.

- Widely supports applications such as length measurement, angle positioning, displacement, and totalized flow display.

- Supports up to 4MHz input frequency for single-phase, A/B phase pulses (up to 1MHz), and direction signal inputs, achieving precise reversible measurement without cumulative errors.

- Offers versatile options including a high-speed 16-bit analog output with a 0.5ms update rate.

- Delivers outstanding performance in R&D experiments and factory production control lines.

CNT-4921

CNT-4931

Standard Specifications

Compatible with Various Input Signals

Supports single-phase signals like open-collector, contact pulses, voltage pulses, and AC signals, as well as A/B phase quadrature, individual up/down pulses, and direction signals.
Bi-directional measurement is fully supported during 2-phase input.

Compatible with a wide variety of pulse-output sensors, including magnetic gear speed sensors, electromagnetic pickups, flow sensors, rotary encoders, photoelectric sensors, and linear scales.

COCORESEARCH Gear Speed Sensors

COCORESEARCH Electromagnetic Pickups

Flow Sensors

Rotary Encoders

Photoelectric Sensors

Linear Scales

Now supports isolated input & line driver input

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Continuous RS-232C data output: Contact us for availability

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Input Frequency: 0-4MHz (Single-phase) / 0-1MHz (A/B phase) – No Range Switching Required

Scaling Function

Freely configure the totalized value per pulse and the decimal point position for display.

Full 6-Digit Display, Quadruple (4x) Evaluation

Enables quadruple (4x) edge evaluation for A/B phase quadrature signals.

2-Channel Solid-State Output Comparator Equipped as Standard

External Control

Direct control for Preset, Reset, and Hold functions.

Switch Counting Direction via Software Configuration – No Rewiring Required (A/B Phase)

Easily correct wiring errors or adjust to changing test conditions solely through setup modifications.

Settings can be adjusted using the 4-button pad located behind the front panel or via the LINKSHIP PC software.

A) COCORESEARCH's unique mounting mechanism: Enables easy single-person front-panel installation.
B) The front bezel can be attached or removed without tools by pressing the side levers.

CNT-4921 With Front Sub-Panel Removed

C) Input signal status LEDs
D) Individual ID switches for multi-unit configuration *Active only with RS-485 option
E) HIGH comparator indicator LED
F) LOW comparator indicator LED
G) ENTER button
H) Value adjustment button
J) Digit selection button
K) MODE button

Two Configuration Styles Available

Choose between the CNT-4921 (configured via internal push buttons) and the CNT-4931 (equipped with front digital thumbwheel switches).

CNT-4921

Configure comparator values and parameters via internal push buttons.

CNT-4931

Set comparator thresholds directly using the front digital thumbwheel switches.

LINKSHIP Configuration Software

Manage parameters, save configurations, and print data sheets. Connect the instrument's RS-232C port to a PC using a dedicated communication cable (such as the CSS-M06 listed below).

CNT-4921/4931 Rear Panel

CSS-M06D09 Cable etc.

LINKSHIP Interface

Verify & Print Parameter Lists

RS-232C Communication

Transfer measurement data to a computer or adjust parameters using the LINKSHIP software.

*Requires an RS-232C communication cable (sold separately). Model: CSS-M06D09 (D-SUB 9-pin) or CSS-M06D25 (D-SUB 25-pin)

Cable Length: 2.5m

*Please contact us regarding continuous RS-232C data streaming support.

Optional Features

2-Channel Extended Comparator Output

Add 2 additional channels to the standard 2-channel comparator setup, allowing up to 4 channels of HIGH/LOW comparator outputs total.

4 Analog Output Variations

Select from 0-10V, 1(0)-5V, ±10V, or 4(0)-20mA (specify model at time of order). Features a high-speed 0.5ms update rate with 16-bit resolution.

BCD Parallel Output

Outputs 6-digit signed parallel signals via open-collector, TTL, or CMOS. Simplifies direct connection to PLCs, large-format remote displays, and digital printers.

*With BCD connector attached

RS-485 Communication

Custom Enclosures & Multi-Channel Systems Available [Custom Solutions: Please Consult Us]

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■ Scalable channels and measurement types ■ Convenient, simple, and cost-effective ■ Custom functional modifications (power supply, output voltage, protocols, etc.)
■ Available from single-unit orders ■ Calibratable as an integrated assembly ■ Calibration certificates and traceability charts available