Products Detail

DC-JA

Auto CounterElectronic Counter

This product is no longer in production or sales.

Easy to see!

Overview
Specification
External dimension
I/O Circuit
Downloads

Overview

Features

-> White LCD display(LED back-light)
-> 7 digits(7-segment, zero-suppress), reset display, overflow display(8th digit can be displayed)
-> Reset key-lock provides
-> It is easy to change reset key-lock and counting speed with slide switch under the counter)

Specification

Kinds	Addition type total counter
Model No.	DC-JA7-AW	DC-JA7-DW	DC-JA7-V
Power source	100 to 240VAC(50/60Hz)	12 to 24VDC(Ripple 20% or less)	-

Fluctuation range	85 to 250VAC	12 to 24VDC±10%	-

Power consumption	1.2VA(when 240VAC)	0.7W(when 24VDC)	-

Number of digit	7 digits(8 digits with overflow display)
Front size	24×48mm
Display	7-segment LCD(LED back-light)		7-segment reflective LCD
	height 9mm, width 2.95mm
Memory function	EEP-ROM(Re-writing 0.1 million times or more)		-

Counting speed	30Hz/1kHz changeover,
	30Hz : contact, transistor, min. signal width 16.7msec(make ratio 1:1)
	1kHz : Transistor, min. signal width 0.5msec(make ratio 1:1)
Input signal	Contact or open-collector Impedance when ON(short-circuited): 1k ohm or less Impedance when OFF(opened): 100k ohm or more Flowing current when short-circuit: approx. 4mA		Contact or open-collector Impedance when ON(shortcircuit): 10k ohm or less Impedance when OFF(opened): 1M ohm or more Allowable residue voltage when ON: 0.5V or less Flowing current when short-circuit: approx. 4µA




Ambient temperature/humidity	-10 to +50 degrees C(-25 to +55 degrees Cwhen stored), 35 to 85%RH
Insulation resistance	100MΩ or more(500VDC megger) between conducting terminal and uncovered non-charged metal
Withstand voltage	2000VAC/min. between conducting terminal and uncovered non-charged metal
Noise resistance	Square-wave noise by noise simulator(Rising 1nsec, width 1µsec)
	Common mode 2kV
Vibration resistance	Double amplitude 4mm, 16.7Hz (Malfunction : Double amplitude 0.5mm, 10 to 55Hz), each 1 hour in X, Y and Z direction
Impact resistance	294m/s²( Malfunction : 98m/s²) each 3 time in X, Y and Z direction
Starting time when Power-ON	2sec or less		-

Protective structure	IP66(Only front panel : must be using rubber packing)
Case material	Polycarbonate
Weight	Approx. 70g		Approx. 60g
Accessory	Mounting hook, rubber packings

External dimension

DC-JA7-AW/DC-JA7-DW

DC-JA7-V

Panel-cut dimension

I/O Circuit

Connection

[Caution]
* Use the solderless terminal for M3.
* Use 2-core shield wire or metal wire tube and make it as short as possible. Don't make parallel wiring with power cable or high voltage cable etc.
* Counting input can't be accepted for 2sec after putting power source in.

Input circuit

[Caution]
* Each input circuit of DC-JA series is common use for contact and transistor. Flow current from the counter is approx. 4mA. Use the relay for little current in case of contact input.

Downloads

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