MODEL: 18JPA

18JPA SPECIFICATIONS

ES-1873 Rev.10 Page 1/3

http://www.m-system.co.jp/

Rack-mounted DCS Signal Conditioners 18-RACK

FREQUENCY TRANSMITTER

(field-programmable)

Functions & Features

• Converting the output from a pulse-type transducer into

two standard process signals

• Microprocessor based

• Field-programmable frequency range

• Linearization available for flow compensation

• Averaging non-uniform pulses

• Excitation

• Loop testing via hand-held programmer PU-2x

• Second channel output available at the front terminals

and at the Standard Rack connector

Typical Applications

• Positive displacement flowmeters, turbine flowmeters and

vortex flowmeters

• Proximity switches

• Oval flowmeters

MODEL: 18JPA–[1]66–R

ORDERING INFORMATION

• Code number: 18JPA-[1]66-R

Specify a code from below for [1].

(e.g. 18JPA-266-R)

• Frequency range (e.g. 0 – 152.3 Hz)

• Linearization data (max. 16 points)

Use Ordering Information Sheet (No. ESU-1673) to specify

linearization data when the I/O signals are non-linear.

Note: Consult factory on applications with a sensor handling

periodically (& quickly) changing frequency (e.g. oval

flowmeter).

[1] INPUT

1: Open collector (Excitation: 12 V @ 30 mA)

2: Voltage pulse (Excitation: 12 V @ 30 mA)

3: Mechanical contact (Excitation: 12 V @ 30 mA)

OUTPUT 1

Voltage

6: 1 – 5 V DC (Load resistance 2000 Ω min.)

OUTPUT 2

Voltage

6: 1 – 5 V DC (Load resistance 2000 Ω min.)

POWER INPUT

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

RELATED PRODUCTS

• Programming Unit (model: PU-2x)

• PC configurator software (model: JXCON)

Downloadable at M-System’s web site.

A dedicated cable is required to connect the module to the

PC. Please refer to the internet software download site or

the users manual for the PC configurator for applicable

cable types.

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

Connection

Input: M3.5 screw terminals (torque 0.8 N·m)

Output 1: Connector

Output 2: M3.5 screw terminals (torque 0.8 N·m)

and connector

Power input: Supplied from connector

Screw terminal: Nickel-plated steel

Isolation: Input to output 1 to output 2 to power

Overrange output: -10 – +120 % at 1 – 5 V

(0 – 120 % when 0 % input equals to 0 Hz.)

Linearization: 16 points max. represented as percentage of

full-scale

Adjustments: Programming Unit (model: PU-2x); input

range, low-end cutout, zero and span, simulating output,

averaging nonuniform pulses, linearization data, etc.

(Refer to the users manual of JXCON for the adjustments

configurable with JXCON.)

Low-end cutout: 0 – 100 % adjustable (factory set to 0 %);

hysteresis fixed to 1 %

INPUT SPECIFICATIONS

Excitation: 12 V DC @30 mA; shortcircuit protection

Pulse width (time) requirement: 10 msec. min. at

< 20 Hz; duty ratio 20 – 80 % at ≥ 20 Hz