MODEL: 18JF

18JF SPECIFICATIONS

ES-1880 Rev.11 Page 1/3

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

Rack-mounted DCS Signal Conditioners 18-RACK

2-input MATH FUNCTION MODULE

(field-programmable)

Functions & Features

• Providing temperature or pressure compensation for a gas

flow, and other arithmetic operations

• Microprocessor based

• Equation and parameters selectable on site via hand-held

programmer PU-2x

• Loop testing

• Second channel output available at the front terminals

and at the Standard Rack connector

Typical Applications

• Various flowmeters

• Adding two flows

• Ratio calculation

• Calculating average temperature

MODEL: 18JF–[1]66–R[2]

ORDERING INFORMATION

• Code number: 18JF-[1]66-R[2]

Specify a code from below for each of [1] and [2].

(e.g. 18JF-666-R/3)

Use Ordering Information Sheet (No. ESU-1980). Default

setting will be used if not otherwise specified.

[1] INPUT

Current

A: 4 – 20 mA DC (Input resistance 100 Ω)

Voltage

6: 1 – 5 V DC (Input resistance 1 MΩ min.)

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.)

[2] OPTIONS

Equation (Refer to the EQUATION table)

/1: Temperature compensation for DP flowmeter (ideal gas)

/2: Pressure compensation for DP flowmeter (ideal gas)

/3: Addition/subtraction

/4: Multiplication

/5: Division

EQUATION

Equation parameters

EQUATION

/1: Temperature compensation for DP flowmeter (ideal gas)

/2: Pressure compensation for DP flowmeter (ideal gas)

/3: Addition/subtraction

/4: Multiplication

/5:Division

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.