Ircon Modline 4 Bedienungsanleitung

INSTALLATION and OPERATION MANUAL

Revision S 5

04/2019

Americas

Everett, WA USA

Tel: +1 800 227 8074 (USA and Canada, only)

+1 425 446 6300

solutions@ﬂukeprocessinstruments.com

EMEA

Berlin, Germany

Tel: +49 30 4 78 00 80

info@ﬂukeprocessinstruments.de

China

Beijing, China

Tel: +8610 6438 4691

info@ﬂukeprocessinstruments.cn

Worldwide Service

Fluke Process Instruments offers services, including repair and

calibration. For more information, contact your local ofﬁce.

www.ﬂukeprocessinstruments.com

Speciﬁcations subject to change without notice.

Fluke Process Instruments

Interchanging non-CE-approved

components such as older sensing heads,

indicators, PC boards, and cables will not

maintain compliance to the CE Directive.

CAUTION

For installing, operating, and servicing this instrument, please observe all cautions and

warnings that are located throughout this manual.

CE Compliance Information

Cautions and Warnings

Example of a Caution.

CAUTION

Example of a Warning.

WARNING

WARRANTY

IRCON, Inc. warrants equipment manufactured by it to be free from defects in materials and workmanship

for a period of one year from the date of shipment by IRCON. Customer-paid repairs are warranted for 90

days from date of shipment. If within such period any such equipment shall be proved to IRCON’S satis-

faction to be so defective, such equipment shall be repaired or replaced at Ircon’s option, provided the

defective equipment is returned to Ircon, transportation charges prepaid by purchaser. This warranty shall

not apply (a) to equipment not manufactured by Ircon, (b) to equipment which shall have been repaired or

altered by others than Ircon so as, in its judgement, to affect the same adversely, or (c) to equipment

which shall have been subject to negligence, accident, or damage by circumstances beyond Ircon’s control

or to improper operation, maintenance or storage, or to other than normal use or service. With respect to

equipment purchased by IRCON but not manufactured by Ircon, the warranty obligations of Ircon shall in

all respects conform and be limited to the warranty actually extended to Ircon by its supplier (the manufac-

turer). The foregoing warranties do not cover reimbursement for transportation, removal, installation, or

other expenses which may be incurred in connection with repair or replacement.

Except as may be expressly provided in an authorized writing by IRCON, IRCON shall not be subject

to any other obligations or liabilities whatsoever with respect to equipment manufactured by IRCON or

services rendered by IRCON. THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF

ALL OTHER EXPRESS AND IMPLIED WARRANTIES EXCEPT WARRANTIES OF TITLE, INCLUDING

BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE.

LIMITATION OF LIABILITY

Anything to the contrary herein contained notwithstanding, IRCON, IT’S CONTRACTORS AND

SUPPLIERS OF ANY TIER, SHALL NOT BE LIABLE IN CONTRACT, IN TORT (INCLUDING

NEGLIGENCE OR STRICT LIABILITY) OR OTHERWISE FOR ANY SPECIAL, INDIRECT, INCIDENTAL,

OR CONSEQUENTIAL DAMAGES WHATSOEVER. The remedies of the purchaser set forth herein are

exclusive where so stated and the total cumulative liability of Ircon, it’s contractors and suppliers of any

tier, with respect to this contract or anything done in connection therewith such as the use of any product

covered by or furnished under the contract, whether in contract, in tort (including negligence or strict liabili-

ty) or otherwise, shall not exceed the price of the product or part on which such liability is based.

Risk of Personal Injury

When this instrument is used on a critical process where failure of this

instrument could cause personal injury or property damage, the user

must provide a redundant device or system that will initiate a safe

process shutdown . The user should also follow NEMA safety guide-

lines in the Appendix of this manual.

CAUTION

Section 1 – INTRODUCTION

1.1 GENERAL DESCRIPTION

MODLINE 4 is an infrared thermometer with a built-in two

wire transmitter. Power it up with a 16 to 40 volt direct

current source and you get a 4 to 20 mA current (maximum)

that varies linearly with temperature. You can use this

current to operate a 4 to 20 mA indicator, recorder, con-

troller or datalogger – or a combination of devices in

the series. Figure 1.1 shows the basic electrical circuit.

This instrument is built for long, trouble-free service in even

the harshest environments. Everything is packaged in

sealed aluminum casting rated NEMA 4. The instrument

can be ordered with a water-cooled casting for operation

in high ambient temperatures.

The lens is recessed and sealed in the front of the casting.

A screw-on back cover with torquing slots gives access to

the adjustments and connections (see figure 1.2). A 1/2

inch NPT conduit hub is provided for wiring. NOTE: The

back cover of the water-cooled enclosure has a pair of

torquing studs.

The MODLINE 4 is easy to install, operate and maintain.

The lens is pre-adjusted and sealed so you don’t have to

make optical adjustments. Just choose a clear sight path

with no obstructions, aim the sensor at the object you want

to measure and read the temperature on your indicator.

The controls on the back panel allow you to adjust for

emissivity of the material you are measuring and for the

most suitable response time for your process. If the instru-

ment includes a peak picker (block D of model number

= 1), an additional control is provided for peak picker

decay time. As long as your process stays the same, you

will make these adjustments only once when you set

up the instrument.

The high-level current signal (20 mA maximum) minimizes

noise problems often associated with long cable runs.

Twisted pair cable with an overall shield is all you need

for most applications.

Seven different MODLINE 4 series that differ in spectral

responses, cover a wide variety of processes. Temperature

ranges covering 0 to 2500°F and 0 to 1300°C are available.

Note: General illustrations in this manual that show the

standard MODLINE 4 casting also apply to instruments

with water-cooled castings.

1-1

Fig. 1.1 - BASIC MODLINE 4 ELECTRIC CIRCUIT

Fig. 1.2 - MODLINE 4 REAR VIEW (WITH

COVER REMOVED) and FRONT VIEW

Note: standard enclosure shown.

Section 1 – INTRODUCTION

1.2 HOW IT WORKS

The MODLINE 4 works on a simple principle. A heated

object radiates infrared energy, and the intensity of

radiation depends on the temperature of the object. By

measuring the radiation intensity, it is possible to measure

the temperature without contacting the object.

Fig. 1.3 shows a MODLINE 4 series with a digital meter

across a DC power supply. The current in this circuit is

determined by the MODLINE 4.

Infrared radiation enters the lens of the MODLINE 4

and is focused on an infrared detector. The detector

converts infrared energy to an electrical signal that

varies with the intensity of infrared radiation. This

signal is amplified, linearized, and scaled to the desired

temperature range by the MODLINE 4 electronic circuits.

The resulting output current causes the pointer to deflect

on the meter. If the meter scale is matched to the MOD-

LINE 4 range, it’s a simple matter to read temperature

values directly from the scale.

Fig. 1.3 shows how the MODLINE 4 measures a change

in temperature. Assume the MODLINE 4 is scaled for

the 500 to 1500°F range. The circuit current is 4 mA

when the MODLINE 4 is viewing a 500°F target and

20 mA when viewing a 1500°F target. The current

varies linearly between 4 and 20 mA for temperatures

between 500 and 1500°.

In Fig. 1.3a, the target temperature is 500°F. The target

will radiate a certain intensity of infrared energy at

this temperature. When the MODLINE 4 senses this

radiation, it causes 4 mA current in the meter. The

pointer rests at the lowest scale limit (500°).

Figures 1.3b and 1.3c shows what happens when

target temperatures increases. The MODLINE 4 detects

more infrared radiation, and the meter current increases

to display higher temperature readings.

Summarizing the action, the MODLINE 4 provides a DC

current proportional to the infrared energy it senses.

This current can be fed through a variety of current-

sensitive devices to indicate temperature or provide a

desired control action.

1-2

FIG. 1. 3 - BASIC OPERATING PRINCIPLE OF

MODLINE 4 INSTRUMENT

TABLE 1.1 – SUMMARY OF MODLINE 4 SERIES

1–3

Section 1 — INTRODUCTION

1.3 OPERATING WAVELENGTHS

It takes a whole family of instruments to cover a

wide range of measurement applications. MOD-

LINE 4 features such a family-seven series operat-

ing at distinct infrared wavelengths. Each series

includes the temperature spans that are common

for the applications involved.

The wavelength regions selected for the various

MODLINE 4 series are listed in Table 1.1. This

table also summarizes some of the primary appli-

cations for these ranges.

120 to 400°F

150 to 500°F

200 to 600°F

300 to 1000°F

50 to 200°C

100 to 400°C

150 to 500°C

43 Measures thin, clear films of C-H

Type plastics such as polyethylene,

polypropylene, polystyrene, vinyls,

and nylon. Also ideal for paints and

organics such as waxes and oils.

3.43 ± 0.07 microns

0 to 200°F

0 to 500°F

0 to 1000°F

0 to 100°C

0 to 250°C

0 to 600°C

500 to 1000°F

500 to 2500°F

300 to 800°C

300 to 1300°C

500 to 1000°F

600 to 1400°F

250 to 600°C

350 to 800°C

Ideally suited to all types of very low

temperature applications such as

print drying, food, wood, paper and

textile processing, vacuum forming,

and infrared heating.

Measures subsurface glass tem-

perature. Good unit to see though

hot gasses and flame.

All types of medium temperature

applications involving metals.

8 to 14 microns

200 to 1000°F

500 to 1500°F

500 to 2500°F

100 to 600°C

300 to 850°C

300 to 1300°C

47 Measures glass surface tempera-

ture in such operations as forming,

bending, tempering annealing, and

sealing. Also suitable for infrared

heating.

4.8 to 5.2 microns

0 to 600°F

500 to 1500°F

500 to 2500°F

0 to 300°C

300 to 800°C

300 to 1300°C

48 Measures refractory brick, painted

surfaces, plastics glass and infrared

heating of these products.

Especially good for thin films of

plastics, oils, paper, wood, and

other organic material.

7.5 to 8.5 microns

3.7 to 4.0 microns

2.0 to 2.6 microns

Series Standard Ranges Wavelength Primary Applications

Section 1 – INTRODUCTION

1.4 OPTICAL RESOLUTION

The MODLINE 4 detector “sees” a certain area

(spot on a target surface. The diameter of the

spot is determined by the design on the

optical system and by the distance to the

ttarget.

Fig. 1.4 is a plot of spot sizes at every incre-

ment of distance from the front flange of the

MODLINE 4. The three dimensional “Cone of

Vision” defines the viewing area of the

MODLINE 4 at any given distance. Anything

inside the cone is in the field of view and

anything outside of the field of view is not.

If unobstructed, the cone of vision would expand

to infinity. But in practice, you aim it so it falls

on a target at some finite distance. In Fig. 1.4

below, the cone of vision falls on the target at

the separation distance (D). At this distance,

the diameter of the cone or viewing area on

the target surface will have a spot size (d).

1-4

Note that if you move the MODLINE 4 a little

closer the target will intersect a smaller cross

section of the cone and give you a smaller spot.

Moving it further away will give you a larger spot.

Spot size/separation distance relationships for

the MODLINE 4 are give in the Model Indentifi-

cation table (see section 1.5). This relationship

defines the optical resolution or the smallest

target the instrument can measure at any given

distance. If the spot is larger than the target, the

output current will be influenced partly by the

target temperature and partly by the background

temperature, and the instrument will give a false

temperature reading.

The importance of resolving the target will be

emphasized in the installation procedures.

FIG. 1.4 SPOT SIZE vs. SEPARATION DISTANCE RELATIONSHIP

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