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4180, 4181
Precision Infrared Calibrator
Users Guide
March 2013
© 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.
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LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke product is warranted to be free from defects in material and workmanship under normal use and
service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and
services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of
a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in
Fluke's opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with
its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke
does not warrant that software will be error free or operate without interruption.
Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers
only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is
available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the
applicable international price. Fluke reserves the right to invoice Buyer for importation costs of
repair/replacement parts when product purchased in one country is submitted for repair in another country.
Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair,
or replacement of a defective product which is returned to a Fluke authorized service center within the
warranty period.
To obtain warranty service, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that service center, with a description of the difficulty,
postage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following
warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke
determines that failure was caused by neglect, misuse, contamination, alteration, accident, or abnormal
condition of operation or handling, including overvoltage failures caused by use outside the product’s
specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to
the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges
(FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE
FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES,
INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or
limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not
apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other
decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other
provision.
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.
Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands
11/99
To register your product online, visit register.fluke.com
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Table of Contents
1 Before You Start .......................................................................1
1.1 Introduction ............................................................................................... 1
1.2 Unpacking ................................................................................................ 1
1.3 Symbols Used ........................................................................................... 2
1.4 Safety Information ..................................................................................... 3
1.4.1 Warnings .........................................................................................................4
1.4.2 Cautions ..........................................................................................................6
1.5 CE Comments ........................................................................................... 7
1.5.1 EMC Directive .................................................................................................7
1.5.2 Emission Testing ..............................................................................................7
1.5.3 Low Voltage Directive (Safety) ........................................................................7
1.6 Authorized Service Centers ...................................................................... 7
2 Specications and Environmental Conditions ......................9
2.1 Specifications ........................................................................................... 9
2.2 Environmental Conditions ....................................................................... 10
3 Quick Start ..............................................................................11
3.1 Setup ....................................................................................................... 11
3.2 Parts and Controls .................................................................................. 11
3.2.1 Display Panel ................................................................................................11
3.2.2 Display .......................................................................................................... 13
3.2.3 Back Panel ....................................................................................................14
3.3 Languages .............................................................................................. 16
3.3.1 Language Selection ......................................................................................16
3.4 Ice Buildup and Purge Procedure (4180 Only) ...................................... 16
3.4.1 Icing Warning ................................................................................................16
3.4.2 Purge Procedure ...........................................................................................16
3.4.3 Removing Ice Buildup on the Target .............................................................17
3.5 Emissivity Setting of the IR Thermometer ............................................... 17
3.5.1 Apparent Temperature Setting Limits ............................................................17
3.6 Forced Air and Convection ..................................................................... 18
4 Menu Structure .......................................................................19
4.1 Temperature Setup Menu ....................................................................... 19
4.2 Program Menu ........................................................................................ 20
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4180, 4181 Precision Infrared Calibrator
4.3 System Menu .......................................................................................... 21
4.4 View Temperature Menu ......................................................................... 22
5 Maintenance ...........................................................................23
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Tables
Table 1 Symbols used ........................................................................................ 2
Table 2 Specifications ....................................................................................... 9
Table 3 Apparent temperature limits ................................................................ 18
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4180, 4181 Precision Infrared Calibrator
Figures
Figure 1 Display panel ..................................................................................... 12
Figure 2 Main screen ....................................................................................... 14
Figure 3 418X back panel ................................................................................ 15
Figure 4 Steps to language selection .............................................................. 16
Figure 5 Temperature setup menu ................................................................... 19
Figure 6 Program menu ................................................................................... 20
Figure 7 System menu ..................................................................................... 21
Figure 8 View temp menu ................................................................................ 22
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Before You Start
Unpacking
Before You Start1
Introduction1.1
The Model 4180/4181 Portable IR Calibrator may be used as a portable instrument or
bench top temperature calibrator for calibrating point IR thermometers. The 4180/4181
is small enough to use in the field, and accurate enough to use in the lab.
The instruments feature:
L
Rapid heating and cooling
L
RS-232 interface capability
Built in programmable features include:
L
Temperature scan rate control
L
Eight set-point memory
L
Adjustable readout in °C or °F
L
Adjustable Emissivity
The temperature is accurately controlled by Hart’s digital controller. The controller
uses a precision platinum RTD as a sensor and controls the surface temperature with a
solid state relay (triac) driven heater (4181) and FET driven Peltier modules (4180).
The LCD display continuously shows the current temperature. The temperature may
be easily set with the control buttons to any desired temperature within the specified
range. The instrument’s multiple fault protection devices insure user and instrument
safety and protection.
The 4180/4181 calibrators are designed for portability and ease of operation. Through
proper use the instrument will provide continued accurate calibration of IR temperature measurement devices. The user should be familiar with the safety guidelines and
operating procedures of the calibrator as described in this User’s Guide.
Unique patent pending safety features make the instruments the safest IR calibrators
available. The Block Temperature Indicator (Patent Pending) shows the user when
the target temperature is above 50°C letting the user know when it is safe to place the
target cover on the instrument and/or move it to a different location. The indicator
remains illuminated when the instrument is energized and above 50°C, but with mains
power removed, it will flash until the target temperature drops below 50°C.
Unpacking1.2
Unpack the calibrator carefully and inspect it for any damage that may have occurred
during shipment. If there is shipping damage, notify the carrier immediately.
Verify that the following components are present:
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4180, 4181 Precision Infrared Calibrator
Symbols Used
4180
L
4180 IR Calibrator
L
Report of Calibration
L
Power Cord
L
User’s Guide
L
Documentation CD
L
Target Cover
L
Serial Cable
4181
L
4181 IR Calibrator
L
Report of Calibration
L
Power Cord
L
User’s Guide
L
Documentation CD
L
Serial Cable
If all items are not present, contact an Authorized Service Center (see Section 1.6
Authorized Service Centers on page 7).
Symbols Used1.3
Table 1 lists the International Electrical Symbols. Some or all of these symbols may be
used on the instrument or in this guide.
Symbols usedTable 1
Symbol Description
AC (Alternating Current)
AC-DC
Battery
Complies with European Union directives
DC
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Symbol Description
Double Insulated
Electric Shock
Fuse
PE Ground
Hot Surface (Burn Hazard)
Read the User’s Guide (Important Information)
Before You Start
Safety Information
Off
On
Canadian Standards Association
C-TICK Australian EMC mark
The European Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/
EC) mark.
Safety Information1.4
The Portable IR Calibrators are designed in accordance with IEC 61010-1, IEC
61010-2-010 and CAN/CSA 22.2 No 61010.1-04. Use this instrument only as specified in this manual. Otherwise, the protection provided by the instrument may be
impaired.
The following definitions apply to the terms “Warning” and “Caution”.
L
“Warning” identifies conditions and actions that may pose hazards to the user.
L
“Caution” identifies conditions and actions that may damage the instrument
being used.
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4180, 4181 Precision Infrared Calibrator
Safety Information
Warnings1.4.1
To avoid personal injury, follow these guidelines.
General
DO NOT use this instrument for any application other than calibration work. The
instrument was designed for temperature calibration. Any other use of the instrument
may cause unknown hazards to the user.
This instrument is intended for indoor use only.
Follow all safety guidelines listed in the User’s Guide.
Calibration Equipment should only be used by Trained Personnel.
If this equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Before initial use, or after transport, or after storage in humid or semi-humid environments, or anytime the instrument has not been energized for more than 10 days, the
instrument needs to be energized for a “dry-out” period of 2 hours before it can be assumed to meet all of the safety requirements of the IEC 61010-1. If the product is wet
or has been in a wet environment, take necessary measures to remove moisture prior
to applying power such as storage in a low humidity temperature chamber operating at
50°C for 4 hours or more.
Overhead clearance is required for the 4181. At least 1 meter (39 inches) overhead
clearance is recommended. DO NOT place the instrument under a cabinet or other
structure. Allow at least 15 cm (6 inches) of clearance around the instrument.
DO NOT face the target towards a wall or other object. The target emits high amounts
of heat and will cause objects to heat up or catch fire.
DO NOT use this instrument in environments other than those listed in the User’s
Guide.
DO NOT operate near flammable materials.
Use of this instrument at HIGH TEMPERATURES for extended periods of time
requires caution.
Completely unattended high temperature operation is not recommended due to safety
hazards that can arise.
Do not use the instrument if it operates abnormally. Protection may be impaired. When
in doubt, have the instrument serviced.
Burn Hazard
DO NOT touch the IR target surface or areas surrounding the target of the instrument.
If the instrument is set at 100°C, the display reads 100°C, the target surface may be
100°C or greater. The sheet metal of the instrument may exhibit extreme temperatures
for areas close to the IR target surface.
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Before You Start
Safety Information
This instrument is equipped with a Block Temperature Indicator (front panel LED
HOT indicator – Patent Pending). When the indicator is flashing, the instrument is
disconnected from mains power and the temperature of the block is above 50°C. When
the indicator is illuminated, always on, the instrument is powered and the block temperature is above 50°C.
Temperatures above 70°C (158°F) are considered hazardous. Use extreme care when
working with these temperatures. Observe all warnings and cautions given in this
manual.
DO NOT turn off the instrument at temperatures higher than 100°C. This could create
a hazardous situation. Select a set-point less than 100°C and allow the instrument to
cool before turning it off.
DO NOT operate instrument in any orientation other than vertical (target face perpen-
dicular to installation surface). Risk of fire or burn hazard may result due to excessive
heat buildup.
The instrument can generate extreme temperatures. Precautions must be taken to prevent personal injury or damage to objects.
The air around the instrument can reach temperatures greater that 100°C.
The high temperatures present in instruments designed to operate at 300°C and higher
may result in fires and severe burns if safety precautions are not observed.
Electrical Hazard
These guidelines must be followed to ensure that the safety mechanisms in this instrument will operate properly. This instrument must be plugged into an AC only outlet
according to Section 2.1 Specifications on page 9. The power cord of the instrument
is equipped with a three-pronged grounding plug for your protection against electrical
shock hazards. It must be plugged directly into a properly grounded three-prong receptacle. The receptacle must be installed in accordance with local codes and ordinances.
Consult a qualified electrician.
DO NOT use an extension cord or adapter plug.
DO NOT operate this instrument without a properly grounded, properly polarized
power cord.
DO NOT connect the instrument to a non-grounded outlet.
For installations with polarized outlets, insure that the polarity of the connection is
correct.
HIGH VOLTAGE is used in the operation of this equipment. Contact an Authorized
Service Center (see Section 1.6 Authorized Service Centers on page 7) for obtaining
service from a qualified technician. No user serviceable parts.
If supplied with user accessible fuses, always replace the fuse with one of the same
rating, voltage, and type.
Always replace the power cord with an approved cord of the correct rating and type.
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4180, 4181 Precision Infrared Calibrator
Safety Information
Cautions1.4.2
Protect the target against dirt and damage – scrapes and scratches. A well kept target
surface, free from dirt and damage, produces better measurements. Use the target
cover whenever the instrument is not in use to protect the target. Always use the target
cover when transporting the instrument, but remember to never transport the instrument when the target temperature is above 50°C.
DO NOT touch the target. Oils and salts from the skin will permanently damage the
target surface at high temperatures.
When ice forms on the target, change the instrument set-point higher than 50°C to
melt the excess ice. DO NOT wipe the front plate (target). Change the set-point to
100°C or higher to evaporate the excess water.
DO NOT use fluids to clean the target surface.
DO NOT use shop air to clean the target surface. Oil and contaminants in the shop air
could contaminate the surface.
DO NOT use canned, compressed air (used to clean a computer) to clean the target
surface. Chemicals in the air could contaminate the target surface.
DO NOT force cool the surface. The surface should not be cooled by any method
other than natural convection. Forced air can often have oil or water in it. Even water
can leave mineral deposits on the surface. Trying to cool the surface too quickly can
also cause thermal shock to the emissive surface.
DO NOT use liquid nitrogen (LN2) to quick cool the target.
DO NOT plug the instrument into 230V if the fuse holder reads 115V. This action will
cause the fuses to blow and may damage the instrument.
Component lifetime can be shortened by continuous high temperature operation.
DO NOT change the values of the calibration constants from the factory set values.
Calibration constants shall only be changed by qualified and authorized personnel. The
correct setting of these parameters is important to the safety and proper operation of
the calibrator.
DO use a ground fault interrupt device.
Always operate this instrument at room temperatures as stated in Section 2.2 Environmental Conditions on page 10.
The instrument is a precision instrument. Although is has been designed for optimum
durability and trouble free operation, it must be handled with care. It is important
to keep the calibration well and the IR target surface clean and clear of any foreign
matter.
Always carry the instrument in an upright position. The convenient pull-up handle allows one hand carrying.
DO NOT operate the instrument in excessively wet, oily, dusty, or dirty environments.
DO NOT operate near flammable materials.
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If a main supply power fluctuation occurs, immediately turn off the instrument. Wait
until the power has stabilized before re-energizing the instrument.
Use the target cover at temperatures below ambient (25°C). If ice or liquid water
forms on the target, IR thermometers will not indicate the correct temperature.
1.5 CE Comments
EMC Directive1.5.1
Hart’s equipment has been tested to meet the European Electromagnetic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration of Conformity for your
instrument lists the specific standards to which the instrument was tested.
The instrument was designed specifically as a test and measuring device. Compliance
to the EMC directive is through IEC 61326-1 Electrical equipment for measurement,
control and laboratory use.
As noted in the IEC 61326-1, the instrument can have varying configurations. The
instrument was tested in a typical configuration with shielded RS-232 cables.
Before You Start
Authorized Service Centers
Emission Testing1.5.2
The instrument fulfills the limit requirements for Class A equipment. The instrument
was not designed to be used in domestic establishments.
Low Voltage Directive (Safety)1.5.3
In order to comply with the European Low Voltage Directive (2006/95/EC), Hart’s
equipment has been designed to meet the EN 61010-1 and EN 61010-2-010 standards.
1.6 Authorized Service Centers
Please contact one of the following Authorized Service Centers to coordinate service
on your Hart product:
Fluke Corporation
Hart Scientific Division
799 E. Utah Valley Drive
American Fork, UT 84003-9775
USA
Phone: +1.801.763.1600
Telefax: +1.801.763.1010
E-mail: support@hartscientific.com
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4180, 4181 Precision Infrared Calibrator
Authorized Service Centers
Fluke Nederland B.V.
Customer Support Services
Science Park Eindhoven 5108
5692 EC Son
NETHERLANDS
Phone: +31-402-675300
Telefax: +31-402-675321
E-mail: ServiceDesk@fluke.nl
Fluke Int’l Corporation
Service Center - Instrimpex
Room 2301 Sciteck Tower
22 Jianguomenwai Dajie
Chao Yang District
Beijing 100004, PRC
CHINA
Phone: +86-10-6-512-3436
Telefax: +86-10-6-512-3437
E-mail: xingye.han@fluke.com.cn
Fluke South East Asia Pte Ltd.
Fluke ASEAN Regional Office
Service Center
60 Alexandra Terrace #03-16
The Comtech (Lobby D)
118502
SINGAPORE
Phone: +65-6799-5588
Telefax: +65-6799-5589
E-mail: anthony.ng@fluke.com
When contacting a Service Centers for support, please have the following information
available:
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Model Number
L
Serial Number
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Voltage
L
Complete description of the problem
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Specications and Environmental Conditions2
2.1 Specications
SpecificationsTable 2
Temperature range
(@ 23 °C ambient,
0.95 emissivity)
Display accuracy
Stability
Uniformity3
(5.0 in dia of center
of target)
Uniformity3
(2.0 in dia of center
of target)
Heating time
Cooling time
Stabilization time
Nominal emissivity
Thermometer emissivity
compensation
Target diameter
Computer interface
Power
Fuse(s)
Size (HxWxD)
Weight
Safety
1
For 8 Mm to 14 Mm spectral band thermometers with emissivity set between 0.9 and
1.0
2
The uniformity specification refers to how IR thermometers with different spot sizes
both focused at the center of the target will measure the same temperature.
3
The target has a nominal emissivity of 0.95, however it is radiometrically calibrated to
minimize emissivity related uncertainties.
1
3
Specications and Environmental Conditions
4180 4181
–15 °C to 120 °C 35 °C to 500 °C
± 0.40 °C at –15 °C
± 0.40 °C at 0 °C
± 0.50 °C at 50 °C
± 0.50 °C at 100 °C
± 0.55 °C at 120 °C
± 0.10 °C at –15 °C
± 0.05 °C at 0 °C
± 0.10 °C at 120 °C
± 0.15 °C at –15 °C
± 0.10 °C at 0 °C
± 0.25 °C at 120 °C
± 0.10 °C at -15 °C
± 0.10 °C at 0 °C
± 0.20 °C at 120 °C
15 min: –15 °C to 120 °C
14 min: 23 °C to 120 °C
15 min: 120 °C to 23 °C
20 min: 23 °C to –15 °C
10 minutes 10 minutes
0.95 0.95
0.9 to 1.0
152.4 mm (6 in)
RS-232
115 V ac (± 10%), 6.3 A,
50/60 Hz, 630 W
230 V ac (± 10%), 3.15 A,
50/60 Hz, 630 W
115 V ac 6.3 A, 250 V, slow
blow
230 V ac 3.15 A, 250 V, T
356 mm x 241 mm x 216 mm
(14 in x 9.5 in x 8.5 in)
9.1 kg (20 lb) 9.5 kg (21 lb)
EN 61010-1:2001, CAN/CSA C22.2 No. 61010.1-04
± 0.35 °C at 35 °C
± 0.50 °C at 100 °C
± 0.70 °C at 200 °C
± 1.20 °C at 350 °C
± 1.60 °C at 500 °C
± 0.05 °C at 35 °C
± 0.20 °C at 200 °C
± 0.40 °C at 500 °C
± 0.10 °C at 35 °C
± 0.50 °C at 200 °C
± 1.00 °C at 500 °C
± 0.10 °C at 35 °C
± 0.25 °C at 200 °C
± 0.50 °C at 500 °C
20 min: 35 °C to 500 °C
100 min: 500 °C to 35 °C
40 min: 500 °C to 100 °C
115 V ac (± 10%), 10 A,
50/60 Hz, 1000 W
230 V a (± 10%), 5 A,
50/60 Hz, 1000 W
115 V ac 10 A, 250 V, fast
230 V ac 5 A, 250 V, F
356 mm x 241 mm x 216 mm
(14 in x 9.5 in x 8.5 in)
Specications
blow
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4180, 4181 Precision Infrared Calibrator
Environmental Conditions
Environmental Conditions2.2
Although the instrument has been designed for optimum durability and trouble-free
operation, it must be handled with care. The instrument should not be operated in an
excessively dusty or dirty environment. Maintenance and cleaning recommendations
can be found in the Maintenance section of this manual.
The instrument operates safely under the following conditions:
L
ambient temperature range: 5-35°C (41-95°F)
L
ambient relative humidity: maximum 80% for temperature <31°C, decreasing
linearly to 50% at 40°C
L
mains voltage within ±10% of nominal
L
vibrations in the calibration environment should be minimized
L
altitudes less than 2,000 meters
L
indoor use only
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Quick Start
Parts and Controls
Quick Start3
Setup3.1
Note: The instrument will not heat, cool, or control until the "SET PT." parameter
is "Enabled".
Place the instrument on a flat surface with at least 15 cm (6 inches) of free space
around the instrument. Overhead clearance is required. DO NOT place under a cabinet
or structure.
Plug the power cord of the instrument into a mains outlet of the proper voltage,
frequency, and current capability (see Section 2.1 Specifications on page 9 for power
details). Observe that the nominal voltage corresponds to that indicated on the power
entry model at the back of the calibrator.
Turn on the power to the calibrator by toggling the switch on the power entry module.
After a brief self-test, the controller should begin normal operation. The main screen
will appear within 30 seconds. If the instrument fails to operate, please check the
power connection. The display will show the well temperature, and wait for user input
before further operation.
Press “SET PT.” and use the arrow keys to set the desired set-point temperature. Press
“ENTER” to save the desire set-point and enable the IR Calibrator. After five (5) seconds the instrument should start to operate normally and heat or cool to the designated
set-point.
Parts and Controls3.2
This section describes the exterior features of the IR Calibrator. All interface buttons
are found on the front of the IR Calibrator (Figure 1 on next page). Power connection
and serial connections are found on the back of the instrument (see Figure 3 on page
15).
Display Panel3.2.1
Display (1)
The display is a 240 x 160 pixel monochrome graphics LCD device with a bright LED
backlight. The display is used to show current control temperature, measurements,
status information, operating parameters, and soft key functions.
SET PT. (2)
The Set Pt. Key allows you to enable the instrument to heat or cool to a desired setpoint. Until this key is enabled, the instrument will not heat or cool. It is in a “sleep”
state for safety of the operator and instrument.
°C/°F Key (3)
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4180, 4181 Precision Infrared Calibrator
Parts and Controls
The °C/°F Key allows you to change the displayed temperature units from °C to °F
and vice versa.
Menu Key (4)
The Menu Key allows the user to access all parameter and settings menus. From the
main menu, the user can use the soft keys to access submenus and functions.
Exit Key (5)
The Exit Key allows you to exit menus and cancel newly entered values.
Arrow Keys (6)
The Arrow Keys allow you to move the cursor on the display, change the display layout, and adjust the contrast of the display.
Enter Key (7)
The Enter Key allows you to select menus and accept new values.
Soft Keys (8)
The Soft Keys are the four buttons immediately below the display (labeled F1 to F4).
The functions of the soft keys are indicated on the display above the buttons. The
function of the keys may change depending on the menu or function that is selected.
Block Temperature Indicator (9) [Patent Pending]
The block temperature indicator allows users to know when it is safe (50°C to 60°C)
to install the target cover. The indicator illuminates when the target exceeds approximately 50°C. The indicator illuminates until the target cools to less than approximately
50°C. If the instrument is disconnected from mains power, the indicator ashes until
the target temperature is less than approximately 50°C.
Figure 1 Display panel
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Quick Start
Parts and Controls
Display3.2.2
The front panel display is shown in detail in Figure 2 on next page.
Process Temperature (1)
The most recent block temperature measurement is shown in large digits in the box at
the top of the screen.
Set-Point Temperature (2)
The current set-point temperature is displayed just below the Process Temperature.
Emissivity Setting (IRT E) (3)
The current infrared thermometer emissivity setting is displayed below the current setpoint temperature.
Calibration W avelength (CAL L) (4)
The current calibration wavelength selected. The wavelength band at which the instrument was calibrated.
Stability Status (5)
On the right hand side of the screen, a graph displays the current status of the stability
of the IR Calibrator.
Heating/Cooling Status (6)
Just below the stability graph, a bar graph indicates HEATING, COOLING, or CUTOUT. This status graph indicates the current level of heating or cooling if the instrument is not in cutout mode.
Soft Key Functions (7) (not shown)
The four sets of text at the bottom of the display indicate the functions of the soft keys
(F1–F4). These functions change with each menu.
Editing Windows
While setting up and operating the instrument, you are often required to enter or select
parameters. Editing windows appear on the screen when necessary to show the values
of parameters and allow edits.
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4180, 4181 Precision Infrared Calibrator
Parts and Controls
Figure 2 Main screen
Back Panel3.2.3
The following are found on the back panel of the IR Calibrator (see Figure 3 on opposite page).
Fan (1)
The fan is located high in the center of the back of the instrument. Do not obstruct the
airflow of the fan. Leave at least 6 inches of air flow around the instrument.
Power Entry Module (2)
The power supply cord attaches to the power entry module. Plug the cord into an AC
mains supply appropriate for the voltage displayed on the power entry module and as
specified in Section 2.1 Specifications on page 9.
Power Cord
The power entry module contains the attachment for the power supply cord to the right
hand side back panel. Plug the cord into an AC mains supply appropriate for the voltage range as specified in the specifications tables.
Power Switch
14
The power switch is located on the power entry module of the instrument.
Fuses
The 418X fuses are located inside the power entry module of the instrument (Figure 3
on opposite page).
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Quick Start
Parts and Controls
If necessary, fuses must be replaced according to Section 2.1 Specications on page 9.
Serial Connector (3)
The serial (RS-232) interface can be used to transmit measurements and control the
operation of the IR Calibrator.
Figure 3 418X back panel
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4180, 4181 Precision Infrared Calibrator
Languages
Languages3.3
The display on the instrument can be set to different languages depending on the
configuration.
L
European: English, French, Spanish, Itialian, German, Chinese, Japanese
L
Russian: Russian, English
3.3.1 Language Selection
The languages are located in the Menu system under the System Menu/Display Setup.
Select the language to be displayed by using the left and right arrow keys (see Section
4.3 System Menu on page 21).
Figure 4 Steps to language selection
Reset to English Language3.3.1.1
F1 + F4 temporarily displays English, or returns to the selected language. The selected
language will resume after the power is switched off and on again. To permanently
select English, follow the instructions listed in Section 3.3.1 Language Selection.
Ice Buildup and Purge Procedure (4180 Only)3.4
Icing Warning3.4.1
At the factory, the instrument calibration is done with the target free of any ice or
moisture. Ice or moisture on the target changes the target’s emissivity and apparent
temperature. If there is any ice or moisture (even though it is a slight amount) on the
target, the display temperature accuracy is invalid. In addition, ice buildup can damage
the surface coating causing the radiometric calibration to drift.
The user of the IR Precision Calibrator should always avoid ice buildup. To facilitate
this, a cover with a purge inlet is provided with the 4180. It is recommended that the
target cover be used at any set-point below the dew point. Depending on the ambient
humidity of the environment where the target is used, the dew point can be as high as
the ambient temperature of that environment.
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Purge Procedure3.4.2
Use of the cover allows the target to be used at temperatures below the dew point. The
target is less likely to form ice while the target is covered. The target cover is provided
with a purge inlet to further prevent ice buildup. To use the purge, the user will need
a 6mm (0.25 in) outside diameter tube. Connect tubing to the purge inlet on the target
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cover. You must use a dry gas for the purge. This means the gas should have a dew
point below -15°C. We recommend nitrogen or dried air. If the gas contains any water
vapor, ice or moisture will form on the target. A relatively low flow rate of 2.4 – 4.8
liters/min (5 – 10 CFH) is recommended for the purge.
Do not leave the target uncovered for more than 5 seconds, since it can cause ice to
form on the target. To make measurements below the dew point, do the following:
Put the target cover in place.1.
Adjust the set-point to the desired temperature and allow the instrument to 2.
stabilize at that temperature.
Remove the target cover when the target stabilizes.3.
Take a sample4.
Replace the target cover.5.
3.4.3 Removing Ice Buildup on the Target
If a small amount of ice has formed, you can place the cover back on the target and
allow the purge gas to sublime the ice. If there is more ice or you don’t have a purge
available, change the instrument set-point to a temperature equal to or greater than
50°C with the target uncovered. Allow all ice to melt and all water to dry before re-
turning target to use. DO NOT wipe the target.
Quick Start
Emissivity Setting of the IR Thermometer
Emissivity Setting of the IR Thermometer3.5
The 4180 and 4181 Precision IR Calibrators are calibrated with a radiometric calibration. This calibration is done with a highly accurate IR thermometer. This IR thermometer has an emissivity setting of 0.950 during the 4180 or 4181 calibration. Therefore,
when calibrating IR thermometers using the 4180 or 4181, it is best practice to use an
IR thermometer emissivity setting of 0.950. Some IR thermometers do not have an adjustable emissivity setting. Most of these will have emissivity set as 0.95. In either of
these cases, the apparent emissivity setting of the instrument should also be set to 0.95.
If the IR thermometer being used does not have an emissivity setting of 0.95, the 4180
and 4181 allows adjustment of emissivity (IRT ε, from 0.90 to 1.00). Refer to Section
4 Menu Structure on page 19 for information on how to access IRT ε in the controller
menu.
If you are not certain of the emissivity setting of the IR thermometer you are calibrating, consult your IR thermometer’s User’s Guide or your IR thermometer’s
manufacturer.
Apparent Temperature Setting Limits3.5.1
The IR calibrator is calibrated with an emissivity setting of 0.95. The instruments have
a variable emissivity adjustment that allows the user to vary their apparent emissivity
from 0.90 to 1.00. This setting should match the IR thermometer's emissivity setting. It
is best to use the emissivity setting of 0.95. However, some IR thermometers do not allow for an emissivity setting of 0.95. For these instruments, the calibrator's emissivity
setting should be set to the IR thermometer's emissivity setting. Due to safety issues
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4180, 4181 Precision Infrared Calibrator
Forced Air and Convection
and the physical limits of the instrument, the temperature range of the instrument may
be limited from the specified range when using an emissivity setting other than 0.95. A
table of this limitation is shown in Table 3.
Apparent temperature limitsTable 3
4180 4181
E HI (°C) LO (°C) HI (°C) LO (°C)
0.90 120.0 –15.0 500.0 35.0
0.91 120.0 –15.0 500.0 35.0
0.92 120.0 –15.0 500.0 35.0
0.93 120.0 –15.0 500.0 35.0
0.94 120.0 –15.0 500.0 35.0
0.95 120.0 –15.0 500.0 35.0
0.96 119.2 –14.5 496.6 35.0
0.97 118.4 –14.0 493.2 35.0
0.98 117.6 –13.5 489.8 35.0
0.99 116.8 –13.0 486.4 35.0
1.00 116.0 –12.5 483.0 35.0
Forced Air and Convection3.6
Since the 4180 and 4181 have a large surface area, a major component of the temperature uncertainty is caused by changes in convection. Because of this, the user should
keep the instrument away from areas with large amounts of air flow or drafts.
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4 Menu Structure
Temperature Setup Menu4.1
F1 F2 F3 F4
TEMP SETUP PROG MENU SYSTEM MENU VIEW TEMP
F1 SCAN <change the scan rate and enable alarms>
SCAN RATE: <edit>
STABLE LIMIT: <edit>
STABLE ALARM: (ENABLE/DISABLE) <select>
F2 IRT <set display emissivity to match IR thermometer>
IRT ε: <edit>
F3 CUTOUT <modify hard and soft cutout>
SOFT CUTOUT: <edit>
HARD CUTOUT: <view only>
Hot Keys
SETPoinT Key - SET TEMPERATURE SETPOINT
SETPOINT: <set point temperature> <edit>
ENTER <enable control of the instrument>
F1 – SELECT PRESET <1-8> <select>
F1 – EDIT PRESET <1-8> <edit>
F4 – SAVE/DISABLE <disables control of the instrument>
ºC / ºF Key - Units: <°C, °F>
Up/ Down Arrow Keys <contrast adjust> <toggle>
Up Key: Lighter
Down Key: Darker
F1 & F4 Keys (same time)
F1 & F3 Keys (same time)
Figure 5 Temperature setup menu
<reset to English language>
<turn off key press beep>
Menu Structure
Temperature Setup Menu
4180/4181 MAIN MENU
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4180, 4181 Precision Infrared Calibrator
Program Menu
Program Menu4.2
4180/4181 MAIN MENU
F1 F2 F3 F4
TEMP SETUP PROG MENU SYSTEM MENU VIEW TEMP
F1 SELECT PROGram
PROGRAM: <1, … , 8> <select> Each program is represented by a unique number
NAME: <edit> Program name (may represent a thermometer model number)
PROGRAM: <view only>
NAME: <view only>
IRT ε: <edit> The emissivity setting of the thermometer to be calibrated
DISTANCE: <edit> <centimeters> Distance from thermometer to target during calibration
APERTURE: <YES, NO> <select> Yes indicates that an external aperture is required during calibration
STEPS: <1-8> <edit> The number of temperature set points used in the calibration program
SETPOINT 1: <edit>
SETPOINT 2: <edit>
SETPOINT 3: <edit>
SETPOINT 4: <edit>
SETPOINT 5: <edit>
SETPOINT 6: <edit>
SETPOINT 7: <edit>
SETPOINT 8: <edit>
F2 PROGram OPTION
SETTLE TEST: <AUTO, LIMIT> <select> Criteria for determining when the temperature of the target is stable
SOAK MINUTES: <edit> Length of time in minutes at which the calibrator remains at the set point temperature
ADVANCE: <PROMPT,AUTO> <select> Choice of advancing to the next step in the program automatically or prompted by user
CYCLES: <edit> Number of times the calibrator repeats the ramp/soak program
F3 RUN PROGram
PROGRAM: <view only> Each program is represented by a unique number
NAME: <view only> Program name (usually a thermometer model number)
STATUS: <RUN, OFF> <select> Run ind icates that a program is in process and off indicates a program is not
F1 EDIT PROGram
Figure 6 Program menu
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Menu Structure
System Menu
4.3 System Menu
4180/4181 MAIN MENU
F1 F2 F3 F4
TEMP SETUP PROG MENU SYSTEM VIEW TEMP
F1 SYSTEM SETUP
F1 DISPLaY SETUP
LANGUAGE: <ENGLISH, FRENCH, SPANISH, ITALIAN , GERMAN, RUSSIAN, JAPANESE, CHINESE ><select>
DECIMAL: <PERIOD, COMMA> <select>
KEY AUDIO: <OFF, ON> <select>
F2 COMM SETUP
BAUD RATE: <38400, 19200, 9600, 4800, 2400, 1200> <select>
LINEFEED: <ON, OFF> <select>
F2 PASSWORD
USER PASSWORD: <edit>
PROTECTION: <LOW, HIGH> <select>
F3 CALIBrate
F1 CONTRoL setup
TEMP ProportionalBAND: <edit>
TEMPerature INTegration:
TEMPerature DERivative:
F2 IR CALibration
IRCAL 1: <edit>
IRCAL 2:
IRCAL 3:
SURFACE: <edit>
WAVELENGTH: <8-14 um, USER> <select>
CALibration DATE: <edit>
<edit>
<edit>
F4 SYSTEM INFOrmation
MODEL: <view only>
SERIAL: <view only>
FW VERSION: <view only>
CALibration DATe: <view only>
Figure 7 System menu
<edit>
<edit>
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4180, 4181 Precision Infrared Calibrator
View Temperature Menu
View Temperature Menu4.4
4180/4181 MAIN MENU
F1 F2 F3 F4
Temp SetUp Prog Menu System Menu VIEW TEMP
BLOCK TEMPerature <view only> The temperature that would be displayed if IRT H were set to 0.95
Figure 8 View temp menu
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Maintenance
Maintenance5
The instrument has been designed with the utmost care. Ease of operation and simplicity of maintenance have been a central theme in the product development. Therefore,
with proper care the instrument should require very little maintenance. Avoid operating the instrument in an oily, wet, dirty, or dusty environment.
Ice will build up on the target surface over a period of time, see see Section 3.4.3
Removing Ice Buildup on the Target on page 17.
If the outside of the instrument becomes soiled, it may be wiped clean with a damp
cloth and mild detergent. DO NOT use harsh chemicals to clean the instrument, which
may damage the paint. DO NOT wipe the front plate (target).
It is important to keep the target surface of the instrument clean and clear of any
foreign matter. Always utilize the target cover when the instrument is not in use and
during transport.
The instrument should be handled with care. Avoid knocking or dropping the
instrument.
If a hazardous material is spilled on or inside the instrument, the user is responsible
for taking the appropriate decontamination steps as outlined by the National Safety
Council with respect to the material.
If the mains supply cord becomes damaged, replace it with a cord with the appropriate gauge wire for the current of the instrument. If there are any questions, contact an
Authorized Service Center (see Section 1.6 Authorized Service Centers on page 7) for
more information.
Before using any cleaning or decontamination method except those recommended by
Hart, users should check with an Authorized Service Center (see Section 1.6 Authorized Service Centers on page 7) to be sure that the proposed method does not damage
the equipment.
If the instrument is used in a manner not in accordance with the equipment design, the
operation of the instrument may be impaired or safety hazards may arise.
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