CorDEX Instruments TC7150 User manual

USER
MANUAL

TC7150

INTRINSICALLY
SAFE THERMAL
IMAGING CAMERA

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Congratulations – You are

the owner of the first fully

CONTENTS

radiometric thermal imaging
camera designed and certified
specifically for use in hazardous
(explosive) atmospheres.

TC7150 is certified MET laboratories, inc to the following standards:

• ANSI/ISA-12.12.01-2013: Nonincendive Electrical Equipment for

Use in Class I Division II Groups A,B,C,D Locations.
– Approved 3rd June 2013

• UL61010-1 Safe Requirements for Electrical Equipment for

Measurement, Control and Laboratory Use –
Part 1: General Requirements, Edition Number 3

Getting To Know Your TC7150 4

Getting Started 6

A Guide To Charging Your TC7150 7

A Guide To Your Home Screen 8

Focus 9

Creating A Thermal Image 9

Menu Selection 11

RFID 12

Analysis 13

Settings 14

Parameters 15

Level/Span 16

Storing And Analysing Images 17

Technical Information 18

Certification 19

Ten Suggestions For Thermography Best Practice 20

! !

Please ensure that the
certification matches or
exceeds the hazardous area
characteristics that will be
clearly displayed on site.

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Whilst in a hazardous area, do
not attempt to change batteries
or download images, these
tasks should only be undertaken
after returning to a safe area.

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GETTING TO KNOW

TC7150 – Intrinsically Safe Thermal Imaging Camera

YOUR TC7150

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Neck Strap Points Wrist Strap Points

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1 4 7

Image Save Menu Key Level +

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2 5

RFID Scanner USB Connection Point

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Focus Ring 135˚ Swivel Lens

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2 5 8

Power Switch Span + Level -

3 6 9

View Key Span - Joystick

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5

GETTING STARTED A GUIDE TO CHARGING

TC7150 – Intrinsically Safe Thermal Imaging Camera

YOUR TC7150

1

Check the contents of your TC7150.
The shipping case should include the
following items:

• TC7150 Thermal Imaging Camera

• USB Communication Wand

• USD Documentation Key

• Certificate of Conformity

• Neck Strap

• Rechargeable Battery Pack

• Lens Cleaner

• Wrist Strap

• Access key

• Battery Charging Station and Mains

Charging unit

2

Please ensure that you fully charge the
batter y prior to use. The battery is charged
using the docking station supplied.
(See page 7.)

3

Before using TC7150 consider the objects
that you are going to image. Will you use
comparative thermography (simply looking
for temperature difference) or are you going
to at tempt to make an accurate temperature
measurement?

4

For comparative thermography, do not
amend the emissivity setting and leave this
constant every time you carr y out imaging.
Temperature differences over time will then
be valid although the ambient temperature
may have changed as well as the electrical
or mechanical load of the object.

5

For accurate thermal measurement the
emissivity of the object will need to be
considered and the camera emissivity
setting corrected.

In addition background and reflected ambient
will need to be considered as well as thermal
and solar reflection and relative humidity.

!

Please Note: It is recommended
that users attend formal
thermography training to
understand the implication of
these parameters.

1

Remove the battery from the battery
compartment of the camera.

2

Plug the mains charging unit to a mains circuit
and plug the jack from the charging unit into
the battery station.

3

Inser t the battery into the battery charging
compartment on the bat ter y charging station.
A green light will show that the unit has
power. The charging light on the charging unit
will flash amber whilst the charger assesses
the charge held on the battery. Following this
a solid amber light will be displayed showing
that the unit is charging.

4

When the amber light is no longer displayed,
the battery is fully charged.

5

Remove the battery from the charging
compartment.

6

Inser t the battery pack into the camera paying
careful attention to the orientation of the pack.

7

Inser t the battery pack into the camera paying
careful attention to the orientation of the pack.

1

Rechargeable/Removable Battery

2

Mains Charging Unit

3

Battery Charging Station

2

1

3

!

Do not remove or replace batteries
within the hazardous area. The

battery pack must be removed from
the equipment in the safe area when
charging and the battery pack can
only be charged in the safe area.
Remove battery pack from camera
when not in use.

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A GUIDE TO YOUR

TC7150 – Intrinsically Safe Thermal Imaging Camera

HOME SCREEN

FOCUS

1

RFID Tag Status Bar

2

Temperature Reading Spot #1

3

Temperature Spot #1

4

Maximum Image Temerature

5

Temperature Scale

6

Minimum Image Temperature

7

Battery Charge Indicator

8

Ambient Temperature Selected

9

Reference Temperature Selected

10

Relative Humidity Selected

11

Emissivity Selected

12

IW Transmission Correction Icon

1

2

3

5

6

12 11 10 9 8 7

4

• Correct focus is critical in producing an

effective thermal image. Slowly rotate the
knur led orange Focus Ring on the front of
the lens until the object is clearly in view.
You may find that the best focus is easier
to achieve using a grey scale palette. Make
sure that you focus on the object to be
measured rather than the background.

CRE ATING A
THERMAL IMAGE

• Switch on the TC7150 by pressing and

holding the power switch for at least 3
seconds.

• Ensure auto Level/Span is enabled.

(See Settings section on P.13)

• Ensure that camera is correctly focused.

• You should now see a high quality thermal

image and be able to discern small spatial
and temperature differences.

• Spots (crosshairs) can be moved by using

the joystick. The temperature at that point
is displayed on the top left of the display.
When the crosshair is highlighted, pressing
and holding the joystick will allow the
emissivity of that spot only to be changed.

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MENU SELECTION

TC7150 – Intrinsically Safe Thermal Imaging Camera

• Pressing the joystick again will highlight

each spot in turn. This is followed by the
option for the TC7 150 to scan for an RFID
tag. Place the top front of the camera within
5 cm of an RFID tag and press/hold the
joystick again. The RFID tag information
will be displayed and can be edited. (See
detailed RFID Section on P.11)

• All other camera settings and features are

selected through the menu button. Press this
once to display 6 icons.

• When the NUC icon is highlighted one press

of the joystick will perform a manual Non
Uniformity Correction (NUC). This should
not be required in normal use as the NUC
is carried out automatically when required.
A distinct click will be heard when the
NUC is performed and the thermal image
will be refreshed. A manual NUC may be
required when moving to different ambient
temperatures but very frequent NUC
operation will seriously impact battery life.

• When the analysis icon is highlighted

moving the joystick down will cycle through
crosshair (spot) selection (0,1,2 or 3),
maximum temperature display (within entire
image), minimum temperature display (within
entire image). (See detailed analysis section
on P.13)

• The settings icon enables the user to select

or deselect all of the display settings. (See
detailed Settings section on P.14)

• The parameters icon allows all the

measurement parameters of the
thermal image to be altered to increase
temperature measurement accuracy. These
include emissivity, ambient temperature,
atmospheric temperature, relative
humidity and target distance. (See detailed
parameters section on P.15)

• The clock icon enables setting of all time

and date information.

• The info icon displays camera serial number,

internal memory used, remaining internal
memory and battery capacity.

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RFID ANALYSIS

TC7150 – Intrinsically Safe Thermal Imaging Camera

• When an RFID tag is located an RFID details

menu will be displayed which shows the
hexadecimal identification of the RFID tag.

• It is recommended that an alias is then

added for future identification the tag
location . Use the joystick to highlight the
alias section (complete with selecting OK)
and then input a simple description through
the qwerty options (complete with selecting
OK - this can be edited later in CorDEX
CONNECT)

• Select whether the RFID Tag is built into

a CorDEX IR window (IW2000, IW3000,
IW4000) or if it is a stand alone tag (NON
CDX).

• With the RFID tag editing complete select

SAVE to store this information for future use.

There are three settings in the analysis menu:

1

The No. spots icon allows choice of 0, 1, 2 or
3 temperature spots (crosshairs) within the
display that will update in real time

2

The Hi icon enables and disables display of
maximum temperature within the image as a
red spot (crosshair). This temperature w ill be
the same as the top of the temperature range
in auto span/level.

3

The Lo icon enables and disables display of
minimum temperature within the image as a
blue spot (crosshair) This temperature will be
the same as the bottom of the temperature
range in auto span/level.

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SETTINGS PARAMETERS

TC7150 – Intrinsically Safe Thermal Imaging Camera

There are 10 icons in the Settings Menu

1

The Scale Icon toggles the display of the
temperature colour scale.

2

The Info Fields Icon allows display of relative
humidity only, reference and ambient
temperatures only, emissivity only or all.

3

To Save battery life the Auto Off Icon allows
a choice of 2, 5 or 10 minutes of no activity
before auto off. The off setting disables this
feature.

4

The Auto S/L Icon toggles between enabling
the auto span and level setting where highest
and lowest temperatures seen within the
image are always displayed and manual
level and span where the user can manually
select span and level to adjust displayed
temperature range.

5

The Voice Tag Icon enables and disables voice
annotation when saving files.

6

The Text Tag Icon enables and disables text
annotation when saving files.

7

The Palette Icon allows the user to choose
bet ween greyscale (black hot), greyscale
(white hot), ironbow, hotmetal, rainbow, amber
and sepia colour palettes.

8

The Temperature Units Icon allows the user
to choose either Celsius, Fahrenheit or Kelvin
temperature display

9

The Temperature Units Icon allows the user
to choose either Celsius, Fahrenheit or Kelvin
temperature display

10

The Periodic Save Icon allows the user to set
the camera to automatically save an image
every 10 seconds, 30 seconds or one minute.
(This is the same as pressing the image save
but ton on the camera)

There are 5 icons in the parameters menu
all allowing the user to input temperature
measurement parameters to increase
measurement accuracy.

1

The Emissivity Icon accepts input of object
emissivity.

2

The Amb Temp Icon accepts input of object
ambient temperature.

3

The Atmos Temp Icon accepts input of
atmospheric temperature.

4

The Rel Humidity Icon accepts input of relative
humidity.

5

The Target Dist Icon accepts input of camera
distance from target object.

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LEVEL/SPAN STORING AND

TC7150 – Intrinsically Safe Thermal Imaging Camera

ANALYSING IMAGES

• Two settings are fundamental to obtaining

an effective thermal image, the first is clear
focus and the second is the correct thermal
range which is adjusted by Level and Span
Settings.

• With Auto Level and Span enabled in the

Settings Menu the range is automatically
adjusted to display both the hottest and
coldest temperature within the field of view.

• When more sensitivity is required level and

span must be set manually by disabling
auto level/span in the Settings Menu and
using the L+/Land S+/S- buttons on the
rear of the camera. Start by increasing the
span (sensitivity) to the required setting and
then increase or decrease the level (range)
so that the object is visible at the required
sensitivity.

• The Image Save Button on top of the

handgrip is used to store images (except
when periodic save is enabled).

• When you want to save an image, press the

Image Save Button and a Save Image menu
will appear. Use the joystick to select yes
and press joystick to save.

• If RFID scan is enabled in the Settings Menu

you will be asked to scan an RFID tag to link
the saved image to a location.

• If text annotation is enabled in the Settings

Menu you will be asked to select one of 4
pre-programmed text comments. After this
the image is stored in the camera memory.

• If voice annotation is enabled in the Settings

Menu you will be asked to record your
message. Press the joystick on the Record
Button, speak (maximum ten seconds) and
then press the joystick on the Stop Button
to finish.

• To review saved images within the camera

press VIEW on the rear of the camera and
use the joystick to select the image required.
Pressing the joystick will display the stored
image full size on the camera display
showing all of the parameters displayed
when the image was saved. Moving the
joystick up and down will change the display
colour palette.

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Certificate Information

TC7150 – Intrinsically Safe Thermal Imaging Camera

MET Listing No.

MET (North American) Certificate Type

Temperature Information

Measurement Range -4°F to 1112°F (-20°C to +600°C )

Accuracy ± 2°C or 2% of reading

Imaging

Image Frequency 9Hz

Detector 320 x 240 uncooled microbolometer

Thermal Sensitivity/NETD 50mK

Spectral Range 8μm to 14μm

Field of View (FOV) 25° x 20.5°

Spatial resolution (IFOV) 1.38 mrad

Minimum focus distance ≈ 4” (10cm)

Lens F 1.2

Image Capture

File Storage 8GB

File Formats CDX (Radiometric) JPEG (Non-radiometric)

Voice Annotation YES

RFID Tag Reader • Operates with 13.54MHz passive tags

E113607

Class 1, Division 2 Groups B,C,D

• Detection range up to 5cm (1.9in)

• Supports ISO/IEC15693-2,ISO/IEC18000-3 tag formats

General

Operating Temperature -4°F to 104°F (-20°C to +40°C)

Storage Temperature -40°F to +158°F (-40°C to +70°C)

Display 3.2” Backlit LCD

Software CorDEX CONNECT (Included)

Batteries Removable and Rechargeable

Battery Life Upto 8 hours

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TEN SUGGESTIONS FOR

TC7150 – Intrinsically Safe Thermal Imaging Camera

THERMOGRAPHY BEST PRACTICE

1

Ensure that the electrical or mechanical
system you are imaging is running fully loaded
to highlight thermal anomalies. A fully loaded
system will generate higher temperature
differential making it simpler to identify
problems.

2

Ensure your image is in focus – this is
impor tant not only for image clar ity but also
accurate temperature discrimination and
measurement. Focus should always be set to
the object being measured even if this means
that a surrounding area may be out of focus.

3

If working in a Zone 1 Hazardous area, ensure
that your thermal imaging camera is marked
with the appropriate certification to avoid
risk of explosion. Employers are required
to identif y hazardous areas clearly for both
employees and contractors.

4

If you are looking for temperatures above
or below a temperature threshold, use an
isotherm or maximum temperature within an
area feature to clearly highlight any excess.
These features save time and increase
awareness as surveys can take several
hours where fatigue could cause an important
anomaly to be overlooked.

5

Observe a scene from different angles to
minimise thermal reflection as an unusual
warm area could just be your own thermal
reflection. Minimise solar reflection on display
screens outdoors by changing your stance or
swivelling the lens to eliminate reflection.

6

Always consider the object emissivity first
if you want to come close to an accurate
temperature measurement, but remember
that regular comparative thermography will
also show temperature changes leading to
potential failure.

7

For comparative thermography, ensure that
thermal camera settings and especially
emissivity remain consistent. Ideally system
load should also be similar although this is
often impractical.

8

Use infrared windows to image electrical
switchgear under f ull load in safety. Never
open cabinet doors or override protection
devices, this will put you at serious risk of
injur y from arc flash. Even a change of airflow
or dust and debris being dislodged can trigger
an arc flash incident.

9

Always store images and relate them where
possible to visible images when building a
Repor t. T his makes it easier to pinpoint the
fault for scheduled maintenance. Choose a
reporting sof tware package that makes this
process simple and consider installing RFID
tags to link measurements from different
technologies to one specific location.

10

Repor t critical items separately in the Report
and draw attention to them clearly – the
whole idea of thermography for preventive
maintenance is to find faults and fix them
before they cause a breakdown and loss
of production or uptime. Choose a report
sof tware package that creates a scheduled
job sheet to pass straight to the maintenance
engineer.

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