User- and Reference manual
Temperature Calibrator
JOFRA ETC-125 A / 400 A / 400 R
Copyright 2005 AMETEK DENMARK A/S (123943-UK)
About this manual….
• The structure of the user- and reference manual
The user manual sets out the operating instructions for the
instrument. It is designed to provide a quick reference guide for
use in the field.
The reference manual is aimed at users who are familiar with
Ametek calibrators, as well as those who are not. The manual is
divided into 10 chapters which describe how to set up, operate,
service and maintain the calibrator. The technical specifications
are described and accessories may be ordered from the list of
accessories.
• Safety symbols
This manual contains a number of safety symbols designed to
draw your attention to instructions which must be followed when
using the instrument, as well as any risks involved.
Warning
Events which may compromise the safe use of
the instrument and result in considerable
personal or material damage.
Caution…
Events which may compromise the safe use of
the instrument and result in slight personal or
material damage.
Note…
123943 03 29-09-2005
Special situations which demand the user’s
attention.
List of contents
.................................................. User manual, English
.........................................Reference manual, English
29-09-2005 123943 03
User manual
Temperature Calibrator
JOFRA ETC-125 A / 400 A / 400 R
Copyright 2005 AMETEK DENMARK A/S (123943-UK)
FIG. 1
1
N
O
115 V
2
5
3 4
29-09-2005
FIG. 2
14
CALIBRATION INSTRUMENTS
AUTO
STEP
ESC
MENU
5
4
3
6
2
C
min
C
F
F
1
ETC
C
F
7
8
9
F
C
min
10
13
29-09-2005
12
11
FIG. 3
AUTO
STEP
ESC
MENU
ESC
°C
°C
MENU
29-09-2005
FIG. 4
AUTO
STEP
AUTO
STEP
29-09-2005
FIG. 5
ESC
MENU
ESC
MENU
ESC
MENU
ESC
MENU
ESC
MENU
ESC
MENU
29-09-2005
ESC
MENU
29-09-2005
List of contents
1.0 Introduction..................................................................... 2
2.0 Safety instructions ......................................................... 3
3.0 Operating the calibrator................................................. 6
3.1 Before use ...........................................................................6
3.2 Keyboard .............................................................................8
3.3 Display.................................................................................8
3.4 Connections ........................................................................9
3.5 Calibrator functions - overview ............................................9
3.6 Selecting the set-temperature .............................................9
3.7 AUTO STEP ......................................................................10
3.8 MENU................................................................................11
4.0 After use........................................................................ 12
123943 03 1
1.0 Introduction
ETC-calibrators are temperature calibrators designed to calibrate
temperature sensors.
Read this manual carefully before using the instrument and make
sure that all safety instructions and warnings are observed.
2 123943 03
2.0 Safety instructions
Read this manual carefully before using the
instrument!
In order to avoid any personal injuries and/or damage to
the instrument all safety instructions and warnings must be
observed.
Disposal – WEEE Directive
These calibrators contain Electrical and Electronic circuits
and must be recycled or disposed of properly (in
accordance with the WEEE Directive 2002/96/EC).
Warning……
About the use:
• The calibrator must not be used for any purposes other
than those described in this manual.
• The calibrator has been designed for interior use only
and should not be used in hazardous areas, where
vapour or gas leaks, etc. may constitute a danger of
explosion.
• The calibrator must be kept free within an area of 20
cm on all sides and 1 metre above the calibrator.
• Never use heat transfer fluids such as silicone, oil,
paste, etc.
These fluids may penetrate the calibrator and cause
damage or create poisonous fumes.
123943 03 3
About the insertion tubes:
• Never leave hot insertion tubes which have been
removed from the calibrator unsupervised – they may
constitute a fire hazard.
Caution – Hot surface
• Do not touch the well, the insertion tube or the grid
plate, as the calibrator is heating up / has been heated
up – they may be very hot
• Do not touch the tip of the sensor when it is removed
from the insertion tube/well – it may be very hot.
4 123943 03
Caution…
About the use:
• Do not use the instrument if the ventilator is out of
order.
About the well, insertion tube and grid plate:
• The well and the insertion tube must be clean before
use.
• The insertion tube must never be forced into the well.
The well could be damaged as a result, and the
insertion tube may get stuck.
• The insertion tube must always be removed from the
calibrator after use.
The humidity in the air may cause verdigris on the
insertion tube inside the instrument. There is a risk that
the insertion tube may be stuck if this is allowed to
happen.
Note…
The product liability only applies if the instrument is
subject to a manufacturing defect. This liability becomes
void if the user fails to follow the instructions set out in this
manual or uses unauthorised spare parts.
123943 03 5
3.0 Operating the calibrator
3.1 Before use
Warning
• The calibrator must not be used for any purposes other
than those described in this manual.
• The calibrator is designed for interior use only and
should not be used in risk-prone areas, where vapour
or gas leaks, etc. may constitute an explosives hazard.
• Never use heat transfer fluids such as silicone, oil,
paste, etc.
These fluids may penetrate the calibrator and cause
damage or create poisonous fumes.
• The calibrator must be kept clear within an area of 20
cm on all sides and 1 metre above the calibrator.
Caution – Hot surface
Do not touch the well, the insertion tube or the grid plate,
as the calibrator is heating up / has been heated up – they
may be very hot.
6 123943 03
Follow the instructions below before using the calibrator (cf. Fig. 1):
1. Place the calibrator on an even horizontal surface away from
all draughts.
Caution…
2. Check that the voltage shown on the label above the power
3. Plug in the cable below (pos. 3) the power control switch
4. The selected insertion tube is inserted into the calibrator
Do not use the instrument if the ventilator is out of order.
Ensure a free supply of air to the ventilator (pos. 5).
control switch is identical to the mains voltage (ETC-400
only). If not, the instrument should be returned to Ametek
Denmark A/S or the distributor for replacement.
(pos. 4) and check that the earth connection is present.
(ETC-125 A only).
Caution…
• The well and the insertion tube must be clean before
5. Place the sensor (pos. 1, Fig. 1).
use.
• The insertion tube must never be forced into the well.
The well could be damaged as a result, and the
insertion tube may get stuck.
123943 03 7
3.2 Keyboard
The keys on the keyboard activate the following functions (cf. Fig. 2):
POS Description
c
d
e
f
g
ENTER button used to accept chosen options.
UP ARROW button used to adjust temperature values
(value increases) and to select menu options.
DOWN ARROW button used to adjust temperature values
(value decreases) and to select menu options.
ESC/MENU button used to escape or to activate the menu
system (hold button down for min. 2 seconds).
AUTO STEP button used to activate AUTO STEP.
The function is used to switch between a series of settemperatures automatically.
3.3 Display
The various segments of the display are used to indicate the following
(cf. Fig. 2):
POS Description
h
i
Used to display Read-temperature and parameters in the
menu system.
Celsius temperature unit for top display.
j
k
l
8 123943 03
Fahrenheit temperature unit for top display.
Fahrenheit temperature unit for bottom display.
Celsius temperature unit for bottom display.
Minute time unit for bottom display.
Used to display set-temperature, time-until-stable and
parameter values in the menu system.
AUTO STEP symbol used to indicate that the function is
active (symbol flashes repeatedly).
Check mark displayed when the calibrator is stable.
3.4 Connections
The instrument is designed for the following connections (cf. Fig. 1):
POS Description
d
Connection of RS232 cable
3.5 Calibrator functions - overview
The instrument’s functions are divided into hierarchical groups. See
the key diagram in Fig. 3.
3.6 Selecting the set-temperature
)
)
)
The calibrator will now work towards the new set-temperature.
Press or
flashes (the starting point is the last chosen set-temperature
even if the instrument has been turned off).
Press or to select the required temperature.
Press
return to the previous value.
to accept the change or
The current set-temperature
.
ESC
MENU
to cancel and
123943 03 9
3.7 AUTO STEP
The AUTO STEP function (cf. Fig. 4) is used to step automatically
between a range of different set-temperatures.
AUTO
. The instrument displays the number of set-
STEP
.
)
Press
temperature
)
)
)
)
)
)
)
Press or to select the required number of steps.
Press
will flash.
Press or to select the required temperature.
Press
temperature will flash. This process will be repeated until the
last value has been accepted. The extra
wish the calibrator to remain at every step will flash.
Press or to set the required number of minutes.
Press
activated.
Press after the last set-temperature to end the function
ESC
or to leave the function at any time.
MENU
to accept your selection. The first set-temperature
to accept your selection. The next set-
for which you
to accept your selection. The function will be
10 123943 03
3.8 MENU
The MENU function (cf. Fig. 5) is used to modify the SETUP
parameters.
ESC
)
)
)
Hold down
will appear on the display.
Press
Press or to toggle between the SETUP
parameters:
MENU
for approx. 2 seconds. The word
. The first SETUP parameter will be displayed.
: Temperature unit °C or °F.
well is stable before the check mark
symbol is displayed.
decimal.
)
)
)
)
Press
change. The current value will flash.
Press or to select the required value.
Press to accept your selection or
return to the previous value.
Once you have changed all SETUP parameters as required,
cancel the function by pressing
: The highest permissible temperature for
the calibrator.
: Extra time which must elapse once the
: Temperature resolution of 0 or 1
to select the SETUP parameter you wish to
ESC
to cancel and
MENU
ESC
twice.
MENU
123943 03 11
4.0 After use
ETC-125 A only.
The following routine must be observed before the insertion tube is
removed and the instrument turned off (cf. Fig. 1) :
1. If the calibrator has been heated up to temperatures above
2. If the calibrator has reached a temperature below 0°C/32°F,
3. Turn off the calibrator using the power control switch (pos.
4. Remove the insertion tube from the calibrator using the tool
Caution – Hot surface
• Do not touch the well, the insertion tube or the grid
plate - they may be very hot.
• Do not touch the tip of the sensor when it is removed
from the insertion tube/well – it may be very hot.
Warning……
• Never leave hot insertion tubes which have been
removed from the calibrator unsupervised – they may
constitute a fire hazard.
Caution…
• The insertion tube must always be removed from the
calibrator after use.
The humidity in the air may cause verdigris to form on
the insertion tube inside the instrument. There is a risk
that the insertion tube may become stuck if this is
allowed to happen.
100°C/212°F, you must wait until the instrument reaches a
temperature below 100°C/212°F before you switch it off.
it should be heated momentarily to a temperature of
50°C/122°F.
4).
supplied with the instrument.
12 123943 03
Reference manual
Temperature Calibrator
JOFRA ETC-125 A / 400 A / 400 R
Copyright 2005 AMETEK DENMARK A/S (123943-UK)
123943 03 3
List of contents
Introduction ..............................................................................4
1.0
2.0 Safety instructions ...................................................................6
3.0 Setting up the calibrator ..........................................................8
3.1 Receipt of the calibrator................................................................ 8
3.2 Preparing the calibrator .............................................................. 10
3.3 Choice of insertion tube / correct bore in well. .......................... 11
3.4 Inserting the sensor .................................................................... 13
4.0 Operating the calibrator.........................................................14
4.1 Keyboard, display and connections............................................ 14
4.2 Starting the calibrator.................................................................. 17
4.3 Selecting the set-temperature .................................................... 17
4.4 Using the AUTO STEP ............................................................... 19
4.5 Using the MENU ......................................................................... 22
4.5.1 Adjusting the temperature unit ....................................... 23
4.5.2 Adjusting the max-temperature ...................................... 24
4.5.3 Adjusting the extra stability time..................................... 24
4.5.4 Adjusting the temperature resolution ............................. 25
4.6 Calibrating IR-thermometers (ETC-400 R only) ......................... 26
4.7 Simulation/training ...................................................................... 29
5.0 Storing and transporting the calibrator ...............................30
6.0 Errors.......................................................................................33
7.0 Returning the calibrator for service .....................................35
8.0 Maintenance............................................................................37
8.1 Cleaning...................................................................................... 37
8.2 Adjusting and calibrating the instrument..................................... 38
8.2.1 Adjusting the calibration date ......................................... 40
8.2.2 Calibrating/adjusting the instrument............................... 41
8.2.3 Calibrating/adjusting the ETC-400 R.............................. 45
9.0 Technical specifications........................................................46
10.0 List of accessories.................................................................52
1.0 Introduction
Congratulations on your new Ametek Jofra ETC
Calibrator!
With the Ametek Jofra calibrator, you have chosen an extremely
effective instrument which we hope will live up to all your
expectations. Over the past many years, we have acquired extensive
knowledge of industrial temperature calibration. This expertise is
reflected in our products which are all designed for daily use in an
industrial environment. Please note that we would be very interested
in hearing from you if you have any ideas or suggestions for changes
to our products.
This reference manual applies to the following instruments:
• Jofra ETC-125 A
• Jofra ETC-400 A
• Jofra ETC-400 R
ISO-9001 certified
)
4 123943 03
Ametek Denmark A/S was awarded the
ISO-9001 certificate in September 1994 by
BVQI - Bureau Veritas Quality International.
) CE-label
Your new calibrator bears the CE label and
conforms to the EMC directive and the Lowvoltage Directive.
) Technical assistance
Please contact the dealer from whom you acquired the
instrument if you require technical assistance.
) Guarantee
According to current terms of sale and delivery.
This guarantee only covers defects in manufacture and becomes
void if the instrument has been subject to unauthorised
intervention and/or misuse.
123943 03 5
2.0 Safety instructions
Read this manual carefully before using
the instrument!
Please follow the instructions and procedures described in
this manual. They are designed to allow you to get the
most out of your calibrator and avoid any personal injuries
and/or damage to the instrument.
Warning
• The calibrator must not be used for any purposes
other than those described in this manual.
• The calibrator is designed for interior use only and
should not be used in risk-prone areas, where
vapour or gas leaks, etc. may constitute an explosives
hazard. Neither should the calibrator be operated in an
excessively dusty or dirty environment.
• Avoid knocking, bumping or dropping the instrument.
This can cause permanent damage to the instrument
and loss of accuracy.
• Do not operate this instrument without a properly
grounded power cord.
• Do not use this instrument for any application other
than calibration work.
• The calibration instruments should only be used by
TRAINED PERSONNEL.
6 123943 03
Caution – Hot surface
This symbol is engraved in the well of the ETC-400 A and in
the grid plate of the ETC-125 A / 400 R.
• Do not touch the well, the insertion tube, the grid plate
or the target unit – they may be very hot.
Note…
The product liability only applies if the instrument is subject
to a manufacturing defect. This liability becomes void if the
user fails to follow the maintenance instructions set out in
this manual or uses unauthorised spare parts.
123943 03 7
3.0 Setting up the calibrator
3.1 Receipt of the calibrator
When you receive the instrument…
• Carefully unpack and check the calibrator and the accessories.
• Check the parts off against the list shown below.
If any of the parts are missing or damaged, please contact the
dealer who sold the calibrator.
You should receive:
• 1 calibrator
• 1 mains power cable
• 1 insertion tube (ETC-125 A only)
• 1 tool for insertion tube (ETC-125 A only)
• 1 traceable calibration certificate
Calibration Certificate
Calibration Equipment
xxxxxxxxxxxx
Calibration Traceability
xxxxxxxxxxxx
xxxxxxxxxxxx
Calibration Conditions
xxxxxxxxxxxx
xxxxxxxxxxxx
xxxxxxxxxxxx
Calibration Results
xxxx
xxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
Calibration Procedure
xxxxxxxxxxxx
xxxxxxxxxxxx
xxxx xxxx xxxx xxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
CALIBRATION INSTRUMENTS
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
xxxxxx
8 123943 03
• 1 user- and reference manual
User/reference
manual
• 1 RS 232 serial cable
• 1 shoulder strap
• 1 CD-ROM containing the software package
“JOFRACAL”
• 1 CD-ROM containing JOFRA IR-LAB
calibration software (ETC-400 R only)
• 1 correction table for emissivity
(ETC-400 R only)
When reordering, please specify the parts number found
in the list of accessories, section 10.0.
123943 03 9
3.2 Preparing the calibrator
Warning
• The calibrator must not be used in areas prone to
explosives hazards.
• The calibrator must be kept clear within an area of 20
cm on all sides and 1 metre above the calibrator.
Note…
The instrument must not be exposed to draughts.
Especially the temperature of the target unit surface on the
ETC-400 R might be affected by this.
6
5
115 V
3
4
1
2
Fig. 1
10 123943 03
When setting up the calibrator, you must…(see fig. 1)
c
Place the calibrator on an even horizontal surface in the spot
you intend to use it.
Caution…
d
e
f
g
The calibrator is now ready for use.
Section 3.3 and 3.4 are for ETC-125 / 400 A only
Do not use the instrument if the ventilator is out of order.
Ensure a free supply of air to the ventilator.
Check that the voltage shown on the label above the power
control switch is identical to the mains voltage (ETC-400 A/R
only). If not, the instrument should be returned to Ametek
Denmark A/S or the distributor for replacement.
Check that the earth connection for the instrument is present
and attach the cable.
Select an insertion tube with the correct bore diameter and
place it in the largest bore of the instrument (ETC-125 A only)
or use one of the bores in the well that best suits your needs.
See section 3.3 for information on how to select the insertion
tube/ correct bore in the well.
3.3 Choice of insertion tube / correct bore in
well.
Insertion tubes are only available for the ETC-125 A.
An insertion tube is selected on the basis of the diameter of the
sensor to be calibrated. You may choose between an 8 mm / 5/16
inch insertion tube, an 3/8 inch insertion tube or alternatively, you
may order an undrilled insertion tube and drill the required hole
yourself. The finished dimension should be as follows:
• Sensor diameter +0.2
123943 03 11
+0.05/-0 mm.
A bore is selected on the basis of the diameter of the sensor to be
A
.
calibrated. The sensor can now be inserted directly into the bore of
the well. See Fig. 2 for various design combinations.
The various design combinations to choose from.
3/8 in.
Fig. 2
2mm
4mm
3mm
4mm
6 mm
Metric - ETC-400 A
1/4 in.
1/16 in.
1/8 in.
3/16 in.
Imperial - ETC-400 A
1/16 in.
3/16 in.
Imperial - ETC-400
8mm
5/16 in.
12.5mm
1/2 in.
ETC-125 A
1/4 in.
6mm
1/4 in.
1/8 in.
5/32 in
4mm
5/32 in.
12 123943 03
3.4 Inserting the sensor
Before inserting the sensor and switching on the calibrator, please
note the following important warning:
Insert the sensor as shown in Fig. 1, pos. 6.
Warning
• Never use heat transfer fluids such as silicone, oil,
paste, etc.
These fluids may penetrate the calibrator and cause
damage or create poisonous fumes.
Caution…
• The well and the insertion tube must be clean before
use.
• Scratches and other damage to the insertion tube
should be avoided by storing the insertion tube carefully
when not in use.
• The insertion tube must never be forced into the well.
The well could be damaged as a result, and the
insertion tube may get stuck.
• Do not touch the well, the insertion tube or the grid
plate as the calibrator is heating up – they may be very
hot.
• Do not touch the tip of the sensor when it is removed
from the insertion tube/well – it may be very hot.
123943 03 13
4.0 Operating the calibrator
4.1 Keyboard, display and connections
Keyboard
C
min
ETC
C
F
F
6
Fig. 3
Pos. Description
1
CALIBRATION INSTRUMENTS
2
AUTO
STEP
ESC
MENU
3
4
5
c
d
e
f
g
h
14 123943 03
LCD.
AUTO STEP button used to activate AUTO STEP.
The function is used to switch between a series of settemperatures automatically.
ESC/MENU button used as Escape key or to activate the
menu system (hold button down for min. 2 seconds).
DOWN ARROW button used to adjust temperature values
(value decreases) and to select menu options.
UP ARROW button used to adjust temperature values
(value increases) and to select menu options.
ENTER button used to accept chosen options.
Display
Fig. 4
Pos. Description
1
2
9
8
C
F
F
C
min
3
4
7
6
5
c
d
e
f
g
h
i
j
k
123943 03 15
CHECKMARK displayed when the calibrator is stable.
AUTO STEP symbol used to indicate that the function is
active (symbol flashes repeatedly).
Used to display set-temperatures, time-until-stable and
parameter values in the menu system.
Minute time unit for bottom display.
Celsius temperature unit for bottom display.
Fahrenheit temperature unit for bottom display.
Fahrenheit temperature unit for top display.
Celsius temperature unit for top display.
Used to display Read-temperature and parameters in the
menu system.
Connections
All connections are located on the back of the instrument.
2
3
115 V
1
Fig. 5
Pos. Description
c
d
e
Power control switch with connection for cable and on/off
switch.
Connection for RS232 cable.
Voltage label.
It is very important that the voltage shown on the label is
identical to the mains voltage.
16 123943 03
C
4.2 Starting the calibrator
)
Switch the calibrator on using the power control switch (Fig.
5, pos. 1).
The instrument is initialised and the last calibration date is
displayed:
The calibration date will be displayed for approx. 2 seconds.
The initialisation process has been completed and the
calibrator is ready for use.
All settings are stored when the calibrator is switched off.
When the instrument is switched back on again, the status
will be the same as when it was switched off.
4.3 Selecting the set-temperature
)
Press or
to adjust the set-temperature.
The current selection flashes in the bottom display:
°
°C
The starting point is the last chosen set-temperature (even if
the instrument has been switched off).
)
Press
to accept the change or
ESC
MENU
to cancel.
The calibrator will now heat up/cool down.
123943 03 17
The top display continuously shows the read-temperature.
C
The bottom display shows either the set-temperature or the
estimated time in whole minutes until the calibrator will be
stable:
°
min
When the calibrator is stable the display will show the
checkmark symbol. The instrument will emit an audible alarm
and the estimated time until stable will be replaced by the
set-temperature:
°C
°C
18 123943 03
4.4 Using the AUTO STEP
AUTO STEP is used to step automatically between a range of
different calibration temperatures. This is useful when calibrating
sensors in places which are hard to reach, and when calibrating
sensors for which the output is displayed in a different location.
The function can be illustrated using the following example:
Fig. 6
AUTO
.
)
The
)
Press
the function is active.
The function can be cancelled at any time by pressing
STEP
symbol for AUTO STEP flashes to indicate that
ESC
MENU
123943 03 19
)
Press or to select the required number of steps
(minimum 2 steps, maximum 9 steps):
)
Press
to accept your selection.
)
)
Repeat the above procedure for all temperature steps.
)
)
Press or to select the required set-temperature
for step 1:
°C
Press to accept your selection.
Press
the last temperature step.
Press or to set the amount of extra time you
wish the calibrator to remain at every step:
to accept your choices once you have adjusted
min
)
20 123943 03
Press
to accept your selection.
The following will be displayed for one second to indicate that the
calibrator is ready to work towards the set-temperature:
°C
The calibrator will now work towards the given set-temperature. An
audible alarm will be emitted once the calibrator is stable.
The calibrator will wait the specified amount of extra time. The
instrument indicates this by counting down the amount of time
remaining:
The calibrator will then go to the next step. The procedure is the
same as for the first step. This process will be repeated until the last
step has been executed and the function has been completed.
°C
min
123943 03 21
4.5 Using the MENU
ESC
MENU
)
Hold down
for more than approx. 2 seconds:
)
)
Press
Press or to switch between the adjustable
parameters:
to select SETUP.
⇑⇓
⇑⇓
⇑⇓
22 123943 03
C
F
)
)
If you wish to exit SETUP, simply press
The instrument will ignore all changes if you press
when adjusting any of the parameters.
) Press to adjust the parameter.
4.5.1 Adjusting the temperature unit
ESC
MENU
.
ESC
MENU
)
- and
)
Press or to switch between °C and °F:
Press
°
°
to accept your selection.
123943 03 23
4.5.2 Adjusting the max-temperature
)
If the current set-temperature is higher than the new max-
)
)
Press or to set the max-temperature in steps
of 0.1°C or 0.1°F:
°C
temperature, you will need to adjust the set-temperature.
The instrument will immediately begin to cool (if required) as
soon as the new max-temperature is accepted.
Press
If you wish to exit SETUP, simply press
to accept your selection.
ESC
MENU
.
4.5.3 Adjusting the extra stability time
The extra stability time is the amount of extra time you wish to elapse
before the checkmark symbol
stabilised.
is displayed after the calibrator has
)
)
Press or
0 and 20 minutes:
Press
to accept your selection.
to set the time to anywhere between
min
24 123943 03
4.5.4 Adjusting the temperature resolution
)
- and
)
Press
decimals:
Press
or to select the required number of
°C
°C
to accept your selection.
123943 03 25
4.6 Calibrating IR-thermometers (ETC-400 R
only)
Warning
• Do never allow any foreign material to come in
contact with the target unit surface, as the emission
factor of the target unit might change.
• Do not touch the target unit surface and the grid
plate – they may be very hot.
)
Press or
to select the required test-
temperature.
°C
°C
The starting point is the last chosen test-temperature (even if
the instrument has been switched off).
ESC
MENU
to cancel.
)
Press
to accept the change or
The calibrator will now heat up/cool down.
The top display continuously shows the read-temperature.
The bottom display shows that the calibrator is working
towards the given test-temperature.
26 123943 03
When the calibrator is stable, the display will show the
checkmark symbol. The instrument will emit an audible alarm
and the calibrator is now ready for use.
°C
°C
Select the emission factor of the target unit on the IR
thermometer to be calibrated. If your IR-thermometer has a
fixed emissivity setting, use the IRLAB software to calculate
corrections.
Point the IR thermometer perpendicular towards the target
unit surface.
It is very important that the thermometer is held close to the
target unit surface.
Fig. 7
123943 03 27
Ensure the thermometer’s “field of vision” is centred and contained
within the surface area of the target unit. See fig. 7.
If the calibration is not carried out as described, the result of the
calibration will not be accurate.
Caution…
Avoid contact to the target unit surface with the
thermometer during operation, as the thermometer accuracy
will be affected and the thermometer may overheat or be
damaged. Recommended operating distance is between 2,5
– 5 cm / 1 – 2”.
28 123943 03
4.7 Simulation/training
)
The instrument will then revert to the standard display.
The calibrator’s simulation mode is used to train personnel in the use
of the instrument, etc. The simulation setting differs from the standard
setting as follows:
• The instrument will not actually heat up or cool down the well.
• The heating and cooling processes are simulated at around 10
The calibrator will remain in simulation mode until it is switched off.
Hold down the and buttons while you switch
on the calibrator.
The instrument will display the following screen:
times the normal speed of these operations.
AUTO
STEP
123943 03 29
5.0 Storing and transporting the calibrator
Switch off the calibrator using the power control switch.
Note that the calibration procedure may be interrupted at any time
using the power control switch. Switching off the calibrator during the
calibration process will not damage either the instrument or the
sensor.
Caution…
The following guidelines should always be observed when
storing and transporting the calibrator. This will ensure that
the instrument and the sensor remain in good working
order.
Tool for insertion tube
Hole for tool for insertion tube
Insertion tube
Fig. 8
30 123943 03
ETC-125 A only.
The following routine must be observed before the insertion tube is
removed and the instrument switched off:
Over 100°C/212°F
If the calibrator has been heated up to temperatures above
100°C/212°F, you must wait until the instrument reaches a
temperature below 100°C/212°F before you switch it off.
Below 0°C/32°F
If the calibrator has reached a temperature below 0°C/32°F,
ice crystals may form on the insertion tube and the well.
This, in turn, may cause verdigris to form on the material.
To prevent this from happening, simply heat up the
calibrator to 50°C/122°F.
Remove the insertion tube from the calibrator using the tool for
insertion tube supplied with the instrument as shown in Fig. 8.
Caution…
• The insertion tube must always be removed from the
calibrator after use.
The humidity in the air may cause verdigris to form on the
insertion tube inside the instrument. There is a risk that
the insertion tube may become stuck if this is allowed to
happen.
• The insertion tube must be removed to avoid damage to
the instrument if the calibrator is to be transported long
distances.
• Never leave hot insertion tubes which have been
removed from the calibrator unsupervised – unauthorized
personnel might pick up insertion tubes causing severe
burns.
123943 03 31
ETC-400 R only
When the ETC-400 R is not in use, it is advisable to store the
calibrator in the carrying case.
Caution…
• You must ensure that the instrument has cooled down to
a temperature below 100°C/212°F before placing it in the
carrying case.
32 123943 03
6.0 Errors
If the calibrator detects an error during operation, the instrument will
terminate all functions and display an error code:
Likely cause: Defective RTD-sensor or excessively high
temperature measured by the instrument’s internal
sensor.
Warning
The calibrator must be switched off before any attempt to
service the instrument is made.
Note…
Ametek Denmark’s liability ceases if:
• parts are replaced/repaired using spare parts which are
not identical to those recommended by the manufacturer.
• non-original parts are used in any way when operating
the instrument.
Ametek Denmark’s liability is restricted to errors which
originated from the factory.
Solution: The calibrator should be returned to the
manufacturer for service.
Likely cause: The calibration coefficients have not been accepted.
Solution: Try again. If the error message returns, the
calibrator should be returned to the manufacturer
for service.
123943 03 33
Likely cause: An error has occurred in the control circuit.
Solution: The calibrator should be returned to the
manufacturer for service.
Nothing happens when the power control switch (on/off switch)
is pressed.
Likely cause: There is no power to the calibrator.
Solution: Check that the calibrator is correctly connected.
If there are no problems with the mains cable, the
calibrator should be returned to the manufacturer for
service.
34 123943 03
7.0 Returning the calibrator for service
When returning the calibrator to the manufacturer for service, please
enclose a fully completed service information form. Simply copy the
form on the following page and fill in the required information.
The calibrator should be returned in the original packing.
123943 03 35
Service info
Customer data: Date:
Customer name and address:___________________________________________
Attention and Dept.:___________________________________________________
Fax no./Phone no.:____________________________________________________
Your order no.:_______________________________________________________
Delivery address:_____________________________________________________
Distributor name:_____________________________________________________
Instrument data:
Model and Serial no.:__________________________________________________
Warranty claimed Yes:____ No:_____ Original invoice no.:_________________
___________________________________________________________________
Temp. Service request: This instrument is sent for
calibration (please tick off):
___ Calibration as left ___ Check
___ Calibration as found and as left ___ Service
___ Accredited calibration as left ___ Repair
___ Accredited calibration as found and as left.
___________________________________________________________________
Diagnosis data/cause for return:
Diagnosis/Fault description:_____________________________________________
___________________________________________________________________
Special requests:_____________________________________________________
___________________________________________________________________
Safety precautions: if the product has been exposed to any hazardous substances, it must be
thoroughly decontaminated before it is returned to Ametek. Details of the hazardous substances
and any precautions to be taken must be enclosed.
36 123943 03
8.0 Maintenance
8.1 Cleaning
Users should/must carry out the following cleaning procedures as and
when required:
• The exterior of the instrument - Clean using water and a soft
• The insertion tube (ETC-125 A only) - Must always be clean
• The well - Must always be clean. Dust and textile fibres should
Caution…
Before cleaning the calibrator, you must switch it off, allow
it to cool down and remove all cables.
cloth.
The cloth should be wrung out hard to avoid any water
penetrating the calibrator and causing damage.
The keyboard may be cleaned using isopropyl alcohol when
heavily soiled.
and should be regularly wiped using a soft, dry cloth.
You must ensure there are no textile fibres on the insertion tube
when it is inserted in the well. The fibres may adhere to the well
and damage it.
be removed from the well using e.g. compressed air.
REMEMBER! Wear goggles when using compressed air!
• The target unit surface (ETC-400 R only) - Must always be
clean. Dust and textile fibres should carefully be blown from the
surface with clean air. Do not use fluid to clean the target unit
surface.
If it is impossible to clean the surface with clean air only the
target unit could alternatively be heated up to max. temperature.
The dust and fibres will then be burned off the surface. There is,
however, the risk that the dust and fibres could permanently burn
into the surface, altering the emission factor.
123943 03 37
8.2 Adjusting and calibrating the instrument
You are advised to return the calibrator to Ametek Denmark A/S or an
accredited laboratory at least once a year for calibration and
adjustment.
Alternatively, you can calibrate/adjust the calibrator yourself. You will
need a reference thermometer and a reference sensor with a
traceable calibration certificate. Please follow the instructions given
below.
Connect the calibrator to an external precision instrument (e.g. a DTI)
as shown in Fig. 9:
DTI
Sensor
Fig. 9
ESC
)
Hold down the button while pressing the on/off power
control switch.
MENU
The instrument is now in adjustment/service mode.
38 123943 03
)
Press or to toggle between the different
options:
⇑⇓
⇑⇓
⇑⇓
)
To exit the adjustment/service mode, switch the instrument
123943 03 39
Press
off and on again using the power control switch.
to accept your selection.
8.2.1 Adjusting the calibration date
Adjust the date by toggling through the available days, months and
years. Begin by selecting the required day as shown below:
)
)
)
)
Press
interval 1-31.
Press
Press
JAN / FEB / MAR / APR / MAY / JUN / JUL / AUG / SEP /
OCT / NOV / DEC.
Press
or
to accept your selection.
or
to accept your selection.
to select the required day in the
to select the required month from
)
40 123943 03
Press
2025.
or
to select a year between 2002–
)
Press
adjusted if necessary to ensure the legality of the date.
Finally, the day, month and year will flash:
to accept your selection. The day will be
)
or
)
Press
press
to accept the date.
ESC
MENU
to cancel the whole selection.
8.2.2 Calibrating/adjusting the instrument
The internal calibration/adjustment is a complex function which is
divided into a number of different steps:
The instrument will disclose the first calibration temperature by
displaying the text “TEMP.1 XXX°C” for approx. 1 second:
Calibration temperature for calibrators:
ETC-125 A 1. -8°C / 17.6°F
2. 0°C / 32°F
3. 50°C / 122°F
4. 100°C / 212°F
5. 125°C / 257°F
123943 03 41
ETC-400 A / R 1. 50°C / 122°F
2. 100°C / 212°F
3. 200°C / 392°F
4. 300°C / 572°F
5. 400°C / 752°F
The instrument will now heat up/cool down to reach the first
calibration temperature:
°C
°C
)
Once the calibrator is stable, you need to enter the reference
temperature found using the reference thermometer. The
calibration temperature is suggested as a reference point:
°C
This procedure is repeated for TEMP.2, TEMP.3, TEMP.4 and
TEMP.5.
All five calibration temperatures and associated reference
temperatures have now been entered.
The instrument will now check whether the reference temperatures
which have been entered are within the permitted tolerances.
Permitted tolerances:
• ETC-125 A / 400 A / 400 R : ±0,2°C / 0.36°F
42 123943 03
If the calibrator is found to be within the permitted tolerances, the
instrument will display the text =OK at the top of the display. The text
Cont. will flash in the bottom of the display to indicate that you may
continue without adjustments:
If the instrument detects excessive deviations for one or more steps,
it will show a screen reading =ERR. in the top of the display. The text
AdJ. will flash in the bottom of the display to indicate that an
adjustment is required. Accept by pressing .
ESC
)
)
)
)
Press
Press
to repeat an adjustment step when it is shown on the display.
Press
display.
Press
to cancel the adjustment function.
MENU
to go back to a previous screen and press
to toggle between AdJ. and Cont. on the
when AdJ. is flashing to calculate a new set of
coefficients. Next, repeat the entire calibration/adjustment
procedure.
123943 03 43
If the new coefficients deviate by more than 4% from the
standard values, the instrument will display an ERROR 2 in
the display. The calculated coefficients will be ignored:
)
)
Press
procedure.
Press
calibration/adjustment procedure and enter a new calibration
date (see section 8.2.1).
to repeat the entire calibration/adjustment
when Cont. is flashing to end the
44 123943 03
8.2.3 Calibrating/adjusting the ETC-400 R
In order to calibrate the inner thermometer of the calibrator, a 3 mm
insertion hole for the reference sensor has been drilled 1 mm beneath
the target unit surface. See fig. 10.
Insertion hole for
the reference sensor
Fig. 10
For the calibration it is recommendable to use the RTD reference
sensor 65-Pt100-150 SPEC. which AMETEK DENMARK A/S has
developed specifically for this instrument.
In principle any sensor fitting the insertion hole is useable, however,
there is the risk of incorrect temperature reading due to the limited
insertion depth of the reference sensor hole.
123943 03 45
9.0 Technical specifications
The illustration below shows the setup which forms the basis for the
technical specifications. In this case an ETC-400 A.
Fig. 11
Pos. Description
3
2
1
c
d
e
46 123943 03
Calibrator
ø4 mm Pt 100 sensor with traceable certificate (ETC125/400 A)
ø3mm Pt 100 sensor with traceable certificate (ETC-400 R)
DTI 1000 reference precision thermometer with traceable
certificate
Thermal specifications
All specifications are given with an ambient temperature of 23°C/73.4°F ±
3°C/5.4°F.
1
Measured at the bottom of the well with a 4 mm sensor
2
Specified at 115V / 230V
Specifications Model
ETC-125 A
Max. temperature : 125°C / 257°F
Min. temperature : -18°C / -0.4°F @ ambient temperature 0°C / 32°F
-10°C / 14°F@ ambient temperature 23°C / 73.4°F
6°C / 42.8°F @ ambient temperature 40°C / 104°F
Well specifications :
0.30°C / 0.54°F @ -10°C / 14°F
0.85°C / 1.53°F @ 125°C / 257°F
40 mm / 1.57 in. axial homogeneity :
60 mm / 2.36 in. axial homogeneity :
0.30°C / 0.54°F @ -10°C / 14°F
0.85°C / 1.53°F @ 125°C / 257°F
Difference between borings :
0.40°C / 0.72°F
Influence from load :
0.10°C / 0.18°F @ -10°C / 14°F
0.20°C / 0.36°F @ 125°C / 257°F
Display resolution : 1° or 0.1°C / 1.8° or 0.18°F
Stability : ±0.05°C / ±0.09°F
Accuracy
Heating time
23 to 100°C / 73 to 212°F : 11 min.
100 to 125°C / 212 to 257°F : 7 min.
1
: ±0.5°C / ±0.9°F
2
: -10 to 23°C / 14 to 73°F : 3 min.
123943 03 47
ETC-125 A
Time to stability: 3 minutes
Cooling time :
100 to 0°C / 212 to 32°F : 17 min.
0 to -10°C / 32 to 14°F : 14 min.
125 to 100°C / 257 to 212°F : 1 min.
ETC-400 A
Max. temperature : 400°C / 752°F
Min. temperature : 5°C / 41°F @ ambient temperature 0°C / 32°F
28°C /82.4°F@ ambient temperature 23°C/ 73.4°F
45°C / 113°F @ ambient temperature 40°C /104°F
Well specifications :
0.85°C / 1.53°F @ 180°C / 356°F
1.00°C / 1.8°F @ 400°C / 752°F
50 mm / 1.97 in. axial homogeneity :
0.85°C / 1.53°F @ 180°C / 356°F
1.00°C / 1.8°F @ 400°C / 752°F
40 mm / 1.57 in. axial homogeneity :
Difference between borings :
0.40°C / 0.72°F
Influence from load :
0.30°C / 0.54°F @ 400°C / 752°F
Display resolution : 1° or 0.1°C / 1.8° or 0.18°F
Stability : ±0.15°C / ±0.27°F
Accuracy
Heating time
200 to 400°C / 392 to 752°F : 3 min.
1
: ±0.5°C / ±0.9°F
2
: 28 to 200°C / 82 to 392°F : 2 min.
Time to stability: 3 minutes
Cooling time :
200 to 50°C / 392 to 122°F : 15 min.
400 to 200°C / 752 to 392°F : 6 min.
48 123943 03
ETC-400 R
Max. temperature : 400°C / 752°F
Min. temperature : 5°C / 41°F @ ambient temperature 0°C / 32°F
28°C /82.4°F@ ambient temperature 23°C/ 73.4°F
45°C / 113°F @ ambient temperature 40°C /104°F
Display resolution : 1° or 0.1°C / 1.8° or 0.18°F
Stability : ±0.3°C / ±0.54°F
Accuracy :
±0.5°C / ±0.9°F
Accuracy incl.
emissivity : ±0.4% rdg. ±1°C / ±0.4% rdg. ±1.8°F
2
Heating time
200 to 400°C / 392 to 752°F : 3 min.
: 28 to 200°C / 82 to 392°F : 2 min.
Time to stability: 3 minutes
Cooling time :
200 to 50°C / 392 to 122°F : 24 min.
400 to 200°C / 752 to 392°F : 9 min.
Emissivity : 0.96
123943 03 49
Electrical specifications
Specifications Model
ETC-125 A
Power supply [VAC]: Multivoltage 115VAC and 230VAC, 47-63Hz
115 V (90-132) and 230 V (180-264)
Power
consumption (max.): 75 VA
ETC-400 A / R
Power supply [VAC],
115VAC, 45-65Hz : 90-127
230VAC, 45-65Hz : 180-254
Power
consumption (max.):
350 W
Mechanical specifications
Specifications Model
ETC-125 A
Weight : 1.75 kg. / 3.86 lb.
Dimensions
LxWxH : 172 x 72 x 182 mm / 6.8 x 2.8 x 7.2 inch
Operating temp. : 0 to 40°C / 32 to 104°F
Storage temp. :
Humidity range :
0 to 90% RH
Protection class :
IP10
50 123943 03
-20 to 50°C / -4 to 122°F
ETC-400 A / R
Weight : 1.58 kg. / 3.5 lb. (ETC-400 A)
1.7 kg. / 3.7 lb. (ETC-400 R)
Dimensions
LxWxH : 172 x 72 x 182 mm / 6.8 x 2.8 x 7.2 inch
Operating temp. : 0 to 40°C / 32 to 104°F
Storage temp. :
-20 to 50°C / -4 to 122°F
Humidity range :
0 to 90% RH
Protection class :
IP10
Additional data - directives observed
EMC directives 89/336 / EEC
EN61326:1997/corr:2000/A1:2001/A2:2001: Electrical equipment for
measurement, control and laboratory use – EMC requirements
Low-voltage Directive 73/23 / EEC
EN61010-1:2001: Safety requirements for electrical equipment for
measurement, control and laboratory use, part 1: general requirement
123943 03 51
10.0 List of accessories
All parts listed in the list of accessories can be obtained from the
factory through our dealers.
Please contact your dealer for assistance if you require parts which
do not appear on the list.
List of accessories
Accessories Parts no.
User and reference manual 123943
Tool for insertion tube (ETC-125 A only) 60F172
Aluminium carrying case 124094
Mains cable, 115V, US, type B 60F135
Mains cable, 240V, UK, type C 60F136
Mains cable, 220V, South Africa, type D 60F137
Mains cable, 220V, Italy, type E 60F138
Mains cable, 240V, Australia, type F 60F139
Mains cable, 230V, Europe, type A 60F140
Mains cable, 230V, Denmark, type G 60F141
Mains cable, 220V, Switzerland, type H 60F142
Mains cable, 230V, Israel, type I 60F143
RS232 serial cable 2 m 123958
5 x undrilled insertion tubes for ETC-125 A 123939
8 mm / 5/16 inch insertion tube for ETC-125 A 123938
3/8 inch insertion tube for ETC-125 A 124045
Shoulder strap with snap hooks 124004
JOFRACAL PC software 124915
JOFRA IR-LAB calibration software for ETC-400 R 124591
Correction table for emissivity for ETC-400 R 124592
Pt100 sensor ø3mm x 150mm for ETC-400 R 65-PT100-150 SPEC
52 123943 03
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