Ametek Jofra ETC-125 A User manual

Reference manual
Temperature Calibrator
Jofra ETC-125 A / 400 A / 400 R

User- and Reference manual
Temperature Calibrator
JOFRA ETC-125 A / 400 A / 400 R
Copyright 2005 AMETEK Denmark A/S (123943-UK)

123943 08 2019-04-12
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
Conditions and actions that may compromise the
safe use of the instrument and result in
considerable personal injury or material damage.
Caution…
Conditions and actions that may compromise the
safe use of the instrument and result in slight
personal or material damage.
Note…
Special situations which demand the user’s
attention.

2019-04-12 123943 08
List of contents
................................................. User manual, English
........................................Reference manual, English

User manual
Temperature Calibrator
JOFRA ETC-125 A / 400 A / 400 R
Copyright 2005 AMETEK DENMARK A/S (123943-UK)

2019-04-12
ON
115 V
1
5
3 4
2
FIG. 1

2019-04-12
CALIBRATION INSTRUMENTS
ETC
C
F
CF
min
C
F
CF
min
1
2
3
4
5
6
7
8
9
10
11
1213
14
FIG. 2
AUTO
STEP
ESC
MENU

2019-04-12
°C
°C
AUTO
STEP
ESC
MENU
ESC
MENU
FIG. 3

2019-04-12
FIG. 4
AUTO
STEP
AUTO
STEP

2019-04-12
FIG. 5
ESC
MENU ESC
MENU
ESC
MENU
ESC
MENU ESC
MENU ESC
MENU ESC
MENU

123943 08 1
List of contents
1.0 Introduction..................................................................... 2
2.0 Safety instructions ......................................................... 3
3.0 Operating the calibrator................................................. 7
3.1 Before use.........................................................................7
3.2 Keyboard......................................................................... 10
3.3 Display ............................................................................ 10
3.4 Connections .................................................................... 11
3.5 Calibrator functions - overview......................................... 11
3.6 Selecting the set-temperature.......................................... 11
3.7 AUTO STEP.................................................................... 12
3.8 MENU.............................................................................. 13
4.0 After use........................................................................ 14
4.1 Switching off the calibrator............................................... 15

2 123943 08
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.

123943 08 3
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, as it might cause a
hazard.
•The calibrator has been designed for indoor use only
and is not to be used in wet locations.
•The calibrator is not to be used in hazardous areas,
where vapour or gas leaks, etc. may constitute a
danger of explosion.
•The calibrator is not designed for operation in altitudes
above 2000 meters.
•The calibrator is a CLASS I product and must be
connected to a mains outlet with a protective earth
connection. Ensure the ground connection of the
calibrator is properly connected to the protective earth
before switching on the calibrator. Always use a mains
power cable with a mains plug that connects to the
protective earth.

4 123943 08
•To ensure the connection to protective earth any
extension cord used must also have a protective earth
conductor.
•Only use a mains power cord with a current rating as
specified by the calibrator and which is approved for the
voltage and plug configuration in your area.
•Before switching on the calibrator make sure that it is
set to the voltage of the mains electricity supply.
•Always position the calibrator to enable easy and quick
disconnection of the power source (mains inlet socket).
•The calibrator must be kept clear within an area of 20
cm on all sides and 1 metre above the calibrator due to
fire hazard.
•Never use heat transfer fluids such as silicone, oil,
paste, etc. in the calibrators. These fluids may
penetrate the calibrator and cause electrical hazard,
damage or create poisonous fumes.
•The calibrator must be switched off before any attempt
to service the instrument is made. There are no user
serviceable parts inside the calibrator.
•When cleaning the well or insertion tube, REMEMBER
to wear goggles when using compressed air!
About the insertion tubes and well:
•Never leave hot insertion tubes which have been
removed from the calibrator unsupervised – they may
constitute a fire hazard or personal injury.
•If you intend to store the calibrator in the optional
aluminium carrying case after use, you must ensure that
the instrument has cooled down to a temperature below
100°C/212°F before placing it in the carrying case.
•Never place a hot insertion tube in the optional carrying
case.

123943 08 5
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 and cause burns.
•Do not touch the tip of the sensor when it is removed
from the insertion tube/well – it may be very hot and
cause burns.
•Over 50°C/122°F
If the calibrator has been heated up to temperatures
above 50°C/122°F, you must wait until the instrument
reaches a temperature below 50°C/122°F before you
switch it off.
•Do not remove the insert from the calibrator before the
insert has cooled down to less than 50°C/122°F.
Caution – Cold surface
Below 0°C/32°F (applies only to the ETC-125 A models)
•Do not touch the well or insertion tube when these are
below 0°C/32°F - they might create frostbite.
•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 the material
surfaces to oxidize
To prevent this from happening, simply heat up the
calibrator to 100°C/212°F until all water left has
evaporated.
It is very important that humidity in the well and insertion
tube is removed to prevent corrosion and frost
expansion damages.

6 123943 08
Caution…
About the use:
•Do not use the instrument if the fan is out of order.
•Before cleaning the calibrator, you must switch it off,
allow it to cool down and remove all cables.
About the well, insertion tube and grid plate:
•The well and the insertion tube must be clean before
use.
•Do not pour any form of liquids into the well. It might
damage the well or cause a hazard.
•Scratches and other damage to the insertion tubes
should be avoided by storing the insertion tubes
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.
•The insertion tube must always be removed from the
calibrator after use.
The humidity in the air may cause corrosion oxidation
on the insertion tube inside the instrument. There is a
risk that the insertion tube may get 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 08 7
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, as it might cause a
hazard.
•The calibrator has been designed for indoor use only
and is not to be used in wet locations.
•The calibrator is not to be used in hazardous areas,
where vapour or gas leaks, etc. may constitute a
danger of explosion.
•The calibrator is not designed for operation in altitudes
above 2000 meters.
•The calibrator is a CLASS I product and must be
connected to a mains outlet with a protective earth
connection. Ensure the ground connection of the
calibrator is properly connected to the protective earth
before switching on the calibrator. Always use a mains
power cable with a mains plug that connects to the
protective earth.
•To ensure the connection to protective earth any
extension cord used must also have a protective earth
conductor.
•Only use a mains power cord with a current rating as
specified by the calibrator and which is approved for the
voltage and plug configuration in your area.
•Before switching on the calibrator make sure that it is
set to the voltage of the mains electricity supply.
•Always position the calibrator to enable easy and quick
disconnection of the power source (mains inlet socket).
•The calibrator must be kept clear within an area of 20
cm on all sides and 1 metre above the calibrator due to
fire hazard.

8 123943 08
•Never use heat transfer fluids such as silicone, oil,
paste, etc. in the calibrators. These fluids may
penetrate the calibrator and cause electrical hazard,
damage or create poisonous fumes.
Caution – Hot surface
•Do not touch the grid plate, the well or the insertion
tube as the calibrator is heating up – they may be very
hot and cause burns.
•Do not touch the handle of the calibrator during use – it
may be very hot and cause burns.