Ametek ETC-400 A, ETC-125 A, ETC-400 R User Manual

User- and 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

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.

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List of contents

................................................. User manual, English

........................................Reference manual, English

2013-10-23 123943 04

User manual

Temperature Calibrator

JOFRA ETC-125 A / 400 A / 400 R

FIG. 1

115 V

3 4

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FIG. 2

CALIBRATION INSTRUMENTS

AUTO STEP

ESC MENU

min

C F

ETC

min

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FIG. 3

AUTO STEP

ESC MENU

ESC

°C

2013-10-23

FIG. 4

AUTO STEP

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FIG. 5

ESC MENU

2013-10-23

ESC MENU

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

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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.

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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.

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 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.

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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.

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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.

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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

 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.

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 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.

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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…

Do not use the instrument if the fan is out of order. Ensure

a free supply of air to the fan (pos. 5).

2. Check that the voltage shown on the label above the power

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.

3. Plug in the cable below (pos. 3) the power control switch

(pos. 4) and check that the earth connection is present.

4. The selected insertion tube is inserted into the calibrator

(ETC-125 A only).

Caution…

 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.

 Do not pour any form of liquids into the well. It might

damage the well or cause a hazard.

5. Place the sensor (pos. 1, Fig. 1).

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3.2 Keyboard

The keys on the keyboard activate the following functions (cf. Fig. 2):

POS Description











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





Used to display Read-temperature and parameters in the menu system.

Celsius temperature unit for top display.







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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



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 to accept the change or to cancel and

return to the previous value.

The current set-temperature

ESC MENU

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3.7 AUTO STEP

The AUTO STEP function (cf. Fig. 4) is used to step automatically between a range of different set-temperatures.

AUTO

STEP



Press . The instrument displays the number of settemperature .



Press or to select the required number of steps.

Press to accept your selection. The first set-temperature

will flash. Press or to select the required temperature.

Press to accept your selection. The next set-

temperature will flash. This process will be repeated until the last value has been accepted. The extra for which you

wish the calibrator to remain at every step will flash. Press or to set the required number of minutes.

Press to accept your selection. The function will be activated.



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Press after the last set-temperature to end the function

ESC

or to leave the function at any time.

3.8 MENU

The MENU function (cf. Fig. 5) is used to modify the SETUP parameters.

ESC



Hold down for approx. 2 seconds. The word will appear on the display.



Press . The first SETUP parameter will be displayed.

Press or to toggle between the SETUP parameters:

: Temperature unit C or F.

: The highest permissible temperature for

the calibrator.

: Extra time which must elapse once the

well is stable before the check mark symbol is displayed.

: Temperature resolution of 0 or 1

decimal. Press to select the SETUP parameter you wish to change. The current value will flash. Press or to select the required value.



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Press to accept your selection or to cancel and

return to the previous value. Once you have changed all SETUP parameters as required, cancel the function by pressing twice.

ESC MENU

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