Ametek JOFRA DTI050 A User manual

Reference Manual
Digital Temperature Indicator
JOFRA DTI050 A/B
Copyright 2006 AMETEK Calibration Instruments

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About this manual….
• The structure of the manual
This reference manual is aimed at users who are familiar with
AMETEK indicators, 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 indicator. 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 indicator, as well as any risks involved.
Warning
Events, which may compromise the safe use of
the indicator and result in considerable personal
or material damage.
Caution…
Events, which may compromise the safe use of
the indicator and result in slight personal or
material damage.
Note…
Special situations, which demand the user’s
attention.

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List of contents
1.0 Introduction ..............................................................................5
2.0 Safety instructions ...................................................................7
3.0 Receiving the DTI050 .............................................................10
3.1 DTI050 interface ......................................................................... 12
3.2 DTI050 display ............................................................................ 14
3.2.1 Configuration modes ...................................................... 15
3.2.1.1 Setting DTI050 configurations ........................ 15
3.2.1.2 Viewing the transducer electronic datasheet
(TEDS) ............................................................ 17
4.0 Measuring temperature..........................................................20
4.1 Measuring temperature with non-intelligent sensors................. 20
4.2 Measuring temperature with intelligent sensors ........................ 22
4.3 Measuring Ohms......................................................................... 22
4.4 Measuring mV............................................................................. 22
5.0 Remote operation...................................................................23
5.1 Remote interface......................................................................... 23
5.2 Setting up the RS232 port for remote control ............................. 23
5.3 Changing between remote and local operation ......................... 24
5.4 Using commands ........................................................................ 25
5.4.1 Command types ............................................................. 25
5.4.2 Character processing ..................................................... 26
5.4.3 Response data types...................................................... 26
5.4.4 Indicator status ............................................................... 27
5.5 Remote commands and error codes .......................................... 27
5.6 Entering commands.................................................................... 30
5.6.1 Common commands ...................................................... 30
5.6.2 DTI050 commands ......................................................... 31
6.0 Programming intelligent sensors .........................................35
7.0 Adjustment procedure ...........................................................36
Pin numbering............................................................................. 36
7.1 Setting up the RS232 port for remote control ............................. 37
7.2 Adjustment .................................................................................. 38
7.2.1 Equipment ...................................................................... 38
7.2.2 Adjustment procedure .................................................... 38
7.2.2.1 Setting up for adjustment................................ 38
7.2.2.2 Adjustment 0-78 mV range ............................. 38

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7.2.2.3 Adjustment 400 ohm range............................. 39
7.2.2.4 Adjustment 4000 ohm range........................... 39
7.2.2.5 Adjustment CJC ohm range............................ 40
7.2.2.6 Adjustment 500000 ohm range....................... 40
8.0 Maintenance............................................................................41
8.1 Replacing batteries ..................................................................... 41
8.2 Cleaning the indicator ................................................................. 41
8.3 Service center calibration or repair ............................................. 42
9.0 General specifications ...........................................................44
10.0 List of accessories ................................................................51

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1.0 Introduction
Congratulations on your new AMETEK JOFRA
Digital Temperature Indicator!
With the AMETEK Jofra indicator, you have chosen an extremely
effective reference instrument, which we hope will perform according
to your expectations. During the past several 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 indicator:
• Jofra DTI050
)ISO-9001 certified
Ametek Denmark A/S was ISO-9001
certified in September 1994 by BVQI -
Bureau Veritas Quality International.

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)CE-label
Your new indicator is CE labelled and
complies with the EMC directive.
)Technical assistance
Please contact the dealer from whom you acquired the indicator
if you require technical assistance.
)Warranty
According to current terms of sale and delivery.
This warranty only covers defects in material and manufacture
and becomes void if the indicator has been subject to
unauthorised service/repair and/or misuse.
)Contacting AMETEK
US, Canada, Latin America : AMETEK TCI at 1-800-527-9999
Europe, Africa, Middle East : AMETEK Denmark A/S at
+ 45 4816 8000
Asia : AMETEK Singapore Pte. Ltd. at
+ 65 (64) 842 388
The product is manufactured by:
AMETEK DENMARK A/S
GYDEVANG 32 - 34
DK-3450 ALLERØD
DENMARK
TEL.: [phone]
FAX: [phone]

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2.0 Safety instructions
Read this manual carefully before using
the indicator!
Please follow the instructions and procedures described in
this manual. They are aimed at allowing you to make the
best of your DTI-system and avoid any personal injuries
and/or damage to the indicator.
Disposal – WEEE Directive
The indicator contains electrical and electronic circuits and
must be properly recycled or disposed of (in accordance
with the WEEE Directive 2002/96/EC).
Warning
The indicator has been designed to calibrate and measure
low voltage signals. To ensure the safety of the operator
and the indicator, DO NOT connect the indicator to input
voltages above 30 Volts.
To avoid possible electric shock or personal injury:
• The indicator must not be used for any purposes other
than those described in this manual.
• Do not operate the indicator in environments of
explosive gas, vapour, or dust.
• Do not apply more than the rated voltage. See
specifications for supported ranges.
• Select the proper function and range for your
measurement.
• Do not use the indicator if it operates abnormally.
Protection may be impaired. When in doubt, get the
indicator serviced.

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• During set-up, make sure that there is correlation
between the software set-up, and the actual sensors
connected to the DTI050.
• When servicing the indicator, only use specified
replacement parts.
• Do not use the indicator if it is damaged. Before you
use the indicator, inspect the case. Look for cracks or
missing plastic.
• Make sure the battery cover is closed before you
operate the indicator.
• To avoid false readings, which could lead to possible
personal injury, replace the battery as soon as the
battery indicator appears.
• To avoid personal injury or damage to the indicator,
use only the specified replacement parts. Do not allow
water into the case.

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Caution…
To avoid possible damage to the indicator or to the
equipment under test:
• Disconnect the power and discharge all high-voltage
capacitors before testing resistance.
• Use the proper jacks, connectors, function and range
for your measurement.
• To avoid damaging the plastic display and case, do not
use solvents or abrasive cleansers when cleaning the
indicator.
Note…
The product liability only applies if the indicator is subject
to a manufacturing defect. This liability becomes void if the
user fails to follow the maintenance instructions described
in this manual or uses unauthorised spare parts.

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3.0 Receiving the DTI050
When you receive the indicator…
• Unpack and check the indicator and the accessories carefully.
• Check the parts according to the list shown below.
If any of the parts are missing or damaged, please contact the
dealer who sold you the indicator.
You should receive:
• 1 DTI050
• 1 traceable certificate
• 1 reference manual
• 1 soft case and shoulder strap
• 1 RS 232 serial cable
• 1 9V battery
• 1 CD-ROM containing the software package
“JOFRACAL”.
RTD P100(90)385
TM
UNITS
FUNC TYPE
HOLD MAX/MIN
CONFIG ENTER
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