Oakton Type T User manual

INSTRUCTION MANUAL
Thermocouple
Thermometer
T ype J , K, T
Part of Thermo Fisher Scientific
68X450501 Rev 0 02/08

T
A BLE OF CONTENTS
1. INTRODUCTION................................... 1
2. SAFETY PRECAUTIONS ..................... 2
3. SPECIFICATIONS ................................ 3
4. BATTERY INSTALLATION AND
REPLACEMENT .............................................. 5
5. INSERTING AND REMOVING
OPTIONAL RUBBER ARMOUR ...................... 6
6. ASSEMBLING OPTIONAL HANDSFREE
ACCESORIES
.................................................. 7
7. SELF TEST ........................................... 8
8. CONNECTING A THERMOCOUPLE... 8
9. KEY FUNCTIONS ............................... 10
10. Display Overview................................. 11
11. SELECTING TEMPERATURE SCALE12
12. HOLD FUNCTON................................ 12
13. MIN AND MAX FUNCTION ................ 13
14. AUTO OFF FUNCTION ...................... 13
15. CALIBRATION .................................... 13
16. CANCELING A FIELD CALIBRATION14
17. FIELD CALIBRATION LOCKOUT AND
RE-ENABLE
................................................... 15
18. MAINTENANCE ................................... 16
19. CLEANING .......................................... 16
20. BATTERIES ......................................... 16
21. TROUBLE SHOOTING ....................... 17
22. ACCESSORIES ................................... 18
23. WARRANTY ........................................ 19
24. PRODUCT RETURN ........................... 19
25. INNOCAL® CALIBRATION AND
REPAIR SERVICES (NORTH AMERICA) .... 20

- 1 -
1. INTRODUCTION
T
his versatile hand-held
in strument provides highly
accu rate te mperature
measurements
. T he
instrument
is designed
for
easy oper ation and
includes
the follo wing
features:
•O perator selection of Celsius or
F
ahren heit scale
• Resolu tion of 0.1° C/F from -199.9 to
999.9°
•Large backlit LCD with two lines of
four-digit display
•
Hold featur e for temporarily retaining a
reading
•
Displays min and max readings
•Field
calibra ti on capab ilit y
•
Disabling of Auto-Off function
•
Low ba tter y warning
•T
wo blade fema le A N SI mini-
conn
ector inpu t
•O
perates wi th a wide sele ction of
probes

- 2 -
2. SAFETY PRECAUTIONS
WARNING:
1. This instrument is designed to
accept low level signals supplied by
standard thermocouples. Under NO
circumstances should the input
voltage exceed the specified 50V
RMS.
2. To prevent ignition of a hazardous
atmosphere, batteries must only be
changed in an area known to be
non-hazardous.
CAUTION:
1. Do not use or store this instrument in
microwave ovens or any abnormally
hot or cold areas.
2. Weak batteries should not be left in
the instrument. Dead batteries can
leak and cause damage to unit.
DANGER:
1. Voltages present at the
thermocouple may also be present
at the battery terminals. Always
disconnect the Thermocouple when
changing batteries.

- 3 -
3. SPECIFICATIONS
Thermocouple Thermometers
Type
Temperature range
–210°C to 1200°C
Temp10J (Type J)
(–346°F to 2192°F)
–250°C to 1372°C
Temp10K (Type K)
(–418°F to 2501°F)
–250°C to 400°C
Temp10T (Type T)
(–418°F to 752°F)
Out of rangedispla y : - - - -
Reso lution
0.1°/1° auto- ranging ,
0.1° C/F from -199.9 to 999.9°,
1° C/F
ou tsi de this ran ge
Accuracy
Below -150 °C (-238 °F):
±0.25% of reading ±1 °C (±2 °F)
Above -150 °C (-238 °F):
±0.1% of reading ±0.4 °C (±0.7 °F)
Displa y
Backlit LCD of viewing area 58 X 40mm
Min/Max Function
Yes
Auto Off (after 17.5 minutes)
Enable/Disable option available
Stability Criteria
Yes, upon stability of 5 seconds

- 4 -
Display upda te rate
0.5 sec per up date.
Inpu t
O
ne thermocouple wi t h ANSI
conn ector.
Inpu t Prote ct ion
50V rms
Storage
–40°C to 65°C (–40°F to 149°F)
Humidity
10% to 90% (non-condensing)
Battery Life
Size: Three AA, 1.5V; Alkaline
Life: 750 hours continuous, typical,
(without backlighting)
Dimensions
Without Armor:
175mm (L) X 97mm (W) X 42mm (H)
With Armor:
180mm (L) X 102mm (W) X 52mm (H)
Weight with batteries
Without Armor: 267g
With Armor: 362g
Ingress protection:
Meets IEC-529 IP-54 for dust and water
resistant enclosures (probe attached)
CE Compliance
EN61326-1/A1: 1998 (EU EMC Directive)

- 5 -
4. BATTERY INSTALLATION AND
REPLACEMENT
The total battery life without
backlighting is about 750 hours. Each
bar of the battery annunciator
represents 200 hours. A blinking empty
battery annunciator indicates 150 hours
remaining.
Selecte d se ttin gs are stor ed in memory
and
will remain in memory even after
power is turned off, or while batteries
are being replac ed.
1. Before changing batter y , tur n
instrume
nt off and disconnect
thermocoupl
e.
2.
Loosen screw and lift batter y cover off
back of case.
3. Remove the t hree AA batteries.
4. Insert three
new batteri es observing
pol
arit y .
5. Install
cover and tig h ten screw .

- 6 -
5. INSERTING AND REMOVING
OPTIONAL RUBBER ARMOUR
1. To insert thermometer into the
optional rubber armor, slide in from
the top of meter before pushing the
bottom edges of meter down to set it
into position. Lift up the stand at the
back of meter for bench top
applications if necessary.
2. To remove thermometer from armor,
push out from the bottom edges of
meter until it is completely out of boot.

- 7 -
6. ASSEMBLING OPTIONAL
HANDSFREE ACCESORIES
You can use the optional magnets and
strap in the Hands Free Kit accessories for
hands-free operations.

- 8 -
7. SELF TEST
Press the on/off key. T he thermometer
performs a self-test and all display di gits
and indi cators, should remain on for
approximately one second . The
thermometer will then display the
thermocouple thermometer type and
resume to the measurement mode.
8. CONNECTING A THERMOCOUPLE
Use
the correc t thermocouple t ype for
your instrume nt. Using an incorr ect
th ermocouple ty pe will resul t in erroneous
readi ngs. T hermocouples are color coded
by t ype using th e North American ANSI
Color Code as follo w s:
TYPE COLOR
J Black
K Yello w
T Blue
T hermocouple connectors have one
wide
blade and one narrow bla de. Do
not force connector in backward s.
Con nect thermocouple to receptacle at
top of
instru ment as shown in th e
follo wing ill ustration.

- 9 -
T hermocouple wiring polari ty mu st be
correct. If readings decrease as th e
temperatur e increas es, the thermocouple
wires may be revers ed. T he red wire is
nega tive for thermocouple wires
manu factured in North Americ a.

- 10 -
9. KEY FUNCTIONS
°C/°F
Toggle between Celsius or
Fahrenheit.
cal
Activates Calibration mode for
0°C offset calibration (after
field calibration enabled).
hold
Activates/Deactivates freezing
of the measured reading while
in measurement mode.
min
max
Activates/Deactivates display
of the minimum and maximum
readings.
on/off
light
Powers on and shuts off the
thermometer by holding it for
3 seconds. Otherwise, it
activates/deactivates the
backlight display. (Backlight
will automatically turn off
within 30 seconds of
activation).

- 11 -
10. Display Overview
°C/°F Celsius or Fahrenheit indicator.
MIN Minimum reading annunciator.
MAX Maximum reading annunciator.
3 Bar : < 750 hours
2 Bar : < 550 hours
1 Bar : < 350 hours
Blinking: < 150 hours
CAL
Blinks during calibration mode.
Remains in display indicating
field calibration is active.
HOLD
Remain in display during hold
mode.
STABLE Displayed upon recognizing final
value
Err CAL
Error indicator on main digit
display Indicates calibration error
due to out of tolerance value.

- 12 -
If a thermocouple is not connected or if
the
thermocouple is de fective, the display
will indi cate “OPEn”.
T hermocouples are sensitive at the tip or
measuring junction . W hen taki ng
measurements
, allow tim e for the reading
t
o stabilize. Mu ltip lying the tim e constant
of the
probe by 5 will give you the
approx imat e time required .
11. SELECTING TEMPERATURE
SCALE
Select °C or °F by pressing the °C/°F
key . Eac h tim e the key is pressed th e
temperatur e scale will sw itch. S w itc hing
bet ween ° C and °F can be done at any
time during operatio n.
Each time you turn the in strument on, it
will power up wi t h the same setting s
th a t were set when the unit was last
turned off.
12. HOLD FUNCTON
Press the hold key to retain the reading
on the displa y. Press the hold key again
for normal ope ratio n .

- 13 -
13. MIN AND MAX FUNCTION
Press the min/max key to toggle between
the minimum and maximum readings. The
minimum and maximum reading function
is ideal for monitoring unattended
operations while continually displaying
every temperature change that occurs.
The minimum and maximum values are
sensed and automatically stored.
To exit and clear this function, press the
min/max key for 3 seconds.
14. AUTO OFF FUNCTION
The thermometer has a default auto off
function of 17.5 minutes.
To deactivate this function, press and hold
the min/max key while turning on the
meter using the on/off key.
“A.OFF nO” will appear indicating that the
auto off function is disabled.
15. CALIBRATION
T he thermometer is factor y calibra te d and
does not require calibra ti on be fore use.
T he Calibration functio n allows single poi nt
cali brati on of the th ermo meter, at 0°C
(32°F) to
compensate for thermocouple
off-set error. It is NOT necessary to
pe rform a fiel d calibra tio n to ob tai n
speci fi ed me te r accuracy . Use the fie ld
calibr ation featur e t o improve
thermometer/p robe accuracy or to

- 14 -
compensate for t hermocouple drift.
1. Pack
sensing end of probe in a
container
tig h tl y packed wi t h crushed
ice
and fill ed wi t h di still ed water.
All
ow temperatur e to stabiliz e.
2.
Press and hold the cal key for 3
seconds
to en ter the calibra ti on
mo de, the CAL annuncia tor on t he
display starts blinki ng. Release th e
cal
key .
3. If the
measured temperat ure is from
- 10°
C to 10°C (14 to 50°F ) , when th e
temperatur e reading is sta b le, press
the cal ke y.
T he CAL indi cator will sto p blinking and
th
e reading will be se t to 0°C (32°F).
T
he CAL indica tor will remain turned on,
indicating a fiel d calibra tio n is active.
If “Err CAL” is displaye d, either the
displayed reading is out side th e above
limits
or the batteries are we ak.
16. CANCELING A FIELD
CALIBRATION
1. T urn the thermometer off.
2.
Hold th e cal key down while pressing
the on/off
key .
T
he field calibra tion is cancelled and the
thermometer reverts to the defa u lt factor y
calibratio n. T he CAL annunciator is now
turned off.

- 15 -
17. FIELD CALIBRATION LOCKOUT
AND RE-ENABLE
T he calibration locko ut featur e prev ents
any fie ld cali brati on chan ges. T he locko ut
remains in e ffect unti l a locko ut re-
enable
has been performed . Use the
follo
wing procedures to lo ckout or re-
enable
the fi eld calibra tio n oper ation.
LOCKOUT PROCEDURE
1. T
urn the thermometer off.
2. Simultan eously press and hold the
cal
and the °C/°F keys down and
momentarily
press the on/off key .
Conti
nue to hold the cal and °C/°F keys
until the measurement mode is
displayed .
RE-EN
AB LE P R OCEDURE
1. Turn the thermometer off.
2. Simultan
eously press and hold the
hold
and the cal keys down and
momentarily
press the on/off key .
Conti
nue to press the hold and cal keys
unti l the measurement mode is displayed.

- 16 -
18. MAINTENANCE
Properly us ed, the th ermome ter should
maintain calibr ation in defi n itel y and not
require service other tha n occasional
cleaning
of the housing and changing of
the batteries.
19. CLEANING
WARNING:
TO PREVENT IGNITION OF A
HAZARDOUS AT M OSPHERE BY
E
L E C TROSTATI C DISCHARGE,
CLEAN WITH DAMP CLOTH.
Do not clean wi th abrasives or solven ts.
Use mild deter ge nts, never immerse nor
use excessive fluid.
20. BATTERIES
If there is no display when the
thermometer is turned on, check
cond ition of th e t h r e e AA ba tteries.
Also
check that th e batter y ter minals are
clean and batteries are properly install ed.
If replacement is necessary , refer to the
BATTERY INSTALLATION AND
REPLA
C EMENT se ction for replacemen t
proced ure.

- 17 -
21. TROUBLE SHOOTING
The following chart lists the most probable
faults. There are no internal adjustments
or user-replaceable parts.
FAULT ACTION
NO
Display
Check condition of batteries.
Check that batteries are inserted
properly.
Display
shows
- - - -
Out of range indication.
Display
Shows
OPEN
No thermocouple connected in the
Connector.
Display
Shows
Err
If display shows this message
other than during the field
calibration mode, please return the
instrument for servicing.