®
-
Digi
THERMOCOUPLE THERMOMETER
Dual J-T-E-
MODEL NO. 60010-40
Sense
®
K
®
Digi
Eutech Instruments Pte Ltd
Blk 55 Ayer Rajah Crescent
#04-16 Singapore 139949
Website: www.eutechinst.com
email: marketing@eutechinst.com
68X309907 Rev.1 12/03
-
Sense
Tel: (65) 6778 6876
Fax: (65) 6773 0836
INTRODUCTION
This versatile hand-held instrument provides highly
accurate temperature measurements in Celsius, or
Fahrenheit, using a wide range of ther mocouple
types. The temper ature range f or each type thermocouple is listed in the follo wing chart.
TYPE °C °F
J –200 to 1000 –328 to 1832
K –250 to 1372 –418 to 2501
T –250 to 400 –418 to 752
E –250 to 1000 –418 to 1832
1
The instrument is designed for easy operation and
includes the follo wing features:
•Operator selection of temperature scale
•Resolution of 0.1° from −150°C to 999.9°C
(−238°F to 999.9°F)
•LCD with three four-digit displa ys
• Two (2-blade f emale) ANSI mini-connector inputs
•Hold feature f or temporarily retaining a reading
•Two-point field calibration capability
•Low battery warning
•Stores up to 25 readings
•Scrolls through all stored readings
•Displays MIN and MAX readings
•Scrolls between T1, T2, and T1-T2 readings
•Built-in tilt stand for easy hands-free operation
2
SAFETY PRECAUTIONS
WARNING
LOW LEVEL SIGNALS SUPPLIED BY STANDARD THERMOCOUPLES. UNDER NO CIRCUMSTANCES SHOULD THE INPUT VOLTAGE
EXCEED THE SPECIFIED 50V RMS.
CAUTION
MICROWAVE OVENS OR ANY ABNORMALLY
HOT OR COLD AREAS .
CAUTION
STR UMENT . DEAD BATTERIES CAN LEAK AND
CA USE D AMAGE T O UNIT.
DANGER
MA Y ALSO BE PRESENT AT THE BA TTER Y TERMINALS. AL W A YS DISCONNECT THE THERMOCOUPLE WHEN CHANGING BATTERIES.
THIS INSTRUMENT IS
DESIGNED TO ACCEPT
DO NOT USE OR STORE
THIS INSTRUMENT IN
WEAK BA TTERIES SHOULD
NOT BE LEFT IN THE IN-
VOLTAGES PRESENT AT
THE THERMOCOUPLES
WARNING
PHERE, BATTERIES MUST ONL Y BE CHANGED
IN AN AREA KNO WN T O BE NON-HAZARDOUS.
AVERTISSEMENT
D’ATMOSPHERES DANGEREUSES, NE
CHANGER LES BATTERIES QUE DANS DES
EMPLACEMENTS DESIGNES NON DANGEREUX.
WARNING
PHERE BY ELECTROSTATIC DISCHARGE,
CLEAN WITH DAMP CLOTH.
TO PREVENT IGNITION OF
A HAZARDOUS ATMOS-
AFIN DE PREVENIR
L’INFLAMMATION
TO PREVENT IGNITION OF
A HAZARDOUS ATMOS-
3
SPECIFICATIONS
THERMOCOUPLE PROBES
T ype T emperature Range
Type J: –200°C to 1000°C (–328°F to 1832°F )
Type K: –250°C to 1372°C (–418°F to 2501°F )
Type T : –250°C to 400°C (–418°F to 752°F )
Type E: –250°C to 1000°C (–418°F to 1832°F )
Accuracy > –150°C: ±0.1% of reading, ±0.4°C
(±0.7°F)
Accuracy < –150°C: ±0.25% of reading, ±1°C
(±2°F)
Linearization: Conforms to NIST monograph 175
revised to ITS-90.
Input Protection: 50V rms
Conversion Rate: Reading 0.6 seconds per
update.
Connector: T wo-b lade female ANSI mini-connector
inputs.
Battery
Size: Two AA, 1.5V alkaline ANSI-L40,
IEC-LR6
Life: 750 hours continuous, typical
Display: LCD with 0.4 in high characters main
readout and 0.2 in high characters secondary
displays, 4 digits each display plus v arious annunciators.
4
T emperature/Humidity Range
Operating:
Stated Accuracy: 18°C to 28°C
(64°F to 82°F)
Useful Range: 0°C to 40°C
(32°F to 104°F)
Storage: −40°C to 65°C
(−40°F to 149°F)
Humidity: 10% to 90%
(non-condensing)
Dimensions
3 cm D x 8.4 cm W x 15.8 cm H
(1.2 in x 3.3 in x 6.2 in)
Weight with batteries: 227 g rams (8 ounces)
Ingress protection: Meets IEC-529 IP-54 f or dust
and water-resistant enclosures.
Intrinsic safety
This product is energy limited for intrinsically safe
operation in h ydrogen atmospheres per Class I,
Division 1, Groups A, B, C, and D hazardous
(classified) locations for UL per UL913 and CSA
per C22.2 No. 0-M1982 and No. 157-M1987.
Maximum surface temperature: 135°C (T4); UL
file No. E182612 (1997).
Compliance (For CE Mark)
EN61326-1/A1: 1998 (EU EMC Directiv e)
5
BATTERY INSTALLATION AND
REPLACEMENT
CAUTION
INSTRUMENT. DEAD BATTERIES CAN LEAK
AND CA USE DAMAGE TO UNIT.
DANGER
MAY ALSO BE PRESENT A T THE BATTER Y TERMINALS. AL W A YS DISCONNECT THE THERMOCOUPLE WHEN CHANGING BATTERIES.
WARNING
PHERE, BATTERIES MUST ONLY BE CHANGED
IN AN AREA KNO WN T O BE NON-HAZARDOUS.
AVERTISSEMENT
D’ATMOSPHERES DANGEREUSES, NE
CHANGER LES BATTERIES QUE DANS DES
EMPLACEMENTS DESIGNES NON DANGEREUX.
WEAK BATTERIES SHOULD
NOT BE LEFT IN THE
VOLTAGES PRESENT AT
THE THERMOCOUPLES
TO PREVENT IGNITION OF
A HAZARDOUS ATMOS-
AFIN DE PREVENIR
L’INFLAMMATION
6
If battery indicator turns on, battery life is approximately 8 to 10 hours. The battery indicator will start
blinking with less than 1 hour of life remaining.
AT THIS POINT BATTER Y MUST BE CHANGED .
IF BATTERY VOLTAGE GOES TOO LOW, DISPLAY WILL GO BLANK.
See SPECIFICATIONS for battery type.
1. Before changing battery , turn instrument off and
disconnect thermocouple(s).
2. Loosen screw and lift battery cover off back of
case.
3. Remov e the two AA batteries.
4. Insert two new batteries observing polarity .
5. Install cov er and tighten screw .
7
CONNECTING A THERMOCOUPLE
Note: Be sure your instrument setting (J, T, E or K)
matches the thermocouple you are using.
Use the correct thermocouple type f or your instru-
ment. Using an incorrect ther mocouple type will
result in erroneous readings. Thermocouples are
color coded by type using the North American ANSI
color code as follows:
TYPE COLOR
J Black
K Yellow
T Blue
E Purple
Thermocouple connectors have one wide blade and
one narrow blade.
wards.
Connect thermocouple(s) to receptacle at
Do not force connector in bac k-
top of instrument.
If only one thermocouple is being used, it can be
connected to either T1 or T2. The thermometer will
automatically determine which connector is being
used. When tw o thermocouples are used, connect
one to the T1 connector and one to the T2
connector .
Thermocouple wiring polarity must be correct. If
readings decrease as the temperature increases,
the thermocouple wires may be reversed. The red
wire is negative f or thermocouple wires manufactured in North America.
8
9
10
11
QUICK SETUP
Note: Review w arnings on page 6.
1. Install batteries.
2. Connect thermocouple(s).
3. Press the ON/OFF ke y. The thermometer performs a self-test and all displa y digits and indicators, as shown below, should remain on for
approximately one second.
4. Use J-T-E-K key to select the correct thermo-
couple and the °C/°F key to select the desired
scale.
If a thermocouple has not yet been connected to
one or more inputs on the instrument, you will see
this display:
This message also appears if a thermocouple is
broken. No measurements can be made while this
warning is displayed.
12
COMPLETE SETUP PROCEDURE
The setup procedure is used to select the temperature scale, resolution, and thermocouple type.
NOTE
Selected settings are stored in memory and will
remain in memory even after power is turned off,
or while batteries are being replaced.
SELECTING TEMPERATURE SCALE
Select °C or °F by pressing the °C/ °F ke y. Each
time the key is pressed the temper ature scale will
switch. Switching between °C and °F can be done
at any time during operation.
Each time you turn the instrument on, it will power
up with the same settings that were set when the
unit was last turned off.
SELECTING RESOLUTION
Select 0.1° or 1° resolution by pressing the
0.1°/1° key. This k ey toggles between the two resolutions. When measuring temperature abov e 999.9°
or below −150°C the thermometer automatically
autoranges to 1° resolution.
SELECTING THERMOCOUPLE TYPE
Select the thermocouple type, either J, T, E, K, by
pressing the J-T-E-K key. Each push of the key
will step to the next type thermocouple. The selected thermocouple type is indicated by the annunciators in the lower right corner of the display.
Continue with the OPERATING PROCEDURES
section or turn the instrument OFF by pressing the
ON/OFF ke y again. The displa y will b lank.
13
OPERATING PROCEDURES
The unit will always power up with the upper display showing T1 unless T1 is not connected. If
only T2 is connected at power up, the upper display sho ws T2 and the lo wer left display indicates
T1 is open. If thermocouples are not connected to
T1 or T2 at power up, the upper display indicates
an open T1 and the lower right display indicates an
open T2.
If you are in single probe mode and the probe is
mov ed to the other connector or to restore the dual
probe mode, turn power OFF then back ON.
F or optimum operation, allow about one minute for
ambient temperature stabilization. If the unit has
been stored at an extreme ambient condition, more
time may be needed.
BASIC TEMPERATURE MEASUREMENTS
Check that the thermometer is turned on, the
probe(s) connected, the desired resolution 0.1° or
1° is selected, and the desired scale °C or °F, is
selected.
Single Probe Measurements
The thermometer will automatically determine if T1
or T2 connection is being used.
Initially the upper display will indicate the measured
temperature and the annunciator will indicate which
probe is making the measurement. One of the lower
displa ys will indicate open and the annunciator will
indicate which probe is open. Pressing the T1/T2
ke y will cause the thermometer to go into the single
probe differential mode described later .
Temperatures > 999.9° have a resolution of 1° and
therefore no decimal will be present.
14
Dual Probe Measurements
The thermometer will automatically determine if one
or two thermocouples are connected. When two
thermocouples are connected, the upper main display will initially show T1 and the lower right display will sho w T2. Pressing the T1/T2 k ey once will
cause the upper display to sho w T2 and the lowe r
left display to show T1. Pressing the
T1/T2 key again will cause the upper display to
show T1-T2, the lower left displa y to show T1, and
the lower right display to sho w T2.
MAXIMUM READINGS
The maximum reading function displa ys the maximum reading since power up or since the last time
the clear function was used. The maximum reading function is ideal for monitoring unattended operations while continually displa ying eve ry temperature change that occurs. The maximum and minimum v alues are sensed and automatically stored
until you are ready to observe the reading.
Do not turn the instrument OFF when a maximum
or minimum temperature value may be needed;
MAX/MIN memory contents will be lost. Factory
Calibration will be maintained.
15
Single Probe Measurements
The display ed information depends on whether you
are using a single probe in the dual probe mode or
hav e changed to the single probe differential mode
by pressing the T1/T2 key .
If you are using a single probe and in the dual probe
mode, momentarily press the MAX
▲▲
▲ key. The
▲▲
MAX annunciator turns on. If the probe is connected
to T1 the maximum reading will be shown in the
lower left display. If the probe is connected to T2
the maximum reading will be shown in the lower
right display. If a higher maximum occurs while in
the MAX mode, the higher reading will be displa yed.
To turn off the maximum reading, press the MAX
▲▲
▲ key again.
▲▲
If you are in the single probe differential mode,
momentarily press the MAX
▲▲
▲ ke y. The MAX and
▲▲
MIN annunciators turn on and both the maximum
and minimum readings appear in the lower displa ys.
The minimum will be on the left display and the
maximum on the right display. If a higher maximum
or lower minimum occurs while in the MAX mode ,
the higher reading will be display ed. T o turn off the
maximum reading, press the MAX
▲▲
▲ key again.
▲▲
16
Dual Probe Measurements
Momentarily press the MAX
▲▲
▲ ke y. The MAX an-
▲▲
nunciator turns on, and both maximum T1 and T2
readings appear in the lower displa y. The T1 reading is on the left display and the T2 reading is on
the right display. Press MAX
▲▲
▲ key again to cancel.
▲▲
Clearing a Maximum Reading
Press the CLEAR key then the MAX
▲▲
▲ key. The
▲▲
maximum memory will be cleared.
MINIMUM READINGS
The minimum reading function displays the minimum reading since power up or since the last time
the clear function was used. While continually displaying e very temperature change that occurs, the
maximum and minimum values are sensed and
automatically stored until you are ready to observe
the reading.
Do not turn the instrument OFF when a maximum
or minimum temperature value may be needed;
MAX/MIN memory contents will be lost.
17
Single Probe Measurements
The display ed information depends on whether you
are using a single probe in the dual probe mode or
hav e changed to the single probe differential mode
by pressing the T1/T2 key .
If you are using a single probe and in the dual probe
mode, momentarily press the MIN
▼▼
▼ ke y . The MIN
▼▼
annunciator turns on. If the probe is connected to
T1 the minimum reading will be shown in the lo wer
left display. If the probe is connected to T2 the minimum reading will be shown in the lower right display. If a lower minimum occurs while in the MIN
mode, the low er reading will be display ed. To turn
off the minimum reading, press the MIN
▼▼
▼ key
▼▼
again.
If you are in the single probe differential mode,
momentarily press the MIN
▼▼
▼ key. The MAX and
▼▼
MIN annunciator turns on and both the maximum
and minimum readings appear in the lower displa ys.
The minimum will be on the left display and the
maximum on the right display. If a lo wer minimum
or higher maximum occurs while in the MIN mode ,
the new readings will be displa yed. To turn off the
minimum reading, press the MIN
▼▼
▼ key again.
▼▼
Dual Probe Measurements
Momentarily press the MIN
▼▼
▼ key. The MIN an-
▼▼
nunciator turns on, and both minimum T1 and T2
readings appear in the lower displa y. The T1 reading is on the left display and the T2 reading is on
the right display. Press the MIN
▼▼
▼ key again to
▼▼
cancel.
Clearing a Minimum Reading
Press the CLEAR ke y then press the MIN
▼▼
▼ key.
▼▼
The minimum memory will be cleared.
18
DIFFERENTIAL READINGS (T1-T2)
The differential function is used to compare two
different measurements and displa y the difference
between them. Diff erential measurements can be
made using either one probe or two probes.
Single Probe Measurements
For single probe measurements , one measurement
is stored as the reference measurement, then each
following measurement is compared to the reference. The reference measurement is viewed on
the lower left displa y , the diff erential value is shown
in the lower right display and the main displa y shows
the present T1 or T2 reading.
1. Place probe at first measurement point.
2. Press the T1/T2 key to store this ref erence temperature. The ∆T and M= ann unciators will be
on and the reference temperature will be displayed on the lower left display. The ∆T indicates that the differential mode is selected and
the M= indicates that a reference temperature
has been stored. Any time after this that the T1/
T2 ke y is pressed, the M= value will be updated
to the present value shown in the main displa y.
3. Place the probe at the second measurement
point. The main display will immediately show
the new measured temperature and the lower
right display will immediately show the diff erence
between the reference temperature and the
present temperature point.
19
Dual Probe Measurement
1. Connect the two probes to the two points of
measurement. The lo wer left display will indicate
the T1 temperature, the lower right display will
indicate the T2 temperature.
2. The main display can be scrolled between displa ying T1, T2 or the differential temperature T1T2 by repeatedly pressing the T1/T2 k ey . T o display the diff erential temperature press the T1/T2
key until the T1-T2 annunciator to the right of
the main display is on.
HOLD FUNCTION
Press the HOLD
the display. Press HOLD
key to retain the reading on
key again for normal
operation.
Maximum/Minim um Hold Readings
Press the MAX
▲▲
▲ key, then press the HOLD
▲▲
key. To turn off the HOLD function and return to
normal operation, press the HOLD key again.
To clear the maximum readings, press the CLEAR
ke y, then the MAX
▲▲
▲ key .
▲▲
Minimum/Hold
Press the MIN
▼▼
▼ key , then press the HOLD
▼▼
key.
To turn off the HOLD function and return to normal
operation press the HOLD
ke y again.
To clear the minimum readings, press the CLEAR
ke y, then the MIN
STORED READINGS
The store function allows you to store up to 25 readings. Both T1 and T2 readings are stored. To store
readings proceed as follo ws:
▼▼
▼ key.
▼▼
20
1. Momentarily press the STORE k ey . Both T1 and
T2 are stored. The upper main displa y will momentarily show the storage location number and
the STO ann unciator will be on.
After three seconds the storage number will be replaced with the temperature reading but the STO
annunciator remains on to indicate a temperature
reading has been stored. The STORE key ma y be
pressed as fast as once per second.
2. Repeat step 1 for all the points to be recorded
up to a maximum of 25. Each time the STORE
key is pressed the new reading will be stored
and the upper main display will show the storage location number f or about 3 seconds. After
25 stored readings, the next time the STORE
key is pressed the main display will indicate
FULL.
RECALL READINGS
This function allows the stored readings to be recalled. RECALL shows each stored reading individually. To recall readings proceed as follows:
1. Momentarily press the RECALL key, the first
stored reading will be display ed on the lower display and the store number “1” will be displayed
on the upper display. The STO, and RCL annunciators will be on.
2. To step through the readings, press the
MIN
▼▼
▼ key or the MAX
▼▼
▲▲
▲ key. Each press of
▲▲
the key will advance to the next reading in sequence.
3. To retur n to normal operation press any other
key except ON/OFF, MAX
CALL.
Clearing Stored Readings
Press the CLEAR key, then the STORE key. The
stored readings in memory will be cleared.
21
▲▲
▲, MIN
▲▲
▼▼
▼ or RE-
▼▼
CALIBRATION
The calibration function allo ws both single point and
dual point calibration of the thermometer. Single
point calibrates the offset only. Dual point calibrates
the offset first then calibrates the slope. The thermometer can be calibrated at any temperature.
When two probes are used, a match calibration
matches the T1 and T2 offsets.
It is not necessary to perform a field calibration to
obtain specified accuracies. Use the calibration
feature to impro ve thermometer/probe accuracy or
to compensate for thermocouple probe calibration
drift.
The thermometer has a memory retention capability to hold calibration values even while power is
off or the battery is removed.
When you restart, there is no need to recalibrate.
Each of the four thermocouple types ma y be individually calibrated and stored.
NOTE
The temperature at which water boils (100°C/
212°F) is at sea level and standard atmospheric
pressure using distilled water . Changes in altitude
and barometric pressure will cause the boiling temperature to change.
As a general rule, the boiling temperature of water
will decrease 1°C (1.8°F) f or every 1000 feet abov e
sea lev el. For e xample, at an elev ation of 5300 feet
(1600 meters), water will boil at approximately
94.7°C (202.5°F).
Other liquids may also be used as calibration stan-
dards. Consult a chemical handbook f or their freezing (melting) point and boiling point properties.
22
When calibrating at freezing (0°C or 32°F) it is recommended to use crushed ice made of distilled
water in a dewar flask. Add crushed ice to top of
flask. T op off flask with distilled w ater. Continue to
add crushed ice to maintain tightly packed crushed
ice/water in flask.
CALIBRA TION PR OCEDURES
Calibration Procedure (One Pr obe Detected)
This calibration function provides f or both an offset
and slope field calibration of either T1 or T2. If only
one probe is detected, the procedure applies to that
probe, and the main displa y will indicate T1 or T2
as applicable. For proper calibration the f ollowing
conditions must be observed:
• The slope point must be a higher temperature than
the offset point.
•The difference must be at least 20°C .
•Use two points based on the e xpected high and
low temperatures. Temperatures measured outside of these limits may no longer meet accuracy
specifications.
Proceed as follo ws to calibrate the probes.
1. Place the probe at the lower known reference
temperature.
2. Offset Calibration: Momentarily press the CAL
ke y to enter the calibration mode, the CAL annunciator will flash. The temperature is displayed
on the main display and Lo is displayed on the
lower left display. “Lo” signifies that this is the
offset point.
23
3. Allow the reading to stabilize. If the displayed
temperature is higher or lower than the ref erence
temperature, use the MAX
the display ed reading or the MIN
▲▲
▲ key to increase
▲▲
▼▼
▼ key to de-
▼▼
crease the display ed reading until the reference
temperature is display ed. The MIN
▼▼
▼ or MAX
▼▼
▲▲
▲
▲▲
key must be pressed at least once. The CAL
annunciator should be blinking during this
procedure.
4. Press the HOLD
key to lock the offset calibration in and advance to the slope calibration.
To return to normal operation press any k ey except CAL or HOLD
.
5. Slope Calibration: Place the probe at the higher
reference temperature .
6. Allow the reading to stabilize. If the displayed
temperature is higher or lower than the ref erence
temperature, use the MAX
the displayed reading or the MIN
▲▲
▲ key to increase
▲▲
▼▼
▼ key to de-
▼▼
crease the display ed reading until the reference
temperature is displa yed. The MIN
▼▼
▼ or MAX
▼▼
key must be pressed at least once. The CAL
annunciator should be blinking during this procedure.
7. Press the HOLD
key to lock the calibration
in.
▲▲
▲
▲▲
24
Calibration Procedure
(T wo Pr obes Detected)
This calibration function provides f or both an offset
and slope field calibration of either or both T1 and
T2. For proper calibration the f ollowing conditions
must be observed:
• The slope point must be a higher temperature than
the offset point.
•The difference must be at least 20°C .
•Use two points based on the e xpected high and
low temperatures. Temperatures measured outside of these limits may no longer meet accuracy
specifications.
Proceed as follo ws to calibrate the probes.
1. Place the probe at the lower known reference
temperature.
2. Offset Calibration: Momentarily press the CAL
ke y to enter the calibration mode, the CAL annunciator will flash. The temperature is displayed
on the main display and Lo is displayed on the
lower left display. “Lo” signifies that this is the
offset point.
3. Allow the reading to stabilize. If the displayed
temperature is higher or lower than the ref erence
temperature, use the MAX
the displayed reading or the MIN
▲▲
▲ key to increase
▲▲
▼▼
▼ key to de-
▼▼
crease the display ed reading until the reference
temperature is displa yed. The MIN
▼▼
▼ or MAX
▼▼
▲▲
▲
▲▲
key must be pressed at least once. The CAL
annunciator should be blinking during this
procedure.
4. Press the HOLD ke y to loc k the T1 calibration in and advance to T2 offset calibration, or
press the CAL k ey to skip T1 calibr ation. In either
case you will now be in T2 offset calibration.
25
5. Allow the reading to stabilize . If the displa y ed
temperature is higher or lower than the reference temperature, use the MAX
▲▲
▲ key to in-
▲▲
crease the displayed reading or the
MIN
▼▼
▼ key to decrease the displa yed reading
▼▼
until the reference temperature is displayed.
The MIN
▼▼
▼ or MAX
▼▼
▲▲
▲ key must be pressed
▲▲
at least once. The CAL annunciator should
remain blinking during this procedure.
6. Press the HOLD
key to lock the T2 offset
calibration in, or press the CAL ke y to skip T2
offset calibration and proceed with T1 slope.
If T1 or T2 offset calibration is skipped, then the
slope calibration f or that input will also be skipped.
7. Slope Calibration: Place the probe(s) at the
higher reference temperature .
8. The temperature is display ed on the main display and "Hi" is displa yed on the lo wer left display.
9. Allow the reading to stabilize . If the displa y ed
temperature is higher or lower than the reference temperature, use the MAX
▲▲
▲ key to
▲▲
increase the displayed reading or the
MIN
▼▼
▼ key to decrease the displa yed reading
▼▼
until the reference temperature is displayed.
The MIN
▼▼
▼ or MAX
▼▼
▲▲
▲ key must be pressed
▲▲
at least once. The CAL annunciator should
remain blinking during this procedure.
10. Press the HOLD
key to lock the T1 slope
calibration in and adv ance to T2 slope calibr ation, or press the CAL key to skip T1 slope
calibration. In either case you will now be in T2
slope calibration.
26
11. Press the HOLD
key to lock the T2 slope
calibration in, or press the CAL ke y to skip T2
slope calibration. In either case you will now
be in T1 = T2 offset calibration. To retur n to
normal operation press any key except CAL
key or HOLD key.
If either T1 or T2 offset or slope w ere modified, CAL
1 or 2 will be lit.
12. The MATCH annunciator should be blinking.
When both readings (T1 and T2) are stable,
press the HOLD
key to lock the T1 = T2
offset calibration in. The MATCH annunciator
will remain lit.
13. This completes the two-point calibration.
14. To retur n to normal operation press any key
except ON/OFF k e y or the CAL key.
Matching T1 and T2 Procedure
This procedure requires both probes to be at the
same temperature.
1. Place both probes at the same temperature and
let stabilize.
2. Momentarily press the CAL key until the MATCH
annunciator is blinking. When both readings (T1
and T2) are stable, press the HOLD
lock in the calibration.
Clearing an Individual Cal P oint: Press CAL key
until the desired point is displayed, then press
CLEAR key.
Clearing all Cal Points: Press CLEAR key, then
CALkey. Unit rev erts to factory calibration with no
offset or slope compensation.
key to
27
FIELD CALIBRA TION LOCK OUT
AND RE-ENABLE
The calibration lock out f eature , pre v ents an y field
calibration changes. The loc kout remains in eff ect
until a lock out re-enable has been performed. Use
the follo wing procedures to lockout or re-enable the
field calibration operation.
Lock out Procedure
1. T urn the thermometer off.
2. Simultaneously press and hold the CAL and the
CLEAR ke ys down and momentarily press the
ON/OFF key. Continue to hold the CAL and
CLEAR ke ys f or at least 5 seconds.
Re-Enable Pr ocedure
1. T urn the thermometer off.
2. Simultaneously press and hold the HOLD
the CAL keys down and momentarily press the
ON/OFFk ey . Continue to hold the HOLD
CAL keys until the displa y b lanks.
and
and
28
MAINTENANCE AND
TROUBLESHOOTING
Properly used, the thermometer should maintain
calibration indefinitely and not require service other
than occasional cleaning of the housing and changing of the batteries.
TO PREVENT IGNITION OF
WARNING
PHERE BY ELECTROSTATIC DISCHARGE,
CLEAN WITH DAMP CLOTH.
Do not clean with abrasives or solv ents . Use mild
detergents, ne ver immerse nor use excessiv e fluid.
BATTERIES
If there is no display when the thermometer is
A HAZARDOUS ATMOS-
turned on, check condition of the two AA batteries.
Also check that the battery terminals are clean and
batteries are properly installed. If replacement is
necessary , ref er to the BATTERY INSTALLATION
AND REPLACEMENT section for replacement
procedure.
All stored readings are retained until cleared, ev en
if the batteries are removed for long periods.
29
SERVICE
WARNING
SUBSTITUTION OF COMPONENTS MAY IMPAIR
INTRINSIC SAFETY.
AVERTISSEMENT
LA SUBSTITUTION DE
COMPOSANTS PEUT COM-
PROMETTRE LA SECURITE INTRINSEQUE.
There are no internal adjustments or user replaceable parts.
Note: Serial number label is located inside battery
compartment.
30
TROUBLESHOOTING
The following chart lists the most probable faults .
There are no internal adjustments or user-replaceable parts. If this does not solve the prob lem, refer
service to your dealer.
FAULT ACTION
No display when Check condition of
turned on. batteries.
Check that batteries are
inserted properly.
Display shows Out of range indication.
- - - Display shows Open thermocouple
OPEn connection.
Display shows If displa yed at any time
Err other than during field
calibration, return
instrument for service.
31
W ARRANTY
The Manufacturer warrants this product to be
free from significant deviations from published
specifications. If repair or adjustment is necessary within the warranty period, the problem will
be corrected at no charge if it is not due to misuse or abuse on your part as determined by the
Manufacturer. Repair costs outside the warranty
period, or those resulting from product misuse
or abuse, may be invoiced to you.
This product comes with a warranty of
3 years.
PRODUCT RETURN
To limit charges and delays, contact the seller or
Manufacturer for authorization and shipping instructions before returning the product, either
within or outside of the warranty period. When
returning the product, please state the reason for
the return. For your protection, pack the product
carefully and insure it against possible damage
or loss. Any damages resulting from improper
packaging are your responsibility.
TECHNICAL ASSISTANCE
If you have any questions about the use of this
product, contact the Manufacturer or authorized
seller.
Trademarks bearing the ® symbol in this publication are registered in the U.S.
and in other countries.
Rev.1
Printed in Singapore
68X309907 12/03
Loading...