General DT61 Bedienungsanleitung
HEAVY-DUTY DIGITAL
THERMOCOUPLE
THERMOMETERS
USER’S MANUAL
Plea e read thi manual carefully and thoroughly before u ing thi product.
DT61
Single channel
DT62
Two channel
DT61-DT62 Ma ual_RRFINAL_EFS_111014_awb 11/10/14 12:04 PM Page 1
TABLE OF CONTENTS
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . 2 –3
What’s in the Package . . . . . . . . . . . . . . . . . . . . . . 3
Quick Start Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Overview . . . . . . . . . . . . . . . . . . . . . . . 3 –7
Setup Instructions . . . . . . . . . . . . . . . . . . . . . 7 – 11
Install Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Perform Setup Procedure . . . . . . . . . . . . . 7 – 11
Install Thermocouple(s) . . . . . . . . . . . . . . . . . 11
Operating Instructions . . . . . . . . . . . . . . . . . 12 – 13
Monitoring Temperature(s) in Real Time . 12 – 13
Displaying Min/Max/Avg Temperatures . . . . . 13
Specifications . . . . . . . . . . . . . . . . . . . . . . . 13 – 14
Operating & Maintenance Tips . . . . . . . . . . . . . . 14
Warranty Information . . . . . . . . . . . . . . . . . . . . . 15
Return for Repair Policy . . . . . . . . . . . . . . . . . . . . 16
Manuel de ’utilisateur (en Français) . . . . . 17 – 34
Manual del Usuario (en Español) . . . . . . . . 35 – 51
KEY FEATURES
• Min/Max/Avg memory
• Compatible with “K”, “J”, “T” and “E” type
thermocouples
• Displays difference between thermocouple
readings T1-T2 (DT62 only)
• 2.4 in. (61mm) diagonal LCD with dual
temperature readouts + relative time clock readout
• Adjustable relative time clock enables resetting
measurement timeline
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• Choice of three temperature units: °C, ° and °K
• Data hold button
• Manual temperature compensation (offset) for
thermocouple(s)
• Adjustable Auto Power Off trigger
• Powered by “9V” battery
• 3 year limited warranty
WHAT’S IN THE PACKAGE
Both models come in a white box with this user’s
manual. The DT61 includes one “K” type bead
thermocouple probe with a measurement range of
-40° to 572° (-40° to 300°C). The DT62 comes with
two “K” type probes with the same range.
A variety of other “K” type thermocouple probes
with different sensor types, form factors and
temperature ranges are available from General. Visit
www.generaltools.com and enter “K type probe” in
the SEARCH box.
QUICK START GUIDE
1. Obtain and install a “9V” battery.
2. Plug included “K” type thermocouple probe(s) into
the top jack(s).
3. Press the POWER button.
PRODUCT OVERVIEW
igure 1 shows all of the controls, indicators and
physical features of the DT61 and DT62, including
the differences between their keypads and jack
configurations. igure 2 shows all possible
indications on the LCD. amiliarize yourself with the
positions and functions of all controls, indicators and
physical features before moving on to the Setup
Instructions and Operating Instructions.
3
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DT61 Keypad DT62 Keypad
1. Keypad
2. T1 jack for spade lug thermocouple
3. T2 jack for spade lug thermocouple (DT62 only)
4. Ambient temperature sensor
5. LCD
6. lip-up stand (on back)
7. Battery compartment (on back)
4
T2 ++T1– –
POWER
HOLD
EENNTTEERR
SETUP
MAX
MIN
AVG
TC TYPE
C°/F°K
POWER
HOLD
EENNTTEERR
SETUP
MAX
MIN
AVG
T1/T2/T1-T2
C°/F°K
DT61
햶
햲
햸
햳
햷
햴햵
TOP
Fig. 1. The controls,
display and physical
features of the DT61
and DT62
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POWER button. Powers thermometer on and off.
TC TYPE button (DT61 only). Selects thermocouple
type (“K”, “J”, “T” or “E”)
T1/T2/T1-T2 button (DT62 only). Selects one of four
display options:
a) T1 on primary readout and T2 on secondary
readout
b) T2 on primary readout and T1 on secondary
readout
c) T1-T2 on primary readout and T1 on secondary
readout
d) T1-T2 on primary readout and T2 on secondary
readout
°C/°F/K button. Selects temperature unit of primary
and secondary readouts
MAX/AVG/MIN button. Pressed briefly, selects
whether maximum, minimum or average value of
measurement session (since thermometer was
powered on) is displayed on primary readout.
Pressed and held, exits Max/Min/Avg display mode
and resumes real-time display mode.
HO D (ENTER) button:
• On DT61, pressing HO D button briefly “freezes”
T1 value on primary readout.
• On DT62, pressing HO D briefly freezes T1, T2 or
T1-T2 value on primary readout and T1 or T2
value on secondary readout (values held are
determined by setting of T1/T2/T1-T2 button).
• On DT61 and DT62, ENTER button is only used
to set system time format.
SETUP button. Initiates 7-step setup procedure
(see p. 7)
왖and 왔buttons. On DT61 and DT62, used to
enable/disable ambient temperature compensation
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and change values of temperature compensation,
Auto Power Off triggering time, relative time clock
and local power line frequency. On DT62, also used
to select thermocouple type (during Step 1 of Setup
procedure).
Fig. 2. All possible display indications
1. Auto Power Off enabled indicator
2. Low battery icon
3. OFFSET. Indicates that primary readout is showing
thermocouple temperature compensation value
4. SETUP. lashes during setup procedure
5. READ. Not used on DT61 or DT62
6. REC. Not used on DT61 or DT62
7. HO D. Indicates that primary readout is showing
held value
8. K, °F, °C. Primary readout temperature unit
9. Primary readout
10. MAX, MIN, AVG. Indicates which value is shown
on primary readout
11. MEM. Not used on DT61 or DT62
12. K, °F, °C. Secondary readout temperature unit
13. Secondary readout
14. USB. Not used on DT61 or DT62
6
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15. Relative time clock readout
16. min:sec. Relative time units
17. CA . lashes during calibration
18. INTERVA . Not used on DT61 or DT62
19. hour:min. Relative time units
20. Type KJTERSN. Indicates selected thermocouple
type
SETUP INSTRUCTIONS
INSTALL BATTERY
To open the battery compartment, turn the
thermometer over and lift the flip-up stand ( ig. 1,
Callout 6) to gain access to the battery compartment
(Callout 7). Remove the single Philips-head screw
securing the battery compartment cover. Set the
cover and screw aside. Obtain a “9V” battery and
install it in the compartment observing the polarity
markings inside. Close the battery compartment by
replacing its cover and securing it with the screw.
PERFORM SETUP PROCEDURE
The setup procedures for the DT61 and DT62 are
identical, with one exception: Step 2—adjusting the
temperature compensation (offset) value—must be
performed twice, for the thermocouples of both
channels.
7
1. Set TC type 2. Set TC
offset
5. Set power
line
frequency
4. Set relative
time clock
6. Enable/
disable
ambient
temperature
compensation
3. Set APO
trigger
7. Enter
Calibration
mode
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To enter Setup mode, press the SETUP button once.
Doing so will clear all three readouts and cause the
word SETUP to begin flashing on the top line of the
LCD. SETUP will continue to flash until all steps of
the setup procedure have been completed.
Note: It’s important to understand that you must
complete the entire 7-step Setup procedure
shown above each time you initiate it. If you
power off the thermometer during an interim
step, none of your settings or changes will be
saved.
Step 1 of the procedure enables you to configure the
thermometer for the type of thermocouple to be
used. DT62 users: You cannot plug two different
types of thermocouple into the T1 and T2 jacks on
the top of the unit ( ig. 1, Callouts 2 and 3). You must
use two probes of the same type.
By default, the DT61 and DT62 are configured to
work with “K” type thermocouples. To use a “J”, “T”
or “E” thermocouple, press the 왖or 왔button until
the correct letter replaces Kat the right of TYPE on
the left side of the LCD.
On the DT61, you can also change the thermocouple
type by pressing the TC TYPE button repeatedly with
the thermometer in real-time measurement mode.
After you complete Step 1, press the SETUP button
again to initiate Step 2. During this step, the word
OFFSET appears on the top line of the LCD, with the
term T1 in the upper left corner.
Step 2 of the procedure enables you to set the
amount of temperature compensation (offset) to be
applied to the Channel 1 (T1) thermocouple. Pressing
the 왖button applies a positive offset, and pressing
the 왔button applies a negative offset. Each press of
either button adds 0.1°C of compensation to the
amount shown on the primary readout. The
8
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maximum amount of temperature compensation
allowable is ±6°C. You cannot apply temperature
compensation using ahrenheit or Kelvin units. After
applying the desired amount of temperature
compensation to T1, press the SETUP button again
to save your setting and proceed to the next step.
On the DT62, the next step is Step 2A—setting the
amount of temperature compensation (offset) to be
applied to the Channel 2 (T2) thermocouple. After
using the same procedure as before to apply the
desired amount of temperature compensation to T2,
press the SETUP button again to proceed to Step 3.
Note: Changing thermocouple t pe automaticall
restores offset value(s) to 0.0.
Step 3 enables you to change the triggering time of
the Auto Power Off (APO) function from its default
value of 30 minutes. During Step 3, the primary
readout shows the term P– and the secondary
readout shows the current value of the APO
triggering time (the period of time during which no
front-panel buttons are pressed).
Each press of the 왖button increases the APO
triggering time by 1 minute, and each press of the
왔button decreases it by 1 minute. The maximum
APO triggering time is 60 minutes. If the APO
triggering time has been decreased to 5 minutes, the
next press of the 왔button causes the term oFF to
appear on the secondary readout. Disabling the APO
function in this way also causes the clock icon in the
upper left corner of the LCD ( ig. 2, Callout 1) to
disappear. The missing clock icon is a reminder that
the thermometer will not automatically power itself
off after an extended period of inactivity. With APO
disabled, be aware that leaving the thermometer
unattended for an extended period of time risks
draining the battery.
9
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After adjusting the APO triggering time, press the
SETUP button again to proceed to Step 4.
Step 4 enables you to reset the relative time clock to
a time other the default value: how long it has been
since the thermometer was powered on. The usual
reason to change the value is to establish a new
“zero” for the measurement timeline following any
change that does not involve powering the
thermometer off.
At the beginning of Step 4, the term S - t appears on
the primary readout with 00:00 (hours and minutes)
showing on the relative time clock readout ( ig. 2,
Callout 15). To switch the display to show minutes
and seconds, press the HO D (ENTER) button. The
relative clock setting can be adjusted to any value
between 0 and 24 hours, with 1-second resolution.
Each press of the 왖button increases the setting
by 1 minute or 1 second, and each press of the
왔button decreases it by 1 minute or 1 second.
You can press and hold either button to make a large
change quickly.
After adjusting the relative time clock, press the
SETUP button again to proceed to Step 5.
Step 5 enables you to compensate for thermocouple
measurement errors caused by nearby power lines.
By default, the thermometer automatically
compensates for the effects of electric power
transmission and distribution at a frequency of 60Hz.
Upon entering Step 5, the thermometer shows the
term inE on the primary readout and 60H on the
secondary readout. Press either the 왖or 왔button
to change 60H to 50H if your local power grid
operates at 50Hz.
After adjusting the relative time clock, press the
SETUP button again to proceed to Step 6.
10
DT61-DT62 Ma ual_RRFINAL_EFS_111014_awb 11/10/14 12:04 PM Page 10
Dieses Handbuch passt für folgende Modelle
1
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