Using the Offset to Compensate for Probe Errors
Use the offset option in “
SETUP
” to adjust temperature readings to
compensate for the errors of a specified thermocouple.
1. Plug the thermocouple into the input terminal.
2. Place the thermocouple in a known stable temperature
environment (such as an ice bath or a dry well calibrator).
3. Allow the readings to stabilize.
4. In “
SETUP
”, change the offset until the primary display reading
matches the calibration temperature. See “
How to Change
Setup Options
”
3. How to Use Memory
During logging session, the thermometer stores logged readings in its
memory. At the end of the logging session you can view the logged
readings on the display. You can also transfer the logged readings to
a PC running the provided WS600 software (optional), see “
How to
Communicate with a PC
”.
WS600 displays the readings on an online form, which you can print or
store for later use.
Initial Conditions and Data Entries
Logged readings include initial conditions and data entries. The
initial conditions are the thermocouple type and the offsets for each
thermocouple input. You can only view initial conditions using WS600.
The data entries are a time stamp and the T1, T2 or T1-T2 reading
for the DT302 and current reading for the DT301. You can view
these values by pressing “ “ momentarily or using WS600. The
thermometer has 9,999 memory locations. The thermometer stores
9,999 sets of temperature readings and one set of initial conditions
when logging continuously. It stores 9,999 sets of temperature readings
and initial conditions when logging individual points manually.
11
Holding the Displayed Temperature
1. Press “ “ momentarily to freeze the readings on the display.
The display shows “
HOLD
“.
2. Press “ “ momentarily again to turn off the “
HOLD
“ function.
NOTE:
Press “
“ when turning on the thermometer to test the
display. All display segments appear.
Using the Relative Measurements (DT301)
1. Press “ “ momentarily to enter or exit the “
RELATIVE
”
mode. When the thermometer is in Relative mode, the display
shows “
REL
”.
2. The difference value between the stored reference value and the
measured reading value appears in the secondary display.
Viewing the MIN/MAX/AVG Readings
NOTE:
MIN/MAX and AVG values are captured only while this
mode is active. Exiting the MIN/MAX/AVG mode will clear all
values.
1. Press “ “ momentarily to step through the
MIN
(minimum),
MAX
(maximum), or the
AVG
(average) readings in the
secondary display.
The elapsed time since entering
MIN/MAX
mode appears with
the average reading, or the time at which the
MINIMUM
or
MAXIMUM
occurred appears with the
MINIMUM
or
MAXIMUM
reading on the display.
3. (DT302) Press “ “ momentarily to toggle showing the
maximum (MAX) of T1, or T2 readings and its
displayed time.
Press “ “ for more than 1 second to show the
maximum (MAX) of T1-T2 reading and its
displayed time.
The minimum (MIN) or average (AVG) reading can be
displayed in the similar way.
3. Press “ “ for more than 1 second or “ “ button for more
than 1 second to exit
MIN/MAX
mode.
10
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