RECALL MINIMUM/MAXIMUM
1. Press MIN/MAX to view the minimum and maximum
temperatures recorded since turning the unit on or
since clearing min/max.
2. Press the MIN/MAX button once to display the
minimum temperature. The lower portion of the
display shows
“
MIN
”
indicating that this is the
minimum reading. While in the MIN/MAX mode,
select the desired format with the °F/°C or
.0/.00/.000/.0000 buttons.
3. Press the MIN/MAX button again to display the
Maximum temperature. The lower portion of the
display shows
“
MAX
”
indicating that this is the
maximum reading. A third press will return the
display to the current reading.
4. MIN/MAX may be reviewed at any time.
5. To clear the MIN/MAX, place the unit in normal mode
(not reviewing the MIN/MAX) and press MIN/MAX
and CLEAR simultaneously. You may also clear
MIN/MAX by turning the unit off.
HOLD FUNCTION
1. Press the HOLD button once to
“
freeze
”
the display
at the current temperature reading.
“
HOLD
”
appears
on the lower portion of the display indicating that the
unit is in hold mode.
2. While in the HOLD mode, select the desired format
with the °F/°C or .0/.00/.000 buttons.
3. Press the HOLD button a second time to return to
the current temperature reading.
“
HOLD
”
will no
longer appear on the display.
POWER
Do not turn the unit on and off rapidly. It may lock the
display. When turning the unit on/off the microprocessor
may become locked, inoperable, or the display may
read
“
888888.
”
If this occurs, reset the thermometer by
removing the battery, waiting 15 seconds, and replacing
the battery.
OPERATION
1. Plug the probe into the receptacle located on the right
side of the unit.
2. Press the ON/OFF button to turn the unit on.
3. Press the °F/°C button to change the display
between Fahrenheit and Celsius.
4. Press the .0/.00/.000/.0000 button to change the
display to read the desired resolution.
5. Use the probe to monitor temperatures in air/gas,
liquids, and semi-solids. Place the stainless-steel
portion of probe in contact with the material to be
measured. In most instances the depth of the probe
needs to be approximately
½
inch.
6. Press the ON/OFF button to turn the unit off when the
thermometer is not in use to prolong battery life.
HISTORY MODE
History provides an effortless method to observe when a
temperature change takes place. It continuously displays
for the past 24 hours starting with 1 hour ago. If left on for
more than 24 hours, it displays only the most recent 24
hours. History may be reviewed at any time.
1. After 1 hour, press the HISTORY button once to
show the current or first hour reading. The display
will show
“
1
”
on the far right to indicate this is the first
reading. After approximately two seconds, the display
will show the temperature and
“
min
”
which indicates
this is the minimum reading for the first hour. After
approximately two more seconds, the display will
again show
“
1
”
. The display continues to alternate
between these two displays. While in the history
mode, the °F/°C or .0/.00/.000 buttons may be used
to select the desired format.
2. The second press of the HISTORY button shows the
maximum temperature for the current or first hour.
After approximately two more seconds, the display
will show
“
1
”
.
3. With each press of the HISTORY button, the unit
will scroll through all 48 minimum and maximum
readings.
4. To exit the history mode, press the CLEAR button
or MIN/MAX button. As long as the unit is in the
history mode, pressing the CLEAR button alone will
not clear the history.
5. To clear history, first exit the history mode and then
press HISTORY and CLEAR buttons simultaneously.
Turning the unit off does not clear the history.
SPECIFICATIONS
Range:
-328.00 to 932.000°F
-200.00 to 500.000°C
Resolution:
0.001°, 0.01° or 0.1°
(user selectable)
from -99 to 932°F/-99 to 500°C
0.01° or 0.1°
from -328 to -100°F/-200 to -100°C
0.0001° from -9.9999 to 99.9999 °F/°C
Sampling Rate:
approximately 2 times per second
Memories:
48 Memories are stored in the History
Mode (min/max for the past 24 hours)
2 Memories are stored in the Min/Max
Mode (min/max for the current hour)
Probes Supplied:
Model 6412
supplied with a fast response, handle-probe.
The stainless steel portion of the probe is capable of
measuring temperatures through the entire range (-328 to
932°F/-200 to 500°C)
Model 6413
supplied with a fast response, bullet-probe
with PTFE cable. The sensor
and
cable are capable of
being subjected to temperatures of -148 to 392°F/-100
to 200°C
BUTTON DESCRIPTION
ON/OFF
Turns unit on and off.
°F/°C:
Selects °Fahrenheit/°Celsius
.0/.00/.000/.0000
Selects decimal point on display
HISTORY
Displays history memories
HOLD/CLEAR
Press to hold reading also used in
conjunction with HISTORY or
MIN/MAX buttons to exit the mode or
clear readings.
MIN/MAX
Displays the highest and lowest
temperatures recorded for the current
hour.
DISPLAY MESSAGES
▲
Appearing indicates temperature is rising.
▼
Appearing indicates temperature is falling.
“
LLL
”
Displayed when the temperature being
measured is below the range of the unit or when
there is an open probe or no probe.
“
HHH
”
Displayed when the temperature being
measured is above the range of the unit or
when there is a shorted probe.
“
BAT
”
Displayed when the battery is low and needs to
be replaced. See Battery section for battery
replacement instructions.
RECEPTACLES
The receptacle on the right side of the unit is for the
probe. The upper left side receptacle is for an accessory
AC Adaptor. The lower left side receptacle is for the
accessory Data Acquisition System data cable.
DATA OUTPUT
In order to use the data output, the
Accessory Data
Cable Cat No. 4099
is required. See Accessories section
for ordering information.
With the accessory data cable attached, to toggle the
RS232 output on/off, press and hold the °F/°C and
.0/.00/.000/.0000 simultaneously (
2320
indicates
RS232 output is
“
on
”
,
232F
indicates RS232 output
is
“
off
”
).
BATTERY
If
“
BAT
”
appears on the display, it indicates the
batteries are low and need to be replaced. To replace
the battery, slide the battery cover located on the back
of the unit away from the unit. Remove the old battery
and replace it with a new 9-Volt alkaline battery. Use an
alkaline battery, NOT a regular or heavy duty battery.
Properly connect the battery. Replace the battery cover.
Incorrectly installed batteries may damage electronics.
ALL OPERATIONAL DIFFICULTIES
If this thermometer does not function property for any
reason please replace the battery with a new 9-Volt
alkaline battery Battery section, above). Low battery
power can occasionally cause any number of
“
apparent
”
operational difficulties. Replacing the battery with a new
fresh battery will solve most difficulties.
