INTRODUCTION
1
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This instrument is a portable 3 2 digit, compact-sized digital Accuracy:
To prevent accidental loss of MAX, MIN and MAX-MIN,
this mode can only be cancelled by pressing and holding
down the “MAX MIN” button for 2 seconds to exit and
clear readings.
thermometer designed to use external K type and J type Accuracy is specified for operating temperatures over the
thermocouples. It also has the feature that sensor offset can
be adjusted for in the field. There are 2 inputs for miniature cluding thermocouple error.
range of 18°C to 28°C (64°F to 82°F), for 1 year, not in-
thermocouple connectors at the top of the instrument
marked T1 and T2.
(0.1% rdg + 1°C) on °C
(0.1% rdg + 2°F) on °F
Temperature Coefficient:
0.1 times the applicable accuracy specification per °C
from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and
82°F to 122°F).
Input Protection:
24V dc or 24V ac rms maximum input voltage on any
combination of input pins.
7. “CLR/READ“ Button
Press “READ” button to enter READ Mode, the “READ”
annunciator is displayed in the upper right corner. Press
OPERATING INSTRUCTIONS
MODEL HH801A
“
”or “ ” button to review the recorded data. The LCD
SAFETY INFORMATION
DUAL J/K INPUT
automatically alternates between the data and index. Press
the “CLR” button and hold down for 2 seconds to clear the
memory.
It is recommended that you read the safety and operation
instructions before using the thermometer.
DIGITAL THERMOMETER
WARNING
8. “REC“ Button
To avoid electrical shock, do not use this instrument
when working voltages at the measurement surface
over 24V AC or DC.
Up 125 data points can be recorded into memory.
Press “REC” button once to record each data point. When
the data is recorded, “REC” is displayed in the upper right
corner. If the memory is full, data will not be recorded into
the memory and “REC” will not be displayed. Data can be
recorded again after the memory is cleared.
Reading Rate: 1 time per second.
Input Connector:
Accepts standard miniature thermocouple connectors
®
HH801A
(flat blades spaced 7.9mm, center to center).
WARNING
To avoid damage or burns, do not make temperature
measurement in microwave ovens.
9. “T1 T2/T1-T2/ “ Button
Press “T1”, “T2”, “T1-T2” button to select input mode T1,
T2 or T1-T2. The input selection indicates which input is
selected for display, T1 thermocouple, T2 thermocouple or
the differential between the two thermocouples (T1-T2).
1. “ ” Power Button
Press the “ ” button to turn on or off thermometer.
2. “ /°C/°F” Button
Readings are displayed in either degrees Celsius (°C) or
degrees Fahrenheit(°F). When the thermometer is turned
on, it is set to the temperature scale that was in use when
the thermometerwas last turned off. To change the tem-
perature scale, press the “°C/°F” button.
CAUTION
Repeated sharp flexing can break the thermocouple
leads. To prolong lead life, avoid sharp bends in the
leads, especially near the connector.
GENERAL
Display: 3_ digit liquid crystal display (LCD) with maxi-
mum reading of 1999.
Overload: ”-OL” is displayed.
1. Insert the thermocouple into a known temperature (T)
until the display stabilizes near the known temperature
(T). example: ice point at 0°C or boiling water 100°C
2.Press and hold the “ADJ/HOLD” button for 2 seconds
until the display starts to blink.
3. Press “ ” or “ ” to adjust the displayed value.
4. It can be adjusted 6°F ( 3°C) from default. If you
can not adjust your reading to match the known tem-
perature (T), please check your T/C type. The meter
may require calibration.
3. “
Press the
/
”Button
Battery: 1.5Vx4pcs AAA size.
“
”
the on
backlight.Pressthe
button to trigger
Battery Life: 200 hours typical with carbon zinc battery.
Auto Power Off: Approximately 20 minutes.
Dimensions: 160mm(H) x 83mm(W) x 38mm(D).
Weight: 230g.
Supplied Thermocouples (1 per input):
1 meter (40") type K insulated beaded wire thermocouple.
Maximum insulation temperature is 482°C (900°F). Ther-
mocouple accuracy is 1.1°C or 0.4% of reading (which-
ever is greater) from 0°C to 1250°C.
i
br
“
“
” button again to make the backlight ghter and press
” button once more to turn off the backlight.
Backlight on →Brighter → Backlight off.
4. “ADJ/HOLD” Button
Press the “HOLD” button to enter the Data Hold mode, the
“HOLD” annunciator is displayed at the top of the display.
When HOLD mode is selected, the thermometer holds the
present readings and stops all further measurements.
Pressing the “HOLD” button again cancels HOLD mode,
causing the thermometer to resume measurement.
5. “APO/TYPE“ Button
Press “TYPE” button to select the type of thermo couple
“K” or “J”. Make sure the proper type has been selected.
Pressing and holding down “APO” button for 2 seconds
will turn on or off the APO(Automatic Power Off) mode,
and the APO annunciator will appear or disappear on the
display. Power is automatically turned off if no button is
pressed for a period of time.
5. Press “ENTER” button to confirm.
ENVIRONMENTAL
Ambient Operating Ranges:
0°C to 50°C (32°F to 122°F) <80% R.H.
Storage Temperature:
WARNING
To avoid possible electrical shock, disconnect the ther-
mocouple connectors from the thermometer before
removing the cover.
MADE IN TAIWAN
FEATURES:
-20°C to 60°C (-4°F to 140°F) <70% R.H.
Battery Replacement
Data Storage for 125 samples
Highly accurate single input thermometer with 0.1% basic
accuracy
1. Power is supplied by 4pcs 1.5V (AAA SIZE) uM-4 R03.
2. The “ ” appears on the LCD display when replace-
ment is needed. To replace battery remove screw from
back of meter and lift off the battery cover.
3. Remove the battery from battery contacts and replace.
4. When not in use for long periods remove battery.
5. Do not store in locations with high temperatures, or high
humidity.
SPECIFICATIONS
Large display for easy to read
Robust protective Holster
Thermocouple offset adjustment
°C/°F selection
MIN/MAX/HOLD functions
Display backlight
Auto-Power Off
Temperature Scale: Celsius or Fahrenheit user-selectable.
Measurement Range:
6. “MAX MIN“ Button
Press “MAX MIN” button to enter the MAX MIN record-
ing mode. Press “MAX MIN” button to cycle through the
MAX, MIN, MAX-MIN readings. In this mode, press
“HOLD” button to stop recording, all values are held, press
again to resume measurement. In this mode, the APO
function and other buttons are disabled, excluding “HOLD”
and “ ” buttons.
K-Type -100°C to 1372°C, (-150°F to 1999°F)
J-Type -100°C to 1200°C, (-150°F to 1999°F)
Resolution:
1 degree or 0.1 degree from -59.9 to 199.9 degree °C or °F
(auto ranging).
Cleaning
Auto-Range: 0.1/1°
Wide measuring ranges suitable for numerous applications
Periodically wipe the case with a damp cloth and detergent,
do not use abrasives or solvents.
V1. 032707
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