leave MIN/MAX record mode then power off.
Storage Temperature:
-20°C to 60°C (-4°F to 140°F)
INTRODUCTION
This instrument is a portable 3½ digit, compact-sized
digital thermometer designed to use external K-type ther-
mocouples as temperature sensor. Temperature indication
follows National Bureau of Standards and IEC 584 tem-
perature/voltage tables for K-type thermocouples. One
K-type thermocouple is supplied with the thermometer.
OFFSET ADJUSTMENT
GENERAL
Display: 3½ digit liquid crystal display (LCD) with maxi-
mum reading of 1999.
Low battery indication: The “ ” is displayed when the
battery voltage drops below the operating level.
Measurement rate: 1 time/second.
The OFFSET control is set at the factory to allow for the
variations found in standard thermocouples. By adjusting
the OFFSET control, you can optimize measurement ac-
curacy for a particular thermocouple at a particular tem-
perature.
HH11B
DIGITAL THERMOMETER
M4613-0208
I NSTRU C TIO N
SHE E T
Shop online at: omega.com e-mail: info@ omega.com
For latest product manuals: omegamanual.info
Operating environment: 0°C to 50°C at <70% R.H.
Storage temperature: -20°C to 60°C, 0 to 80% R.H. with
battery removed from meter.
SAFETY INFORMATION
It is recommended that you read the safety and opera-
tion instructions before using the thermometer.
Adjusting for Accurate Measurements
1. Connect the thermocouple to the input connector and
turn the thermometer on.
Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.
Battery: Standard 9V battery (NEDA 1604, IEC 6F22).
Battery Life: 100 hours typical with carbon zinc battery.
Dimensions: 210mm(H) x 65mm(W) x 35mm(D).
Weight: approx. 282g including battery.
Supplied Wire: 4 feet type “K” thermocouple bead wire
(Teflon tape insulated). Maximum insulation temperature
260°C (500°F). Wire accuracy ±2.2°C or ±0.75% of read-
ing (whichever is greater) from 0°C to 800°C.
2. Place the thermocouple in a known, stable temperature
environment at or near the temperature you wish to
measure, and allow the readings to stabilize.
3. Slowly adjust the OFFSET control so that the ther-
mometer reading matches the temperature of the known
environment. Leave sufficient time between adjustments
to allow for measurement lag.
WARNING
To avoid electrical shock, do not use this instrument
when working voltages at the measurement surface
over 24V AC or 60V DC.
WARNING
To avoid damage or burns, do not make temperature
measurement in microwave ovens.
Resetting the OFFSET Control
To return the OFFSET control to the factory setting with-
out having to recalibrate the thermometer, perform the
following procedure:
1. Connect a thermocouple that is in good working order to
the input that is to be adjusted.
2. Place the thermocouple in an ice-water bath and allow
the readings to stabilize.
3. Slowly adjust the OFFSET control until the thermome-
ter reads 0°C (32°F).
OPERATING INSTRUCTIONS
CAUTION
Repeated sharp flexing can break the thermocouple
leads. To prolong lead life, avoid sharp bends in the
leads, especially near the connector.
1. “°C/°F” Button: Selecting the Temperature Scale
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 thermometer was last turned off. To change
the temperature scale, hold down for 2 seconds “APO
>2S°C/°F” key.
The
symbol on the instrument indicates that the op-
erator must refer to an explanation in this manual.
SPECIFICATIONS
Probe Detector
2. “HOLD” Button
ELECTRICAL
The red LED will be on when no K-type thermocouple
probe is inserted into the TEMP input of the meter, and
will be off after K-type thermocouple probe is inserted. If
the red LED stays on when thermocouple probe is attached,
check the thermocouple probe which might be damaged.
Press the “HOLD” key to enter the Data Hold mode, the
“HOLD” annunciator is displayed. When HOLD mode
is selected, the thermometer held the present readings
and stops all further measurements. Press the “HOLD”
key again cancels HOLD mode, causing the ther-
mometer to resume taking measurements.
Temperature Scale:
Celsius or Fahrenheit user-selectable
Measurement Range:
-200°C to 1372°C, -328°F to 1999°F
Auto range: 0.1°C/1°C, 0.1°F/1°F
Accuracy:
OPERATOR MAINTENANCE
Accuracy is specified for operating temperatures over the
range of 18°C to 28°C (64°F to 82°F), for 1 year, not in-
cluding thermocouple error.
±(0.1%rdg+1°C) on -60°C to 1372°C
±(0.1%rdg+2°C) on -60°C to -200°C
±(0.1%rdg+2°F) on -76°F to 1999°F
±(0.1%rdg+4°F) on -76°F to -328°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
to122°F).
Input Protection:
60V dc or 24V ac rms maximum input voltage on any
3. “REL” Button
Press “REL” key to enter Relative mode, zero the dis-
play, and store the displayed reading as a reference
value and annunciator REL is displayed. Pressing
“REL” key over 2 seconds to exit the relative mode.
WARNING
To avoid possible electrical shock, disconnect the
thermocouple connectors from the thermometer before
removing the cover.
Battery Replacement
4. “APO” Button
1. Power is supplied by 9V (NEDA 1604, IEC 6F22).
2. The “ ” appears on the LCD display when replace-
ment is needed.
Pressing “APO >2S °C/°F” key to trigger on or off APO
mode, and then APO annunciator will appear or disap-
pear on the display. Power is automatically turn off, if
no operation for a period of time, and “APO” annuncia-
tor is displayed at upper-left corner when APO function
is enabled.
3. Remove the battery from battery contacts.
4. When not use for long time remove battery.
5. Don’t keep in place with high Temp, or high humidity.
combination of input pins.
Input Connector:
Accepts standard miniature thermocouple connectors (flat
blades spaced 7.9mm, center to center).
Cleaning
5. “MIN/MAX” Button
Periodically wipe the case with a damp cloth and detergent,
do not use abrasives or solvents.
Press “MIN/MAX” once to begin recording MIN and
MAX. Press “MIN/MAX” to select MIN or MAX or
MAX-MIN or AVG. Hold down for 2 seconds to exit
MIN/MAX function.
ENVIRONMENTAL
Ambient Operating Ranges:
0°C to 50°C (32°F to 122°F)
In the MIN/MAX record mode can not power off, must
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