Omega HH803U - Manual

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HH803U
DUAL INPUT K/J DIGITAL THERMOMETER
INTRODUCTION
This instrument is a 5 digit, compact-sized portable
digital thermometer designed to use external K-type and J
type thermocouples as temperature sensor. Temperature
indication follows Reference Temperature/Voltage Ta-
bles (N.I.S.T. Monograph 175 Revised to ITS-90) for
K-type and J-type thermocouples. One K-type thermo-
couple is supplied with the thermometer.
SAFETY INFORMATION
It is recommended that you read the safety and opera-
tion instructions before using the thermometer.
WARNING
To avoid electrical shock, do not use this instrument
when working voltages at the measurement surface
over 24V AC or DC.
WARNING
To avoid damage or burns, do not make temperature
measurement in microwave ovens.
CAUTION
Repeated sharp flexing can break the thermocouple
leads. To prolong lead life, avoid sharp bends in the
leads, especially near the connector.
SPECIFICATIONS
ELECTRICAL
Temperature Scale: Celsius or Fahrenheit user-selectable
Measurement Range:
J-TYPE -200°C to 1050°C, (-328°F to 1922°F)
K-TYPE -200°C to 1370°C, (-328°F to 2498°F)
Resolution: 0.1°C or 0.2°F
Accuracy: Accuracy is specified for operating tempera-
tures over the range of 18°C to 28°C (64°F to 82°F), for 1
year, not including thermocouple error.
±(0.05% rdg + 0.3°C) -50°C to 1370°C
±(0.05% rdg + 0.7°C) -50°C to -200°C
±(0.05% rdg + 0.6°F) -58°F to 2498°F
±(0.05% rdg + 1.4°F) -58°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:
24V dc or 24V ac rms maximum input voltage on any
combination of input pins.
Maximum Differential Common Mode Voltage
(Maximum Voltage between T1 during measurement):
1volt.
Reading Rate: 1 time per second.
External Connections:
1. USB Port
2. DC power JACK(12V)
ENVIRONMENTAL
Ambient Operating Ranges:
0°C to 50°C (32°F to 122°F) <80% R.H.
Storage Temperature:
-20°C to 60°C (-4°F to 140°F) <70% R.H.
GENERAL
Display: 5 digit liquid crystal display (LCD).
Overload: “----.-” or “OL” is display.
Battery: 1.5V x 4 PCS (SIZE AAA) UM-4 R03.
Battery Life: 190 hours typical with carbon zinc battery.
Auto power off: 30 minutes, press power key to resume
operation.
Dimensions: 160mm(H) x 83mm(W) x 38mm(D).
Weight: Approx. 265g including batteries.
Supplied Thermocouples (2 per input):
1 meter (40”) type K insulated beaded wire thermocouple.
Maximum insulation temperature is 482°C (900°F).
Thermocouple accuracy is ±1.1°C or 0.4% of reading
(whichever is greater) from 0°C to 1250°C.
OPERATING INSTRUCTIONS
1. “ ” Power Switch
The “ ” key turns the thermometer on or off. In the SET
mode cannot be powered off. Exit SET mode to power
off.
APO function mode
Press “ ” power key for more than 6 seconds to disable
the auto-power function. The display will show “APO
OFF”.
2. °C/°F 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 tem-
perature scale, press the °C/°F key.
3. “ ” Button (only Main display)
Press this key to enter the Data Hold mode, the “HOLD”
annunciator is displayed. When HOLD mode is selected,
the thermometer holds the present readings and stops all
further measurements. Press the “ ” key again to
cancel HOLD mode and resume measurements.
In the MIN/MAX recording mode, press “ ” key to
stop the recording. Press “ ” key again to resume
recording. (Previously recorded readings are not erased).
Backlight function mode
Press the “ ” key for more than two seconds to turn
on the backlight. Press the key again for more than two
seconds to turn off the backlight. The backlight will
switch-off automatically after 30 seconds.
4. Cold Junction Temperature Display mode
(second display)
Press C.J. TEMP key to display the thermocouple input
connector cold junction temperature on second display.
Press C.J. TEMP key again to exit this mode.
M4542/0611
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INSTRUCTION
SHEET
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It is the policy of OMEGA Engineering, Inc. to comply with all
worldwide safety and EMC/EMI regulations that apply. OMEGA
is constantly pursuing certification of its products to the
European New Approach Directives. OMEGA will add the CE
mark to every appropriate device upon certification.
The information contained in this document is believed to be
correct, but OMEGA accepts no liability for any errors it
contains, and reserves the right to alter specifications without
notice.
These products are not designed for use in, and
should not be used for, human applications.
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