Omega Engineering HH801A Instruction Sheet

HH801A
DUAL INPUT K/J DIGITAL THERMOMETER
M4460/0711
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.
FEATURES:
Data Storage for 125 samples
Highly accurate single input thermometer with 0.1%
basic accuracy
Large display for easy to read
Robust protective Holster
Thermocouple offset adjustment
°C/°F selection
MIN/MAX/HOLD functions
Display backlight
Auto-Power Off (APO)
Auto-Range: 0.1/1°
Wide measuring ranges suitable for numerous applica-
tions
INTRODUCTION
®
®
This instrument is a portable 3½ digit, compact-sized
digital thermometer designed to use external K type and J
type thermocouples. It also has the feature that sensor
offset can be adjusted for in the field. There are 2 inputs
for miniature thermocouple connectors at the top of the
instrument marked T1 and T2.

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:
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).
Accuracy:
Accuracy is specified for operating temperatures over the
range of 18°C to 28°C (64°F to 82°F), for 1 year, not
including thermocouple error.
±(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.
Reading Rate: 1 time per second.
Input Connector:
Accepts standard miniature thermocouple connectors
(flat blades spaced 7.9mm, center to center).
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:
3½ digit liquid crystal display (LCD) with maximum
reading of 1999.
Overload: "-OL" is displayed.
Battery:
1.5Vx4pcs AAA size.
Battery Life:
150 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 (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 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 thermometer was last turned off. To change the
temperature scale, press the "°C/°F" button.
3. " / " Button
Press the " " button to turn on the backlight. Press the
" " button again to make the backlight brighter and
press " " button once more to turn off the backlight.
Backlight on Brighter Backlight off.