User's Manual

OPERATING INSTRUCTIONS
DUAL INPUT K/J THERMOMETER
802
802U
USB & DC Power
802W Wireless
802UW
USB & DC Power & Wireless
(802W/802UW)
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 Tables
(N.I.S.T. Monograph 175 Revised to ITS-90) for K-type
and J-type thermocouples. Two K-type thermocouple are
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.
FEDERAL COMMUNICATIONS
COMMISSION
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:(1)
this device may not cause harmful interference, and (2)
this device must accept any interference received, in-
cluding interference that may cause undesired operation.
NOTE
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection. This equipment gener-
ates, uses and can radiated radio frequency energy and,
if not installed and used in accordance with the instruc-
tions, may cause harmful interference to radio commu-
nications. However, there is no guarantee that interfer-
ence will not occur in a particular installation If this
equipment does cause harmful interference to radio or
television reception, which can be determined by turn-
ing the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the fol-
lowing measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and
receiver.
- Connect the equipment into an outlet on a circuit dif-
ferent from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV techni-
cian for help.
Shielded interface cables must be used in order to com-
ply with emission limits.
Changes or modifications not expressly approved by the
party responsible for compliance could void the user‘s
authority to operate the equipment.
WIRELESS NOTE
Wireless receiver must keep a distance at least 40cm
from the meter and meter to meter must keep a distance
at least 30cm.
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 and T2 during meas-
urement): 1volt.
Reading Rate: 1 time per second.
Back Side: (802U/802UW)
1. USB Port
2. DC power JACK(12V)
Wireless Features: (802W/802UW)
Frequency range: 904~927.83MHz
Low current consumption les than 5 to 20mA
Viewable distance 25M
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: The meter key switches inactive for more
than 30 minutes, press power key to resume operation.
Dimensions: 160mm(H) x 83mm(W) x 38mm(D)
Weight: Approx. 270g including batteries.
Supplied Wire: 4 feet type “K” thermocouple bead wire
(Teflon tape insulated). Maximum insulation tempera-
ture 260°C (500°F). Wire accuracy ±2.2°C or ±0.75% of
reading (whichever is greater) from 0°C to 800°C.
Input Connector: Accepts standard miniature thermocou-
ple connectors (flat blades spaced 7.9mm, center to cen-
ter).
OPERATING INSTRUCTIONS
1. “ ” Power Switch
The “ ” key turns the thermometer on or off. In the
data SET mode, can not power off, must leave data SET
mode then power off.
APO function mode
Pressing “
” power key > 6 seconds to disable
auto-power function, and the display shows “APO
OFF”.
2. °C/°F Selecting the Temperature Scale
Readings are dual displayed in either degrees Cel-
sius(°C) or degrees Fahrenheit(°F). When the ther-
mometer 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
key.
3. Button (only Main display)
Press the 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
key
again to cancel HOLD mode causing thermometer to
resume taking measurements. In the MIN/MAX re-
cording mode, press
key to stop the recording.
Press
key again to resume recording. (Previously
recorded reading is not erased).
Backlight function mode
Pressing the
button over two seconds to turn
on and pressing the button again over two seconds to
turn off the backlight. The backlight will switch-off
automatically after 30 seconds.
4. T1 T2/T1-T2 Main display Input Selection
The input selection indicates which input is selected
for main display; T1 thermocouple, T2 thermocouple or
the difference between the two thermocouples (T1-T2),
when the thermometer is turned on, it is set to T1, when
main display input selected T1, then T1 input can select
1
2