BT-64
MULTIFUNCTION IR THERMOMETER
OPERATION MANUAL
1. SAFETY RULES
To ensure that the meter is used safely, follow all safety and operating instructions in
this operation manual. If the meter is not used as described in this operation manual,
the safety features of this meter might be impaired.
Do not look directly into the laser beam when the device is in use–permanent eye
damage may result.
Use extreme caution when operating the laser.
Never point the device towards anyone’s eyes.
Keep out of reach of children.
2. INTERNATIONAL SYMBOLS
3. SPECIFICATIONS
Important information
see manual
Laser device. Avoid towards
anyone’s eyes
Item
Non-contact Infrared Scan
Function
Thermocouple Probe Scan function
(K type; probe not included.)
-60 to +1000°C
(-76 to +1832°F)
-64 to +1400°C
(-83.2 to +2552°F)
Measurement
Range
0 to +50°C (32 to 122°F)
±1% of reading or 1°C (1.8°F)
whichever is greater (Test under
Tamb.=23±6°C)
0.95 default – adjustable 0.1 to 1 step .01
0.1°C/0.1°F at -83.2 to +999.9(°C/°F), otherwise 1°C/1°F
1sec
1~99%, accuracy: ±3% from 20~80%, otherwise ±5%
Operating Range
Accuracy (Tamb=
23±3°C)
±1.0°C (1.8°F)
Emissivity Range
Resolution
Relative Humidity
(Tamb=23±5degC
Response Time
(90%)
30:1 (90% energy covered)
Distance: Spot
Internal Memory
Detailed 50 Memories with Temperature & Emissivity
-20 ~ +65°C, accuracy: ±2.5°C
4. THERMOMETER DESCRIPTIONS
5. OPERATION
WARNING
The measurement range is for thermometers only. Users should choose proper probe
types for different kinds of applications. Please make sure the target to be measured
will not exceed the temperature range of the probe to avoid permanent damage to the
thermocouple probe.
Caution: To avoid electric shock and thermometer damage, do not measure the live
circuit with the thermocouple probe voltage exceeding 24V AC RMS or 60V DC.
EMC/RFI: Readings may be affected if the unit is operated within radiofrequency
electromagnetic field strength of approximately 3 volts per meter, but the instrument's
performance will not be permanently affected.
5.1 Function Selection
Press Mode Key (4) for scrolling display functions as follows:
Display
Function
THB (thermal bridge detection) is the default mode.
Here will show the emissivity data. (The default emissivity is
0.95.)
Press Mode key (4) for the
Maximum (MAX), Minimum (MIN),
Different between MAX and MIN (DIF) and Average (AVG)
modes. During the measurement, the special modes reading
will be displayed beside the mode icon
.
** The Thermometer will automatically shut off if left idle for more than 60sec., unless in PRB
mode. (In PRB mode, it will shut off if left idle for more than 12 minutes.)
1)
2)
3)
•
•
•
•
•
Accuracy (Tobj=15-
35°C, Tamb=25°C)
Tobj=-60~0: ±(2+0.05/°C)°C,
Tobj=0~1000: ±2% of reading
or 2°C (4°F) whichever is
greater
Dry bulb
temperature
Wet bulb
temperature
-20 ~ +65°C, accuracy: ±2.5°C
Dew Point
Temperature (DPT)
-50 ~ +50°C, accuracy: ±2.5°C from 20~30%RH; ±2°C from
31~40%RH; ±1.5°C from 41~95 %RH
Battery Life
(Alkaline)
Typical 8 hours, minimum 7 hours continuous use (Alkaline battery,
with laser and backlight)
Typical 32 hours, minimum 30 hours continuous use (Alkaline
battery, with backlight but without laser)
Dimensions
53 x 124 x 171 mm (2.1 x 4.9 x 6.7 inch)
Weight
~240 g (8.5 oz) including batteries (AAA*2pcs)
(DPT) Display
(THB) Display
IRT (infrared temperature) – Tamb (temperature
ambient) > 6.5°C: icon displays “
red side
flashing
”, the bar shows
RED
color, and “Hi” is
beside the THB mode icon.
(a)
IRT - Tamb < -6.5°C: icon displays “
blue
side flashing
”, the bar shows
BLUE
color, and
“Lo” is beside the THB mode icon.
(b)
IRT – Tamb > 5.75°C or < -5.75°C: The buzzer
and optional vibration functions will start
activating at the same time.
(c)
According to the following value, “CHK” (check)
is displayed beside the THB mode icon and
please continue to observe.
(d)
4.25°C < IRT - Tamb < 6.5°C: the bar shows
RED
color; -3.5°C
≦
IRT - Tamb < 4.25°C: the bar shows
YELLOW
color; -6.5°C <
IRT - Tamb < -3.5°C: the bar shows
BLUE
color.
Press Mode key (4), then press Up key (2) or Down key (3) to
set the emissivity, then press Mode key (4) to confirm it. The
emissivity can be changed from 0.10 (10E) to 1 (100E).
Press Up key (2) or Down key (3) to change the
High Alarm
(HAL)
or
Lo Alarm (LAL)
, then press Meas. key (6) to confirm it.
When the reading is outside the
High Alarm (HAL)
or
Lo Alarm
(LAL)
limit. The High or Low icon will flash and you will hear a
beep sound.
Connect the thermocouple with Thermocouple Socket (10) and
put the probe in/on the target, the thermometer will display the
temperature automatically without pressing any button. To see
the minimum or maximum data during the probe measurement,
please hold down the Up key (2 or Down key (3).
After measure high temp, the probe may remain HOT for a
while.
Press Mode key (4) for the
RH% (relative
humidity) mode
, then press Up key (2) for
DBT
(dry bulb temp)
,
WBT (wet bulb temp.) modes.
During the measurement, the special modes
reading will be displayed beside the mode
icon.
(a) 60% < RH
≦
75%: The screen displays icon.
(b) 75% < RH
≦
90%: The screen displays icon.
(c) RH > 90%: The screen displays icon.
After taking the temperature, press Mode key (4) for the
Memory
(M00)
, then press Meas. key (6) to save the measurement.
Under the
Memory (M00)
, press Up key (2) or Down key (3) key
to display the record up to 50 sets. In “Memory” mode, press and
hold the “Up” key, then press the “Down” key for 2 seconds to
clear the records.
Press Mode key (4) for
DPT (dew point
temperature) modes. During the measurement,
the special modes reading will be displayed
beside the mode icon
.
(a) IRT (infrared temperature) - DPT (dew point temperature)
> 1.9°C: The bar shows
YELLOW
color.
(b) 1.1°C < IRT - DPT
≦
1.9°C: The bar shows
Blue
color and
displays icon.
(c) -0.5°C < IRT - DPT
≦
1.1°C: The bar shows
Blue
color and
displays icon.
(d) IRT - DPT
≦
-0.5°C: The bar shows
Blue
color and
displays icon.
In (b), (c) and (d) cases, the icon , , is the indication
for the risk of condensation as well as mold warning, the buzzer
and optional vibration functions are activated at the same time.
Class Illa Laser
Laser
Note: Not recommend using external K-type thermocouple for long time measurement
above 1000°C (1832°F)
