Digi-Sense 20250-66 Manuale utente
THE STANDARD IN PRECISION MEASUREMENT
User Manual
Digital IR Multimeter
with Bluetooth®Mobile App and
NIST-Traceable Calibration
Model 20250-66
2
Introduction
The Digi-Sense Digital IR Multimeter (Model 20250-66) is Bluetooth®enabled, allowing for
wireless communication with any Android™and iOS®devices using the free D/S T-View app.
This app turns your device into a real-time data monitoring system that allows you to review,
evaluate, modify and transfer the data collected to email or text. It also allows you to keep a
safe distance from potentially hazardous parameters or leave the measuring instrument in
place over time and wirelessly collect data at your convenience. Once on your device, the
data can be forwarded to others via email or text message and saved for future reference
or analysis.
Wireless setup is simple. Download the free D/S T-View app to your Android or iOS device.
Place the meter in Bluetooth mode and open the app on your device. The meter will be sensed
by your device and be listed as an available source that you can select. Once selected, the data
sensed by the meter is displayed on your device and some of the instrument functions can be
accessed. A full description of its operation is available for download in the app.
The Digital IR Multimeter provides true RMS measurements and comes with a built-in
Thermal Imager and TFT color LCD, providing fast A/D converting sampling time, and high
accuracy. It is a valuable tool for finding and solving equipment problems and comes with
Bluetooth technology. Additional safety is provided by the double-molded plastic housing
design and IP65 waterproof function.
Key Features
• Bluetooth interface
• 6000 count 2.8'' TFT Color LCD
• Built-in Thermal imager with Max, Min
and Center crosshair targeting
• 50 Hz fast Thermal image frame rate
• DC voltage
• AC, AC+DC TRMS Voltage
• DC current
• AC, AC+DC TRMS current
• Resistance and continuity test
• Diode test
• Capacity
• Frequency
• Duty cycle
• Temperature with type K probe
• Flexible coils current
Unpacking
Check individual parts against the list of items below. If anything is missing or damaged,
please contact your instrument supplier immediately.
1. Meter
2. Test leads
3. One type K temperature probe
4. Two rechargeable Li-ion batteries
5. Battery charger cradle with international
adapters
5. Hard carrying case
6. User manual
7. NIST-traceable calibration report with data
3
Safety
This symbol adjacent to another symbol, terminal or operating device indicates
that the operator must refer to an explanation in the Operating Instructions to
avoid personal injury or damage to the meter.
This WARNING symbol indicates a potentially hazardous situation, which if not
avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation, which if not
avoided, may result damage to the product.
This symbol advises the user that the terminal(s) so marked must not connected
to a circuit point at which the voltage with respect to earth ground exceeds (in
this case) 1000 VAC or VDC.
This symbol adjacent to one or more terminals identifies them as being associ-
ated with ranges that may, in normal use, be subjected to particularly hazardous
voltages. For maximum safety, the meter and its test leads should not be handled
when these terminals are energized.
This symbol indicates that a device is protected throughout by double insulation
or reinforced insulation.
MAX
WARNING
CAUTION
Safety Instructions
This meter has been designed for safe use, but must be operated with caution. The rules
listed below must be carefully followed for safe operation.
• NEVER apply voltage or current to the meter that exceeds the specified maximum:
• USE EXTREME CAUTION when working with high voltages.
• DO NOT measure voltage if the voltage on the “COM” input jack exceeds 1000V above
earth ground.
• NEVER connect the meter leads across a voltage source while the function switch is in the
current, resistance, or diode mode. Doing so can damage the meter.
• ALWAYS discharge filter capacitors in power supplies and disconnect the power when
making resistance or diode tests.
• ALWAYS turn off the power and disconnect the test leads before opening the covers to
replace the fuse or batteries.
• NEVER operate the meter unless the back cover and the battery and fuse covers are in
place and fastened securely. If the equipment is used in a manner not
specified by the manufacturer, the protection provided by the equipment may be impaired.
Input Protection Limits
Function Maximum Input
V DC or V AC 1000VDC/AC RMS
mA AC/DC 800mA 1000V fast acting fuse
A AC/DC 10A 1000V fast acting fuse
Frequency, Resistance, Capacitance, Duty Cycle, Diode Test, Continuity 1000VDC/AC rms
Surge Protection: 8kV peak per IEC 61010
4
Description and reference guide
Front description
1. NCV detector area
2. LCD
3. Navigation/Menu buttons
4. MODE button
5. RANGE button
6. Rotary function switch
7. Positive (+) probe input jack for A (current)
8. Positive (+) probe input jack for mA (current)
9. COM(-) probe input jack
10. Positive (+) probe input jack for all inputs
except A and mA
11. Thermal mode/light button
12. Hold/capture button
Back description
13. No-slip slope
14. Thermal imager lens
15. Lens cover
16. Work light
17. Laser
18. Support plate
19. Battery cover lock
12
10
11
8
7
6
5
4
3
2
1
9
19
18
17
16
15
14
13
REL
PEAK
MAX
Understanding the Push Buttons
The 9 push buttons on the front of the Meter activate fea-
tures that augment the function selected using the rotary
switch, navigate menus or control power to Meter circuits.
• Cursor buttons:
Select an item in a menu, adjust display contrast, scroll
through information, and perform data entry.
Use Navigation UP button to select PEAK function.
Use Navigation Left button to select REL function.
Use Navigation Right button to select MAX function.
5
• Physical buttons:
Freezes the present reading in the display and allows display to be saved.
Also wake up for APO.
Press the MODE key to switch the functions.
Press the RANGE key to manual range.
Enter function of the menu selects.
Press the IR key to switch DMM MODE and IR+DMM MODE.
Navigation buttons.
Understanding the Display
• Measurement on LCD
1. Indication of battery charge level
2. Indication of measuring result
3. Indication of Automatic/Manual mode
4. Analog bar graph
5. Indications associated with function keys
6. Indication of the system's time
7. Indication of measuring unit
8. SD card
9. Temperature measuring result
10. Indication of Automatic/Manual mode
11. Temperature unit
12. IR camera
13. Indication of measuring unit
14. Indication of measuring result
HOLD
ESC
MODE
RANGE
IR
■��
7
6
5
4
3
2
1
DMM Mode
14
13
12
11
10
9
8
IR+ DMM Mode
• Icons on LCD
Voltage is over 30V
(AC or DC)
Warning
Flexible coils
Traditional clamps
Relative
High edge time
AC voltage or
current
DC voltage or
current
AC+DC voltage
or Current
Continuity function
Diode function
Ohms
ϙ
r
~
~
•)))
Ω
6
Understanding the Rotary Switch
Select a primary measurement function by positioning the rotary switch to one of the
icons around its perimeter. For each function, the meter presents a standard
display for that function (range, measurement units, and modifiers). Button choices made
in one function do not carry over into another function.
V~AC voltage measurements
V~DC and AC+DC voltage measurements
HZ % Frequency and Duty measurements
ΩCAP
•)))
Resistance, Diode test, Capacitance and Continuity
measurements
K Temp Temperature measurements
AAC, DC and AC+DC amps measurements
mA AC, DC and AC+DC milliamps measurements
µA AC, DC and AC+DC microampere measurements
up to 6,000 μA
Flexible coils current
=
ϙ
DMM Measurement and Setup
DC Voltage Measurements
CAUTION: Do not measure DC voltages if a motor on the circuit is being switched ON
or OFF. Large voltage surges may occur that can damage the meter.
• Set the function switch to the VDC position.
• Insert the black test lead banana plug into the negative COM jack. Insert the red test
lead banana plug into the positive V jack.
• Read the voltage in the display.
AC+DC Voltage Measurements
CAUTION: Do not measure DC voltages if a motor on the circuit is
being switched ON or OFF. Large voltage surges may occur that can
damage the meter.
• Set the function switch to the VDC position.
• Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
• Press the MODE key to switch the V AC+DC Voltage functions.
• Read the AC+DC voltage in the display.
AC Voltage Measurements
WARNING: Risk of Electrocution. The probe tips may not be long enough to contact
the live parts inside some 240V outlets for appliances because the contacts are
recessed deep in the outlets. As a result, the reading may show 0 volts when the
outlet actually has voltage on it. Make sure the probe tips are touching the metal
contacts inside the outlet before assuming that no voltage is present.
CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON
or OFF. Large voltage surges may occur that can damage the meter.
7
• Set the function switch to the VAC position.
• Insert the black test lead banana plug into the negative COM jack. Insert red test lead
banana plug into the positive V jack.
• Read the voltage in the main display.
Frequency Measurements
• Set the function switch to the Hz% position.
• Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive V jack.
• Read the Frequency in the display.
• Press the MODE key to switch the Duty functions.
• Read the Duty in the display.
Resistance Measurements
To avoid electric shock, disconnect power to the unit under test and discharge all
capacitors before taking any resistance measurements. Remove the batteries and unplug
the line cords.
• Set the function switch to the ΩCAP
•)))position.
• Insert the black test lead banana plug into the negative COM jack. Insert the red test
lead banana plug into the positive Ωjack.
• Read the resistance in the display.
Continuity Check
WARNING: To avoid electric shock, disconnect power to the unit under test and discharge
all capacitors before taking any resistance measurements. Remove the
batteries and unplug the line cords.
• Set the function switch to the ΩCAP
•)))position.
• Insert the black test lead banana plug into the negative COM jack. Insert the red test lead
banana plug into the positive jack.
• Press the MODE key to switch the continuity functions.
• If the resistance is less than approximately 50 Ω, the audible signal will sound. If the
circuit is open, the display will indicate “OL”.
4.7. Diode Test
• Set the function switch to the ΩCAP
•)))position.
• Insert the black test lead banana plug into the negative COM jack and the red test lead
banana plug into the positive V jack.
• Press the MODE key to switch the Diode functions.
• Forward voltage will typically indicate 0.400 to 3.000V. Reverse voltage will indicate
“OL”. Shorted devices will indicate near 0V and an open device will indicate “OL” in
both polarities.
8
Capacitance Measurements
WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all
capacitors before taking any capacitance measurements. Remove the batteries and unplug
the line cords.
• Set the rotary function switch to the ΩCAP
•)))position.
• Insert the black test lead banana plug into the negative COM jack. Insert the red test lead
banana plug into the positive V jack.
• Press the MODE key to switch the Capacitance functions.
• Read the capacitance value in the display.
Temperature Measurements
• Set the function switch to the TEMP (°C or °F) position.
• Insert the temperature probe into the input jacks, making sure to observe the correct
polarity.
• Read the temperature in the display.
• Press the MODE key to switch the Unit (°C or °F).
Flexible Coil Current Measurements
• Set the function switch to the Flexible coil position.
• Insert the black test lead banana plug into the negative COM jack. Insert the red test lead
banana plug into the positive V jack.
• Read the current in the display.
• Press the MODE key to switch the AC, DC and AC+DC current.
• Press the RANGE key to switch range. 1000mA, 10A, 30A, 40A, 100A, 300A, 400A, 1000A,
3000A.
DC Current Measurements
• Insert the black test lead banana plug into the negative COM jack.
• For current measurements up to 6000μA DC, set the function switch to the μA position
and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 600mA DC, set the function switch to the mA position
and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 10A DC, set the function switch to the 10A position and
insert the red test lead banana plug into the 10A jack.
• Press the MODE button to indicate “=” on the display.
• Read the current in the display.
AC Current Measurements
CAUTION: Do not make 10A current measurements for longer than 30 seconds. Exceeding
30 seconds may cause damage to the meter and/or the test leads.
• Insert the black test lead banana plug into the negative COM jack.
9
• For current measurements up to 6000μA AC, set the function switch to the yellow μA
position and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 600mA AC, set the function switch to the yellow mA
position and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 10A AC, set the function switch to the yellow 10A position
and insert the red test lead banana plug into the 10A jack.
• Press the MODE button to indicate “~” on the display.
• Read the current in the display.
AC+DC Current Measurements
CAUTION: Do not make 10A current measurements for longer than 30 seconds. Exceeding
30 seconds may cause damage to the meter and/or the test leads.
• Insert the black test lead banana plug into the negative COM jack.
• For current measurements up to 6000μA AC+DC, set the function switch to the yellow μA
position and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 600mA AC+DC, set the function switch to the yellow mA
position and insert the red test lead banana plug into the μA/mA jack.
• For current measurements up to 10A AC+DC, set the function switch to the yellow 10A
position and insert the red test lead banana plug into the 10A jack.
• Press the MODE button to indicate “~” on the display.
• Read the current in the display.
Using RANGE
Press the RANGE key to activate the manual mode and to disable the
Autorange function. The message “Manual Range” appears on the upper
left part of the display instead of “Auto Range”. In manual mode, press
the RANGE key to change measuring range: the relevant decimal point
will change its position. The RANGE key is not active in positions
•)))
%Temp °C °F 10A ~
= . In Autorange mode, the instrument selects the most
appropriate ratio for carrying out measurement. If a reading is higher
than the maximum measurable value, the indication “O.L” appears on
the display. Press and hold the RANGE key for more than 1 second to exit
the manual mode and restore the Autorange mode.
Hold and AutoHold Mode
To freeze the display for any function, press key HOLD.
And again press key HOLD to release freeze.
10
Capturing Minimum and Maximum Values
The MAX MIN Record mode captures minimum and maximum input
values. When the input goes below the recorded minimum value or above
the recorded maximum value, the meter beeps and records the new value.
This mode is for capturing intermittent readings, recording minimum and
maximum readings unattended, or recording readings while equipment
operation precludes watching the meter.
To activate the MAX MIN mode, press soft key labeled
3
. If the meter is
already in MAX MIN function, pressing
3
causes the Meter to turn off
MAX MIN function.
Relative Values
To activate the Relative mode, press the soft key labeled s.
If the meter is already in the relative function, pressing scauses the
meter to turn off Relative mode.
Capturing Peak Values
To activate the Peak mode, press the soft key labeled
4
.
If the meter is already in the peak function, pressing
4
causes the meter
to turn off Peak mode.
Non-Contact AC Voltage Detector (100 to 1000V AC)
WARNING: Risk of Electrocution. Before use, always test the Voltage
Detector on a known live circuit to verify proper operation.
WARNING: Insulation type and thickness, distance from the source, and
other factors may effect operation. Always verify live voltage using other
methods before working on electrical circuits.
• The non-contact voltage detector operates when the meter is set to
any measuring function. The detector does not operate when Auto
Power Off turns the meter off or when the rotary function switch is
set to the Off position.
• Slowly move the detector probe closer to the conductor being tested.
• If AC voltage within the specified range is present, the indicator light
will illuminate.
NOTE: The detector is designed with high sensitivity. Static electricity
and other sources of electrical energy may randomly activate the detec-
tor. This is normal operation. The detector only activates the indicator
light when AC voltage is present. It does not indicate the voltage level
on the LCD.
Indice
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