Triplett 1401 - Manual (Page 2)

7. Operating Instructions
7-1 Before Operation
7-1-1 Check battery. If the battery voltage is low, the symbol will appear
on the LCD display. Replace by removing the (2) screws in the rear
panel and lifting the battery cover up.
7-1-2 The near the input jacks warns of limitations in the input voltage
and current. DO NOT EXCEED THESE LIMITS.
7-1-3 The rotary switch should be positioned to the proper function and
measurement range BEFORE connecting the test leads to the circuit.
7-2 Measuring DC Voltage
7-2-1 Connect the black test lead to COM jack and red lead to VΩmA jack.
7-2-2 Set the rotary switch to the desired “V ” range position.
7-2-3 Observing polarity, connect test leads across the circuit component(s)
under measurement and read the voltage from the LCD.
NOTE:
1. When the quantity to be measured is unknown, set the rotary switch to its
highest DC voltage range before connecting the test leads to the circuit.
2. When only “1” or “-1” is displayed, it indicates “over range”. Either select
a higher measurement range or do not continue to measure.
3. Although the meter may measure voltages higher than 600V, it may be
damaged or pose a shock hazard or other injury to the user.
4. Use caution when measuring high voltages (>60V DC or >30V AC).
7-3 Measuring AC Voltage
7-3-1 Connect the black test lead to COM jack and red lead to VΩmA jack.
7-3-2 Set the rotary switch to the desired “V ” range position.
7-3-3 Observing polarity, connect test leads across the circuit component(s)
under measurement and read the voltage from the LCD.
NOTE:
1. When the quantity to be measured is unknown, set the rotary switch to its
highest AC voltage range before connecting the test leads to the circuit.
2. When only “1” or “-1” is displayed, it indicates “over range”. Either select
a higher measurement range or do not continue to measure.
3. Although the meter may measure voltages higher than 600V, it may
be damaged or pose a shock hazard or other injury to the user.
4. Use caution when measuring high voltages (>60V DC or >30V AC).
7-4 Measuring DC Current
7-4-1 Connect the black test lead to COM jack and red lead to the VΩmA
jack for a maximum 800mA current. For a maximum 10A current,
move the red lead to the 10A jack.
7-4-2 Set the rotary switch to the desired “A ” range position. You can
press the RANGE button to switch between measurement ranges
manually, or leave the meter in “ Auto” range mode.
7-4-3 Observing polarity, connect test leads in series with the load under
measurement.
7-4-4 Read current from the LCD.
NOTE:
1. When the quantity to be measured is unknown, be sure that the meter
is in “Autorange” mode and consider whether to use the 800mA or 10A
input jack before connecting test leads to the circuit.
2. When only “1” or “-1” is displayed, it indicates “over range”. Either select
a higher measurement range or do not continue to measure.
3. Current above 800mA on the VΩmA jack will blow the fuse. The 10A jack
fused at 10A. Do not apply more than 10A and do not apply 10A for
longer than 10 seconds. Allow a 15 minute cooldown.
4. If fuse blows, remove meter from circuit under test. Replace fuse by
removing the rear cover (2 screws) to access fuse.
Frequency
Range Accuracy Resolution
Thermocouple: NiCr-NiSi K-type (supplied)
Overload protection: Fast Acting 800mA / 500V fuse
AC Current
Range Resolution
600µA 0.1µA
6000µA 1µA
60mA 10µA
600mA 100µA
6A 1mA
10A 10mA
Accuracy
±(1.5% of rdg + 3 digits)
±(2.5% of rdg + 5 digits)
Overload protection: Fast Acting 800mA / 500V fuse, 10A / 500V fast fuse, 10A <
10 seconds
Frequency Range: 40 to 400Hz
Resistance
Range Resolution
600Ω 0.1Ω
6kΩ 1Ω
60kΩ 10Ω
600kΩ 100Ω
6MΩ 1kΩ
60MΩ 10kΩ
Overload protection: 500V AC / DC
Accuracy
±(1.0% of rdg + 2 digits)
±(1.5% of rdg + 3 digits)
±(1.0% of rdg + 3 digits)
Capacitance test
Range Accuracy Resolution
9.999nF ±(3.0% of rdg+ 10 digits) 1pF
99.99nF
999.9nF
9.999μf
99.99μf
999.9μf
9.999mF
99.99mF
±(2.5% of rdg+ 5 digits)
±(5.0% of rdg+ 10 digits)
±(10.0% of rdg+ 10 digits)
10pF
100pF
1nF
10nF
1µF
10µF
99.99mF
9.999Hz
99.99Hz
999.9Hz
9.999kHz
99.99kHz
999.9kHz
9.999MHz
0.001Hz
0.01Hz
0.1Hz
1Hz
10Hz
100Hz
1kHz
±(0.1% of rdg+ 5 digits)
-- Sensitivity: sine wave 0.6V rms (9.999MHz: 1.5V RMS)
-- Overload protection: 500V DC or AC RMS
Duty Cycle
Range Accuracy Resolution
9.999KHz ±(2.0% of rdg+ 2 digits) 0.1%
-- Sensitivity: sine wave 0.6V RM
Temperature
Accuracy Range
°C
°F
-20~150°C ± ( 3°C+ 1 digit )
150~1000°C ± ( 3% of rdg + 2 digits )
-4~302°F ± ( 5°F+ 2 digits )
302~1832°F ± ( 3%+ 3 digits )
Resolution
1°C
1°F
Battery test
Range Accuracy Load current Resolution
Approx. 50mA
Approx. 10mA 1mV
10mV
±(5.0% of rdg+5 digits)
Overload protection: Fast Acting 800mA / 500V fuse
Diode test
Range Description Resolution
Forward voltage drop of
diode
1mV
Continuity test
Range Description Function
0 to 2000Ω Buzzer sounds if resis-
tance is less than 50Ω
Overload protection: 500V AC / DC
Open circuit voltage: Approximately 1V
Overload protection: 500V AC / DC
Test Current: Approximately 1.5mA
Open Circuit Voltage: Approximately 3.2V
Noncontact Voltage Detection
Range Description Function
NCV AC Voltage field, 90V –
1000V RMS Press & Hold
NCV button to activate
Buzzer sounds and red
LED lights if AC electric
field detected