190 TPI (Test Products Int), 190 Datasheet - Page 11

• Manufacturer Part Number: 190
• Description: DMM AUTO-RANGE W/BOOT IND HVAC
• Manufacturer: TPI (Test Products Int)
• Series: 190r
• Type: Digital (DMM)r

Specifications of 190

• Lead Free Status: Contains lead
• Includes: Battery, Test Leads
• Style: Handheld
• Display Digits: 4.75
• Display Type: LCD, Bar Graph
• Display Count: 50000
• Function: Voltage, Current, Resistance, Capacitance, Frequency
• Functions, Extra: Continuity, Diode Test
• Features: Auto Off, Backlight, Hold, Min/Max, RS-232 Port, Sleep
• Ranging: Auto/Manual
• Response: True RMS
• Other names: 190TPI

19
b. Measuring AC Volts
Instrument set-up:
FUNCTION
CAUTION
Do not attempt to make a voltage measurement if a test
lead is plugged in the A or umA input jack. Instrument
damage and/or personal injury may result.
Do not attempt to make a voltage measurement of more
than 750V(1000V-Only 194) or of a voltage level than is
unknown.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into
3. Plug red test lead into the
4. Set the rotary switch to the
5. Connect test leads to circuit to be measured.
6. Reconnect power to circuit to be measured.
7. Read the voltage on the LCD.
voltage to be easured.
WARNING!
BLACK
TEST LEAD TEST LEAD
COM
RED
COM
MINIMUM
READING
0.0001V
input jack.
function depending on the
input jack.
MAXIMUM
READING
750.0V
1000V(Only 194)
c. Measuring DC Amps
Instrument set-up:
FUNCTION
CAUTION
Do not attempt to make a current measurement with the
test leads connected in parallel with the circuit to be
tested. Test leads must be connected in series with the
circuit.
Do not attempt to make a current measurement of circuits
with more than 600V(1000V-Only 194) present. Instrument
damage and/or personal injury may result.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the
3. Plug red test lead into the
4. Set the rotary switch to the
5. Connect the test leads in series to the circuit to be
6. Reconnect power to circuit to be measured.
7. Read the current on the LCD.
depending on the value of current to be measured.
measured.
WARNING!
BLACK
TEST LEAD
COM
COM
mA
A
RED
TEST LEAD
COM
or
MINIMUM
READING
or
0.001mA
0.0001A
input jack.
input jack
function.
10.000A
MAXIMUM
READING
500.00mA
20