DIGITAL
MULTIMETER
Model LT17
OPERATOR'S MANUAL
General Specifications
Auto-off:
turns meter off after approx. 50 minutes
to extend battery life.
Indicators:
Continuity beeper (<100
W
). Low
battery. Overrange: "OL" is displayed.
Environmental:
Operating temperature 32°F to
122°F, storage 0°F to 140°F with batteries
removed, RH<70%.
Measurement rate:
2.5 times/sec nominal.
Battery life:
>200 hours typical with carbon zinc.
Battery type:
9V NEDA 1604 type
Functional Specifications
Accuracy specifications @ 74°F±8°F, relative
humidity less than 70%. Accuracy specified as
±% of reading ± number of least significant
digits.
DC Voltage
Ranges:
200mV, 2000mV, 20V, 200V, 600V.
Resolution:
100µV
Accuracy:
±(0.5%rdg + 1dgts)
Input impedence:
10M
W
AC Voltage (50Hz-500Hz)
Ranges:
200mV, 2000mV, 200V, 600V.
Resolution:
100µV
Accuracy:
200mv, 200mV range ±(1.2% + 4)
200V, 600V range ±(2% rdg + 4dgts)
Input impedence:
10M
W
Limited Warranty
This meter is warranted against defects in
material or workmanship for one year from
date of purchase. Fieldpiece will replace or
repair the defective unit, at its option, subject
to verification of the defect.
This warranty does not apply to defects
resulting from abuse, neglect, accident,
unauthorized repair, alteration, or
unreasonable use of the instrument.
ANY IMPLIED WARRANTIES ARISING
OUT OF THE SALE OF A FIELDPIECE
INSTRUMENTS PRODUCT, INCLUDING
BUT NOT LIMITED TO IMPLIED
WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED TO THE ABOVE.
FIELDPIECE SHALL NOT BE LIABLE FOR
LOSS OF USE OF THE INSTRUMENT OR
OTHER INCIDENTAL OR
CONSEQUENTIAL DAMAGES, EXPENSES,
OR ECONOMIC LOSS, OR FOR ANY
CLAIM FOR SUCH DAMAGE, EXPENSES,
OR ECONOMIC LOSS.
State laws vary. The above limitations or
exclusions may not apply to you. This
warranty gives you specific legal rights, and
you may also have other rights which vary
from state to state.
General Description
The LT17 measures temperature
(ambient air as well as pipes), capacitance
(motor start and motor run capacitors),
microamps (flame rectifier diode circuit), and
frequency (variable frequency motor
controls). In addition it measures volts
(AC&DC), resistance and has a continuity
beeper and diode check. The LT17 works
with all Fieldpiece accessories, when
connected with our deluxe test leads (ADL2).
For Your Safety...
Inspect the test leads for damage to the
insulation or exposed metal. Replace if
suspect. Never ground yourself when taking
electrical measurements. Do not touch
exposed metal pipes, outlets, fixtures, etc.,
which might be at ground potential. Keep
your body isolated from ground by using dry
clothing, rubber shoes, rubber mats, or any
approved insulating material. When
disconnecting from a circuit, disconnect the
"RED" lead first, then the common lead.
Work with others. Use one hand for testing.
Turn off power to the circuit under test before
cutting, unsoldering, or breaking the circuit.
Keep your fingers behind the finger guards
on the probes.
All voltage ranges will withstand up to
600VDC or 600VAC. Do not exceed 600VAC/
DC.
Disconnect the meter from the circuit
before turning any inductor off, including
motors, transformers, and solenoids. High
voltage transients can damage the meter
beyond repair. Do not use during electrical
storms.
Capacitance
Ranges:
200
m
F, 2K
m
F, 20K
m
F
Accuracy:
±(4% rdg + 10 dgts)
Test Voltage:
<3.5V
Test Frequency:
21Hz
AC Current
Ranges:
200µA, 20mA
Resolution:
100nA
Accuracy:
±(1.5% rdg + 1dgts)
Voltage burden:
250mV for 200µA range.
400mV for 20mA range.
DC Current:
Ranges:
200µA, 20mA
Resolution:
100nA
Accuracy:
±(1.0% rdg + 1 dgts)
Voltage burden:
250mV for 200µA range.
400mV for 20mA range.
Resistance (Ohms)
Ranges:
200
W
, 200K
W
, 20M
W
Resolution:
0.1
W
Accuracy:
200
W
, 200K
W
ranges
±(1.0% rdg + 4 dgts)
20M
W
range ±(2.0% rdg + 4 dgts)
Open circuit voltage:
0.3V (3V on 200
W
)
Continuity
Audible indication:
less than 100
W
Response time:
100ms
Frequency (auto ranging)
Range:
10Hz to 40KHz
Sensitivity:
3.5VRMS min.
Accuracy:
±(0.1% rdg + 3 dgts)
Diode test
Resolution:
1mV
Accuracy:
±(1.5% rdg + 1 dgt)
Test current:
1.0mA ± 0.6mA
Open circuit voltage:
3.0V typical
Overload Protection
V
AC
+ V
DC
200mV range
500VDC / 350VAC
for 15 sec
>200mV range
600VDC / 600VAC
A
AC
+ A
DC
0.5A / 500V
mA input
(6.35mmx32mm)
m
A input
model RFM74
Capacitance
0.1A / 250V
(5mmx20mm)
model RF16
Ohms (
W
)
500VDC / 500VAC
Diode
500VDC / 500VAC
Continuity
500VDC / 500VAC
Temperature
30 VAC, 60 VDC
Battery Replacement
The multimeter displays
to indicate
that the battery needs a replacement to
maintain proper operation.
Temperature (K-type T/C)
Range:
-30°F to 1000°F
Resolution
: 0.1°F
Accuracy:
±(1°F), 32°F to 120°F;
±(1%+1.5°F), -4°F to 750°F; ±(2%+3°F),
-30°F to -4°F & 750°F to 1000°F. ±(1°C),
0°C to 120°C; ±(1%+1°C),
0°F to 400°F; ±(2%+3°C), -
35°C to -0°C & 400°C to
600°C.
Ice bucket calibration
For accuracies of ± 1°F
(32°F to 120°F) calibrate the
LT17 to a known temperature.
A glass of stabilized ice water is
very close to 32°F and is
usually very convenient.
1. Remove back of the meter. Hold the
battery in place with a rubber band.
2. Stabilize a large cup of ice water.
3. Select the °F range on the LT17.
4. Immerse the probe and let it stabilize.
5. Adjust VR2 until the read out is within 2°F
of the specified 32°F. Then adjust VR3
until the meter reads within 0.1°F of 32°F.
Display
o
C or
o
F
1. Locate the pins above/right of VR3.
2. Short (jumper) pins to display
o
C.
DO NOT APPLY VOLTAGE TO THE
CAPACITANCE JACK OR THE
CURRENT JACK. Even low voltages
can cause a current overload and blow
a fuse. Replace blown fuse to regain
function.
Disconnect the thermocouple when
measuring voltage.
DISCONNECT TEST LEADS WHEN
MEASURING TEMPERATURE.
!
WARNINGS
VR2
VR3
VR1
