Fieldpiece LT17A User manual

DIGITAL MULTIMETER
Model: LT17A
OPERATOR’S MANUAL
General description
The LT17A is designed for the HVAC/R techni-
cian. The LT17A meter measures current, resist-
ance, voltage, capacitance, frequency, continuity,
and temperature. Test leads store within the meter
and can connect the LT17A to Fieldpiece accesso-
ry heads. The body is made out of durable ABS
plastic and comes with a bright blue backlight for
poorly lit test areas. Get great accuracy with the k-
type thermocouple and easily accessible temp. pot.
User maintenance
Battery Replacement: When the multimeter dis-
plays the " " the battery must be replaced to
maintain proper operation. To prevent electrical
shock, turn off the meter and disconnect leads
before removing the back cover.
Fuse Replacement: When only certain ranges
quit working, check the fuse. Open the case and
replace according to the Overload Protection chart.
All other repairs must be performed by a
Fieldpiece service center
Obtaining service
Check the fuse, then call Fieldpiece for an RMA#
and send freight prepaid to Fieldpiece.
For warranty service, include proof of purchase
date. For out of warranty service, include a check or
money order for $47 (meter only). We will pay for
the shipping to you using the same method used to
ship the product to us (ground, air, next day, etc.) .
For your safety...
General: 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 materi-
al. When disconnecting from a circuit, disconnect the
"RED" lead first, then the common lead. Work with oth-
ers. Use one hand for testing. Turn off power to the cir-
cuit under test before cutting, unsoldering, or breaking
the circuit. Keep your fingers on the plastic and behind
the ridge of the probes.
All Voltage Tests: All voltage ranges will with-
stand up to 600VAC or 600VDC. Do not apply more
than 600VDC or 600VAC.
AC Tests: Disconnect the meter from the circuit
before turning any inductor off, including motors,
transformers, and solenoids. Hi voltage transients
can damage the meter beyond repair. Do not use
during electrical storms.
Safety: Designed to meet IEC 61010-1
(EN61010-1), CATIII 600V, Class II, pollution deg.2,
indoor use and complies with CE.
Symbols used:
Caution, refer to manual.
Ground
Double insulation
Overload protection
Fieldpiece Instruments, Inc.
580 West Central Ave. Suite A
Brea, CA 92821
Phone: [phone] Fax: [phone]
www.fieldpiece.com
MAX
MI N
General specifications
Auto-off: off after 25 minutes to extend battery.
Indicators: Continuity beeper (<100Ω). Low bat.
Overrange: "OL" or “-OL” is displayed.
Operating environment: 32°F to 122°F <70%RH
Storage environment (with batteries removed):
-4°F to 140°F <80%RH
Altitude: 6561.7 feet (2000m).
Battery life: 150 hours typical.
Battery type: 9V NEDA 1604 type
Stated accuracies: 74°F±8°F, 75%RH
Temperature coefficient: 0.1 x (specified accura-
cy)/1°F (32°F to 66°F, 82°F to 122°F)
DC voltage
Ranges: 200mV, 2000mV, 20V, 200V, 600V
Resolution: 0.1mV
Accuracy: 0.5%±1
Input impedence: 10MΩ
AC voltage (50Hz-500Hz)
Ranges: 200mV, 2000mV, 20V, 200V, 600V
Resolution: 0.1mV
Accuracy: 1.2%±4(200mV to 20V ranges),
2%±4(200V and 600V ranges)
Input impedence: 10MΩ
DC Current (through meter)
Ranges: 200μA, 20mA, 200mA
Resolution: 0.1μA
Accuracy: 1.0%±1
Voltage burden: 800mV
AC Current (through meter)
Ranges: 200μA, 20mA, 200mA
Resolution: 0.1μA
Accuracy: 1.5%±4
Voltage burden: 800mV
Frequency (autoranging)
Range: 10Hz to 40KHz
Resolution: 1Hz
Sensitivity: 3.5V rms min
Accuracy: 0.1%± 3
Resistance (ohms)
Ranges: 200Ω, 2kΩ, 200kΩ, 20MΩ
Resolution: 0.1Ω
Accuracy: 1.0%±4 (200Ωto 200kΩranges),
2.0%±4 (20MΩrange)
Open circuit voltage: 0.3VDC typical, (3.0VDC
on 200Ω)
Diode test
Accuracy: 1.5%±3
Test current: 1.0mA approx.
Open circuit voltage: 3.0VDC typical
Capacitance (MFD)
Ranges: 200μF, 2kμF, 20kμF
Resolution: 0.1μF
Accuracy: 4%±10
Test frequency: 21Hz
Test voltage: <3.0V
Temperature
Ranges: -30°F to 1400°F
Resolution: 0.1°F
Accuracy: ±(1°F) 32°F to 120°F,
±(1.0%+1.5°F) -4°F to 750°F,
±(3.0%+4°F) -30°F to -4°F and 750°F to 1400°F
Sensor type: K-type thermocouple
Field calibration (temp offset pot)
The LT17A can be easily calibrated on the job.
Use a bucket of ice water to have a known 32°F
temperature. With the thermocouple in the ice
water, adjust the TEMP OFFSET pot on the face of
the meter until it reads 32.0.
MAX/MIN
Record the minimum or maximum reading during
a measurement. To exit the MIN/MAX function, hold
the button for more than 2 seconds.
Backlight
Always be very careful when testing in the dark.
You should always have a separate light on the
area you are testing. The backlight will shine for 4.5
minutes when the backlight button is pressed.
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 INSTRUMENT’S
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 INSTRU-
MENT OR OTHER INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES, EXPENSES, OR ECONOMIC LOSS,
OR FOR ANY CLAIM FOR SUCH DAMAGE, EXPENS-
ES, 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.
>200mV range 600VAC/DC rms
Temperature 30VAC/DC rms
Frequency 500VAC/DC rms
Resistance 500VAC/DC rms
Diode Test 500VAC/DC rms
Continuity 500VAC/DC rms
VAC/DC
AAC/DC
Capacitance
600VAC/DC rms
for 15 sec
0.25A/500V fuse
(6.3X32mm)
model RFM66
0.25A/500V fuse
(6.3X32mm)
model RFM66
200mV range
!

VW
COM
How To Use Your Multimeter For DC voltage and currents, set the meter to the DC parameter instead of AC as shown to the left. For all ranges and functions choose range just above value
you expect. If display reads "OL” or “-OL" (overload), select a higher range. If display shows less than three numbers, select a lower range for better resolution.
Voltage Amps Microamps Resistance & Continuity Beeper
COM
mA
COM
mA
COM
VΩ
COM
VΩ
CAT
.III
300V
400A
CLAMP
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
COM
VW
Optional accessory heads
Fieldpiece accessory heads convert the desired
parameter into a millivolt signal. For example, the
ARH4 converts one °F into one milli-volt DC. The
multimeter must then be set to read millivolts DC.
One exception is the ACH4 current clamp which
must be set to read AC millivolts. Any digital multi-
meter with these scales can be used in conjunction
with Fieldpiece Accessory Heads.
Use Fieldpiece deluxe silicone test leads
(model# ADLS2) with removable probe tips to use
the accessory heads with the LT17A.
Air Velocity
& Temperature
Head English
READLOBATT
ON
LCDX
100
Average
(16sec)
Metric Real
time
AAV3
AUTO-
OFF
English Metric
Ft/min M/s
KM/hrMPH
ºF ºC
OFF
COM
MFD
CAT.III
300V
400A
CLAMP
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
AUTO-
OFF
T/C
Cal
STABLE
Pressure
Temp
SH or SC
ON
LOBATT
Air
Conditioner
Superheat
and Subcooling
ENGLISH
METRIC
R22
R410A
Set
ATM
ASX14
SH
SC
Frequency AC current clamp
(ACH4 sold separately) Capacitance (MFD)