EasyManua.ls Logo

Fieldpiece LT17 - User Manual

Fieldpiece LT17
2 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
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 (<100W ). 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: 10MW
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: 10MW
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 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: 200mF, 2KmF, 20KmF
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: 200W, 200KW , 20MW
Resolution: 0.1W
Accuracy: 200W , 200KW ranges
±(1.0% rdg + 4 dgts)
20MW range ±(2.0% rdg + 4 dgts)
Open circuit voltage: 0.3V (3V on 200W )
Continuity
Audible indication: less than 100W
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)
mA 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
Question and Answer IconNeed help?

Do you have a question about the Fieldpiece LT17 and is the answer not in the manual?

Summary

General Description

LT17 Multimeter Overview

Introduces the LT17 multimeter and its core measurement capabilities.

Key Measurement Capabilities

Lists functions: temperature, capacitance, microamps, frequency, AC/DC volts, resistance.

Critical Safety Notices

Highlights essential safety warnings for operating the multimeter.

Functional Specifications

DC Voltage Specifications

Details DC voltage ranges, resolution, accuracy, and input impedance.

AC Voltage Specifications

Details AC voltage ranges, resolution, accuracy, and input impedance.

Capacitance Specifications

Details capacitance ranges, accuracy, test voltage, and frequency.

AC Current Specifications

Details AC current ranges, resolution, accuracy, and voltage burden.

DC Current Specifications

Details DC current ranges, resolution, accuracy, and voltage burden.

Resistance Specifications

Details resistance ranges, resolution, accuracy, and open circuit voltage.

Continuity & Diode Test

Covers continuity indication, response time, diode test resolution, accuracy.

Frequency Specifications

Details frequency range, sensitivity, and accuracy.

Overload Protection

Specifies maximum voltage/current limits for overload protection.

Temperature Specs & Calibration

Covers temperature ranges, accuracy, calibration, and display units.

Safety Guidelines

General Safety Precautions

Inspect leads, avoid grounding, use insulating materials for safety.

Voltage Limit Warning

States all voltage ranges withstand up to 600VDC or 600VAC.

Transient Handling

Disconnect meter from circuit before turning off inductors to prevent damage.

Limited Warranty

Warranty Coverage

Covers defects in material/workmanship for one year from purchase.

Warranty Exclusions

Excludes defects from abuse, neglect, accident, or unauthorized repair.

How To Use Your Multimeter

Measuring Voltage

Illustrates the process for measuring voltage with the multimeter.

Measuring Current

Explains how to measure AC and DC current using the meter.

Measuring Capacitance

Demonstrates how to measure capacitance using the multimeter.

Measuring Frequency

Shows the procedure for measuring frequency with the multimeter.

Measuring Resistance

Illustrates the process for measuring resistance with the meter.

Measuring Temperature

Explains how to measure temperature using the multimeter.

Selecting Measurement Ranges

Guidance on choosing appropriate ranges for accurate measurements.

Accessory Heads and Usage

Optional Accessory Heads

Describes how accessory heads convert parameters to millivolt signals.

Connecting Accessories

Details using Fieldpiece test leads or handle/adaptor for connection.

Service and Maintenance

Obtaining Service

Information on how to obtain service for the multimeter.

User Maintenance

Guidelines for user maintenance of the multimeter.

Overview

The Fieldpiece Model LT17 is a digital multimeter designed for a wide range of electrical and environmental measurements. Its primary function is to measure temperature, capacitance, microamps, frequency, AC/DC voltage, and resistance, while also featuring a continuity beeper and diode check. The LT17 is compatible with all Fieldpiece accessories when used with the deluxe test leads (ADL2), expanding its versatility for various applications.

For temperature measurement, the LT17 can read both ambient air and pipe temperatures. When measuring temperature, it's crucial to ensure the thermocouple maintains good contact with the object being measured and that the temperature is stable. The meter offers settings for both 200°F and 1000°F, providing either 0.1°F or 1°F resolution, respectively. It's important to avoid connecting the thermocouple to voltages exceeding 30VDC or 42V P-P. A key safety precaution is to remove the thermocouple when taking voltage measurements and to disconnect the test leads when measuring temperature. The manual also provides instructions for ice bucket calibration to achieve high accuracy for temperature readings between 32°F and 120°F. This involves stabilizing ice water, immersing the probe, and adjusting potentiometers (VR2 and VR3) until the readout is within 0.1°F of 32°F. The display can be toggled between Celsius and Fahrenheit by shorting specific pins.

Capacitance measurement is another core function, useful for checking motor start and run capacitors. When measuring capacitance, it is critical not to apply voltage to the capacitance jack, as even low voltages can cause a current overload and blow a fuse, requiring replacement to restore function.

The LT17 offers two methods for current measurement. For high currents, users should employ the Fieldpiece ACH (or any other current clamp that converts amps to millivolts), setting the multimeter to read AC millivolts. For measuring microamps or milliamps, the "com" jack and the "mA" jack on the lower left should be used. It is explicitly stated not to attempt to measure currents over 20mA through the meter's direct current jacks. As with capacitance, applying voltage to the current jack can blow a fuse.

Frequency measurement is available for tasks such as checking variable frequency motor controls. The device also performs standard AC/DC voltage and resistance measurements, along with a continuity check that provides an audible indication for resistances less than 100 ohms, and a diode test.

Usage features emphasize safety and proper range selection. When selecting ranges, users should choose a range just above the expected value. If the display shows "OL" (overload), a higher range should be selected. Conversely, if fewer than three numbers are displayed, a lower range should be chosen for better resolution. Users must select AC or DC voltage and amperage ranges as appropriate for the measurement.

Safety warnings are prominent throughout the manual. Users are advised to inspect test leads for damage before use and replace them if suspect. Grounding oneself during electrical measurements should be avoided, and exposed metal parts of pipes, outlets, or fixtures that might be at ground potential should not be touched. Maintaining isolation from ground using dry clothing, rubber shoes, or other approved insulating materials is crucial. When disconnecting from a circuit, the red lead should be disconnected first, followed by the common lead. Working with one hand for testing is recommended, and power to the circuit under test should be turned off before cutting, unsoldering, or breaking the circuit. Fingers should be kept behind the finger guards on the probes. All voltage ranges can withstand up to 600VDC or 600VAC, and users must not exceed 600VAC/DC. The meter should be disconnected from the circuit before turning off any inductor, including motors, transformers, and solenoids, as high voltage transients can damage the meter. The device should not be used during electrical storms.

Maintenance features include battery replacement instructions. The multimeter displays a battery icon to indicate when the battery needs to be replaced to maintain proper operation. The device uses a 9V NEDA 1604 type battery, offering over 200 hours of typical life with carbon zinc. The auto-off feature, which turns the meter off after approximately 50 minutes, helps extend battery life. For service, the meter should be sent freight prepaid to Fieldpiece Instruments. For warranty service, proof of purchase date and location must be included. Out-of-warranty service incurs a fee, and the meter will be repaired or replaced at Fieldpiece's option. All repairs must be performed by a factory service center.

Fieldpiece LT17 Specifications

General IconGeneral
CategoryMultimeter
ModelLT17
BrandFieldpiece
Display TypeDigital
Safety RatingCAT III 600V
Auto Power OffYes
BacklightYes
Data HoldYes
ContinuityYes
Diode TestYes
Voltage Range600V AC/DC
Current Range10A AC/DC
Capacitance Range100μF
Temperature Range-40°C to 1000°C
Battery Type9V
Operating Temperature32°F to 122°F (0°C to 50°C)

Related product manuals