Isotech LCR 1705 User manual

Instruction Manual
LCR 1705 / 1707
Smart tweezers LCR Tester
EN

LCR 1707

1
Warning
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Safety sheet
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 Read First
Safety Information
Understand and follow operating instructions carefully.
Use the meter only as specified in this manual; otherwise,
the protection provided by the meter may be impaired.

 WARNING
This Identifies hazardous conditions and actions that could
cause BODILY HARM or DEATH
˙When using test leads, keep your fingers behind the finger
guards.
˙Always use proper test probes for measurements.
˙Discharge all high-voltage capacitors before testing.
˙Do not use meter around explosive gas or vapor.
˙To reduce the risk of fire or electric shock do not expose
this product to rain or moisture.
˙Do not touch any circuits or parts of circuits if there may be
30VAC rms or 30 VDC on them.
˙Be careful of the test probes, which are sharp and dangerous.
CAUTION
This identifies conditions and actions that could DAMAGE the
meter or equipment under test.
˙Never connect a source of voltage to the meter. That may be
damage the meter.
˙Discharge all capacitors before testing.
˙Do not expose meter to extremes in temperature or high
humidity.
˙Do not drop the meter. That maybe damage the meter or
cause out of specification.
˙Never use unspecified adaptor to charge meter.
˙Do not continue to charge more than 8 hours to prevent the
battery damage.
Warning Safety sheet

2
Risk of electric shock
AC measurement
DC measurement
Battery
Fuse
Earth
Equipment protected by double or reinforced
insulation
Conforms to EU directives
Do not discard this product or throw away.
See instruction manual
Symbols as marked on the Meter and Instruction
manual
Maintenance
Do not attempt to repair this Meter.
It contains no user serviceable parts. Repair or servicing should
only be performed by qualified personnel.
Cleaning
Periodically wipe the case with a dry cloth and detergent.
Do not use abrasives or solvents.

3
Meter Description
1. Test probes
2. Push buttons for features
3. LCD display: 20,000 counts
4. Mini USB plug for charge &
connect to PC
Assembly
1. USB cable
2. AC adaptor (for 1707)
3. L Type Test probes & special screws x 4 (for 1707)
4. Software CD (for 1707)
5. Contact Holder

4
Measuring Principle




tan
D
1
Q
RXX
tan
C
1
fC2 1
X
LfL2X
RXX
tan)X(XRZ
)Xj(XRE
CL
1
C
L
CL
1
CL
2
CL
























Series Measuring
Parallel Measuring

5
Phase Drawing
The phasor is a constant complex number, usually expressed
in exponential form, representing the complex amplitude
(magnitude and phase) of a sinusoidal function of time.
When θ(phase) > 0°
Then Z (impedance) is
Capacitive reactance
When θ(phase) < 0°
Then Z (impedance) is
Inductive reactance
When θ(phase) = 0°
Then Z (impedance) is
Resistance

6
Making Basic Measurements
Discharge the DUT (Device Under Test) before connecting the
test probes. The figures on the following pages show how to
make basic measurements.
Preparation and Caution Before Measurement
Observe the rules of WARNING and CAUTION
Power On/Off
Press the central power button to turn on. Press and hold the
power button > 2 sec to turn off.
Auto Power Off
If there is no any action in the meter, then the meter will
automatically turn off to save the power of battery. The default
APO time is 10 minutes.
Backlight
When the meter is turned on, the backlight will be turned on
automatically. Press the central power button to turn on/off the
backlight.

7
Measuring L/C/R
The auto test mode is the default mode when the meter is
turned on. When the meter in auto test mode, it will automati-
cally detect the DUT and show the suitable result on the dis-
play.
˙In auto test mode, press the AUTO L/C/R button to enter
manual test mode.
˙In manual test mode, press the AUTO L/C/R button to
select measuring function.
˙To return the auto test mode, press and hold the AUTO
L/C/R button > 2 sec.
Measuring D/Q/θ/DCR
The meter can measure D (dissipation factor), Q (quality
factor), θ(phase) and DCR (DC resistance) on the DUT.
˙Press the D/Q/θ/DCR button to enter D/Q/θ/DCR test mode.
˙In D/Q/θ/DCR test mode, press the D/Q/θ/DCR button to
select measuring function.

8
Select Test Frequency
The default test frequency is 1kHz when the meter is turned on.
Press the Cal/Hz button to select the test frequency.
Open/Short Calibration
In order to achieve the best measuring result, the calibration
has to be done before measuring the DUT. To calibrate the
meter, press and hold the Cal/Hz button > 2 sec.
about 15 sec
"OPEn" blinks
When “OPEn” appears on the display, make the test probes
open, and press the Cal/Hz button to start open calibration.
During open calibration, the “OPEn” blinks on the display.
About 15 seconds later, the result of the open calibration
appears on the display. If the result shows "PASS", press the
Cal/Hz button to next step. If the result shows "FAIL", press the
Cal/Hz button to exit calibration mode.

9
about 15 sec
"Srt" blinks
When “Srt” appears on the display, make the test probes short
closely, and press the Cal/Hz button to start short calibration.
During short calibration, the “Srt” blinks on the display. About 15
seconds later, the result of the short calibration appears on the
display. If the result shows "PASS", press the Cal/Hz button to
finish calibration. If the result shows "FAIL", press the Cal/Hz
button to exit calibration mode.

10
Hold
Press the Δ/H button to enter the hold mode. The meter holds the
last reading and shows the indication “H” on the display. Press
the Δ/H button again to exit the hold mode.
Relative Δ
Press and hold the Δ/H button > 2 sec to start the relative mode.
The meter stores the last reading as reference and shows the
indication “Δ” on the display. In this mode, the meter deducts
the reference from each reading, and shows the result on the
display. If the result is negative, the “Er” appears on the display.
Press the Δ/H button > 2 sec to exit this mode.

11
Charge
There is a Li-ion battery as power source in the meter. When
the battery indicator shows low battery, charge the meter as
soon as possible. When battery charge complete, the battery
indicator will show full level on the display.
˙Always use the typical mini USB plug adaptor to charge.
˙Do not continue to charge more than 8 hours to prevent the
battery damage.
Connect to PC
PC
PC
The meter can connect to PC by USB cable. Follow the below
steps to setup.
1. Connect PC and meter by USB cable.
2. Turn on the meter power.
3. Insert the software CD to CD-ROM of PC.
4. Install the driver and software.
5. Start the software and communicate with meter.

12
General Specifications
Display : 20,000 counts
Polarity Indication :
Automatic, positive implied, negative indicated.
Over Range Indication : OL
Measuring Rate : 2.5 samples per second
Internal Power Requirements : 3.7V / 400mAh Li-ion Battery
External Power Requirements : USB plug or AC Adapter
Battery Life : 20 hours typical (no backlight)
Battery Charge Cycle : 2 hours typical
Low Battery Voltage : 3.8V
Auto Power Off : Default 10 minutes.
Operating Ambient :
0°C to 30°C (< 85% RH),
30°C to 40°C (< 75% RH),
40°C to 45°C (< 45% RH)
Storage Temperature :
-20°C to 60°C, 0% RH to 80% RH (batteries not fitted)
Temperature Coefficient :
0.1 x (Specified Accuracy) / °C, < 18°C or > 28°C
Operating Altitude : 6561.7ft (2000m)
Calibration Cycle : 1 time per year
Weight : 70g
Dimensions (H x W x L) : 23 x 38 x 168 (mm)
EMC : EN 61326-1, EN 61326-2, EN 61000-4
Pollution Degree : 2
Shock Vibration : MIL-PRF-28800F for a class 2 instrument
Indoor Use.

13
Electrical Specifications
˙Accuracy is ± (% of reading + LSD)
˙Ambient temperature: 23°C ± 5°C (< 80% RH)
Test Frequency
Model Frequency Accuracy
1705/1707
± 0.2%
1707 100kHz
100Hz
120Hz
1kHz
10kHz
Test Signal
AC Signal Level: 600mVrms
AC Signal Accuracy: ± 20%
DC Bias Level: 800mV
DC Bias Accuracy: ± 10%
When measuring by basic accuracy that following conditions
must be met:
˙Ambient temperature: 23°C ± 5°C (< 80% RH)
˙Open and short calibration have been performed.
˙D ≤0.1 for C, L measurements; Q ≤0.1 for R measurements.
˙Do not measure when charge by AC adaptor. It may cause
the reading rolling.
˙See the operation manual for additional conditions.
D & Q
Definition: Q = 1/D = tanθ
Range: 2.000 to 2000
Minimum Resolution: 0.001
Accuracy: ± (0.5% + 5) x (1+D), when D < 1 or Q > 1
θ
Definition: θ= tan-1Q
Range: -90.0° to 90.0°
Minimum Resolution: 0.1°
Accuracy: ± (0.5% + 5)

14
Inductance
Range 100Hz
120Hz 1kHz 10kHz 100kHz
20.000uH N/A N/A N/A 0.5% + 30 [1]
200.00uH N/A N/A 0.5% + 30 [1] 0.5% + 5
2000.0uH N/A 0.5% + 30 [1] 0.5% + 5 0.5% + 5
20.000mH 0.5% + 30 [1] 0.5% + 5 0.5% + 5 1.0% + 5
200.00mH 0.5% + 5 0.5% + 5 0.5% + 5 N/A
2000.0mH 0.5% + 5 0.5% + 5 1.0% + 5 [2] N/A
[1] Accuracy is specified after subtract of the offset inductance.
[2] < 50dgt rolling.
[3] If D > 0.1, the accuracy should be multiplied by .
2
1D
Capacitance
Range 100Hz
120Hz 1kHz 10kHz 100kHz
200.00pF N/A N/A 2.0% + 1pF [1] 2.0% + 1pF [1][2]
2000.0pF 0.5% + 8 [1] 0.5% + 8 [1] 0.5% + 8 [1] 0.5% + 8 [1]
20.000nF 0.5% + 5 0.5% + 5 0.5% + 5 0.5% + 5
200.00nF 0.5% + 5 0.5% + 5 0.5% + 5 1.0% + 5
2000.0nF 0.5% + 5 0.5% + 5 1.0% + 5 N/A
20.000uF 0.5% + 5 1.0% + 5 N/A N/A
200.00uF 1.0% + 5 N/A N/A N/A
[1] Accuracy is specified after subtract of the stray capacitances for
test leads.
[2] < 50dgt rolling.
[3] If D > 0.1, the accuracy should be multiplied by .
2
1D

15
Resistance
Range 100Hz
120Hz 1kHz 10kHz 100kHz
20.000ΩN/A 0.5% + 50 [1] 0.5% + 50 [1] 0.5% + 50 [1]
200.00Ω0.5% + 8 [1] 0.5% + 8 [1] 0.5% + 8 [1] 0.5% + 8 [1]
2.0000kΩ0.5% + 5 0.5% + 5 0.5% + 5 0.5% + 5
20.000kΩ0.5% + 5 0.5% + 5 0.5% + 5 1.0% + 5 [2]
200.00kΩ0.5% + 5 0.5% + 5 1.0% + 5 [2] N/A
2.0000MΩ0.5% + 5 1.0% + 5 [2] N/A N/A
20.000MΩ1.0% + 5 [2] N/A N/A N/A
[1] Accuracy is specified after subtract of the offset resistance.
[2] < 50dgt rolling.
[3] If Q > 0.1, the accuracy should be multiplied by .
2
1Q
DC Resistance
Range Resolution Accuracy
200.00Ω10mΩ0.5% + 8 [1]
2.0000kΩ100mΩ0.5% + 5
20.000kΩ1Ω0.5% + 5
200.00kΩ10Ω0.5% + 5
2.0000MΩ100Ω0.5% + 5
20.000MΩ1kΩ1.0% + 5
200.00MΩ10kΩ2.0% + 5 [2]
[1] Accuracy is specified after subtract of the offset resistance.
[2] < 50dgt rolling.

16
Limited Warranty
This meter is warranted to the original purchaser against
defects in material and workmanship for 3 years from the date
of purchase. During this warranty period, RS Components will,
at its option, replace or repair the defective unit, subject to
verification of the defect or malfunction.
This warranty does not cover fuses, disposable batteries, or
damage from abuse, neglect, accident, unauthorized repair,
alteration, contamination, or abnormal conditions of operation
or handling.
Any implied warranties arising out of the sale of this product,
including but not limited to implied warranties of merchantabil-
ity and fitness for a particular purpose, are limited to the
above. RS Components 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 or
claims for such damage, expense or economic loss. Some
states or countries laws vary, so the above limitations or
exclusions may not apply to you. For full terms and conditions,
refer to the RS website.

Asia
Iso-Tech
460 Alexandra Road, #15-01A
PSA Building
Singapore 119963
Europe
Iso-Tech
PO Box 99
Corby
Northamptonshire
NN17 9RS
United Kingdom
Japan
West Tower (12th Floor)
Yokohama Business Park
134 Godocho, Hodogaya
Yokohama, Kanagawa 240-0005 Japan
USA
7410 Pebble Drive
Fort Worth
Texas 76118-6961
Canada
1701 Woodward Drive
Ste 108 Ottawa
Ontario K2C 0R4, Canada
South America
Av. Pdte. Eduardo Frei M. 6001-71
Centro Empresas El Cortijo
Conchali, Santiago, Chile