AMM-3320 LCR Meter

The LCR meter AKTAKOM AMM-3320 is designed to measure Inductance (L), Capacitance (C), and Resistance (R). Mini USB port allows connecting the LCR meter to PC.

Features

• 1,999 counts dual LCD display
• Analog Bar display
• Mini USB port connect to PC
• Auto LCR smart check and measurement
• Parameters Ls, Lp, Cs, Cp, DCR, ESR, D, Q and θ
• Basic accuracy: 0.3% with resolution of 0.01%
• Measurement frequency up to 100 kHz
• Sorting function
• Relative measurement
• Data hold
• Backlight, full angle for LCD display
• 4-terminal measurement configuration
• Automatic power off
• Battery and external power supply
• Battery voltage indication

Parameter

Primary	DCR: DC resistance
	Ls/Cs series inductance / capacitance
	Lp/Cp parallel inductance / capacitance
Secondary	θ: phase angle
	D: dissipation factor
	ESR: equivalent series resistance
	Q: quality factor
	Rp: equivalenent parallel resistance

Specifications

	Frequency	Range
L	100/120Hz	20mH…20kH
	1kHz	2000μH…2000H
	10kHz	200μH…20H
	100 kHz	20μH…200mH
C	100/120Hz	20nF…20mF
	1kHz	2000pF…2mF
	10kHz	200pF…200μF
	100kHz	200pF…20μF
R	100/120Hz	200Ω…200MΩ
	1kHz	20Ω…200MΩ
	10kHz	20Ω…20MΩ
	100kHz	20Ω…2MΩ

L	DCR	200…200M
	D/Q	0.001…1999
	θ	0.00°…±180°

Impendance accuracy

The bellow-listed accuraies are guaranteed by the meter with normal use under the operating temperature of 18-28 and relative humidity less than 80%.

	0.1-1Ω	1-10Ω	10Ω-100kΩ	100kΩ-1MΩ	1M-20MΩ	20M-200 MΩ	Remark
DCR	1.0%+5d	0.5%+3d	0.3%+2d	0.5%+3d	1.0%+5d	2.0%+5d	D<0.1
100/120 Hz	1.0%+5d	0.5%+3d	0.3%+2d	0.5%+3d	1.0%+5d	2.0%+5d
1 kHz	1.0%+5d	0.5%+3d	0.3%+2d	0.5%+3d	1.0%+5d	5.0%+5d
10 kHz	1.0%+5d	0.5%+3d	0.3%+2d	0.5%+3d	1.0%+5d	N/A
100 kHz	2.0%+5d	1.0%+5d	0.5%+3d	1.0%+5d	2.0%+5d (1M-2MΩ)

• Frequency: 100/120/1k/10k/100kHz
• Display: Dual display + analog bar display
• Test level: 0.6Vrms
• Rang mode: Auto and Hold
• Equivalent Circuit: Parallel and Series
• Calibration function: Open/Short
• Interface: Mini-USB
• Measurement speed: approx. 1.2 times/second
• Measurement terminal: 4-terminal
• Basic accuracy: 0.3%
• Power: AAA*6 battery or external power supply
• Auto power off: 5 min (with batteries)
• Operation environment: temperature (0…40°C), humidity (90%RH, 40°C, no condensation)
• Storage temperature: -25°C…50°C
• Size: 8×4×2in/ 203.2×101.6× 50.8mm
• Weight: 20oz/567g

Accessories

• LCR testing leads (pair)

• LCR clips (open and short)

• Black crocodile lead (single)

• USB - mini cable

• Batteries

• Soft bag

• User manual

AMM-3320 LCR Meter - front view Enlarge		AMM-3320 LCR Meter - rear view Enlarge		AMM-3320 LCR Meter - side view Enlarge
AMM-3320 LCR Meter - top view Enlarge		AMM-3320 LCR Meter - accessories Enlarge		AMM-3320 LCR Meter - case Enlarge
AMM-3320 LCR Meter Enlarge

Capacitance measurement

• Turn on the power.
• If exists voltage in the capacity, connect the two ends of the capacitor for a short time to discharge.
• There are two ways for capacitance input:
  a. Insert the positive polarity of capacitance into the positive terminal and its negative polarity into the negative terminal;
  b. Insert the black and red testing lines with alligator clip into the "L_CUR", "L_POT" terminal and "H_CUR", "H_POT" terminal respectively. Connect the alligator clips to the two ends of capacitance corresponding to its polarity.
• The default test mode is Auto LCR mode, the capacitance value will show on primary display and the dissipation factor D will show on secondary display. In Auto LCR mode, the D/Q/ESR key, SEL/PAL key, SORTING key and REL% key are not available.
• Press FUNC. key twice to select Auto-C mode. The primary LCD display will show the capacitance value. The secondary LCD display will show the dissipation factor D. The quality factor Q, equivalent resistance ESR/Rp or phase angle θ can also be shown by pressing the D/Q/ESR key.
• Press FREQ key to select frequency value: 100/120/1k/10k/100kHz.
• Press SER/PAL key to select series or parallel mode.

Note: 1. When Auto-LCR mode is active, the secondary parameter will show the equivalent resistance in parallel mode (Rp) to replace the D factor if the C measured value is less than 5pF.
2. In order to avoid damaging the instrument, the capacitance requires discharge before measuring.

Inductance measurement

• Turn on the power.
• There are two ways for inductance input:
  a. Insert the measured inductance into the input terminal directly;
  b. Connect the alligator clips to the ends of the measured inductance.
• The default test mode is Auto LCR mode, the inductance value will show on primary display and the quality factor Q will show on secondary display. In Auto LCR mode, the D/Q/ESR key, SEL/PAL key, SORTING key and REL% key are not available.
• Press FUNC. key to select Auto-L mode. The primary LCD display will show the inductance value. The secondary LCD display will show the quality factor Q. The equivalent resistance ESR/Rp, phase angle Θ or dissipation factor D can also be shown by pressing the D/Q/ESR key.
• Press FREQ key to select frequency value: 100/120/1k/10k/100kHz.
• Press SER/PAL key to select series or parallel mode.

Resistance measurement

• Turn on the power.
• There are two ways for resistance input:
  a. Insert the measured resistance into the input terminal directly;
  b. Connect the alligator clips to the ends of the measured resistance.
• The default test mode is Auto LCR mode, the resistance value will show on primary display and the phase angle θ will show on secondary display. In Auto LCR mode, the D/Q/ESR key, SEL/PAL key, SORTING key and REL% key are not available.
• Press FUNC. key three times to select Auto-R (ACR) mode. The primary LCD display will show the resistance value. The secondary parameter is omitted and the D/Q/ESR key is not available.
• Press FREQ key to select frequency value: 100/120/1k/10k/100kHz.
• Press SER/PAL key to select series or parallel mode.
• Press FUNC. key four times to select DCR mode. The primary LCD display will show the resistance value. The secondary parameter is omitted and the D/Q/ESR key, SEL/PAL key and FREQ key are not available.

Note: The phase angle Θ will show on secondary display only in Auto-LCR mode. During Auto-R mode or DCR mode, the secondary parameter is not available.

Frequently Asked Questions

What is the purpose of AutoLCR mode in AKTAKOM AMM-3320 RLC Meter?

How to select the secondary measured parameter when operating AKTAKOM AMM-3320 RLC Meter?

How to select the primary measured parameter when operating AKTAKOM AMM-3320 RLC Meter?

What is the purpose of AutoLCR mode in AKTAKOM AMM-3320 RLC Meter?

AutoLCR mode is used in AKTAKOM AMM-3320 RLC meter for automatic selection of the primary and secondary parameters for L, C, R modes and it is activated on default. Selection is made in accordance with the test result. This function makes it convenient to take measurements of different-type or unknown elements. Condition Primary parameter Secondary parameter lθl<-11° Capacity (C) Dissipation factor (D) (if C<5pF the secondary parameter is Rp) lθl>11° Inductance (L) Quality factor (Q) lθl<11° Resistance (R) Phase angle (θ) Up

How to select the secondary measured parameter when operating AKTAKOM AMM-3320 RLC Meter?
In order to select the secondary parameter when operating AKTAKOM AMM-3320 RLC Meter you need to press “D/Q/ESR” button. Each time you press the button the parameter changes in the following order: D (dissipation factor) ► Q (quality factor) ► θ (phase angle) ► ESR (equivalent series resistance) Up

How to select the primary measured parameter when operating AKTAKOM AMM-3320 RLC Meter?

In order to select the primary parameter when operating AKTAKOM AMM-3320 RLC Meter you need to press “FUNC” button. Each time you press "FUNC" the parameter changes in the following order: AUTO LCR (automatic selection of the value under measurement) ► L-Q (measurement of inductance and quality factor) ►C-D (measurement of capacity and dissipation factor) ►R (resistance measurement) ►DCR (DC resistance measurement). L/C/R values can be positive and negative. If in C-D mode the primary parameter has "-" sign then the element should be measured in inductance mode. If in L-Q mode the primary parameter has "-" sign then the element should be measured in capacity mode. If in R mode the primary parameter is negative then this means calibration error and it is necessary to re-calibrate AMM-3320 RLC meter. Up