LCR Meter ST2822A

ST2822A Handheld LCR Meter

The portable LCR Meter ST2822A offers excellent configuration, such as 0.25% of basic measurement accuracy, 0.0001 of D/Q resolution, 4 meas/s of measurement speed, percentage display and 4-tolerance comparator, 5-terminal test technology and intelligent L/C/R function, constant output impedance by 100 Ohm, data hold and max/min/average recording, is comparable with a bench meter.

Gorgeous dual-color cast shell, ultra-low power consumption by 25mA typical current, standard mini-USB interface and free communication software.

Highlights

• Portable LCR-Meter
• Signal frequencies: 100Hz, 120Hz, 1kHz, 10kHz
• Tolerance mode: 1%, 5%, 10%, 20%
• 9V battery
• Powered by battery or 12V DC
• Up to 16 hours operation time with battery
• Charging time approx. 80min
• Backlight LC-Display
• Display modes: Direct, ∆%, ∆ABS
• 4-tolerance comparator

Outstanding performance and convenience

ST2822 Series applies the ultra-low power consumption design and high density SMD assembly techniques and can simultaneously display primary and secondary parameters on a LCD display with backlight. The dual-color shell is gorgeously once shaped; and functions are easy to operate.

The test frequency is up to 100 kHz, the readings of primary parameter 40,000 counts and the resolution of dissipation factor 0.0001. Accurate and convenient  measurements of passive-components can be achieved in different occasions for a long time.

With USB interface, ST2822 series can conveniently communicate with a PC and be remotely controlled by a PC

Small size for easy carrying: Measure LCR components anytime and anywhere

With its convenience of handheld measurement, ST2822 series can perform the measurement of basic LCR parameters easier and faster and simultaneously meet the requirements of fast and convenient measurements in many occasions such as: field maintenance, fixed or non-fixed quality check on production line, warehouse in-and-out checkout of electronic components, real-time sampling or batch inspection and especially for outdoor measurements. Its excellent price versus performance ratio against bench meters makes it possible for most related technicians to equip with.

Excellent performance: Comparable test functions and performance with a bench meter

The measurement frequency is up to 100kHz(ST2822A); the basic measurement accuracy is 0.25%; 40,000 counts for primary display is the highest in the identical handheld LCR meter; D/Q counts resolution for secondary parameter is 0.0001, which can be applied to the accurate dissipation factor measurement and makes it possible for the handheld LCR meter to measure low dissipation and ESR capacitors such as metalized, mica, NPO(COG)
ceramic capacitors. ST2822 supports up to 4 meas/sec of fast test speed comparable with the bench meter.

Constant output impedance: No worry for inconformity of component test results

For traditional handheld LCR meters and even some bench LCR meters, output impedance of signal source changes with different range. When measuring some level sensitive components, different LCR meters may give different results, for instance, impedance values of inductive components vary with test current; capacitance of ceramic capacitor with high Q factor changes with test voltage. So the change of output impedance will cause the inconformity of testing results. Most bench LCR Meter adopt 100Ohm signal source internal resistance, ST2822 series first achieves the use of 100 Ohm constant source internal resistance on handheld LCR meters. Whereupon, the test results of common or level sensitive components are reliable and comparable.

Flexible terminal configuration: Low-cost and high-accuracy terminal configurations available

ST2822 series applies 5-terminal and 3-terminal configurations. Low-cost banana plugs and crocodile clips can be used for simple 3-terminal test and 5-terminal slots, 5-terminal testing cables and SMD 5-terminal tweezers can be used for high-accuracy measurement.

Ultra low dissipation: Longest battery life in the industry

You may be often annoyed by changing batteries; ST2822 series’ low dissipation capability provides you double battery life over other handheld LCR meters. With its advanced low consumption design, ST2822 series has the lowest dissipation in similar meters under 22mA working current (1 kHz, 100 Ohm load). The low consumption design makes the work-hour of the battery last for 16 hours. In the case of power-off or external power, the standby current of the battery is 2μA (limited to non-rechargeable model).

Multiple power configuration: Flexible power supply for easy use

ST2822 series provides you with external dc power port. When TH2822 series is used in a regular occasion where an ac power socket is available, the standard +12V power adapter can be used. And when the power adapter is at work, the internal alkaline battery enters a standby state with a power consumption of 2μA (limited to non-rechargeable model). it is quite valuable to inspect and classify various mixed components before feeding the components or warehousing.

Auto LCR function: Easy use for non-expert

There are various test parameters and equivalent circuit modes in ST2822 series, which is extraordinarily suitable for professional measurement.  Nevertheless, most non-experts can be difficult to identify inductor, resistor and capacitor in that most RC-components are almost identical in appearance. By using Auto LCR Function, users can identify tested components easily and obtain measurement results immediately. All you need do is to press the key of LCR AUTO, then according to the properties of tested components, the meter will automatically select appropriate test parameter combination and equivalent modes.

USB communication: Fast mobile data acquisition

Mini-USB interface is the standard interface of ST2822 series. Like cell phones and other digital products, ST2822 series can rapidly be connected to desktop or portable computer through USB interface and set up acquisition platform of testing data anytime and anywhere. Automatic sending function of testing data and even interactive control by SCPI are available on ST2822 series. When connected to PC, ST2822 series is simulated as a serial equipment. To realize device control, data acquisition and statistic analysis, all you need to do is to know how to use a PC serial port.

Technical data

• Measuring Parameters: Primary: L, C, R, Z / Secondary: D, Q, θ, ESR
• Testlevel: 0.6 Vrms
• Basic accuracy: 0.25 %
• Measuring speed: 4 meas/sec (fast), 1.5 meas/sec (slow) 
• Equivalent circuits: series and parallel
• Auto LCR function
• Automatic ranging mode
• Test terminals: 3-terminal, 5-terminal
• Correction: Short and open
• Mini-USB Interface, SCPI compatible
• Firmware update via USB
• Constant 100Ω output impedance
• Automatic power-off function
• Measuring modes: Manual, auto and hold
• Auto-Power-Off: 5 / 15 / 30 / 60 min. / OFF
• Sweep frequency correction function
• Operation temperature: 0°C – 40°C
• Dimensions (W/H/D): 190/90/41 mm
• Weight: 0.35 kg
• Safety: IEC 61010-1:2001, IEC 61326-2-1:2005

What's in the Box

• Mini-USB-cable
• ST26004F crocodile clip test leads (red/black)
• ST26029C SMD test tweezers
• ST26027A  Kelvin test clips
• ST26010B Short plate  
• 8.4V Ni-MH 200mAH rechargeable battery
• Operation manual
• Software ST2822X