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For professionals (EU) | All data subject to change

Digital Power Meter

Power Analysis for Development & Production

The ITECH IT9121 is an AC/DC power meter (power analyzer) for power and energy analysis from the lab to series production. It captures electrical quantities with precision, presents readings clearly, and supports quality assurance, efficiency optimization, and compliance in power-supply testing as well as at the ATE test bench. Proven in test & measurement, it operates as a power and energy meter, provides reliable data for power measurement, and measures energy consumption transparently.

Measured Quantities – Fully Covered

The IT9121 delivers comprehensive energy and consumption analysis with trend display and reporting—ideal for power-quality assessments and product validation. It measures voltage and current and also captures active power, reactive power, and apparent power. Also in view: power factor (PF), frequency, and phase angle.
The instrument is designed for single-phase two-wire systems (1P2W) and integrates into automated systems. When required, it operates as a digital multimeter and measures voltage, current, and resistance within the defined measurement range.

Harmonics & THD in Focus

Harmonic mode analyzes individual harmonics (including phase) and total harmonic distortion (THD). List and bar charts make distortion immediately visible—useful for EMC-adjacent assessments, power-supply optimization, drives, and lighting. The power-quality functions deliver consistent results across the entire measurement range and increase confidence when evaluating electrical measurements.

Clear Display and Configurable Layouts

The high-resolution color display offers single view, multi-field layout, and a trend view for time histories. Configurable views support precise analysis and quick decisions at the bench. High accuracy simplifies the evaluation of active and apparent power.

Interfaces for Any Test Stand

USB, RS-232, LAN, and GPIB enable remote control, ATE integration, and seamless connection to existing data flows. Data acquisition with export functions ensures complete documentation and supports audit-ready processes; it is compatible with data-logger workflows and current-transformer setups. Accessories such as test leads and adapters are supported, and calibration remains traceable. In ATE environments, the system streamlines digital-multimeter tests with consistent readings across defined measurement ranges.

Request the ITECH IT9121 now and analyze power with precision.

Specifications

Specification Value
Voltage 6 ranges from 15 V to 600 V
Current 12 ranges from 5 mA to 20 A
Power-measurement accuracy ±0.2% of S at λ = 0
External current-sensor inputs 2.5 to 10 V
Frequency bandwidth DC, 0.5 Hz to 100 kHz
Accuracy (voltage & current) ±0.1% of reading + ±0.2% of range
Harmonics & THD harmonic mode up to the 50th order showing U/I/P harmonics, THD (U/I/P), and phase angles; PLL tracking of the fundamental from 10 Hz to 1.2 kHz
Display 4.3″ color TFT (480 × 272 px) with 3 selectable views and freely configurable parameter views
Oscilloscope & trend view display of V/I waveforms with history and histogram; USB host for saving data and waveforms
Interfaces USB, RS-232, LAN, GPIB (optional)
Topology single-phase, two-wire system (1P2W)
A/D conversion 18-bit resolution, max. 10 µs conversion time
Filters switchable line/frequency filters with 200/500 Hz cutoff for smoother displays, stable averages, and fewer outliers
Synchronization selectable source (V / I / period) for stable phase/frequency references and reliable power, THD, and harmonic values
Power supply 100–240 VAC, 47–63 Hz; max. 50 VA power consumption

Options & Accessories

Manufacturer number Name
IT-E33620-OO 360 A / 2.0 m / round clamp → round clamp
IT-E32410-OO 240 A / 1.0 m / round clamp → round clamp
IT-E32420-OO 240 A / 2.0 m / round clamp → round clamp
IT-E30615-OO 60 A / 1.5 m / round clamp → round clamp
IT-E31220-OO 120 A / 2.0 m / round clamp → round clamp
IT-E30312-YY 30 A / 1.2 m / Y-clamp → Y-clamp
IT-E30320-YY 30 A / 2.0 m / Y-clamp → Y-clamp
IT-E190-25A current sensor 25 A
IT-E190-50A current sensor 50 A
IT-E185 test fixture
IT-E9005 ITECH warranty up to 5 years
IT-E9003 ITECH warranty up to 3 years

Scope of Delivery

Scope of delivery
IT9121 unit(s)
USB connection cable
AC power cord

Applications

Application examples
UPS (uninterruptible power supplies)
Switching power supplies
ENERGY STAR-compliant testing
Motors/drives
Household appliances

Videos

Links & Downloads

Available documents (Subject to change)

Supplier

ITECH is one of the world's largest manufacturers of AC and DC power supplies. The group's diversified product portfolio includes battery testing and power supply test systems. The company's focus is on a competitive price-performance ratio.