# HT Italia XL424 Three Phase TRMS Voltage Data Logger # HT Italia XL424 Three Phase TRMS Voltage Data Logger ## Key Features At A Glance - Three-phase TRMS voltage logging across a 0 to 600 V range at 0.1 V resolution - Accuracy of ±(1.0% rdg + 2 dgt), specified at 23°C ±5°C - EN 61010-1 CAT III 600 V (to ground and between inputs); Class 2 double insulation - IP65 protection degree with RS-232 connector closed - RS-232 PC interface for downloading logged data - Selectable sampling periods (1 s, 6 s, 30 s, 1 min, 5 min) stored to 1 Mbyte memory - Battery powered by 2x1.5 V LR6/AA alkaline cells with >6 months battery autonomy - Logging autonomy from ~1.5 days at 1 s up to 455 days at the 5-minute period The HT Italia XL424 is a three-phase TRMS voltage data logger that records true-RMS voltage across a 0 to 600 V range and stores the readings in internal memory for later retrieval. It resolves voltage to 0.1 V with an accuracy of ±(1.0% of reading + 2 digits), specified at 23°C ±5°C and below 60% relative humidity, and treats readings under 2 V as null. As a data logger, the XL424 is built to capture voltage measurements automatically over time rather than requiring an operator to read values by hand, producing a record across a chosen sampling interval. It measures on a true-RMS basis at working frequencies of 50 Hz ±6% and 60 Hz ±6%, with a 3200 Hz bandwidth and a maximum crest factor of 2. ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. ## Product Core & Specifications Specification Value Voltage (Electrical Specifications, 23°C ± 5°C, <60%HR) Range 0 ÷ 600V Resolution 0.1V Accuracy ±(1.0%rdg + 2dgt) Null reading threshold meter consider null readings <2V Working frequency 50±6%, 60±6% Hz Type of measure TRMS Bandwidth 3200Hz Max crest factor 2 General Specifications Sampling rate 64 point in 20ms for each sampling period Sampling period 1s, 6s, 30s, 1min, 5min Memory capacity 1Mbyte Autonomy in days (depending on batteries autonomy) 1.5 (1s) ; 8 (6s) ; 42 (30s) ; 91 (1min) ; 455 (5min) PC interface RS-232 Operating Temperature / Humidity \-20°C to 60°C ; 0 - 100%RH (RS-232 connector closed) Storage Temperature / Humidity \-20°C to 60°C ; 0 - 100%RH (RS-232 connector closed) Insulation class 2 (double insulation) Altitude max 2000m Protection degree IP65 (RS-232 connector closed) Power supply 2x1.5V alkaline battery type LR6-AA-AM3-MN1500 Battery autonomy \>6months Dimension 120 (L) x 80 (La) x 43 (H) mm Length test leads 2.6m Weight about 500g (with internal batteries) Reference Standards (LVD) EN 61010-1 CAT III 600V (to ground and between inputs) Reference Standards (EMC) EN61326 (1997) + A1 (1998) + A2 (2001) > **Important:** Readings below 2 V are treated as null. > **Important:** The meter considers null readings below 2V. > **Important:** IP65 protection degree, and the rated operating/storage humidity, apply only with the RS-232 connector closed. > **Important:** Insulation: class 2 (double insulation); LVD rating EN 61010-1 CAT III 600V (to ground and between inputs); maximum altitude 2000m. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 845.0 USD - **Vendor:** HT Italia - **Type:** Data Log - **Tags:** Data Logger, HT Instruments, Manufacturers, Meters & DAQ, product_manual_group_1, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 845.00 USD | In stock | ## Images - HT Italia XL424 Three Phase TRMS Voltage Data Logger --- > Source: [ValueTronics](https://valuetronics.com/products/xl424-ht-instruments-data-logger-new) > Updated: 2026-06-27