# HT Italia XL423 600V Single Phase TRMS Voltage Data Logger # HT Italia XL423 600V Single Phase TRMS Voltage Data Logger ## Key Features At A Glance - Single-phase TRMS voltage logging from 0 to 600 V at 0.1 V resolution, accuracy ±(1.0% rdg + 2 dgt) - RS-232 PC interface for downloading recorded data and configuring the logger - 1 Mbyte memory with selectable sampling periods of 1 s, 6 s, 30 s, 1 min, and 5 min - Logging autonomy up to 1820 days at the 5-minute sampling period (battery dependent) - IP65 protection degree and Class 2 double insulation (RS-232 connector closed) - Rated EN 61010-1 CAT III 600 V to ground and between inputs - Battery powered by two 1.5 V AA alkaline cells with greater than 6-month battery autonomy - TRMS measurement across a 3200 Hz bandwidth with a maximum crest factor of 3 The HT Italia XL423 is a single-phase true-RMS (TRMS) voltage data logger built around a 0 to 600 V measurement range with 0.1 V resolution and an accuracy of ±(1.0% of reading + 2 digits). It senses voltage as a TRMS value across a 3200 Hz bandwidth, handles signals with a crest factor up to 3, and operates at working frequencies of 50 Hz and 60 Hz (each ±6%). A voltage data logger records electrical voltage over time into internal memory so the readings can be reviewed afterward rather than watched live. The XL423 stores its measurements to onboard memory for unattended logging and then transfers the recorded data to a PC through its RS-232 interface for review. 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 (Accuracy at 23°C ± 5°C, <60%HR) Range 0 ÷ 600V Resolution 0.1V Accuracy ±(1.0%rdg + 2dgt) Null readings Meter considers null readings <2V Working frequency 50±6% Hz, 60±6% Hz Type of measure TRMS Bandwidth 3200Hz Max crest factor 3 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) 5 (1s); 34 (6s); 170 (30s); 364 (1min); 1820 (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) General Information 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 \>6 months Dimensions 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) EMC EN61326 (1997) + A1 (1998) + A2 (2001) > **Important:** The meter treats readings below 2 V as null. > **Important:** Meter considers null readings below 2V. > **Important:** Operating and storage conditions and the IP65 protection degree apply with the RS-232 connector closed. > **Important:** Reference safety rating: EN 61010-1 CAT III 600V (to ground and between inputs). ## 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:** 695.0 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 | 695.00 USD | In stock | ## Images - XL423 HT Instruments Data Logger --- > Source: [ValueTronics](https://valuetronics.com/products/xl423-ht-instruments-data-logger-new) > Updated: 2026-06-27