Resistance voltage sensor MS-927-ET

ACDC

Product
MS-927-ET resistive low-voltage detector with 360° LED indication and continuity test.

Overview

• Resistive low-voltage detector with 360° visible LED display for clear indication.
• Designed for absence-of-voltage verification, unipolar phase identification and DC polarity search.
• Includes audible and visible continuity check for de-energized circuits.

Application

• Verification of absence of voltage on AC and DC systems.
• Sound and light continuity test for circuits with impedance < 100 Ω.
• Unipolar phase identification and DC polarity detection.
• On-site installation and maintenance checks on low-voltage distribution.

Voltage thresholds and ranges

• Verification thresholds: AC: 50 V, 230 V, 400 V; DC: 48 V, 127 V, 300 V.
• Operating ranges: 50–1000 V AC; 48–1500 V DC.

Features

• Autotest function for device control.
• Three-part resistive detector: insulated control box with integrated touch probe, insulated secondary box with test tip, 1.4 m double-insulated connection cord.
• IP2X test probes with retractable sleeves (8–10 mm by pressure; 4 mm by trigger) and 23 mm elastic cage; contact electrodes conductive over 19 mm, Ø 4 mm.
• Continuity check for impedance < 100 Ω (audible and visual).
• Insulation category CAT IV 1000 V; Class II double insulation.
• Protection index IP65; impact resistance IK08.
• Operating temperature: -15°C to +45°C; storage: -25°C to +55°C.
• Powered by 2 × AA (LR06) alkaline batteries (supplied).

Composition / Supplied with

• Soft carrying case with belt loop and carabiner.

Optional accessories

• Contact probes for installations and pavement boxes: Ref. MS-8023.
• Contact probes for overhead lines: Ref. MS-8024.
• 2 test plug adapters for IP2X test points to reach Ø 4 mm test plugs (WAGO type): Ref. DX-04.

Standards
IEC 61243-3:2014; NF EN 61243-3:2015; NF C18-510; GS38 (2015).

Table - Key data
Reference | Frequency | Operating Voltage AC | Operating Voltage DC | Category | Weight (kg) | Protection Class
MS-927-ET | 50-60 Hz | 50 - 1000 V | 48 - 1500 V | CAT IV 1000 V | 0.365 | II

Technical specifications

• Reference: MS-927-ET.
• Frequency: 50-60 Hz.
• Operating voltage AC: 50 - 1000 V.
• Operating voltage DC: 48 - 1500 V.
• Verification thresholds AC: 50 V / 230 V / 400 V; DC: 48 V / 127 V / 300 V.
• 360° LED visible indication.
• Autotest function.
• Continuity test capability for impedance < 100 Ω.
• IP2X probes with retractable sleeves; contact electrodes Ø 4 mm, conductive length 19 mm.
• Insulation category: CAT IV 1000 V; Class II double insulation.
• Ingress protection: IP65; impact resistance: IK08.
• Operating temperature: -15°C to +45°C; storage: -25°C to +55°C.
• Power supply: 2 × AA (LR06) alkaline batteries supplied.
• Weight: 0.365 kg.
• Supplied with soft carrying case (belt loop and carabiner).