Portable Gas Monitor LT-GM403 Catalog

Portable Gas Monitor LT-GM403

Portable Gas Monitor LT-GM403

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Overview

Portable Gas Monitor&nbsp;<span style="color:#212529;">LT-GM403&nbsp;</span>is engineered with explosion-proof, anti-static, and anti-EMI protection for reliable operation in hazardous environments. It supports 4–20 mA signal and voltage output with dual relay switches for easy system integration. Certified to national standards with CPA and explosion-proof approvals, it ensures stable performance. Ideal for chemical plants, oil and gas facilities, refineries, and industrial safety monitoring.

Specifications:

Detected Gas C₈H₁₀
Detection Range 0–10 ppm
Resolution 0.01 ppm
Detection Principle Electrochemical sensor
Detection Accuracy ≤ ±2% F.S
Linearity ≤ ±2%
Repeatability ≤ ±2%
Uncertainty ≤ ±2%
Response Time T90 ≤ 20 s
Recovery Time ≤ 30 s
Signal Output RS485 (RTU), 4–20 mA (three/four-wire); Optional: 0–20 mA, 1–5 V, 0–5 V, 0–10 V, wireless transmission, network transmission, SMS alarm
Display 1.7-inch high-definition color screen
Operating Voltage 12–36 V DC (Standard: 24 V DC, ≥1 A)
Power Reference 24 V, 2.1 A power supply supports up to 40 toxic gas detectors
Operating Mode Fixed installation, online detection, diffusion, pipeline, flow, or pump-suction measurement
Installation Method Wall-mounted or pipeline type
Alarm Method 1-channel default, optional 2 passive contact outputs; three-level alarm with adjustable points; optional sound and light alarm
Operating Temperature -40°C to +70°C
Operating Humidity ≤10–95% RH
Protection Level IP65
Explosion-proof Grade Exd II CT6 Gb
Dimensions 238 × 152 × 90 mm (without alarm); 238 × 210 × 90 mm (with alarm)
Weight 1.38 kg (without alarm); 1.6 kg (with alarm)
Features:
  • Explosion-proof & anti-EMI
  • CPA certified, national standard
  • 4–20 mA & RS485 output
  • Optional sound & light alarm
  • Wired, LAN, Internet, or wireless
  • 433 MHz long-distance wireless
Applications :
  • It is a portable gas monitor with explosion-proof design, suitable for detecting toxic and flammable gases. It is widely used in chemical plants, oil and gas facilities, refineries, power stations, and other industrial safety monitoring environments.
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