Lelas TLH214A1G Internal Intercom Service Manual

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Lelas TLH214A1G Internal Intercom Service Manual - cover page
Brand
HP
Document type
Service Manual
Language
Chinese
Pages
518
File format
PDF
File size
2.3 MB
Updated
29 September, 2023
MD5 checksum
863025541900073B5A76977D7E7042FB

About this manual

The TLH214A1G is a wall‑mounted, explosion‑proof internal intercom system designed for industrial environments. It features a cast‑aluminum housing, a single‑key keypad with red LED, and optional external speaker support. The device complies with EEx dIB T6 – ATEX 112GD safety standards.

The manual covers power connection (48 VDC or 24 VDC), wiring of the internal and external speaker, adjustment of volume and microphone sensitivity, and routine maintenance procedures. Installation must be performed by trained personnel, and the unit is covered by a two‑year warranty. This manual is written in Chinese.

What's inside

  • Product Overview
  • Technical Specifications
  • Power Supply and Wiring
  • Keypad Operation
  • Installation Procedure
  • Maintenance and Service
  • Safety and Explosion‑Proof Rating
  • Warranty

Specifications

ModelTLH214A1G
Explosion‑proof ratingEEx dIB T6 – ATEX 112GD
Power supply voltage48 VDC or 24 VDC
Current (no external speaker)0.15 A
Current (with external speaker)0.5 A
Built‑in amplifier power15 W
Input impedance>10 MΩ
Transmission line impedance0 dB / 600 Ω
External speaker power5 W – 90 dB
Enclosure materialCast aluminum
ColorRAL2003 (bright yellow)
Warranty period2 years

Frequently asked questions

What power supply voltage does the TLH214A1G require?

It can be powered from either 48 VDC or 24 VDC.

How many keys are on the keypad and what indication does it have?

The keypad has one key with a built‑in red LED indicator.

What is the explosion‑proof certification for this device?

The unit is certified to EEx dIB T6 – ATEX 112GD standards.

How long is the warranty period?

The device comes with a two‑year warranty.

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