Control unit for gas detectors Uniphos 500 W4

Product Summary
The Uniphos 500 W4 is a wall-mountable, microprocessor-based quad-channel gas controller designed to monitor gas concentration from multiple transmitters. Hi-viz LED displays provide clear readings in low-light conditions. Each channel offers two user-settable alarm set points and three potential-free relay contacts for flexible alarm handling and external integration.

Application

• Refineries
• Petrochemical plants
• Pharmaceutical plants
• Power industry facilities
• Marine installations
• Chemical plants

Features

• Two user-programmable alarm set points per channel
• Three potential-free relay contacts per channel
• Microprocessor-based system with built-in self-test facility
• Hi-viz LED display for clear readings
• Compatible with 4-20 mA inputs from 2-wire and 3-wire gas transmitters
• Provision for data connectivity to a PC

Technical specifications

• Display: 3-digit 7-segment LED display per channel
• No. of channels: 4
• Channels / fascia module: 2
• Input signal: Industrial standard 4-20 mA analog signal
• Output signal: 4-20 mA loop-back signal
• Alarms: 3 potential-free relay contacts per channel (Low, High & Fault)
• Data connectivity: Provision to transfer data to a computer
• Input power: 110-230 V AC ±10%, 50 Hz
• Output power: 24 V DC (for transmitters only)
• Function keys: Low, High, Inhibit & Reset
• Operating temperature: 0 to 50 °C
• Pressure: Ambient ±10%
• Enclosure: FRP
• Weight: Approximately 6 kg
• Dimensions (FRP): L = 300 mm, W = 175 mm, D = 350 mm