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DILO Home > Analyzers > Warning Device > 3-026-R050

SF₆ Warning Device 3-026-R050

Description

The DILO 3-026-R050 infrared based warning device is the ideal tool to protect users, the environment, and to help reduce SF6 emissions. It is extremely sensitive, and has a very fast response time when monitoring indoor applications such as GIS or cylinder storage areas. The OSHA Permissible Exposure Limit (PEL), the American Conference of Governmental Industrial Hygienists (ACGIH), and CIGRE B3.02.01 Threshold Limit Values (TLV) for this SF6 have been set at 1,000 ppm1. With LEDs, buzzers, and relay outputs, the unit can turn on ventilation fans and signal remote operators of a potential hazard. Should a GIS (or cylinder) rupture disc fail, the 3-026-R050 would immediately alert approaching crew of the potential for excessive SF₆.

Technical Specifications

• Principal Dual wavelength non-dispersive infrared spectrometer (NDIR)
  
• Sensitivity 1 PPM_v non cross sensitivity to other gases
• Moisture Unaffected 0-100% RH, non-condensing
• Response time 30 seconds
  
• Measurement PPM_v, 0-5000 PPM_v
• Accuracy < 2000 PPM_v +/- 5% of value; > 2000 - 5000 PPM_v +/- 2% of range;
  
• Repeatability < 0.3 %
• Warm Up Time 3 minutes initial (40 minutes full spec)
  
• Power 88 - 138 V or 172 - 176 V (user selectable)
• Alarm Audible and visual
  
• Controls Set point 1 & 2 adjustment ; View set point button 1 ; View set point button 2 ;
  Indicator LED and display test button
  
• Bitswitch parms analog output (current) 0-20 / 4-20 mA ; linear or non-linear output
  
• Alarm settings Alarm 1 & 2 high/low ; Alarm 1 & 2 NO/NC ; Buzzer sounds on both or alarm 2 ; Low flow warning (light or buzzer)
  
• Display Four-Digit LCD ; Alarm 1 & 2 LED ; Fault LED ; Low flow / flow failed LED
  
• Relay contacts Resistive load @ 24VDC = 8A ; Resistive load @ 250VAC = 8A ;
  
• Pump details 1 liter/min flow rate ; max 100' distance
  
• Calibration Every two years
  
• Operating temp 32°F to 104°F
  
• Dimesions 10.5"L x 10 "W x 6 "D,
• Weight 4 lbs     

Characteristics

• Non-radioactive source
• Low maintenance
• No cross-sensitivity to moisture
• Unaffected by background gases/contamination
• No consumables
• Highly sensitive
• Two independently adjustable alarms (upper and lower)
• Two switchable relay contacts
• Analog output (0-20 mA or 4-20 mA)
• Installs in minutes