The RKI 04 Series toxic single gas monitor is designed to operate for many years with field replaceable sensors and filters. The HCN, NO2, PH3 and SO2 versions run continuously for at least 3,000 hours on 2 AAA alkaline batteries. Each model has 2 preset, user adjustable alarms, with visual, audible and vibration alarms as standard.
Every 04 Series monitor is impact, dust and water resistant (IP-67) and safe for use in hazardous locations: intrinsically safe to ATEX and IECEx, and classified by QPS to US and Canadian standards for Class I, Division 1, Groups A, B, C and D atmospheres.
Models
| Model | Gas | Part number | Range (increment) | Alarm set points |
|---|---|---|---|---|
| SC-04 HCN | Hydrogen cyanide | 73-0071 | 0 to 30.0 ppm (0.1 ppm) | 1st 5.0 ppm, 2nd 10.0 ppm, 3rd 30.0 ppm, TWA 4.7 ppm, STEL 10 ppm |
| SC-04 NO2 | Nitrogen dioxide | 73-0073 | 0 to 20.00 ppm (0.05 ppm) | 1st 2.00 ppm, 2nd 4.00 ppm, 3rd 20.00 ppm, TWA 0.50 ppm, STEL 1.00 ppm |
| SC-04 PH3 | Phosphine | 73-0079 | 0 to 20.00 ppm (0.01 ppm) | 1st 0.30 ppm, 2nd 0.60 ppm, 3rd 0.60 ppm, TWA 0.30 ppm, STEL 1.00 ppm |
| SC-04 SO2 | Sulphur dioxide | 73-0083 | 0 to 100.0 ppm (0.05 ppm) | 1st 2.00 ppm, 2nd 5.00 ppm, 3rd 100.00 ppm, TWA 2.00 ppm, STEL 5.00 ppm |
| CO-04 (-H2) | Carbon monoxide | 73-0067 | 0 to 2000 ppm (1 ppm) | 1st 25 ppm, 2nd 50 ppm, 3rd 1200 ppm, TWA 25 ppm, STEL 200 ppm |
| CX-04 | CO and O2 | 73-0069 | O2: 0 to 40% (0.1%) | O2: L 19.5%, LL 18.0%, H 25.0% |
Detection principle: electrochemical.
