Nova Analytical Systems - Continuous Hydrogen Sulfide Alarm Monitors - 550 Series

Designed to monitor ambient hydrogen sulfide (H2S) near industrial processes such as biogas & syngas production, landfills, in confined spaces, or any other area where H2S may be present.

Request Information

Unit of Measure

Items	Model 550D Hydrogen Sulfide Alarm Monitor, diffusion sensor	Model 550DR1 Hydrogen Sulfide Alarm Monitor, 1 remote sensor	Model 550DR2 Hydrogen Sulfide Alarm Monitor, 2 remote sensors	Model 550P Hydrogen Sulfide Alarm Monitor, built-in pump
Method of Detection	N/A Disposable electrochemical cell
Ranges Available	N/A 0-20 PPM standard
Resolution	N/A 1 PPM
Accuracy & Repeatability	N/A ±1% of full scale or 2 PPM, which ever is higher	N/A ±1% of full scale or 2 PPM, which ever is higher	N/A Better than 1% of full scale or 2 PPM, which ever is higher	N/A ±1% of full scale or 2 PPM, which ever is higher
Drift	N/A Less than 1% of full scale or 2 PPM per week, whichever is greater
Response Time (T-90)	N/A Less than 15 seconds to 90% step change
Ambient Temperature Range	N/A 32 to 120°F (0 to 40°C), may be operated at lower temperature with auxiliary heater
Linearity	N/A ±1% of full scale or 1 PPM, which ever is higher
Size & Weight	N/A 14" H x 12" W x 8" D (35.6 x 30.5 x 20.3 cm) @ 18 lbs. (8.2 kg)
Power	N/A 115 VAC, 60 Hz 220 VAC, 50 Hz
Output Options	N/A 0-1 VDC 4-20 mA
Alarms	N/A	N/A Optional: Audible alarm with 'Acknowledge' button Optional: Dual high H2S alarm light and relays (SPDT - 5A@ 230 VAC)	N/A Optional - Audible alarm with 'Acknowledge' button Optional - Dual high alarm light and relays (SPDT - 5A@ 230 VAC)	N/A Optional - Audible alarm with 'Acknowledge' button Optional - Dual high alarm light and relays (SPDT - 5A@ 230 VAC)
Options	N/A Cold weather package for operation to -5°F (-20°C) Fail Safe' alarms available Low flow alarm on 540P NEMA 4X enclosure (WP) Strobe light