HY-ALERTA^® 5020/5021 Solid-State Area Hydrogen Monitor

Solid-State Area Hydrogen Monitor Improves Response Time To Hazards

Auto-calibrating technology
Avoids false positives from other gases
Zero maintenance

Request a Quote HY-ALERTA^® 5020 Datasheet HY-ALERTA^® 5021 Datasheet

Applications

H2scan’s HY-ALERTA^® 5020/21 solid-state area hydrogen monitor is a reliable, hydrogen gas detector for real-time monitoring of battery rooms that avoids false positives from other gasses. The auto-calibrating technology allows data centers, utilities, telecommunications, and energy storage systems end users to deploy it maintenance-free, with no calibration or board replacements needed throughout the life of the unit.

The expected service life is 10+ years, making the HY-ALERTA 5020/21 a low cost of ownership option compared to other technologies. Native Modbus communication from the sensor to a Modbus scanner makes the sensor able to communicate with most existing building management systems and alarm panels. Digital contacts make it easy to connect to exhaust fans to activate during alarm conditions. Multiple mounting options make the HY-ALERTA 5020/21 perfect for battery rooms, cabinets, and other locations where battery safety is critical.

With no moving parts, the safety monitor is extremely reliable and easy to use. It is intended for use in an air, oxygen, or inert gas background where hydrogen is only occasionally present for short periods, as may occur if there is a leak or off gassing from batteries. The hydrogen detection range is from 4000 ppm to 5% hydrogen, covering 10% to 125% of hydrogen’s lower explosive limit. The monitor can be mounted to the ceiling, wall, or Unistrut for optimal performance.

Data Center UPS
Telecom Central Offices and Remote Sites
Utility Applications and Substations
Energy Storage Batteries
Vented Lead-Acid Batteries
Valve Regulated Lead Acid Batteries
Vented Nickel Cadmium Batteries
Battery Cabinet Installations

Product Selection

Model	5020	5021
Measuring Range	0.4 - 5% (10 - 125% LEL)
T90		5 Minutes
Time to Report 2% (>3% Applied)	<60 Seconds	>5 Minutes
Accuracy	±0.3% H2	±0.3% H2
Calibration Interval	None	None
Operating Temperature	-40 to +60°C	-40 to +60°C
Storage Temperature	-40 to +85°C	-40 to +85°C
Operating Humidity	<95% RH (non-condensing)	<95% RH (non-condensing)
Usage	Indoor / Outdoor	Indoor / Outdoor
Ingress Protection	IP68	IP68
Digital Output	RS485, 2-wire; 19200 baud, 8 bit data, 2 stop bits, no parity; Modbus RTU Protocol	RS485, 2-wire; 19200 baud, 8 bit data, 2 stop bits, no parity; Modbus RTU Protocol
Analog Output	4-20 mA available via optional HYAO-1 accessory	4-20 mA available via optional HYAO-1 accessory
Input Voltage	9 – 48 VDC	9 – 48 VDC
Input Power	10 W	10 W
Electrical Connection	M12, 4-pin connector	M12, 4-pin connector
Dimensions	5.9in (L) x 1.6in (W) x 1.6in (D) (161mm x 40mm x 40mm)	5.9in (L) x 1.6in (W) x 1.6in (D) (161mm x 40mm x 40mm)
Safety Certifications	C/US, CE 0359	C/US, CE 0359

Technical Information


Physical	Dimensions: 151 x 39.6 x 39.6 x 39.6 mm (5.9 x 1.6 x 1.6 in)
Environmental	Operating Temperature: -10°C to 60°C (14°F to 140°F)
Power	Power Supply: 12-48 VDC, 10 W
Performance	Low H2: 0% High H2: 5% Lower Detection Limit (LDL): 0.4% H2 Response Time: (5020) <60 seconds (5021) <5 mins Accuracy (Absolute Error): 0.3% H2 Repeatability (Absolute Error): 0.3% H2
Communications	Digital Communications: Modbus RTU Analog: 4-20 mA Relays: dry contact outputs