Crowcon Hydra 256 Gas Detection System

Crowcon Hydra 256

Gas Detection Control Panels

Crowcon Hydra

Manufactured by Crowcon, Hydra is a range of gas detection control panel systems which are designed to monitor toxic and/or flammable gas hazards, particularly in car park applications.

Hydra is also ideal for detecting flammable gas leaks from LPG pipes, valves and meters within residential and commercial buildings.

Addressability of the Hydra significantly reduces installation costs and makes savings through effective control of ventilation fans achievable, for example running fans at full power only when gas levels rise.

The gas detection system allows a connection of a maximum of 256 gas detectors to a single control panel via addressable RS-485 loops.

Crowcon Hydra

Gas Detection System Features

Able to control up to 256 remote outputs, all of which are programmable
Built-in relays can be used to indicate the system status remotely or provide control of auxiliary equipment
Modbus RTU output for connection to Building Management Systems (BMS)
Event log functions
Optional battery back up
Simple push-button operation.with a bright clear display on control panel shows gas levels as well as alarm and fault status
Event logging feature provides system alarm and fault history
4-year sensor life minimises sensor replacement costs

Crowcon Hydra Specification

	Hydra 32	Hydra 256	Hydra₊ Detector
Size	486W x 288H x 148D mm (19.1 x 11.3 x 5.8 ins)	430W x 405H x 140D mm 16.9 x 16 x 5.5 ins)	100W x 180H x 65D mm (3.9 x 7 x 2.5 ins)
Weight	3.8Kg (8.4lbs)	7.9Kg (17.4lbs)	0.4kg (0.9lbs)
Enclosure material	ABS	Painted steel	Painted alloy
Ingress protection	IP65	N/A	IP55
Operating Temperature	0 to +55°C (32 to 131°F)	0 to +55°C (32 to 131°F)	-10 to +55°C (14 to 131°F)
Storage Temperature	-20 to +60°C (-4 to 140°F)	-20 to +60°C (-4 to 140°F)	-20 to +60°C (-4 to 140°F)
Humidity	15-85% RH non-condensing	15-85% RH non-condensing	20-90%RH non-condensing (RH @40°C)
Power	220Vac +/-10%, 110Vac version also available. 6VA max	100-120Vac 0.4A Max 200-240Vac 0.2A Max	12-27Vdc CO & NO2: 40mA LPG: 60mA
Battery Back-Up	2 x 12V 7Ah lead-acid batteries (optional)	2 x 12V 7Ah lead-acid batteries (optional)	N/A
Inputs	1-32 addressable Hydra+ gas detectors (RS-485, maximum cable length 1Km typically)	Up to 256 addressable Hydra+ gas detectors. Two RS-485 buses supplied (max. 128 detectors), two extra buses may be added	N/A
Outputs	3 x alarm relays (alarm level 1,2,3) 1 x fault relay All relays are single-pole changeover (SPCO) with contacts rated 1A 24Vdc.	3 x alarm relays (alarm level 1,2,3) 1 x fault relay 1 x power fail relay 1 x battery relay 1 x sounder relay 1 x test relay SPCO contacts rated 16A 230Vac.	RS-485 Modbus
Addressable output modules	One or two 16-way modules can be connected to provide up to 32 additional open-collector type outputs, or up to 32 SPCO relays when used with 8-way relay modules.	One to four 16-way modules can be connected per RS-485 bus to provide up to 64 additional open-collector outputs, or up to 64 SPCO relays when used with 8-way relay modules. 256 outputs maximum.	N/A
Relays can be energised/de-energised, latched/non-latched, time-delayed, pulsed. Contacts rated 16A 230Vac
Digital communications	RS-485 Modbus communication to BMS/DCS/PLC systems. System configuration software and PC lead/converter supplied.	RS-232 port for system configuration via a PC (software and lead supplied), or for Modbus communication to BMS/DCS/PLC systems.	N/A
Event Log	Up to 1000 alarm, power, fault, system events are stored in NVM.	Up to 1000 alarm, power, fault, system events are stored in NVM and on SD card.	N/A
Panel Indication	OLED text display, 96 x 64 pixels LED’s: 6 x red Alarm (alarm level 1,2,3) 2 x yellow Fault 2 x green TX/RX Piezo sounder	Graphic LCD LED’s: 6 x red Alarm (alarm level 1,2,3) 2 x yellow Fault 2 x yellow Over-range 2 x yellow Under-range 2 x green Power/battery 2 x yellow Inhibit/test	N/A
Gases and ranges			CO: 0-300ppm NO2: 0-20ppm LPG/Propane: 0-100%LEL
Sensor life			4 years typical
Approvals	EMC: EN50270, EN61000-6-3: 2001 + A11 (2004), FCC CFR 47 Part 15, ICES-002	EMC: EN50270, EN61000-6-3: 2001 + A11 (2004)

Crowcon Hydra 256 Addressable Car Park Gas Detection System

Control Panels

Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).

T&D Sales Team are Certificated by Crowcon to support the specification and supply of their flammable and toxic gas detectors. Additionally, T&D are CompEx Certificated and competent in understanding hazardous area classifications and site requirements for the sale of explosion and flameproof equipment.

➡ More Crowcon: Portable Gas Detectors Fixed Gas Detectors

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