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Industrial Fixed

HA20 Digital Gas Controller

HA20 Digital Gas Controller

2-channel gas detection system with configurable control, flexible application and user-friendly operation.

Product overview:

The HA20 digital gas controller provides simultaneous display and alarm functions for two sensor transmitters, along with user-friendly operation and configuration flexibility.

The HA20 accepts sensor inputs for gas concentration and other atmospheric data. It can function as a standalone device or it can be integrated into a fire and gas system. The controller features NEMA4X enclosures and meets Class I, Div. 2, Group A, B, C, D requirements. Explosion-proof wall-mount packaging options are also available.

The controller features a large graphical LCD readout that displays monitored data as bar graphs, trends and engineering units. A magnetic and touch keyboard allows non-intrusive operation in potentially dangerous locations. Cal Mode offers push-button zero / span calibration for direct sensor interface applications. Authorization mode allows blocking of critical configuration variables.

Other standard features include Modbus TCP/IP communications, three independent alarm levels per channel, alarm relays, flexible mounting options and 4-20m inputs. The 4-20 mA inputs are ideal for interfacing with sensor transmitters that may be at long distances from the controller. 24 VDC at 8 watts provides power to an external device. Controllers accept inputs from two.

Additional Features and Benefits:

Improved technology:

  • Accepts inputs from up to two 4-20 mA sensor transmitters. Generates 24 VDC at 8 watts of external device power

Fit for purpose:

  • CSA certified to C22.2 NO. 152 for fuel detection and Class I, Div. 2, Groups A, B, C, D CE
  • Magnetic and touch keyboard for non-intrusive operation in potentially hazardous locations
  • NEMA 4X (Div. 2 certified) and explosion proof wall mount packaging options available
  • Three standard SPDT common alarm relays for HORN, HIGH, WARN or FAULT

Advanced Communications:

  • 3 independent alarm levels per channel. Relay Recognition feature allows silencing external audible devices during existing alarm conditions
  • Graphical LCD readout displays monitored data as bar graphs, trends and engineering units. The alarm LED flashes when new and is steady after being acknowledged
  • Cal Mode offers pushbutton zero / span calibration for direct sensor interface applications. Authorization mode allows blocking of critical configuration variables

Features and Benefits:

  • Accepts inputs from up to two 4-20 mA sensor transmitters
  • Magnetic and touch keyboard for non-intrusive operation
  • 3 independent alarms per channel

Quick Specifications:

  • Display: 128 x 64 pixel graphic LCD with backlit screens
  • Power requirement: 100-240 VAC / 24 VDC
  • Operating temperature: -25°C to +50°C
Data Sheet
Name
Description
File Size
Date
Size
HA-20, HA-40 & HA-71 Gas Detection Controllers Data Sheet
application/pdf 296.65 KB
7/15/2021
296.65 KB
Manuals and Guides
Name
Description
File Size
Date
Size
HA20 2-Channel Controller Technical Manual
application/pdf 2.03 MB
7/15/2021
2.03 MB
Brochure
Name
Description
File Size
Date
Size
HA-20, HA-40 & HA-71Gas Detection Controllers Brochure
application/pdf 443.54 KB
7/15/2021
443.54 KB
Name
Description
File Size
Date
Size
HA-20, HA-40 & HA-71 Gas Detection Controllers Data Sheet
296.65 KB
7/15/2021
296.65 KB
HA20 2-Channel Controller Technical Manual
2.03 MB
7/15/2021
2.03 MB
HA-20, HA-40 & HA-71Gas Detection Controllers Brochure
443.54 KB
7/15/2021
443.54 KB
Image
SKU
Description
alt
HA71N4-16
SIXTEEN CHANNEL NEMA4X CONTROLLER
alt
10-0309
Quad Bridge Sensor Input
alt
10-0221-4
QUAD 4-20MA ANALOG INPUT PCB
alt
10-0216
Bridge / Ec Input Combo
alt
10-0308
Quad Channel 4-20Ma Output
alt
10-0223
Dual 4-20Ma Analog Output Pcb
alt
10-0221-2
Dual 4-20Ma Analog Input Pcb
alt
10-0219
Dual Bridge Input Sensor
alt
HA71N4-8
HA71 in NEMA 4X Enclosure, 8 channel, standard configuration
alt
HA71N4
HA71 in NEMA 4X Enclosure incl Magnetic Keypad for non-intrusive control.