Honeywell's DirectLine electronics module will change the way you measure pH (DL421), ORP (DL422), conductivity (DL423) and dissolved oxygen (DL424, 425)! Each module is packaged in an industrially rugged enclosure that can be mounted integrally to your electrode, or remotely mounted for easy access. Just add a sensor and mounting, and you're ready to go!

 

• A Fraction of the Cost of Standard Analyzer/Cable/Sensor Configurations!
• Local Display and Keypad for Easy Setup, Calibration, and Operation
• Built-In Diagnostics for Electronics and Sensor Reduce Troubleshooting
• Sample or Auto Buffer Options for Fast Calibration
• Direct 4-20 mA Output!!! No Need for Dedicated Analyzer or Transmitter
• Sensor Can Be Safely Removed and Replaced Without Cycling Power

 

Type	Description	Size
	Catalog Section: Analytical Instruments and Systems	3.5MB
	Honeywell Smart Sensors and Analytical Instruments Brochure	533K
	Honeywell DL421/422 DirectLine Sensor for pH/ORP Color Brochure	149KB
	Honeywell DL421/422 DirectLine Sensor for pH/ORP Specification	64KB
	Honeywell DirectLine Sensor Transmitter Modules Model Selection Guide (All Models)	48KB
	Honeywell Easy Selection Guide for DL421 Durafet II pH Measurement System	50KB
	Honeywell DL1000 Electrode Mountings Model Selection Guide (Durafet II/DL421 Sensor Module)	11KB
	Honeywell Easy Selection Guide for DL421 Meredian II pH Measurement System	47KB
	Honeywell DL2000 Electrode Mountings Model Selection Guide (Meredian II/DL421 Sensor Module)	12KB
	Honeywell DirectLine Transmitter Module Users Manual for pH Measurement	665KB
	Honeywell DL421 DirectLine pH Module Quick Configuration Card	17KB
	Honeywell Easy Selection Guide for DL422 Meredian II ORP Measurement System	47KB
	Honeywell DL3000 Electrode Mountings Model Selection Guide (Meredian II ORP/DL422 Sensor Module)	12KB
	Honeywell DirectLine Transmitter Module Users Manual for ORP Measurement	565KB
	Honeywell DL422 DirectLine ORP Module Quick Configuration Card	11KB