AS3035

Summary

Product Identification

The unit type AS3035 is a controller for cooling tower plants, applicable for automatic monitoring and control.

Features

User Interface

• Monochrome LCD display (16x2 characters)
• Control through six keys
• Five LEDs for process and alarm indication
• Acoustic signal for alarm
• Multiple language support: English, French, German, Dutch, Spanish, Italian, Swedish, and Danish

Inputs

• 4x inputs for potential-free switches
• 1x conductivity meter input
• Optional (with circuit board IF2030): 1x additional input for potential-free switch

Conductivity Meter

• Automatic range switching
• Supports cell constants from 0.01 to 10.00 cm⁻¹
• Measurement range from 0.5 to 100,000 µS/cm (depending on the used cell)
• Manual temperature compensation
• Uses a capacitive cell

Outputs

• 1x powered relay output
• 2x relay outputs (dry contact)
• Optional (with circuit board IF2030): 2x additional relay outputs (dry contact)

Memory

• Programming configuration is stored in non-volatile memory and retained during power loss.

Enclosure

• Suitable for wall mounting
• IP65 rated

Power Supply Options

• 24 VAC input / 24 VAC output
• 115 VAC input / 115 VAC output
• 230 VAC input / 230 VAC output
• 115 VAC input / 24 VAC output
• 230 VAC input / 24 VAC output

Ordering Information

• AS3035: Standard wall-mounted unit with 1 powered relay output and 2 dry contact relay outputs.
• AS3035IF: Unit with 1 powered relay output, 4 dry contact relay outputs, and 1 temperature meter.

Power supply options are appended to the base model code:

• 24V: 24 VAC / 24 VAC
• 115V: 115 VAC / 115 VAC
• 230V: 230 VAC / 230 VAC
• 115/24V: 115 VAC / 24 VAC
• 230/24V: 230 VAC / 24 VAC

Disclaimer

This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror