Water & Waste Water 

Control Systems

STELTEC Inc © copyright  |  Privacy Policy

HL1 ORP/pH Controller

HL1 is a single channel ORP/pH controller suitable for single basin monitoring and control  within municipal and industrial applications.

Inputs:

• 120/240 V AC
• ORP or pH sensor connected directly or through a remote pre-amp
• Sensor input is isolated
• Sensing accuracy: +/- 0.1% per year
• Range: -1000 to 1000 mV or 0.0 to 14.0 pH units
• 4-20 mA analog input (used for flow readings)

Outputs:

• Fully rangeable, 4-20 mA recorder output with +/- 0.02 mA accuracy
• Used with devices up to 1000 ohms
• 6 relay outputs
• 4-20 mA feeder output
• 3 Control modes: TBP / NTL / Monitor
• General alarm relay
• 120/240 VAC, 5 amp relay for automatic sensor cleaning

P.O. Box 318, Towanda, IL 61776 | 815-315-3851

Features:

• 3.5" color touch screen
• Live trending
• Auto-sensitivity tuning
• SD data logging
• Battery backup
• Start-up recall
• Alarm overrides
• NEMA 4X Enclosure
• Slave support

Communications:

• Ethernet capable
• Web-based enabled
• Modbus