Hallett 4-20mA Wastewater System

UV Pure’s Hallett® 4-20mA Wastewater System, was developed for residential and light commercial wastewater treatment applications, outperforms all conventional UV systems with the ability to treat very low quality wastewaters (low UV transmittance) trouble free.
Standard equipment with this is model is the 4-20mA Unit that allows for remote monitoring of your Hallett system. It provides an analog output of UV Intensity and Net UV Transmittance (UVT) from a Hallett system. The loop-powered transmitter can be used with any device that requires a 4-20mA signal for logging purposes or for process control.

HALLETT® WITH CROSSFIRE® TECHNOLOGY THE MOST EFFECTIVE UV PURIFICATION FOR WASTEWATER

Hallett UV wastewater purification systems, with patented Crossfire Technology, are engineered for simple, efficient multiplex configuration, and treat flows up to 1 MGD (3785 m³/day) for wastewater and reuse applications. Hallett LPHO (low pressure high output) wastewater systems outperform all conventional LPHO wastewater systems and most medium pressure systems with the ability to treat very low quality (low UV transmittance) wastewaters trouble free. Traditionally, low-quality wastewater effluents have required medium pressure systems to reach the required dose. The Hallett wastewater system is the first of its kind and the only LPHO technology that matches and/or beats the performance of conventional medium pressure systems which are significantly more expensive from a capital and operating cost perspective. Each Hallett system for wastewater is factory sized and programmed to achieve target treatment requirements. Hallett systems are effective in a broad range of pre-treatment wastewater quality. They are also engineered to prevent operator exposure to potentially hazardous wastewater since no manual quartz cleaning is required. The Hallett 4-20mA offers these unique product features:

LCD Display - an LCD display is a standard feature indicating both UV Sensors’ input values and transmitted values.
UV Intensity Output – a normalized signal (0-100%) proportional to the UV intensity of the UV lamp is transmitted.
Net UV Transmittance (UVT) Output – a normalized signal (0-100%) proportional to the Net UV Transmittance of the water is transmitted.
Factory Calibrated – both span and offsets are preset for immediate field use.
Mounted On Board – the 4-20mA unit is installed within the Hallett 30 unit with the display located on the front panel.

Broadest Range of Pre-treatment Conditions
Parameter	Pre-Treat Conditions
TSS	< 20 mg/L
BOD	< 20 mg/L
Turbidity	< 4 NTU
UVT	As low as 45%

STANDARD ACCESSORIES

4-20mA Unit
Flexible stainless steel hook-up hoses
Power Conditioner

OPTIONAL ACCESSORIES

Wireless Remote Monitor
Automatic Shut-off Solenoid Value
Hallett Diagnostic Tool
Purge Valve

SPECIFICATIONS

Model	Hallett 30-1.5" (WW) w/ 4-20 mA
PART NUMBER (115 Volt)	C000019
PART NUMBER (240 Volt)	C000024
Validation / Certification	Engineered to meet dosing and disinfection requirements of wastewater effluent. Typically a minimum dose of 30 mJ/cm² to reduce coliform to < 200 counts / 100ml. Higher doses available for re-use and non-detect applications ( < 2 counts / 100 ml). In use on Title 22 applications. Approved by the MENV for use in Quebec.. Certified to AB 1953.
UV Dose	Minimum dose of 30 mJ/cm² at end of lamp life
Minimum UV Transmittance	45%
Max Flow Rate	25 US gpm (95 L/min) (5.68 m³/hr) @ 65% UVT, 30 mJ/cm² dose (flow rates depend on required dose and source water UVT)
Water Pressure	0 psi (69 kPa) to 100 psi (690 kPa); units are tested to 240 psi (1.6 MPa)
Dynamic Flow Restrictor	No internal restrictor installed
Pressure Drop at 75% of nominal flow capacity	1 psi (7 kPa)
Multiplexed Flow Capacity	Engineered for multiple systems in parallel, for flow rates up to 1 MGD (696 US gpm) (2629 L/min) (158 m³/hr)
Redundancy	Additional backup systems can be added cost effectively
Solenoid Shut-Off Valve	Automatic shut-off valve available as option
Inlet and Outlet Connections	1.5" flexible FIP connection for easy installation
Voltage	Models available in either 115V or 240V configurations (please see different part numbers above)
Protection from Power Fluctuations	115V Models include power conditioner that meets UL 1449. External power conditioner recommended on 240V models
Maximum Power Consumption	175W
Electrical Certification	Intertek ETL (UL, ULC and CE equivalent)
Lamps	Low pressure, high output proprietary lamps contain up to 30 mg of mercury (Hg); rated for 9000 hours (1 year) of continuous use
Maintenance	Onboard 9000 hour lamp life with lamp hour countdown to end of life. Automatic self-cleaning device prevents quartz sleeve from fouling and requires no maintenance
Electronic Ballast	Auto power-regulated smart ballast; protected from power fluctuations
Self-Cleaning	Stainless Steel patented automatic wiper-blade system keeps quartz free from scaling or bio-film
On-Board Micro-Processor and Monitor	Patented dual smart UV sensors continuously monitor UV dose, lamp intensity (UVI) and water transmittance (UVT); on-board LED's indicate system status: OK, warning or alarm conditions. Optional External digital monitor (HDT) displays above in millivolts.
4-20 mA Analog Output	Installed as standard. Provides two analog signals (4-20 mA) for both UV Intensity (UVI) and water UV Transmittance (UVT) and allows for dose to be calculated in real time.
Dry Contacts	Included as standard for remote alarms, auto-dialer integration, or similar.
Remote Alarm	Included as standard on all models.
Dimensions (H, W, D)	32 x 8 x 10" (830 x 220 x 260 mm)
Weight - Dry	32 lbs (14.5 kg)
Weight - Wet	34.2 lbs (15.5 kg)
Warranty	1 year limited warranty on bulbs and sensor probes; 3 year limited warranty on electrical components and quartz sleeve; 5 year limited warranty for structural, hardware and mechanical components
EPA FIFRA Certified	EPA Est. No. 075213-CAN-001
Patents	Patented in US 6,707,048, Canada 2,463,503, Australia 2002333084, Mexico 248805, Patents pending in Europe, Eurasia, Japan, UK

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Videos

UV Pure's Crossfire Technology uses dual smart UV sensors that continuously monitor UV Dose, Lamp Intensity (UVI), and net UV Transmittance (UVT). That means a disinfection dose 2.4 times greater than conventional UV systems for the same energy input and cost.

UV Lamp removal is fast, safe and easy on all UV Pure systems like this Hallett 30 system for wastewater and potable water treatments. There is no extra, wasted space required for lamp removal. Hallett's are equipped with UV Pure's patented Crossfire Technology.

Flexible stainless steel hook-up hoses mean no hard piping and are standard on all UV Pure Hallett wastewater and potable water treatment systems.

Only UV Pure's patented Crossfire Technology provides automatic mechanical self-cleaning eliminating quartz fouling from minerals and bio-film. It also prevents operator exposure to potentially toxic wastewater. With Crossfire Technology there is no risk of false alarms due to fouling.

METEX CORPORATION LIMITED

Hallett 4-20mA Wastewater System

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