Q46R ORP Monitor - Other Sensors

ATI's Q46R Monitors provide a wide variety of options to adapt to your application requirements!  The Model Q46R provides reliable monitoring for Oxidation- Reduction Potential (ORP) applications.

Measurement and control of pH is important in a wide variety of industries. Water and wastewater, boiler feed water, high purity water, food processing wash water, chemical plant cooling water, and many other aqueous systems require reliable pH monitoring. ATI’s Model Q46P pH water quality monitor provides the combination of durability, accuracy, and versatility required for virtually any pH monitoring or control application.

ATI’s Q46 platform represents our latest generation of monitoring and control systems. Control features have been expanded to include an optional 3rd analog output or an additional bank of low power relays. 

Automatic Sensor Cleaning:
A blast of air keeps the sensor clean
ATI’s Q-Blast option provides the ideal answer for automatic pH sensor cleaning. Employing a unique “air-blast” cleaning method, sensors can be cleaned as often as necessary without operator attention. Pulses of pressurized air delivered through a nozzle at the tip of the sensor remove accumulated solids from critical sensing surfaces, resulting in accurate and reliable measurements.

The Q-Blast Auto-Clean assembly is housed in a NEMA 4X enclosure suitable for indoor or outdoor use. The system includes an integral compressor and air-pulse control components, with a power supply for the entire air supply system incorporated into the design. A simple connection to the Q46P monitor provides the sequencing for the system and allows the operator to select cleaning frequencies as often as once every hour to as little as once every 999 hours. To insure performance in extremely cold conditions, a thermostatically controlled heater is included in the assembly, allowing operation down to -40°C.
ATI's Q46P Monitors Provide a Wide Variety 
of Options to Adapt to Your Application Requirements!
Conventional Sensors:
There is no single pH sensor that fits every application. Sensors designed for harsh environments do not necessarily work as well in high purity water. Understanding the difference between various sensor types will help you choose the best sensor for your application.

The most widely used pH sensors contain a hydrogen ion sensitive glass measuring electrode and a silver/silver chloride reference element. The reference element is sealed inside the sensor body filled with an electrolyte and electrically connected to the outside solution through one or more porous reference junctions. The glass electrode is in direct contact with the measured solution.

Conventional sensors are a good alternative for clean water applications with conductivity above about 50 microsiemens (μS). They typically provide an operating life of 1-3 years depending on the application and are relatively inexpensive. They are available in submersible or in-line versions and a clear flowcell is also available. Maximum cable length is 25 feet (7.7 m) for this type of sensor. A preamplifier in a NEMA 4X enclosure is available for applications requiring longer distances between the sensor and monitor.
Sensor Options
Choice of either “differential” or “conventional” pH sensors. Differential sensors provide reliable, long lasting service in demanding applications while conventional sensors provide a lower cost alternative for clean water applications.
Automatic “Air Blast” sensor cleaning system available for reducing maintenance in applications where sensor fouling is a problem.
Automatic buffer recognition simplifies calibration.
AC or DC Power Options
Power options include universal 100-240 VAC or 12-24 VDC.
Analog Output Options
Two isolated 4-20 mA outputs are standard, with an option for a third output if required. Default setting provides analog outputs for pH/ORP and temperature.
PID Output
Standard PID control function assignable to one analog output.
Digital Communications
Available for either Profibus-DP, Modbus-RTU, or Ethernet-IP.
Relay Contacts
Three SPDT relays are standard, with relay functions programmable for alarm, control, or trouble indication. Three additional low power relays available as an option.
Flexible Mounting
NEMA 4X (IP-66) enclosure is suitable for wall, pipe, or panel mounting.
Clear Display
Back-lit large LCD display provides clear visibility in any lighting conditions. A scrolling second line on the display provides additional information and programming prompts.

ORP Calibration:

Product Range Price
ORP Calibration Kit
ORP Calibration Kit
Pocket Pro ORP Tester
Pocket Pro ORP Tester
±999 mV
ORP Calibration Kit

ORP Calibration Kit



View Details
Pocket Pro ORP Tester

Pocket Pro ORP Tester



±999 mV
View Details



- Auto-Clean Systems are supplied with 30 ft (or 60 ft) of air tubing depending on the cable length of the sensor selected.

- Pipe mount requires 2" U-bolts

- When ordering a cleaning system, you must select an additional 3 low power relays

- Insertion and Sanitary Mounting Styles must use 316SS Body Material.  The 316SS material is ONLY available with the Insertion or Sanitary Mounting Styles.

- Notes for Sensor Style: Convertible Style, PEEK, with connector & Mounting Style: Convertible with quick disconnect receptacle.
- Sensor with integral connector is not waterproof.  Use for indoors only.

- Requires Sensor Cable (03-0029).



Q46P Product Spec Sheet

Q46P Operators Manual

Q46P Typical System Diagrams

Q46P Q-Blast Auto-Clean option manual

Q46R Product Spec Sheet

Q46P/R Brochure

Q46 Ethernet/IP Communications Manual

Q46 Modbus Communications Manual

Q46 Modbus TCP/IP Communications Manual

More Information
Manufacturer ATI
Call For Price Yes
4-20 mA Output Yes
Relays 2 Alarm Relays + 2 Control Relays
Voltage Output None
Power Requirements 12-30 VDC, 120 VAC or 220 VAC 50/60 hz. please specify desired voltage when ordering
Datalogging No
Warranty 1 Year
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