McMaster-Carr logo
    Filter by
    Display Type
    For DIN Panel Cutout Size
    Switching Voltage
    Industrial Info Snippet
    Frequency
    Panel Cutout Height
    Switching Current
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Adjustment Method
    Maximum Oxidation Reduction Potential (ORP)
    Minimum Oxidation Reduction Potential (ORP)
    Conductivity Resolution
    Environment
    Minimum Conductivity
    Mounting Location
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    10 Products

    Multifunction Chemistry Controllers

    Image of Product. Front orientation. Multifunction Chemistry Controllers. LCD Display.
    Image of Product. Front orientation. Multifunction Chemistry Controllers. LCD Display, Washdown Environments.

    LCD Display

    Washdown Environments

    LCD Display

    Image of Product. Front orientation. Multifunction Chemistry Controllers. LED Display.
    Image of Product. Sensor. Front orientation. Chemistry Sensors.

    LED Display

    Sensor

    The same controller can actuate equipment based on pH or oxidation reduction potential (ORP). Using two SPDT (single pole, double throw) relays, these controllers can turn pumps, valves, and other equipment on or off when a reading reaches the actuation point. They also send output signals to a PLC or other receiving device to record data and control equipment. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures. These controllers are often used for water treatment, electroplating, and chemical processing.
    They require a pH or ORP sensor (sold separately).
    LED Display—Controllers with an LED display are more visible in low-light conditions than those with an LCD display.
    Washdown Environments—Controllers for washdown environments are rated IP65 for protection against low-pressure washdowns and dust.
    Controllers
    pH Sensors
    ORP Sensors
    pH
    Oxidation Reduction
    Potential (ORP)
    No. of Control
    Relays
    Switch
    Designation
    Mechanical Relay Switching
    Current @ Voltage
    Analog Output
    Current
    Range,
    pH
    Accuracy
    Range, mV
    Accuracy
    Input Voltage,
    V AC
    Mount
    Type
    For DIN Panel
    Cutout Size
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Each
    Each
    Each
    LCD Display
    2SPDT
    5 amp @ 120V AC
    2.5 amp @ 240V AC
    4 mA to 20 mA0 to 14±0.05 pH-1,999 to 1,999±0.5%120
    240
    Panel1/43 3/4"3 3/4"4 3/4"00000000000000000000000000000000000000000000000
     
    LCD Display—For Washdown Environment
    2SPDT
    5 amp @ 120V AC
    2.5 amp @ 240V AC
    4 mA to 20 mA-2 to 16±0.17 pH-2,500 to 2,500±0.1%120
    240
    Panel1/43 3/4"3 3/4"6 5/8"IP65
    000000000000000000000000000000000000000000000
     
    LED Display
    2SPDT
    5 amp @ 120V AC
    2.5 amp @ 240V AC
    4 mA to 20 mA0 to 14±0.05 pH-1,999 to 1,999±0.5%120
    240
    Panel1/43 3/4"3 3/4"4 3/4"00000000000000000000000000000000000000000000
     

    Conductivity Controllers

    Image of Product. Controller. Front orientation. Conductivity Controllers.
    Image of Product. Sensor. Front orientation. Chemistry Sensors.

    Controller

    Sensor

    Turn pumps, mixers, valves, and other equipment on or off based on the conductivity of a solution. These controllers compare input from a sensor (sold separately) to a programmed actuation point and react when the reading reaches the actuation point. They’re often used in water treatment and electroplating. Automatic temperature compensation standardizes readings at 77° F to prevent inaccurate results in fluctuating temperatures.
    Mechanical Relay Output—Controllers with mechanical relay output directly turn equipment on or off with two SPDT (single pole, double throw) relays.
    Analog Output—Controllers with analog output send 4-20mA signals to a PLC or other receiving device (not included) to record data and control equipment.
    Conductivity Controllers
    Sensors
    Conductivity
    No. of Control
    Relays
    Output Current,
    mA
    Switch
    Designation
    Range
    Accuracy
    Actuation
    Points
    Tolerance
    Input Voltage,
    V AC
    Ht.
    Wd.
    Dp.
    Mounting
    Location
    For DIN Panel
    Cutout Size
    Each
    Each
    Mechanical Relay Output
     
    LCD Display
    2SPDT
    0 to 2 μS
    2 to 20 μS
    20 to 200 μS
    200 to 2,000 μS
    2 to 20 mS
    ±0.5% Full Scale ±1 Digit20 to 0.2 μS
    0 to 2 μS
    0 to 20 μS
    0 to 200 μS
    0 to 2 mS
    100 to 2401 3/4"3 3/4"4 3/4"Panel, Wall1/80000000000000000000000000000000
     
    Analog Output
     
    LCD Display
    4 to 200 to 2 μS
    2 to 20 μS
    20 to 200 μS
    200 to 2,000 μS
    2 to 20 mS
    ±0.5% Full Scale ±1 Digit20 to 0.2 μS
    0 to 2 μS
    0 to 20 μS
    0 to 200 μS
    0 to 2 mS
    100 to 2401 3/4"3 3/4"4 3/4"Panel, Wall1/8000000000000000000000000000000
     
    back to top