Analytical Technology 4E-Conductivity Monitor, Model Q46C4
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Model Q46C4 4E Conductivity Monitor

Brand: Analytical Technology Inc
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While the theory of monitoring conductivity is simple, in practice it can be very frustrating. 

While simple 2-electrode sensors are inexpensive and can provide accurate data, continuous monitoring of even relatively clean water can foul the electrodes and degrade the measurement. 

Maintaining accuracy is made more difficult when the amount of solids dissolved in the process varies over a wide concentration range. 

ATI’s Q46C4 4-Electrode Conductivity Monitor is the answer for monitoring almost any water-based process. 

Drinking water, plating bath solutions, cooling water, process wash water, or virtually any other aqueous system can be monitored accurately and reliably. 

The unique drive/control scheme used in the 4-electrode system allows a single sensor to be used in conductivity ranged from 0-2,000 μS to as high as 0-2,000 mS (0-2 S.) For chemical mixing applications, a concentration display can be selected.
Features
  • Concentration version for direct display of chemical concentrations. 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 conductivity and temperature. Extra Outputs:
  • Expansion board to add a third 4-20 mA Analog output. Flexibility:
  • Wide range capability, with selectable ranges of 0-2000 μS up to 0-2.000 S provide maximum application flexibility. AC or DC Power Options:
  • Power options include universal 100-240 Vac +/- 10% or 12-24 Vdc. PID Output:
  • Standard PID control function assignable to one Analog output. Digital Communications:
  • Communication options for 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 condition. A scrolling second line on the display provides additional information and programming prompts.

Specifications

Brand

Display Range

  • 0-2000 μS
  • 0-2.000 / 20.00 / 200.0 / 2000 mS
  • 0-2.000 S

Accuracy

  • 0.5 % of Selected Range

Repeatability

  • 0.3 % of Selected Range

Non-Linearity

  • 0.1 % of Selected Range

Temperature Drift

  • 0.01 % of span/°C

Power

  • 100-240 Vac ± 10 %, 50/60 Hz, 10 VA Max.
  • 12-24 Vdc, 500 mA Max.

Analog Outputs

  • Two Isolated 4-20 mA, 500 Ω Load Max. (3rd Output Optional)

Relays

  • Three SPDT, Contacts Rated 6 amp @ 250 Vac, 5 amp @ 24 Vdc (3 Additional Low Power SPST Non-Isolated Relays Optional)

Display

  • 4-digit, 0.75” Numeric LCD with 12 Character Second Line, LED Back Light.

Enclosure

  • NEMA 4X Polycarbonate V-0 Flammability

Operating Conditions

  • -20 to 60° C (-4 to 140° F)

Weight

  • 6 lbs (2.7 kg) with Sensor

Sensitivity

  • 0.05 % of Span

Digital Output

  • Profibus-DP, Modbus-RTU, or Ethernet-IP

Mounting

  • Wall Mounting Kit Standard, Panel Mount Bracket and Pipe U-Bolts Available

Size

  • 5.6” W x 4.9” H x 6.4” D

Sensor Type

  • 4-Electrode

Sensor Materials

  • PEEK with Titanium Electrodes

Sensor Cable Length

  • 15 ft (4.6 m) Standard, 60 ft (18.3 m) Max. with Junction Box

Sensor Temperature Limits

  • 0-125° C (14° to 257° F)

Sensor Pressure Limit

  • 100 psig Max.

Sensor Connection

  • 1” NPT for Convertible-Style

Flowcell Sensor

  • 1-1/4” NPT with Quick Disconnect Cable

Sensor Temperature Element

  • Pt1000 RTD

  • Drinking Water
  • Plating Bath Solutions
  • Cooling Water
  • Process Wash Water
  • Most Other Aqueous Systems

Documentation

Outline Drawings

Specifications

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