Envco – Environmental Equipment

The CT2X incorporates 4-pole electrode cell measurement technology. This technology reduces fringe field interference errors, lessens inaccuracy caused by polarization effects, and lowers contact resistance problems. Four-pole electrode technology also allows users to work with one electrode over a wide range of conductivity.The conductivity probe is constructed of epoxy/graphite, making it extremely durable for use in rugged field conditions. To clean, simply scrub with a small brush.

FEATURES
• RS485/RS232 interface
• Also measures TDS in mg/L
• 100,000+ records / non-volatile
• Linear and nLFn temperature compensation
• Small diameter (0.75")Conductivity, temperature & time with pressure/temperature option
• 10 microSiemens/cm to 100,000 microSiemens/cm
• 316 stainless steel, Viton and Teflon construction
• Polyethylene, polyurethane and FEP Teflon cable options
• MODBUS protocol for RTU & PLC applications
• Easy export to spreadsheets & databases

OPERATION
The CT2X is powered internally with one 3-volt lithium battery or with an external auxiliary power supply for data intensive applications. Works on alkaline, rechargeable, and other auxiliary power systems.

The CT2X comes with powerful, easy-to-use, Windows based Aqua4Plus software,affording the user extensive control, including real time monitoring, flexible programming, easy field calibration, and both tabular and graphic data displays.

Aqua4Plus offers easy, one-point calibration. Simply put the probe in the desired standard, and then use the built-in field calibration utility to adjust to the correct conductivity output.

Linear and non-linear temperature compensation features add flexibility to this sensor. The user can enter specific linear temperature coefficients to match the material being sampled.

Alternately, for natural waters, which do not have linear temperature coefficients, the CT2X has a non-linear natural water mode meeting DIN EN 27888 standards.

Conductivity/Temperature Module
BODY Body Material 316 stainless steel
Probe Material Epoxy/Graphite Electrode 4-pole
Wire Seal Materials Viton and Teflon
Terminating Connector Available
Weight Lessthan 1 lb.

CABLE (Optional downhole communication)
OD 0.28" maximumBreak Strength 138 lbs.Maximum Length 2000 feetWeight 4 lbs. per 100 feet

CONDUCTIVITY
Static Accuracy +/-0.5% of measured value
Resolution 0.1 for microSiemens 0.001 for milliSiemens
TDS 0 - 2000 mg/L
Cell Constant .55 (standard)

LEVEL
Static Accuracy +/-0.1% FSO (maximum) (B.F.S.L. 25c)* +/-0.06% FSO (typical)
Temperature Error +/-0.5% FSO (maximum)(reference 25c) +/-0.25% FSO (typical)
Maximum +/-0.25% FSO Zero Offset at 25c
Resolution 16 bit
Ranges various from 5-300 psi absolute and gauge
Over Range Protection 2x (except 300 PSIA)

TEMPERATURE
Accuracy +/-0.2c (at 25c)
Resolution 0.1c

TIME
Accuracy +/-6 sec/day (maximum) +/-2 sec/day (typical)
Operating Temp. Range 0cto 80c

BODY
Body Material 316 stainless steel
Wire Seal Materials Viton and Teflon
Terminating Connector Available
Weight Less than 1 lb.

Ordering Information
CT2X Conductivity/Temperature Sensor with Datalogging. 1 MB memory, 0.75” diameter, twist open housing (w/ cable hook-up, waterproof connector, desiccant tube, if needed)
3C180 Conductivity/Temperature Logger

Cabled or Cableless
PSIA = Absolute pressure is zero referenced against a perfect vacuum, so it is equal to gauge pressure plus atmospheric pressure

PSIG = Gauge pressure is zero referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. Negative signs are usually omitted.

Downhole Communications Cable (list cable length needed)
3C186 Conductivity/Temperature/Pressure 15 PSIG
3C187 Conductivity/Temperature/Pressure 30 PSIG
3C189 Conductivity/Temperature/Pressure 50 PSIG
3C191 Conductivity/Temperature/Pressure 100 PSIG
3C193 Conductivity/Temperature/Pressure 300 PSIG

Cableless units deployed by SS wire
3C188 Conductivity/Temperature/Pressure 30 PSIA
3C190 Conductivity/Temperature/Pressure 50 PSIA
3C192 Conductivity/Temperature/Pressure 100 PSIA
3C194 Conductivity/Temperature/Pressure 300 PSIA

Titanium Option available