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Honeywell's extensive line of DL4000 conductivity cells is compatible with the DL423 Sensor Module. These cells are ruggedly constructed for reliable, continuous measurement of electrolytic conductivity up to 140ºC and 250 psig.

The DL4000 line of conductivity cells are used with the DL423. An integral or remote configuration is available, depending on the process installation.
The integral conductivity cell design can be used for in-line and flow cell types of installations. For immersion or ball valve mountings, a remote cell design is required. The remote cell design employs a cable integral to the cell that is connected to the DirectLine Sensor Module.

The conductivity cell bodies are constructed of PolyEtherSulfone (PES) for excellent corrosion resistance in a wide range of applications. Cell constants are available for applications ranging from ultrapure water to acid/base concentrations.

DL4000 Conductivity Cells have an EEPROM with the cell constant and cell calibration factor programmed into it.

These values are automatically uploaded into the DirectLine Sensor Module. This eliminates the need for the user to manually do this and reduces configuration errors.

Features:

DL4000 Conductivity Cells

• Corrosion resistant design for a variety of process applications
• Automatic upload of cell constant and cell calibration factor from cell EEPROM reduces set-up time.
• Integral electronics with local HMI simplifies installation and shortens calibration times.
• Modular plug-in construction simplifies electrode replacements.

DirectLine Transmitter

•  Local display and keypad facilitates quick set-up, calibration, and operational activities.
• ½" NPT conduit connection provides increased protection and noise immunity of output cable
• Plug-in modular design allows sensor to be safely removed and replaced without cycling power on the electronics module.
• Electronics and sensor diagnostics reduces troubleshooting times.
• Trim value or 1-point solution calibration options that accommodate individual calibration techniques and reduces calibration time.
• Temperature Sensor calibration options for more accurate measurements.
• Playing card-sized guide facilitates simple, correct, and consistent calibration and configuration.
• Watertight sensor connection for reliability in submersion applications.
• Global approvals including:
  • CE Mark for industrial applications
  • UL General Purpose
  • CSA General Purpose
  • IP66 Type 4x Enclosure
  • FM Class I, Div. 1 (Intrinsically Safe)
  • FM Class I, Div. 2 (non-incendive field wiring)

The Analytical Process Analyzer (APT) 4000 series offers the widest available selection of advanced features in a reliable and economical instrument. The advanced features of the APT4000 analyzer guarantee complete reliability. The APT4000 continuously monitors sensor and analyzer electronics and immediately displays diagnostic information at the onset of a problem. If an error or diagnostic is found, the analyzer will indicate the appropriate error code or pictograph, blink a red LED and adjust the error current to 22 mA if desired. A manual loop-back check is available to test the integrity of the 4-20 mA output.

APT4000 has a large front display for quick recognition of process parameters and diagnostics even at a distance. Only the APT4000 employs visual feedback to reduce setup and maintenance times and to minimize errors made during calibrations. Visual feedback refers to pictograph type characters that appear on the display both to prompt and respond to operator and process changes. Pictograph type characters also appear during problem conditions to report diagnostics for easy troubleshooting. There is even a Sensoface pictograph that provides constant feedback to the operator on whether or not there is a problem with the cell. These easily learned and recognized symbols make the APT4000 an easy-to-use instrument in any language.

The APT4000TC analyzer continuously measures conductivity, chemical concentration and salinity in industrial processes in the chemical, food and dairy, pulp and paper, refinery, metals and other industries.

The APT4000's NEMA 4X/IP65-rated enclosure is specifically designed to meet the measurement needs of Class I, Division 2 (non-incendive) and general purpose areas. The analyzer can be used with Honeywell toroidal cells or electrically compatible sensors. The analyzer has a universal (20-253 V AC/DC, 45-65 Hz) power supply with one 4-20 mA output, two high/low alarm relays, a diagnostic relay, and a wash relay.

Each Honeywell conductivity cell has unique measuring characteristics when shipped from the factory. It is possible that these characteristics will vary slightly depending upon the installation as well. For optimum accuracy, a single-point calibration in a known conductivity solution should be performed when a new cell is installed. Further calibration adjustments are also available for enhanced accuracy in special applications.

Features:

• Large display with easy-to-read 0.75 inch measured value digits
• Simple operator interface with basic pictographs
• Application in Class I, Division 2 or general purpose areas
• Continuous diagnostics for monitoring calibration, cell health and analyzer self-test
• Manual loop-back check for integrity of 4-20 mA output
• NEMA 4X, IP65 plastic enclosure
• Wall, pipe or panel mounting
• Easy installation with preassembled empty enclosure and plug-in terminals
• Optical alarm with relay contact
• Quick response time (less than five seconds per step change)
• Dedicated high/low alarm relay
• Integrated current source for simple checking of peripheral device

Honeywell's DirectLine transmitter modules are the next generation family of analytical transmitters. Unique architecture in the DirectLine transmitters combines the latest in microelectronics technology with the proven performance of Honeywell's unique sensing technologies; providing unequaled savings during installation, startup, operation, and maintenance.  For contacting conductivity measurement the DirectLine transmitter modules can be mounted integrally or remotely with DL4000 conductivity cells.

The DirectLine's architecture consists of an electronics transmitter module and a sensor which may be mounted integral to the transmitter or remotely eliminating the need and added cost of a separate analyzer or transmitter. The transmitter modules are intrinsically safe, in a weatherproof, corrosion-resistant sealed composite enclosure.   

Completing the system is a Honeywell contacting conductivity cell connected to the sensor side of the transmitter and a 4-20 mA weatherproof output cable on the power/output side. The transmitter is designed for outside use in harsh environments where moisture, dust and chemical attack may be present.  For special mounting applications, a remote mounting option is available which connects the electronics module to the Conductivity cell via a cable. The module can be mounted on a 2" pipe, wall or DIN rail.

Signal output of the DirectLine transmitter is a standard 4-20mA output proportional to conductivity range determined by the cell and transmitter selection. The transmitter may be connected to any host monitor or control device that accept 4-20 mA loop powered inputs including: :

• Single loop Honeywell or competitive controllers
• Honeywell's HC900 modular control systems
• PLCs with analog inputs
• DCS systems
• Honeywell's Trendview data acquisitions systems

Features:

• Plug-in modular design allows probe to be safely removed and replaced without cycling power on the electronics module.
•  ½" NPT conduit Connection gives increased protection and noise immunity of output cable.
• Local display and keypad facilitates quick set-up, calibration, and operational activities.
• Electronics and probe diagnostics reduces troubleshooting times.
• Simple menu driven buffer or calibration trim options that reduce calibration time.
• Playing card-sized guide facilitates simple, correct, and consistent calibration and configuration.
• Watertight sensor connection for reliability in submersion applications.
• Global approvals:
    -UL General Purpose
    -CSA General Purpose
    -IP66 Enclosure
    -NEMA4X Enclosure
    -CE
    -FM Class I, Div 1 (Intrinsically Safe)
    -FM Class I, Div 2 (non-incendive field wiring).

The Analytical Process Analyzer (APT) 4000 series offers the widest available selection of advanced features in a reliable and economical instrument. The advanced features of the APT4000 analyzer guarantee complete reliability. The APT4000 continuously monitors sensor and analyzer electronics and immediately displays diagnostic information at the onset of a problem. If an error or diagnostic is found, the analyzer will indicate the appropriate error code or pictograph, blink a red LED and adjust the error current to 22 mA if desired. A manual loop-back check is available to test the integrity of the 4-20 mA output.

APT4000 has a large front display for quick recognition of process parameters and diagnostics even at a distance. Only the APT4000 employs visual feedback to reduce setup and maintenance times and to minimize errors made during calibrations. Visual feedback refers to pictograph type characters that appear on the display both to prompt and respond to operator and process changes. Pictograph type characters also appear during problem conditions to report diagnostics for easy troubleshooting. There is even a Sensoface pictograph that provides constant feedback to the operator on whether or not there is a problem with the cell. These easily learned and recognized symbols make the APT4000 an easy-to-use instrument in any language.

The APT4000 series continuously measures conductivity, resistivity and salinity in industrial processes within the power, chemical, pharmaceutical, pulp and paper, and water quality industries.

The APT4000's NEMA 4X/IP65-rated enclosure is specifically designed to meet the measurement needs of Class I, Division 2 (non-incendive) and general-purpose areas. The analyzer can be used with Honeywell conductivity cells or electrically compatible sensors. The analyzer has a universal (20-253 V AC/DC, 45-65 Hz) power supply with one 4-20 mA output, two high/low alarm relays, a diagnostic relay, and a wash relay. Software (USP24) can be used on-line for monitoring the conductivity of purified water or water-for-injection in the pharmaceutical industry.

Each Honeywell conductivity cell comes supplied with one of four sensor factors (0.01, 0.1, 1.0, and 10). The lower cell constants are used for low conductivity water or resistivity measurements, while the higher ones are used for higher conductivity water or salinity measurements. Calibration of the cells is easy by either utilizing a factory-determined calibration factor or performing a simple one-point calibration.

Features:

• Large display with easy-to-read 0.75 inch measured value digits.
• Simple operator interface with basic pictographs
• Application in Class I, Division 2 or General Purpose areas
• Continuous diagnostics for monitoring calibration, cell health, and analyzer self-test
• Manual loopback check for integrity of 4-20 mA output
• USP 24 Software with USP control limit capabilities.
• NEMA 4X, IP65 plastic enclosure
• Remote "hold last measured value" capability.
• 2nd Parameter Set programmable for alternative applications.
• Wall, pipe or panel mounting
• Easy installation with preassembled empty enclosure and plug-in terminals
• Optical alarm with relay contact
• Quick Response Time (less than five seconds per step change)
• Dedicated high/low alarm relay
• 2 Current Outputs available with the second one assigned to temperature.
• Sensocheck monitors condition of the Conductivity Cell
• PID (Pulse length and Pulse frequency) software installed.