The XDP display package provides a microprocessor-based, explosion-proof control platform for the XMO2 thermoparamagnetic oxygen transmitter, the XMTC thermal conductivity transmitter or any other 4-20mA output transmitter.

The rugged XDP display/controller is microprocessor-based and certified to Class 1, Division1, Groups B,C,D and ATEX EEx d IIC T6. Most importantly, the unit features an infrared, thru-glass touch keypad, which allows complete access to all of the XDP user programmable features including output type, range selection, automatic calibration, and error handling. The IR keypad feature allows field engineers to interact with the analyzer through the front display without the need of opening the enclosure and thus avoiding the need for traditional hot work permits.

Optional XDP software for use with the XMTC for hydrogen analysis on hydrogen cooled electric generators provides a powerful platform for this application. During normal hydrogen cooled electric generator startup, air is displaced with carbon dioxide, which in turn is displaced with hydrogen. Because of its high thermal conductivity, hydrogen cooled generators use hydrogen as the purge gas to cool the generator and maximize its output and life. During shutdown, hydrogen is displaced with carbon dioxide, which is then purged with air. Carbon dioxide is used as the intermediate purge gas during the startup and shutdown stages for safety, as air (20.9 percent oxygen) and hydrogen are a potentially explosive gas mixture.

The TMO2D is an optional display and control module that enhances the performance and operation of transmitters such as the XMO2, XMTC or O2X1. It provides a two-line x 24-character backlit LCD display, display and option programming via keyboard, recorder outputs, alarm relays, and relays for driving sample system solenoids for automatic zero and span calibration, as well as a 24 VDC power supply for the transmitter. The TMO2D also provides microprocessor-based oxygen signal compensation for improved accuracy for the TMO2 transmitter.

Autoverification/Autocalibration

The TMO2D provides long-term, hands-off operation with this optional feature. When initiated, the TMO2D controls solenoid valves in the sample system to bring zero and span gases to the transmitter. Then TMO2D software compares the calibration gas readings with factory data to verify proper calibration. If an adjustment is necessary, the TMO2D makes corrections automatically and notifies the user via the front panel display and alarm contacts.

The PSDA is a low-cost option for general purpose applications requiring a local or remote display. It is intended to be used in conjunction with a variety of 4 to 20 mA output transmitters.

A separate power supply is needed for transmitters with power requirements that exceed 24 VDC at 30 mA. Please consult GE for details.

The Moisture Image Series 1 is the multichannel, multifunction top-of-the-line model in the GE moisture series analyzer family. The Moisture Image Series 1 measures moisture, pressure and temperature in non-aqueous liquids and gases. There is also an option for measuring oxygen concentration in gases. In addition, the auxiliary inputs can accept readings from any sensor with 0/4 to 20 mA or 0 to 4 V output, including a variety of GE process control instruments. This feature makes the Moisture Image Series 1 a true multifunction analyzer, providing cost savings through system integration.

For additional cost savings, the Moisture Image Series 1 is available with up to six channels to significantly reduce the cost-per-measurement point while providing a variety of configurations to meet the needs of specific applications.

This state-of-the-art instrument features simultaneous real-time display of six points of moisture, oxygen, temperature, pressure and other data from up to six channels on a large, backlit liquid crystal display (LCD). Menu-driven function keys provide easy access to data displayed in matrix and line-graph formats.

The Moisture Image Series 1 is complemented by the Moisture Image Series probe. It measures moisture, temperature and pressure, eliminating the need for additional external pressure transmitters and related power supplies. It is suitable for laboratory and industrial moisture measurement applications in gases and non-aqueous liquids over a wide range of process conditions. The Moisture Image Series 1 can also be used with any Panametrics moisture probe configuration. All moisture probe calibrations are NIST traceable.

The Moisture Monitor Series 3 Analyzer (MMS 3) analyzer is a single- or dual-channel analyzer with a two-line, alphanumeric LCD for moisture, oxygen, temperature and other parameters. It is available as a battery-powered portable with data logging, making it ideal for spot sampling and storing data from one or two locations without reprogramming. It also offers built-in intrinsic safety for all sensor inputs. The MMS 3 is available in rack, bench, panel, weatherproof and explosion-proof packages.