• Hart provides two data channels, one 4-20 mA analog channel, transmitting the primary measurement variable, and one digital channel, superimposed on the 4-20 mA analog signal, transmitting additional data.
• Remote viewing of measurement data and remote configuration of field device, made possible over the bi-directional digital channel.
• Expanded rangeability enables the Model 40 to go from 0-999% saturation.
• Improved security enhances reliability and validity of the data, and allows assignment of access to the transmitter via user selected security codes. All output configurations are locked behind security. |
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SPECIFICATIONS
Measurement Range: 0 to 999% saturation
Accuracy: ±1% of full scale
Repeatability: ±1 nanoamp (nA)
Stability: ±1 nanoamp/month @ 25°C
Pressure Range: 0 to 9 bar
Outputs: Two 4-20 mA or 0-20 mA isolated outputs. Output 1 includes digital signal 4-20 mA superimposed HART.
Digital Data Transmission Speed: 1.2 kbit/s
Clear Back-lit Display: Back-lit dot matrix LCD (70 x 35 mm), blue on gray-green. The display contrast is compensated for ambient temperature.
Security: Three levels of password protection.
Power: 100 to 127 VAC, 50/60 Hz, 6 watts max.
Rugged Metal Case: The analyzer is housed in a rugged NEMA 4X (IP65) weatherproof, corrosion resistant enclosure of epoxy-painted cast aluminum. Membrane keyboard has tactile feedback.
Dimensions: 5.7 x 5.7 x 5.2 in. DIN size (144 x 144 x 132 mm)
Weight/Shipping Weight: 2.5 lb/3.5 lb (1.1 kg/1.6 kg)
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FEATURES AND APPLICATIONS:
HART: The Model 40 is the DO solution for biotech installations requiring HART communication. This solution offers:
• Digital Information Riding on 4-20 mA Signal
• Bidirectional Communication of Process Data
• Digital Data Speed - 1.2 kbit/s
• Remote Configuration & Calibration
Clear back-lit DISPLAY:
Clear, easy-to-read, back-lit dot-matrix LCD display, with fully descriptive diagnostic messages and easy-to-use interface, spells out each operation in English, French, German, Italian, or Spanish. The display continuously indicates the measured variable in large numerals. The temperature and output current are shown in smaller numerals on the second line, and two user-selectable variables, such as nanoamps, can be displayed on the third line.
Advanced DIAGNOSTICS:
The state-of-the-art, continuous diagnostic capability of the Model 40 eliminates troubleshooting guesswork. The digital signal, superimposed on the 4-20 mA current, allows advanced diagnostics of the DO sensor for improved performance and greater reliability. The raw nanoamps and process temperature data are transmitted on the digital signal.
Automatic CALIBRATION:
Calibrating the DO sensor requires exposing it to a solution containing no oxygen (zero standard) and to a solution containing a known amount of oxygen (full-scale standard). The sensor may also be calibrated in ?process.?
Rugged metal ENCLOSURE:
Rugged NEMA 4X enclosure is a weatherproof and corrosion resistant epoxy-painted cast aluminum. The panel mount version fits standard DIN panel cutouts. There are five electrical conduit places for PG13.5 cable glands or 1/2” fittings. A hinged front cover provides convenient access to wiring.
COMPATIBLE WITH 21 CFR 11 compliant software:
The HART digital signal enables the recording of measurement variables into a 21 CFR Part 11 compliant software package, reducing labor hours in the collection and documentation of measurements by operators.
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WHAT IS HART®
• Digital signal superimposed over standard analog 4-20 mA signal
• 4-20 mA signal carries primary variable, digital signal carries other measurement and configuration data
• Bi-directional digital communication enables remote process monitoring and field configuration
• Process data can be recorded and trended in a 21 CFR Part 11 compliant format with an interface software package
A natural evolution of the 4-20 mA protocol, HART is a digital protocol that is superimposed over a conventional 4-20 mA signal, which still carries the primary variable. This digital signal allows the simultaneous transmission of additional measurements to the control system that will enable advanced sensor monitoring and diagnostics. The digital signal is bi-directional which allows the remote monitoring and configuration of the field device by the use of Asset Management Solutions (AMS) software on any networked PC and thus enables remote troubleshooting and reduces false alarms which waste valuable time.
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