bennypass.com - Magnetrol Eclipse 705 Guided Radar Level Transmitter 705-510A-110 + 7ES-K438-036

Magnetrol Eclipse 705 Guided Radar Level Transmitter 705-510A-110 +

7ES-K438-036

The Enhanced Eclipse® Model 705 Transmitter is a looppowered, 24 VDC liquid-level transmitter based on the revolutionary Guided Wave Radar (GWR) technology. Encompassing a number of significant engineering accomplishments, this leading-edge level transmitter is designed to provide measurement performance well beyond that of many traditional technologies, as well as “through-air” radar. The innovative enclosure is a first in the industry, orienting dual compartments (wiring and electronics) in the same plane, and angled to maximize ease of wiring, configuration, and data display.
One universal transmitter can be used with all probe types and offers enhanced reliability for use in SIL 2/SIL 3 hardware systems. ECLIPSE supports the FDT/DTM standard and, with the PACTware™ Frame Program, allows for additional configuration and trending flexibility.

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The Magnetrol 7ES is a type of Guided Wave Radar (GWR) level transmitter that uses Time Domain Reflectometry (TDR) technology. The working principle involves sending electromagnetic pulses down a probe immersed in the liquid. When a pulse hits the liquid surface, it is reflected. High-speed circuitry measures the time it takes for the pulse to travel to the surface and back, allowing for a precise calculation of the liquid level. .

Here's a breakdown of the working principle

Electromagnetic Pulse Generation: The transmitter sends a high-frequency electromagnetic pulse down the probe.
Pulse Reflection: The probe acts as a transmission line, and when the pulse reaches a surface with a different dielectric constant (the liquid's surface), it is reflected back to the transmitter.
Time-of-Flight Measurement: Sophisticated, high-speed electronic circuitry precisely measures the time it takes for the pulse to travel from the transmitter to the liquid surface and return.
Level Calculation: Based on the known speed of light, the measured time-of-flight allows the transmitter to accurately calculate the liquid level.
Signal Output: The transmitter converts this level measurement into a standard output signal, such as a 4-20mA signal, which can be sent to a control system or display.

Key Features:

TDR Technology: Utilizes time domain reflectometry to provide highly accurate level measurement.
Probe-Based: A probe immersed in the process provides a stable and reliable measurement path.
Versatility: Suitable for various media, from water-based liquids to hydrocarbons, and can detect overall level or the interface between two liquids of different dielectrics.
High Accuracy: Capable of delivering millimeter-level accuracy, even with some challenging liquids

Full Datasheet

Transmitter Feature

Manufacturer : Magnetrol
Product No. : 705-510A-110
Model : Eclipse 705 - Radar sensor for continuous level measurement of liquids
BASIC MODEL NUMBER: 705 - ECLIPSE Guided Wave Radar Level Transmitter
POWER: 5 - 24 VDC, Two-wire
SIGNAL OUTPUT AND ELECTRONICS: 10 - 4–20 mA with HART – SIL 1 standard electronics (SFF of 85.4%)
ACCESSORIES: A - Digital display and keypad
MOUNTING/CLASSIFICATION: 1 - Integral, General Purpose & Intrinsically Safe (FM & CSA), Non-incendive (Class I, Div. 2
HOUSING: 1 - Cast aluminum, dual compartment, 45° angle
CONDUIT CONNECTION: 0 - 3/4" NPT

There are several Model of pressure transmitters, for more details read the PDF below

Basic Ordering Information Transmitter

Probe Feature

Manufacturer : Magnetrol
Product No. : 7ES-K438-036
Model : 7E - Eclipse GWR probe, English unit of measure
CONFIGURATION/STYLE: S - Coaxial Hot Water/Steam - 3⁄4" process connection T Coaxial Interface or larger- Dielectric range ≥10
MATERIAL OF CONSTRUCTION: K - 316/316L stainless steel probe and process connection, ASME B31.1 specifications (model 7xS only)
PROCESS CONNECTION – SIZE/TYPE: 43 - 2" 150# ANSI Raised Face Flange ①
O-RINGS: 8 - Aegis PF128
PROBE LENGTH: 036 - inch (914mm)