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Guided Microwave Spectrometer (GMS)
The Guided Microwave Spectrometer (GMS) is a fast, non-contact method for monitoring multiple components in liquid, solids or multiple components in liquid, solid or mutliphase materials that pass through a pipe. By providing you with crucial product content and consistency information, the GMS will improve your process' efficiency and your product's quality, resulting in significant cost savings.
The GMS is used to analyze products such as dough and ground meat where other technologies such as NIR may not provide a suitable solution. The GMS chamber and control module are easily integrated into your process. Unlike other analyzers, its simple design contains no moving parts or optical components that require routine maintenance, resulting in extremely low long-term cost of ownership.

Advantages:

  • Analyzes multiphase products such as slurries, dough, liquids and larger particle size products
  • Analyzes multiple components
  • Measurement is truly representative of the bulk product even for heterogeneous materials. GMS is not a surface treatment.
  • Integrates seamlessly into your process with no flow obstruction
  • Results are not affected by the sample color
  • Excellent repeatability, accuracy, precision and stability

GMS Applications

The GMS is used to analyze samples flowing through a pipe. Typical materials include liquids, pastes, granular solids, dough, ground meat and highly viscous materials.

The GMS can be used to measure:

Moisture in:

  • Raw ingredients such as corn, rice, soybeans
  • Processed materials such as tomato paste, corn masa, ground meats
  • Chemicals and plastics

Brix, pH, viscosity and acid in:

  • Orange juice
  • Soft drinks
  • Mayonnaise
  • Tomato products

Fat in:

  • Ground meats
  • Peanut butter
  • Milk and other dairy products

Salt in:

  • Mashed potaotes
  • Most vegetable products

- Solvents in a mixture or chemical - Alcohol in beverages- Reaction progress

Sample Types :Liquids; Granular solids: Pastes; Multiphase (solids, liquids, and slurries)
Microwave Power :1 mW standard
Temperature Compensation :High band configuration: 200 to 3,200 MHz; Low band configuration: 200 to 1,600 MHz
Temperature Compensation :Resistor Temperature Device (RTD); Signal output for temperature via 4-20 mA output
Calibration :Software for calibration development, diagnostics and uploading variables
Alarm Indicators :Red/Green diagnostic light
Process Connections :ANSI Flange 150#; ANSI Flange 300#; Tri-Clamp™: Threaded Sanitary; I-link (Interlock)
Communications :Up to (4), 4-20 mA analog outputs; RS232
Modem Support :On-board, 2400 baud
Chamber Dimensions :5.08 cm (2 in); 7.62 cm (3 in); 10.16 cm (4 in); Special sizes, determined by application, available by special order
Chamber Material :316 SST
Process Temperature Limits :0°C to +150° C (+32°F to 302°F); up to 2000 kpa pressure
Control Module Dimension :39.4 cm (15.51 in) x 33 cm (12.99 in) x 17 cm (6.69 in)
Control Module Enclosure :NEMA4X (separate from chamber); Optional junction box for one 4-20 mA output, modem phone jack and RS232 port
Electronics Module Connection :3.66 m (12 ft) flex conduit interconnect: Longer lengths available by special order
Operating Temperature Range :Control Module: +10°C to +40°C (+50°F to +104°F)
Operating Relative Humidity :Control module: 0-95% non-condensing
Vibration Limits :Control module: Up to 1 m/s² from 5-200 Hz; Stable, non-vibrating stand or surface
Weight :39 kg (85.8 lb) average
Power Requirements :90-260 VAC (47-63 Hz)
Computer Requirements :386 MHz (minimum), Windows® 98, 2000, ME or XP operating system, 3 MB hard drive space available, RS232 serial port, DB9 (male) communication port