Jewell Instruments/Modutec W Series

Window Mount Analog Panel Meters

Jewell W Series, Analog Panel Meters
Characteristics :
  • Available in: 1 1/2″, 2 1/2″, 3 1/2, and 4 1/2″ sizes
  • AC rectified 3% accuracy
  • AC iron vane 2% accuracy
  • DC moving coil 2% accuracy
  • Available with rugged, high-torque movements for applications with high vibration
  • Self-shielding
  • Window mount
Product Description:

The MODUTEC W Series Meters—designed for easy installation with meter covers that are flush with the front panel surface. The dial is easy to read with excellent functional appearance.

Specifications :
Scaling: Flat Arc – Customized to any scaling desired, from linear to specialized Cos Ø, square root distributions, with color applications for visual emphasis and to any desired engineering units.
Specific accuracies
Basic Accuracy: ±2.0% of full scale basic accuracy class.
Rectifier Type Meters: ±3% of full scale basic accuracy class.
Expanded Scale Voltmeters: 0.5% of full scale
Frequency Meters: ± .15Hz @45-55Hz and 55-65Hz, ±0.093Hz @ 58-62Hz, ±1.5Hz @350-450Hz
Zero Suppressed Meters: Errors at 20% suppression = ±3% of end-scale
Higher Accuracy: 1% of Full scale or better
Position of use: Vertical (scale) standard or to specified angle or position
Full scale deflection angle: 100 °
Movement: Taut Band
The absence of friction resulting from this permits greater sensitivities and provides more rugged meters.Common failures of conventional meters subjected to shock testing are cracked jewels and/or blunted pivots.
Pivot and Jewel
In this design the coil and pointer are supported by polished steel pivots at each end which fit into jewel bearings. Pivot and jewel meters are recommended for high vibration environments because of the mechanism’s inherent stability and strength. Accuracy and repeatability are almost equal to the taut-band’s, and good performance from the pivot and jewel construction is the reason for its long popularity.
Case: ABS plastic, Black
Cover: Polycarbonate cover and window.
Overload rating: Voltmeters (AC and DC) – 50% momentary, 20% sustained. Ammeters (AC and DC) momentary; 10 times the rated current for 10 consecutive intervals of .5 second with a 1 minute interval between successive applications; sustained: 20% for six hours.
Burden Data: AC Ammeter 5 amps @ 60 Hz, 0.5VA, Max. .5 Power factor lagging, AC voltmeter – unity power factor.
Response time: 3 seconds (Max.) – Microammeters 2 seconds (Max.) – All other DC ratings 2.5 seconds (Max.) – All AC ratings Maximum 40% overshoot
Operating Temp.: 0 to 40°C (32 to 104°F)
Storage Temp: -10 to 50°C (14 to 50°F)
Extreme temperature range: -20°C to 65°C (-4 to 149°F) Tropicalized or IP54 sealed units available
Relative Humidity: 95% (non condensing)
pdf_pic Downloads: General Specifcations