Pointer Mechanisms
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Jewell Instruments manufactures and markets a broad range of JEWELL brand pointer mechanisms ensuring that we will meet your specifications. We have a variety of designs available. Below is a selection of our most popular pointer mechanisms. We have engineered these models to meet or exceed a variety of application-specific needs.
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Jewell 80 Series
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The Jewell window mount 80 series analog panel meter is designed with a crisp appearance and high visibility. Only the clean lines of the dial face appear on your panel front, providing maximum layout flexibility. This unique space-saving meter saves up to 3 cubic inches behind the panel when compared to “barrel type” meters.
Jewell DG Series – Moving Coil & Rectifier 90° Scale
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The moving coil, rectifier meters, DG 48/72/96/144 are housed in molded polycarbonate cases and are suitable for the measurement of AC currents and voltages. Moving coil rectifier instruments measure average values and are calibrated to indicate RMS values, assuming a sinusoidal waveform for frequencies from 40 to 10000 Hz (AC current for frequency range of 40 to 1000 Hz and AC voltage for frequency range of 40 to 1000 Hz. These instruments offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cut-out (mosaic mounting). Front glass, bezel & dial can easily be replaced
A&M 4951 Switchboard Ruggedized Series
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The A&M Model 4951 power factor meters are designed to meet the requirements of MIL-M-19261 and MIL-M-16034. They are supplied as either self-contained or as a “matched-set” with the external transducer. In the external transducer configuration, the transducer is matched to the meter. Both configurations are sealed watertight.
Jewell DGL Series – AC Ammeters/Voltmeters
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The moving coil, rectifier panel meters DGL 48/72/96/144 are housed in polycarbonate cases and are suitable for the measurement of AC currents and voltages. Moving coil rectifier instruments measure average values and are calibrated to indicate RMS values, assuming a sinusoidal waveform for frequencies from 40 to 10000 Hz (AC current – 40 to 1000 Hz and AC Voltage – 40 to 10000 Hz). These instruments offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cutout (mosaic mounting). The front glass, bezel, and dial can be easily replaced.
Jewell FML Series – Frequency Meters
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The pointer type frequency meters, FML 96 and FML 144 housed in molded polycarbonate cases are used for the measurement of frequencies in the range of 45 to 450 Hz. For maximum accuracy, the essential measuring range is obtained by suppressing the unwanted frequency span. These instruments offer several advantages in switchboards and panel cut out. A number of meters can be mounted in a panel cut-out (mosaic mounting). The front glass, bezel, and dial can be easily replaced.
Modutec BL Series
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The MODUTEC BL Digital panel meter gives you all the functionality you need with none of the extras you don’t need. That means simplicity, easy readability, a small footprint, and a low cost.
Triplett Ruggedized Series
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HR Thermoplastic front with steel back shields this meter from magnetic fields. Available size 3. 5″.
Modutec S-Series Surface Mount Panel Meters
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The S Series Surface Mount Panel Meters are clean-cut meters with straightforward design and pleasing aspect ratio are leaders of the Modutec line and add distinction to any instrument or control panel. Available in five sizes and a wide variety of types and ranges, they resolve many problems for the equipment designer and are always a solid choice for function and appearance.
AC Meters in this series are available in both moving coil (rectifier type) and iron vane versions. The latter has the virtue of being relatively insensitive to input distortion, while the rectifier type is less affected by frequency variations.
Jewell FM Series – Frequency Meter
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The pointer type frequency meters, FM 48/72/96/144 are housed in molded polycarbonate cases are suitable for the measurement of frequencies in the range of 45 to 450 Hz. For maximum accuracy, the essential measuring range is obtained by suppressing the unwanted frequency span. These instruments offer several advantages in switchboard and generating set panels. A number of meters can be mounted in a panel cut out (mosaic mounting). The front glass, bezel, and dial can be easily replaced.
Jewell DE Series – Moving Iron
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The moving iron panel meters, DE 48/72/96/144 housed in cases made of molded polycarbonate are suitable for the measurement of AC currents for the frequency range of 15 to 400 Hz and voltages in the frequency range of 15 to 100Hz. Moving iron meters indicate RMS values practically independent of waveform even of high harmonics. An error of indication may occur for extreme waveforms (e.g. phase gating controls) & for frequencies above 100KHz.
These meters offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cutout mosaic mounting. For CT-operated ammeters, dials can be fitted based on CT ratio. Glass and bezel can easily be replaced.
Flag Mechanisms
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Jewell Instruments manufactures and markets a wide range of Jewell brand flag mechanisms. We engineer them to meet your specifications. We have a variety of designs available — below is a selection of our most popular flag mechanisms. Each model is uniquely designed to meet some of our customers’ most frequent requirements.
A&M 2.5 Square Ruggedized Series
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Designed and manufactured in conformance with MIL-PRF-10304 (not QPL listed). Ideal for communication or test equipment where severe environmental conditions are encountered. Available size 2.5″.