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.
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.
HR Thermoplastic front with steel back shields this meter from magnetic fields. Available size 3. 5″.
.5E Thermoplastic front and steel back. Horizontal mounting. Available size less than .5″.
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.
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″.
The Jewell surface mounted MS Series analog panel meter is designed with a contemporary concave cover to reduce glare and improve readability. Rugged and durable, this aesthetically pleasing rectangular shape interfaces with today’s high technology applications.
Available in sizes 1.5″ up to 3.5″.
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.
The highly versatile Jewell surface and bezel-mounted 70 series analog panel meter provide maximum flexibility for selecting the size, type of mechanism, and method of mounting. The crystal clear cover is distortion-free and unaffected by aging. The clean, clear appearance of these meters blends with any color scheme.
The Modutec 1000 takes the guesswork out of reading a small, low-cost, digital panel meter. These meters have an over-range indication of the rated value and auto-zero when there is no input signal. They also feature auto polarity which visually clues the user to a negative reading.
The Modutec 1000 features a 0.3-inch digit display in red or green for hard-to-read applications. Choose from bezel or window mount snap-on bezel – neither of which need extra hardware or panel holes. At 1.34″ x 0.75″ and panel depth less than 0.8″ these meters are easy to read, small units that fit into almost any application.
The moving coil panel meters, DSL 48/72/96/144 are housed in molded polycarbonate cases are suitable for the measurement of DC currents and voltages. 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). The front glass, bezel, and dial can be easily replaced.
The Jewell surface mounted MM series analog panel meter has the popular medallion shape that revolutionized the meter industry. This space-saving design offers high visibility and rugged durability while blending with today’s high technology applications.
Edgewise meters mount vertically or horizontally with a curved (13) or flat (13F) front. 5% Accuracy meters incorporate a moving magnet mechanism. Available size 2″.
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