Jewell DE Series – Moving Iron
Highlights:
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.
Jewell DG Series – Moving Coil & Rectifier 90° Scale
Highlights:
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
Jewell DGL Series – AC Ammeters/Voltmeters
Highlights:
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 DS Series – Moving Coil
Highlights:
The moving coil panel meters DS 48/72/96/144 are housed in cases made of molded polycarbonate and are suitable for the measurement of DC current 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 all easily be replaced.
Jewell DSL Series – DC Ammeters/Voltmeters
Highlights:
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.
Jewell FM Series – Frequency Meter
Highlights:
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 FML Series – Frequency Meters
Highlights:
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.