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Miniature AC & DC Voltmeters

digital.jpg (6144 bytes)
Models PM-349 and PM-350
The PM Series Full-functioned miniature digital voltmeters are AC or DC reading, and feature AC or DC power options, and LED or LCD displays. These versatile meters are available in 100mV, 200mV, 1V, 2V, 10V, 20V, 100V, 200V, or 1000V ranges. Highly accurate (up to 0.02% of full scale), with rapid update rates (up to three reading per second), these meters feature bipolarity (PM-3 is unipolar), a presettable decimal point, overload indication, an extensive list of application-specific options, and easy installation.

Applications
  • Voltage (DC or AC)
  • Current (DC or AC)
  • Ratio

    Options
  • Current measurement
  • Ratio measurement
  • 0.4-inch LEDs
  • Green, orange, or yellow LEDs
  • 120 or 240Vac power
  • Operation from other than 5Vdc
  • Special scaling
  • Zero offset

    Features
  • Small size- stackable
  • Multiple options
  • 3, 3 , 4 and   4 digit models
  • 0.3-inch red LED or LCD display
  • 1000, 2000, 12000 and 20000 counts full scale
  • Accuracy's from 0.1% to 0.2% full scale
  • Auto-zeroing
  • Overload indication
  • Bipolar / Unipolar operation
  • Automatic polarity indication
  • Polarity inhibit
  • Low power consumption
  • Display inhibit / dimming
  • Display hold
  • Busy / done output
  • MUX BCD outputs
  • High input impedance - up to 1000 MW
  • 3/64 DIN type
  • Presettable decimal point
  • Easily changeable ranges

    Standard Specifications
  • Operating Temperature:
    0C to 50C ambient
  • Weight:
    Four ounces (113 grams)
  • Decimal Location:
    May be positioned by jumper on connector to any of three or four locations x.x.x.x.x.
  • Control Signals:
    Display hold, display inhibit, and polarity inhibit
  • Measurement Method:
    Integration, Input Integration time = 50 mSec for PM-3, 100 mSec for PM-4
  • Zero Stability:
    Auto-zeroing eliminates zero drift
  • Settling Time:
    Two seconds maximum
  • Common Mode Rejection Ratio:
    80 dB minimum
  • Normal Mode Rejection Ratio:
    40 dB minimum
  • Warm-up Time:
    10 Seconds to rated accuracy
  • Connector Type:
    Edge card

    diagramPM.jpg (10887 bytes)

     

     

     


    Specifications: (Click the Model ID for product details)
    Model
    Range-VDC
    Digits
    Display
    Decimal Locations
    Overload Indication
    Unipolar / Bipolar
    Accuracy
    Input impedance
    Temperature Coefficient (as %rdg/C)
    Common-Mode Voltage Range
    Power
    AC/DC Reading
    Output Signal
    Update Rate
    Weight (Metric)
    Large LED Display
    Green, Orange or Yellow LEDs
    Current Measurement
    Ratio Measurement
    100mV FS: 01mV Resolution
    MUX BCD Output
    Leading Zero Suppression
    Display Hold
    Zero Offset
    Special Scaling
    Mating Connector
    120 VAC Power
    240 VAC Power
    PM-349
    2V, 20V, 200V, 1000V
    3
    0.3" LED
    3
    Pos= +1; Neg= -1
    Bipolar
    (.05%rdg+ .05%F.S.)
    100MW, 1MW, 10v, 1000MW, 2v; 1MW, 20v; 1MW, 20v
    .025
    -1.5V to+4V
    +5Vdc 5% @200mA
    DC
    -
    3/sec
    4 oz. (113g)
    0.4-inch
    Option
    Option
    Option
    -
    -
    -
    Option
    Option
    Option
    39-195
    39-193-1
    39-193-2
    PM-350
    200mV, 2V, 20V, 200V, 1000V
    3
    0.3" LED
    3
    Pos= +1; Neg= -1
    Bipolar
    (.05%rdg+ .05%F.S.)
    100MW 200mV; 1000MW, 2v; 1MW, 20v; 1000v
    .025
    -1.5V to+4V
    +5Vdc 5% @200mA
    DC
    -
    3/sec
    4 oz. (113g)
    0.4-inch
    Option
    Option
    Option
    -
    -
    -
    Option
    Option
    Option
    39-195
    39-193-1
    39-193-2
    PM-351
    200mV, 2V, 20V, 200V, 1000V
    3
    0.3" LED
    3
    Pos= +1; Neg= -1
    Bipolar
    (.05%rdg+ .05%F.S.)
    100MW 200mV; 1000MW, 2v; 1MW, 20v; 1000v
    .025
    -1.5V to+4V
    +5Vdc 5% @6mA
    DC
    -
    3/sec
    4 oz. (113g)
    -
    -
    Option
    Option
    -
    -
    -
    Option
    Option
    Option
    39-195
    39-193-1
    39-193-2
    PM-352
    200mV, 2V, 20V, 200V, 1000V
    3
    0.3" LED
    3
    Flashing zeros
    Bipolar
    (.05%rdg+ .05%F.S.)
    100MW 200mV; 1000MW, 2v; 1MW, 20v; 1000v
    .025
    2V
    +5Vdc 5% @150mA
    Both avail.
    Busy/done multiplex BCD
    3/sec
    4 oz. (113g)
    0.4-inch
    Option
    Option
    Option
    -
    Standard
    -
    Standard
    Option
    Option
    39-282
    39-284-1
    39-284-2
    PM-452
    2V, 20V, 200V, 1000V
    4
    0.3" LED
    4
    Flashing zeros
    Bipolar
    0.2%F.S.
    100MW 200mV; 1000MW, 2v; 1MW, 20v; 1000v
    (.01+.001%FS)
    2V
    +5Vdc 5%
    DC
    Busy/done multiplex BCD
    3/sec
    4 oz. (113g)
    0.4-inch
    Option
    Option
    Option
    -
    Standard
    -
    Standard
    Option
    Option
    39-195
    39-193-1
    39-193-2

    *Applies when instrument is used with NLS 46-279-1 power supply. When not used, common-mode voltage and rejection will depend upon the characteristics of the power supply used. The use of a floating supply is recommended.



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