kVp Meters
Models 820, 820L

Own a New Multi-Function X-ray Meter

New Instrument Measures
kVp, mA, mAs and Exposure Time

The new 820 kVp / mAs Meter combines all the features of our Model 815 kVp Meter, and adds the mA and mAs measurement function in one compact unit. The 820 is capable of measuring kVp, mA, mAs, and exposure time. The unit is self resetting, and automatically detects AC or DC x-ray currents, minimizing the possibility of inaccurate readings. With each mA reading, the unit stores and displays mA, mAs and exposure time. mA is sampled for a representative length of time and saved. This allows shorter exposure times minimizing xray exposure and wear and tear on the x-ray head. The Model 820 contains exactly the same kVp measurement circuit and capability as our Model 815. The mA / mAs function has been squeezed into the unit. The Model 820 is battery operated, user-friendly, and has a two year warranty. Applications include verification of peak x-ray voltage, constancy checks, calibration of x-rays, and quality assurance measurement of exposure time. The unit is also used for half value layer determination, troubleshooting and repair of x-rays, and quality control.

The cable supplied with the unit serves as a switch. When the cable is plugged into the unit, it is automatically configured for mA readings. When the cable is unplugged the Model 820 functions as a kVp meter.

The kVp Meter has CE Compliance. All units come with a Certificate of Compliance.

Yearly calibration is suggested.

The introduction of the Model 820 allows service personnel to carry one instrument rather than an mAs Meter and a kVp Meter.

Features

Typical Applications

kVp/mAs Meter photo

Carrying Case

A new accessory is now avalable for models 815 and 820 - Custom Hard Carrying Case, that keeps your instrument safe and has room for cables and batteries inside.

820

Low Range Model 815L, 820L

The low range version of the kVp meter boasts the flexibility to provide precision at low kVp and low mA operation. The low range option is perfect for digital x-rays as well as dental and fluoroscopy machines, which typically operate at lower kV and mA settings. The low range 815L or 820L can measure kVp as low as 40 kV and has increased current sensitivity to operate dependably down to 5mA at 50 kV. The low range models are optimized at lower currents and operates up to 115 kV at 100 mA. Contact ECC for more information and pricing.

There is no difference in current (mA) measuring capability of 820 or 820L.

Additional Information

To learn more, please review:


kVp Specifications (applies to 815 and 820)

kVp Meter photo
RANGE
  • 815/820: 45 to 125 kV
  • 815L/820L: 40 to 115 kV
KVP ACCURACY
  • 2% 1 kV, at 25 to 100 mA for 815, at 10 to 50 mA for 815L
  • 18 to 42 cm from head, for Tungsten target x-ray tube with 1.5 mm Al equivalent filtration
EXPOSURE TIME ACCURACY
  • 1% 2 millisecond (1/5 to 2 sec)
  • Minimum exposure time is 100 milliseconds
MINIMUM EXPOSURE TIME (kVp Measurement)
  • 100 millisec - High Speed Mode (normal)
  • 200 millisec - High Resolution Mode
MINIMUM CURRENT (mA)
  • 7 mA at 50 kV, 10 cm from x-ray source
  • Also depends on focus / collimating

    mA / mAs Specifications for 820

    RANGE
    • 200 mA Full Scale
      • 0.1 mA Resolution (mA or mAs)
      • 10 Ohms Input Impedance
    • 2A Full Scale
      • 1 mA Resolution (mA or mAs)
      • 1 Ohm Input Impedance
    • Range selection via pushbutton at power on
    ACCURACY
    • 2% 1 mA on both ranges
    CONNECTION
    • Via 5 meter cable with two alligator clips
    • Connecting cable switches meter to mA /mAs

    General Specifications for 815 and 820

    DISPLAY
    • 0.4"(10.2mm) Liquid Crystal
    • 8 Character Alphanumeric
    POWER
    • 4 AA Batteries accessible from bottom of case
    • Low Battery Indicator
    BATTERY LIFE
    • 48 hours continuous
    • Typically 9 months of normal use
    CONTROLS/ INDICATORS
    • ON/OFF Switch - Illuminated push-button with green power-on indication
    • MODE Switch - Momentary push-button
    • 8 Character Liquid Crystal Display
    PHYSICAL SIZE
    • 150 x 120 x 58.5 mm
    • 5.9 x 4.7 x 2.3 inches
    WEIGHT
    • 0.7 kG (1.5 lb)
    OPTIONAL ACCESSORIES
    • Padded Cordura Carrying Case

      Please contact ECC for pricing and ordering information.