Product Description

WARRANTY: One Year
ACCESSORIES: Test Leads, Operator Manual, Calibration Certificate, hard carrying case 800HC
GENERAL INFORMATION:

ECC recently announced the availability of a new multifunction meter, the model 820.

The new 820 kVp / mAs Meter combines all the features of our kVp, along with an mA / mAs meter 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 introduction of the Model 820 allows service personnel to carry one instrument rather than an mAs Meter and a kVp Meter.

kVp SPECIFICATIONS FOR THE 815/820

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 THE 820

RANGE

• 200 mA Full Scale

mA Resolution (mA or mAs)

10 Ohms Input Impedance

• 2A Full Scale Range selection via pushbutton at power on
  • 1 mA Resolution (mA or mAs)
  • 1 Ohm Input Impedance

ACCURACY

• 2% 1 mA on both ranges

CONNECTION

• Via 1 meter cable with two alligator clips
• Connecting cable switches meter to mA /mAs

GENERAL SPECIFICATIONS FOR THE 815/820

DISPLAY

• 0.4″(10.2mm) Liquid Crystal
• 8 Character Alphanumeric

POWER

• 4 AA Batteries accessible from bottom of case
• Low BatteryIndicator

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)