Model 8700
The Model 8700 X-Ray Pulse Counter/ Exposure Time Meter is used to measure the time or duration of radiation output produced by a wide variety of x-ray generators. The x-ray sensor in the 8700 allows direct measurement of exposure from the x-ray head. Pulses produced by half-wave and full-wave x-ray are measured as 60 or 120 pulses per second. For DC, capacitor discharge and 3-phase x-ray, the 8700 measures the exposure time in milliseconds.
When testing x-ray timers and controls, the time of relay contact can be measured using the AC input feature.
The Model 8700 is "self-resetting". There is no need to reset the instrument after each reading. The reading is stored after each exposure, holding until the next exposure.
New and Improved!
We have recently made significant changes to the design of our Model 8700 to improve the function and accuracy. No changes were made regarding the actual operation, so the units work the same as existing models.
However, the following performance improvements were made:
- Wider Range
- Increased sensitivity allows use with lower power x-rays
- Wider dynamic range allows use with higher power x-rays
- More accuracy on DC/Multiphase high power x-rays
- Measurement ends at 70% of peak value eliminating inaccuracy due to slow tail.
- Periodic calibration is not needed
- Digital / microprocessor circuitry does not drift or lose accuracy over time.
- New circuitry saves production time and parts cost, allowing us to keep our competitive prices.
- Low power circuitry improves battery life.
Features
- Small hand-held size
- AC or DC X-Rays
- New high accuracy circuit
- Self-resetting
- Battery operated
- Two year warranty
- Direct exposure reading or AC input
- Use for Medical or Dental X-Rays
- Remote Sensor option
- No periodic calibration needed
- Custom carrying case option
- Durable ABS plastic case
Typical Applications
- Measurement of Exposure
- Quality Assurance
- Verification of X-ray Exposure Time
- Calibration of X-ray Timer
- Direct Measurement of Timer Accuracy
- Troubleshooting and Repair of x-ray
To learn more, please review our 8700 Instruction Manual (Adobe PDF) and printable 8700 Data Sheet (Adobe PDF).
Specifications
ACCURACY- AC - one count
- DC- 2% +/-1 millisecond
- X-ray input: 40kVp, 5mA at 5 cm from top surface of case, pointed to target
- AC Input: 90 VAC minimum
- 9999 Pulses
- 9999 Milliseconds
- 0.4" Liquid Crystal
- Internal 9 Volt Battery
- Low Battery Indicator
- 48 hours continuous
- Typically 9 months of normal use
- Three position switch
- Pulse
- Off
- Milliseconds
- 4 digit liquid crystal display
- 0.4" characters
- Low battery indicator
- Oscilloscope output
- Remote Sensor Input
- 80 x147x 40mm
- 3.15 x 5.8 x1.6 inches
- None required for direct exposure measurement
- 2 tip jacks for AC input
- Jack for Remote Sensor Option
- Jack for Oscilloscope Output
- Remote sensor with 3 meter cable
- Padded Cordura Carrying Case
- Oscilloscope Interface Cable
- Long Life Battery
Please contact ECC for pricing and ordering information.