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GENERAL  INSTRUCTIONS

 

 

SWITCH SETTINGS

 

In order to keep operation easy and straightforward there are only two switches 
on the front panel. 

 

ON/OFF SWITCH

 

The ON/OFF Switch is used to turn on the instrument.  The switch is illuminated, 
and the green light will be 

on 

when the power is turned 

on

.  Remember to turn 

the instrument off when not in use to conserve the batteries. 

 

MODE SWITCH

 

The MODE SWITCH has two functions. 
1. When initially turned on, the instrument can be switched to the 

“High 

Resolution” mode. 
2. After a kVp reading is obtained, pushing the Mode Switch will provide 
additional information. 

 

1. High Resolution / High Speed Modes

 

When the instrument is first powered on, it 

is in “Normal” or “High Speed Mode” 

which is used for most measurements.  When used in Normal Mode the Model 
815 inserts a delay of about 22 milliseconds before measuring the kVp.  Pushing 
the button once will put the instrument into 

“High Resolution Mode”.  In High 

Resolution Mode, the delay is approximately doubled. 

When using the

 

instrument in High Speed Mode, the x-ray exposure time must set to at 
least 40 ms (0.04 sec).  When using the instrument in High Resolution 
Mode, the exposure must be at least 80 ms (0.08 sec).

 

 

When the instrument is put into High Resolution Mode, it will stay in High 
Resolution Mode until it is turned off.  To get the instrument into High Speed or 
Normal mode, turn the power off and then on.  There is additional information 
about using High Resolution Mode in the Operation section. 

 

2. Additional Information Display

 

After a measurement, the kVp value will be displayed.  Additional information can 
be displayed by pushing the mode button momentarily.  The instrument will then 
sequence through the following information: 

•  Waveform Type 

•  Exposure Time in milliseconds 

And back to kVp. 
Waveform type and exposure time will each be displayed for about 1.2 seconds, 
and then the display will revert back to kVp.  After the Additional Information is 
displayed and display returns to kVp, the meter is ready for another reading.  If 
the battery is low, 

a „Batt Low‟ message will also appear for 1.2 seconds. 

Содержание 815

Страница 1: ...r Exposure Time Meter Rev November 21 2013 Electronic Control Concepts PO Box 182 1160 US Route 50 Milford Ohio 45150 9705 USA Phone 800 VIP XRAY Fax 845 247 9028 sales eccxray com www eccxray com A D...

Страница 2: ...AL TABLE OF CONTENTS Page DESCRIPTION 3 GENERAL INSTRUCTIONS SWITCH SETTINGS 4 OPERATION 5 FILTRATION CORRECTION 7 CONNECTIONS 7 BLUETOOTH REMOTE MONITOR 8 STATUS MESSAGES 10 BATTERY REPLACEMENT 10 WA...

Страница 3: ...e operator can also determine the characteristics of an x ray After a reading is obtained pushing the Mode button will give the operator a message indicating if the x ray is 1 half wave or 2 full wave...

Страница 4: ...tion Mode the delay is approximately doubled When using the instrument in High Speed Mode the x ray exposure time must set to at least 40 ms 0 04 sec When using the instrument in High Resolution Mode...

Страница 5: ...sure Time There are two modes requiring different exposure times In the Normal or High Speed Mode the exposure time must be at least 0 04 sec 40 ms Longer exposure times than 50 or 100 ms are not nece...

Страница 6: ...that will be added to the exposure time We recommend making exposure time readings at 50 to 80 kV and 25 to 50 mA Also the accuracy specifications apply for measurements greater than 150 milliseconds...

Страница 7: ...7 1 7 3 4 For example if your x ray has 2 5 mm Al that is equivalent to 1 0 mm of added filtration A reading at approximately 60 kVp 50 mA will be 1 1 kV high Subtract 1 1 kVp to get the correct read...

Страница 8: ...automatically Running the App When the ECC Remote Monitor app is started it asks for your permission to use the Bluetooth capabilities of your Android device if you deny this request the application w...

Страница 9: ...count selection menu appears If you choose to upload the data a text file with all the information collected will be stored in your Google Drive cloud storage If you saved your file to the SD card use...

Страница 10: ...ease the distance from the x ray head to the Model 815 OvrScale Over Scale The output of the x ray exceeds the measurable range of the Model 815 Low Batt Battery is low The unit may still be operated...

Страница 11: ...and workmanship for a period of 2 years There is no warranty on the battery ECC will replace or repair any Model 815 during the first year after shipment that does not show obvious signs of abuse Cont...

Страница 12: ...at 50 kV 10 cm from x ray 815L Also depends on focus DISPLAY 0 4 10 2mm Liquid Crystal 8 Character Alphanumeric CONTROLS INDICATORS ON OFF Switch Illuminated MODE Switch momentary push button OUTPUTS...

Страница 13: ...To simplify this discussion please refer to the chart below The chart below shows the maximum kV and mA This instrument can accurately measure at kV mA combinations below the three curves at the part...

Страница 14: ...units with a single winding head excite the x ray at a lower voltage before the actual exposure in order to allow the filament to warm up Some of these x rays emit radiation during this pre heat time...

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