DeguDent SOLARIS, Руководство по обслуживанию

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DeguDent SOLARIS
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Service Manual
1.8
21 Jan 2005
37 of 43
DeguDent SOLARIS Service Manual
13.4 Calibration procedure for current correction values
13.4.1 Determining the current offsets for channels 0...7
Command Explanation
xt Turn off display backlight.
sio, 0 Turn on automatic offset calculation.
rc
Display channel number
↔
slot number assignment.
siX, Y X = 0…7 for channel 0…7
Incrementally increase the Y value starting from 0 until a current of
[ ]
A X I
µ
20 0
± =
is measured at the corresponding slot S(X).
Each increment will cause a chance in current of approximately 20 µA.
The Y bit value thus determined must be in the range 0…196. *
ewoX, <Y+54> Write bit value found to EEPROM:
X = 0…7
Y = bit value
determined
eroa Verify by reading factor.
… Turn off the unit. Turn back on after approximately 2 seconds.
sio, 1 Turn on automatic offset calculation.
xt Turn off display backlight.
sia, 0 Output 0 bits to all channels.
Check the current at all slots.
The current must be in the range
[ ]
A X I A
µ µ
150 20
≤ ≤ −
.
* Procedure on error:
If the adjustment condition is not met for a value of 0, but a current within the range of
[ ]
A X I A
µ µ
150 20
≤ ≤ −
is measured, the value of 0 can be accepted. If the value is outside the
error band, the device is defective. In this case please contact the manufacturer.
13.4.2 Determining the current offsets for the reference
Command Explanation
xt Turn off display backlight.
sio, 0 Turn off automatic offset calculation.
sir, Y Incrementally increase the Y value starting from 0 until a current of
A I
ref
µ
10 0
± =
is measured at the reference cathode. Each increment will
cause a chance in current of approximately 10 µA.
The Y value thus determined must be in the range 0…242. *
ewf, <Y+108> Write bit value found to EEPROM:
Y = bit value determined
erf Verify by reading bit values.
… Turn off the unit. Turn back on after approximately 2 seconds.
sio, 1 Turn on automatic offset calculation.
xt Turn off display backlight.
sir, 0 Output 0 bits to all channels.
Check the current at the reference cathode.
The current must be in the range
A I A
ref
µ µ
150 10
≤ ≤ −
.
* Procedure on error:
If the adjustment condition is not met for a value of 0, but a current within the range of
A I A
ref
µ µ
150 10
≤ ≤ −
is measured, the value of 0 can be accepted. If the value is outside the error
band, the device is defective. In this case please contact the manufacturer.