TC818A 查看數據表（PDF） - Microchip Technology
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TC818A Datasheet PDF : 24 Pages
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TC818A
FIGURE 3-8:
AUTO-RANGE
OPERATION: VOLTAGE
MEASUREMENT
N = 0 If DC N = 0; 200mV Full Scale Range
N = 1 If AC N = 1; 2V Full Scale Range
Kth
Conversion
N = NK
(Remain in Range
Selected during the Kth
Conversion)
VX = (1/10N) VIN
N = N –1
Yes
VX < 180
?
No
N = 0 If DC
N = 1 If AC
?
Yes
N = N +1
No
VX > 2000
?
Yes
No
N=4
?
Display
Voltage (V)X
K = K +1
Yes
No
VX > 3000
?
Yes
Display
"1" 000
Flash MSD
Extended
Resolution
Display
"1" XXX
Flash MSD
Activate
Buzzer
Over Range
Start: Power-on, Function or Measurement Option Change
FIGURE 3-9:
AUTO-RANGE
OPERATION: RESISTANCE
MEASUREMENT
N = 0 If Ω N = 0; 200Ω Full Scale Range
N = 1 If LOΩ N = 1; 2kΩ Full Scale Range
Kth
Conversion
(Remain in Range
Selected during the
Kth Conversion)
RX
=
1
10N
RIN
Continuity
Indicator
Activate Yes
Buzzer
Continuous
4kHz Signal
RX < 19
?
No
N = N –1
No
Yes
RX < 180
?
No
N = 0 If Ω
N = 1 If LOΩ
?
Yes
RX > 2000
?
Yes
Display
Resistance
K = K +1
No
N = N +1
N=4
?
Yes
RX > 3000
?
Yes
No Display
"1" XXX
Flash MSD
Extended Resolution
Over
Range
Display
"1" 000
Flash MSD
Start: Power-on, Function or Measurement Option Change
DS21475B-page 14
© 2002 Microchip Technology Inc.
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