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ES51928 Datasheet(PDF) 3 Page - Cyrustek corporation

No. de pieza ES51928
Descripción Electrónicos  6000 Counts Smart DMM
Download  22 Pages
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Fabricante Electrónico  CYRUSTEK [Cyrustek corporation]
Página de inicio  http://www.cyrustek.com.tw
Logo CYRUSTEK - Cyrustek corporation

ES51928 Datasheet(HTML) 3 Page - Cyrustek corporation

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Ver 2.9
3
10/06/25
ES51928
6000 Counts Smart DMM
11
OVX
I
Input high voltage for resistance/capacitor measurement
12
OVH
I
Output connection for resistance/capacitor measurement
13
OVSG
I
Sense low voltage for resistance measurement
14
OR1
O
Reference resistor connection for 600.0Ω range
15
VR5
O
Voltage measurement ÷10000 attenuated (1000V)
16
VR4
O
Voltage measurement ÷1000 attenuated (600.0V)
17
VR3
O
Voltage measurement ÷100 attenuated (60.00V)
18
VR2
O
Voltage measurement ÷10 attenuated (6.000V)
19
TEST5
I/O Test pin
20
ACVL
I
DC signal low input in ACV/ACA mode. Connect to negative output of
external AC to DC converter.
21
ACVH
I
DC signal high input in ACV/ACA mode. Connect to positive output of
external AC to DC converter.
22
ADI
I
Negative input of internal AC to DC OP Amp.
23
ADO
O
Output of internal AC to DC OP Amp.
24
OHMC4
O
Filter capacitor connection for resistance mode
25
OHMC3
O
Filter capacitor connection for resistance mode
26
OHMC2
O
Filter capacitor connection for resistance mode
27
OHMC1
O
Filter capacitor connection for resistance mode
28
NC
-
29
VRH
O
Output of band-gap voltage reference. Typically –1.2V
30
VR
I
Reference input voltage connection. Typically –400mV
31
SGND
I
Signal Ground.
32
ADP
I
Measurement input in ADP mode
33
VA+
I
For ADP mode. De-integrating voltage positive input. The input should
be higher than VA-.
34
VA-
I
For ADP mode. De-integrating voltage negative input. The input should be
lower than VA+.
35
VR1
I
Measurement input.
36
NC
-
37
CA-
I/O Negative auto-zero capacitor connection for capacitor measurement
38
CA+
I/O Positive auto-zero capacitor connection for capacitor measurement
39
R9K
O
Connect to a precise 9KΩ resister for capacitor measurement.
40
R1K
O
Connect to a precise 1KΩ resister for capacitor measurement.
41
SLEEP
O
Sleep mode indicator, asserts low in SLEEP mode. Normal V+ output.
42
BUZIN
I
Pull to V- to enable the BUZOUT.
43
APOSEL
I
Auto power off idle time selection.
44
BUZOUT
O
Outputs a 2KHz audio frequency signal for driving piezoelectric buzzer
45
ACEN
O
Output to V- when AC mode inactive and output to V+ in AC mode.
46 – 50
NC
-
51
BKOUT
O
If BKLIT function is enabled, this pin will change from –3V to +3V
for 60 sec, once press BKLIT pin again within 60 sec, this pin will change
back to –3V.
52
ANNUNC
O
Square wave output at the backplane frequency, synchronized to BP1.
ANNUNC can be used to control display annunciator. Connect a LCD
segment to ANNUNC to turn it on; connect an LCD segment to its back
plane to turn it off.
53
BP4
O
LCD backplane 4
54
BP3
O
LCD backplane 3
55
BP2
O
LCD backplane 2
56
BP1
O
LCD backplane 1
57
EFEN
I
Pull-low to enable non-contact AC voltage detection
58
BKLIT
I
Back light function. Pulse low to set BKOUT pin output.
59
MAX/MIN
I
Pulse to V- to enable MAX/MIN function.
60
RANGE
I
Pulse to V- to enable manual mode and manual range selection.
61
VAHz
I
Pulse to V- to enable VAHz mode.


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