V 1 Lascar Electronics, V 1 Datasheet - Page 3

• Manufacturer Part Number: V 1
• Description: VOLTMETER, LCD, 3.5 DIGIT, DIL CONNECTION, 200mV READING
• Manufacturer: Lascar Electronics
• Type: Voltmeterr

Specifications of V 1

• Accuracy: 0.25 %
• Brand/series: V 1
• Display Digit Height: 0.25 Inch
• Display Type: LCD
• Mounting Type: Socket or Panel
• Number Of Digits: 3 1/2
• Primary Type: Electronic
• Signal, Input: Voltage
• Special Features: Low Cost
• Termination: Pins
• Voltage, Supply: 7 to 12 VDC
• Lead Free Status / Rohs Status: RoHS Compliant part

PIN FUNCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
L1
CIRCUIT DIAGRAM
Solder Links:
INLO
INHI
V+
V-
INHI
INLO
XDP
DP1
DP2
DP3
V+
V-
1
3
4
2
L1
V+
Positive power supply connection.
Negativepowersupply connection.
PositivemeasuringinputwithreferencetoIN LO.
Negativemeasuringinputwith reference toINHI.
Connect to DP1, 2 or3todisplayrequireddecimalpoint.
Connect to XDP todisplayDecimal Point 1 (199.9).
Connect to XDP todisplayDecimal Point 2 (19.99).
Connect to XDP todisplayDecimal Point 3 (1.999).
Normally Closed, connectsCOMtoINLO.
1M
R6
100k
R5
3k
R4
1.5k
R2
100nF
180k
C3
R1
R3
100nF
220nF
100nF
C1
C2
C4
100k
C5
100pF
27
28
29
31
30
32
34
33
35
36
40
39
38
INT
BUF
A/Z
IN HI
IN LO
COM
CREF+
CREF-
REF LO
REF HI
OSC1
OSC2
OSC3
IC1
V+
V- TEST
26
1
POL
bc4
37
BP
a1
b1
d1
e1
a2
b2
d2
e2
a3
b3
d3
e3
c1
g1
c2
g2
c3
g3
f1
f2
f3
5
4
3
2
8
6
7
12
11
10
9
14
13
25
23
16
24
15
18
17
22
19
20
21
R10
100k
Q1
3904
V+
11
15
13
19
17
16
21
23
26
27
29
30
12
10
14
18
20
24
22
25
9
7
5
4
2
Analogue inputs must be no closer than 1V
to either the positive or negative supply.
1
a1
a2
a3
b1
c1
d1
e1
f1
g1
b2
c2
d2
e2
f2
g2
b3
c3
d3
e3
f3
g3
b4
POL
c4
COM
COM
R11
100k
LCD1
LOBAT
DP1
DP2
DP3
199.9
8
19.99
6
1.999
3
28
3½ Digit LCD Voltmeter Module
R9
1M
R8
1M
No: 695 -Page 3 of 4
R7
1M
7
6
8
5
DP1
DP2
DP3
XDP