OEM 1B LASCAR, OEM 1B Datasheet - Page 3

• Manufacturer Part Number: OEM 1B
• Description: Voltage Meter
• Manufacturer: LASCAR

Specifications of OEM 1B

• No. Of Digits / Alpha: 3-1/2
• Meter Function: DC Voltmeter
• Meter Range: 0mV To 200mV
• Digit Height: 8mm
• Operating Temperature Range: 0°C To +50°C
• Meter Signal Input: Voltage
• Character Size: 0.31"
• Height: 0.65"
• Accuracy: +/- (0.1% Of Count +/-1 Count)
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

OEM 1B
pecifications liable to change without prior warning
PIN FUNCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
CIRCUIT DIAGRAM
V-
V+
IHI
ILO
COM
RLO
RHI
NC
DP1
DP2
DP3
XDP
Negative power supply to the meter.
Positive power supply to the meter.
Positive measuring input.
IHI must be no closer than 1.6V to either the positive or negative supply, when using the
internal 100mV reference.
Negative measuring input.
ILO must be no closer than 1.6V to either the positive or negative supply, when using the
internal 100mV reference.
Ground for the analogue section of the A/D converter. It is actively held at 3.05V (nom.) below
V+ and must not be allowed to sink excessive current (>100mA) by, for instance, connecting
to a higher voltage.
Negative input for the reference voltage.
Positive input for the reference voltage.
Do not connect.
Connect to XDP to display DP1 (199.9).
Connect to XDP to display DP2 (19.99).
Connect to XDP to display DP3 (1.999).
Connect to DP1, DP2 or DP3 to display required decimal points.
www.lascarelectronics.com
EM 1B
Issue 3
January/2007
3½ Digit LCD Voltmeter Module
M.C.
No: 695 - Page 3 of 4
Applies to EM 1B/3
C