SP 300 LASCAR, SP 300 Datasheet - Page 3

• Manufacturer Part Number: SP 300
• Description: Voltage Meter
• Manufacturer: LASCAR

Specifications of SP 300

• No. Of Digits / Alpha: 3-1/2
• Meter Function: DC Voltmeter
• Meter Range: 0mV To 200mV
• Digit Height: 9.4mm
• Operating Temperature Range: 0°C To +50°C
• Meter Signal Input: Voltage
• Character Size: 0.37"
• No. Of Pins: 8
• Accuracy: +/- (0.1% Of Input +/- 1 Count)
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

SP 300
Specifications liable to change without prior warning
PIN FUNCTIONS
1. V+
2. 0V
3. COM Ground for analogue section of A/D converter.
4. IH
5. IL
6. DP1
7. DP2
8. DP3
Note:
A negative supply is generated internally and mirrors the positive supply. For example: if V+ is +5V, then
the internally generated V- is -5V. When measuring with the input referenced to the same supply rail as
that of the panel meter, then the limitations on the input range are (V- + 1.5V) to (V+ - 1.5V).
Solder Links:
LCOM
CIRCUIT DIAGRAM
"
#
!
Normally Open. Connects IL to COM.
Positive power supply to the meter.
0V power supply connection to the meter.
It is actively held at 3.05V (nom) below V+ and must not be allowed to sink excessive current
(>100 A) by, for instance, connecting to a higher voltage.
Positive measuring input.
Negative measuring input.
Connect to 0V to display DP1 (199.9).
Connect to 0V to display DP2 (19.99).
Connect to 0V to display DP3 (1.999).
m
www.lascarelectronics.com
SP 300
Issue 5
January/2007
3½ Digit LED Voltmeter Module
M.C.
No: 695 - Page 3 of 4
Applies to SP 300/1
$
&
%
$
'