SP200 Martel Electronics, SP200 Datasheet - Page 3
![LCD DPM 200MV 3.5 DIGIT](/photos/6/48/64894/sp200_sml.jpg)
SP200
Manufacturer Part Number
SP200
Description
LCD DPM 200MV 3.5 DIGIT
Manufacturer
Martel Electronics
Series
SPr
Type
Voltmeterr
Datasheet
1.SP200.pdf
(4 pages)
Specifications of SP200
Measuring Range
200mVDC
Display Style
Black Characters, Green Background
Display Type
LCD
Display Face Size
1.38" L x 0.88" W (35.1 x 22.4mm)
Display Digits
3.5
Display Digits - Height
0.384" (9.75mm)
Backlight
Green
Mounting Type
Panel Mount
Termination
PC Pins
Voltage - Supply
3.5 ~ 5.25V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
227-1051
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SP 200
PIN FUNCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. COM Ground for analogue section of A/D converter.
11. IH
12. IL
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).
CIRCUIT DIAGRAM
1
2
11
12
10
7
3
8
V+
NC
GND
DP3
DP2
DP1
R I
RO
BL
Positive power supply to the meter and LED backlighting.
Not connected.
0V power supply connection to the meter.
Connect to GND to display DP3 (199.9).
Connect to GND to display DP2 (19.99).
Connect to GND to display DP1 (1.999).
Reference voltage input for the meter's A/D converter.
Precision reference voltage output. Connect to RI for normal operation.
Connect to GND to switch on the LED backlighting.
It is actively held at 2.8V below V+ and must not be allowed to sink excessive current
(>100 A) by, for instance, connecting to a higher voltage.
Positive measuring input.
IH must be no closer than 1.5V to either the positive or negative supply.
Negative measuring input.
IL must be no closer than 1.5V to the positive supply.
www.lascarelectronics.com
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
3½ Digit Backlit LCD Voltmeter Module
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