SP400 Martel Electronics, SP400 Datasheet - Page 3

• Manufacturer Part Number: SP400
• Description: LCD DPM 200MV 3.5 DIGIT
• Manufacturer: Martel Electronics
• Series: SPr
• Type: Voltmeterr

Specifications of SP400

• 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 ~ 7.5VDC, 6 ~ 15VDC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 227-1053

SP 400
PIN FUNCTIONS
1. V+
2. GND 0V power supply to the meter (3.0 to 7.5V meter power supply applications only).
3. BL-
4. INH Positive measuring input.
5. INL
6. DP1
7. DP2
8. DP3
9. V-
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
LBAT
CIRCUIT DIAGRAM
RA and RB factory fitted options
Positive power supply to the meter.
Connect to the meter's negative supply voltage to switch on the LED backlighting.
For meter supply voltages above 5V, add a series resistor Rs.
See Applications for suitable circuit diagrams.
Negative measuring input.
Connect to V+ to display DP1 (199.9).
Connect to V+ to display DP2 (19.99).
Connect to V+ to display DP3 (1.999).
Negative power supply to the meter (6.0 to 15.0V meter power supply applications only).
Normally Open. Connects INL to COM.
Normally Closed. Cut this link to disable the low battery warning sign.
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com
www.lascarelectronics.com
3½ Digit Backlit LCD Voltmeter Module
Pins 11 and 18 not fitted as standard
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