SP 3000 pages

SP 300

3½ Digit LED Voltmeter Module

PRODUCT DESCRIPTION
The SP 300 features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user
selectable. The SP 300 features a negative rail generator which enables the meter to measure a signal referenced to its
own power supply 0V. The bright red LED display ensures excellent readability under low light conditions. It can be
blanked in applications requiring low power operation. The module is easily fitted into the panel, using the fixing clip
provided. The module's low cost means it will suit high and low volume applications. The design of the panel meter's
housing and seal ensures splash proofing in many applications.

FEATURES
• 9.4mm (0.37") Digit Height
• 200mV d.c. Full Scale Reading
• 50mA @ +5V d.c. Power Supply
• Auto-zero and Auto-polarity
• Programmable Decimal Points
• Bright Red LED Display
• Display Blanking Facility
• Simplified Connection
• Splash Proof

TYPICAL APPLICATIONS

ORDERING INFORMATION

• Precision Instrumentation Systems
• Power Supply Monitoring
• Test Boxes
• Panel-Mount Indication

Stock Number
SP 300

Standard Meter

ELECTRICAL SPECIFICATIONS
Specification

Min.

Accuracy (overall error) *
Linearity
Sample rate
Operating temperature range
Warm-up time
Temperature stability
Supply voltage
Supply current
Input leakage current (Vin = 0V)

0
4.75

Typ.
0.1

2.5
10
150
5
50
1

Max.
±1
50
5.25
10

Unit

% (±1 count)
count
samples/sec
°C
minute
ppm/°C
V
mA
pA

* To ensure maximum accuracy, re-calibrate periodically.

SAFETY

To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s pins must not exceed
60Vdc. The user must ensure that the incorporation of the panel meter into the user’s equipment conforms to the
relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and
Laboratory Use).

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