User guide

Martel Electronics Corporation Tel: [phone]
PO Box 770 Email: [e-mail]
Londonderry, NH 03053 USA Web: www.martelcorp.com
© Copyright 2005 Martel Eectronics Corporation All trademarks are the property of their respective owners. P/N 000000000 Rev. x
PRODUCT DESCRIPTION
The EM32-1B-LED is a 3 ½ digit LED voltmeter which is designed to be panel mounted in most low and medium
volume applications. The meter features 8mm digit height, 3 decimal points, auto-polarity, auto-zero, 200mV full
scale reading and a low current consumption. This product is designed so no soldering is required. Connection is
via screw terminals, and options are selected via jumper links. The module features a round metal bezel,
requiring a 32.5mm (1.28") diameter cut-out. It is secured with the nut provided. Protection from the front to IP 67
/ NEMA 4X standards is achieved by placing the rubber seal between the module and panel during assembly.
FEATURES
•8
• 200mV d.c. Full Scale Reading
• 50mA @ 5Vd.c. Operation
•
• Selectable
• Requires 32.5mm (1.28") Diameter Cut-out
• IP67 / NEMA 4X Protected
mm (0.31") Digit Height
Decimal Points
Auto-zero and Auto-polarity
TYPICAL APPLICATIONS
• Panel Mount Instrumentation
• Process & Control
• Automotive
ORDERING INFORMATION
Stock Number
Standard Meter EM32-1B-LED
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).
ELECTRICAL SPECIFICATIONS
Specification Min. Typ. Max. Unit
Accuracy (overall error) * 0.1 % (±1 count)
Linearity 1 count
Sample rate 2.5 samples/sec
Operating temperature range 0 50 °C
Temperature stability 150 ppm/°C
Warm-up time 10 minutes
Supply voltage (V+ to V-) 4.75
Input leakage current (Vin = 0V) 1 10 pA
+
5 5.25 V d.c.
Supply current 50 100 mA
* To ensure maximum accuracy, re-calibrate periodically.
** Operation of the meter beyond the maximum supply voltage rating may cause permanent damage to the meter.
Unless otherwise noted, specifications apply at T =25°C, V =5Vd.c. and are tested with the module configured for floating input mode.
A supply
EM32-1B-LED Round Hole Mounting LED Voltmeter
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