We provide two versions of this JUMBO sized LCD display. The PM-1028A is designed to run off of a 9V (7-11V) independent power source while the PM-1208B 5V common ground version uses power from the power supply circuit of the instrument it is installed in. The figure height is 21mm. High quality SMT construction provides high reliability and the decimal point selection is conveniently done by wire jumpers. These panel meters implement dual slope integration A-D conversion measuring methods. The PM-1028A and PM-1028B come in an easy to install "snap-in" mountable bezel (typical rectangular hole size 88mm x 41mm).

		Jumbo LCD 9V Independent Power Supply Version (PM-1028A) PM-1028A 1+ $12.95ea. 10+ $10.89ea. 100+ $7.99ea. 250+ $6.25ea.
		Jumbo LCD 5V Common Ground Power Supply Version (PM-1028B) PM-1028B 1+ $13.95ea. 10+ $11.84ea. 100+ $8.89ea. 250+ $7.15ea.
		Jumbo LCD 5V Common Ground Panel Meter w/ Back Light (PM-1028B-BACKLIT) PM-1028B-BACKLIT 1+ $15.95ea. 10+ $13.89ea. 100+ $10.49ea. 250+ $9.65ea.

Features Jumbo LCD display, 21mm Figure Height Single 5 Volt Common Ground (PM-1028B) or 9V Independent Power Supply (PM-1028A) Voltage Divider Resistors included and max. Measured Range Selectable by Soldering a Selection Joint Easy Bezel Snap-In Design (84mm x 41mm rectangular hole typical) Decimal point selectable by jumping on PCB Automatic Polarity indication Guaranteed zero reading for 0 volt input High input impedance (>100MW) Possible Applications Voltmeter Thermometer PH Meter DB Meter Watt Meter Current Meter Capacitance Meter Lux Meter LCR Meter Other Industrial & Domestic Uses Specifications Max Reading 1999 (3-1/2 digits) with automatic polarity Indication Method LCD Display Measuring Method Dual Slope Integration A-D Converter System Overrange Indication "1" shown in the display Reading Rate Time 2-3 readings per second Input Impedance >100MW Accuracy ±0.5% (23° ±5°C <80%RH) Power Dissipation 1mA DC typical Decimal Points Selectable with wire jumper Supply Voltage PM-1028A: 7-11 V DC independent PM-1028B: 5V DC common ground Size 85x41mm Operation A) Select the max. measuring range and decimal point jumping as follows: Max. Voltage to be Measured Proper Voltage Divider Selection Decimal Point Fixing Method 200mV Shortcircuit 0.2V joint Jump P3 20V Shortcircuit 20V joint Jump P2 200V Shortcircuit 200V joint Jump P3 500V Shortcircuit 500V joint - B) Connect 7-11V DC (independent for PM-1028A) or 5V DC (common gound, for PM-1028B) power supply to panel meter, pay special attention to proper polarity, independent or common ground power supply. C) For ranges other than 200mV, make the right selection, input accurate 2/3 x max Voltage generated by calibrator (Fluke 5500A, e.g. 100.0V for 200.0V range) and carefully compare against and adjust the semi-fixed resistor to have same reading in LCD. D) Connect the input voltage to be measured to VIN and GND. The input voltage should be DC only.