S O L I D S TAT E B AT T E RY ‘ F U E L’ G A U G E & H O U R M E T E R MODEL 803 FEATURES ‘Fuel’ Gauge Features • Multicolor 10-bar LED displays state of charge (5 green, 3 yellow, 2 red LEDs). • Flashing red LED signals “energy reserve” alarm at 70% discharged. • Double flashing red LEDs signal “empty” alarm at 80% discharged. • Normally closed relay opens at 80% discharge for lift lockout. This unique holding relay will only lock out at the end of a lift cycle. • Recognizes improperly charged battery. • Keyswitch activated LED display (Fuel gauge electronics are energized as long as they remain connected to the battery). • Wide range adjustable discharge profile. • Dual reset methods in each gauge: Open Circuit Reset for vehicles that exchange batteries and Charge Tracking Reset for vehicles whose batteries remain connected to the gauge during recharge. DESCRIPTION Curtis Model 803 combines in one instrument a completely Hour Meter Features solid state battery discharge indicator, an LCD hour meter and • Monitors use-time throughout the equipment’s lifespan. lift lockout, housed in a 52mm case. Void of moving parts, this • Records and displays up to 99,999.9 hours on its LCD, rolls combination instrument is exceptionally reliable even in severe operating environments. • Hour meter LCD remains on as long as battery is connected. APPLICATION • Stores latest total in EEPROM nonvolatile memory, without Model 803 is a combination gauge ideally suited for electrically powered vehicles. over and continues to count and display. need of power. • Operates and displays in temperatures from –40˚C to +65˚C under harsh conditions of vibration, shock, moisture and dust. System Voltages Available in single voltages from 12 VDC to 80 VDC, or in dual voltage of 24/36, 36/48, 24/48 or 72/80 VDC. Operating range is ± 25% of nominal voltage. www.curtisinstruments.com

MODEL 803 SPECIFICATIONS • Hour meter accuracy: +0.1% • Mating Connector: Molex 8 pin, 39-01-2085 • Operating Temperature: –40°C to +65°C • Discharge Range: Empty from 1.57 volts/cell to1.93 volts/cell • Shock & Vibration: Meets SAE J 1378 • Reset Levels: Open circuit reset (OCR)at 2.09 volts/cell Charge Tracking Reset (CTR) tracks battery recharge • Humidity: 95% RH (non-condensing) at +38°C • LCD Character Height: 5 mm MODEL NUMBER DESCRIPTION 803 RB Case Style 2448 Voltage RB=Round (52mm) 12 w/black bezel 2436 2448 3648 7280 DIMENSIONS m m B Reset Type /Level C Discharge Profile J Output B=CTR/OCR...