VEHICLE CONTROLLER MONITOR MODEL 841 FEATURES • Attractive, easy-to-read, 8 character dot matrix Liquid Crystal Display enhances the look of any vehicle. • Standard models display hours of use, battery state-of-charge and fault code messages from a Curtis motor speed controller. • 3 LED’s: • Green to indicate that hour meter is active. • Amber to warn of battery state-of-charge lower than 20% remaining. • Red to warn that controller fault has occurred or battery stateof-charge lower than 10% remaining. • Interfaces directly with Curtis Model EVC255, 1244, 1254 motor controllers and displays various fault codes. • Relay lift lockout to prevent deep discharging of batteries. DESCRIPTION Displays various system parameters, such as battery state-ofcharge, operating hours or maintenance status from a Curtis motor speed controller or other vehicle controller. • Can be programmed to work with a variety of Curtis motor speed controller models as well as controllers of other manufacturers. • Molded-in rear Molex style connector provides a low-cost, fast and reliable installation. APPLICATION • Front sealed (IP65) for use in harsh environments. The Curtis Model 841 is ideal for use in material handling vehicles Options such as pallet trucks, walkies, stackers and order pickers as well as other equipment with a need to display battery state of charge, operating hours and controller fault codes. • Heater available for freezer applications. • Backlighting for reading in low lit environments. • Module design for efficient, lower cost panel mounting. www.curtisinstruments.com

MODEL 841 MODEL NUMBER DESCRIPTION 841 - R - V - R - D - XX - YY - 0 Model Housing Voltage Reset Opt. Discharge Opt. Fault Code Sequential Logo Read Opt. Number 24VDC O= Curtis 36VDC N = No Logo 43.6 48VDC MAX. Volts per cell 80VDC C ode Empty Full Code Ocr (Full ) Ctr (Full) Ctr (Empty) N 1.730 2.040 B 2.090 2.35 2.10 8 5 G 1.750 1.970 D 2.060 2.32 2.10 4 1 W 1.850 2.020 T 2.028 2.28 2.10 SPECIFICATIO 51.5 MAX. NS • Display: • Storage Temp. Range: 8-character, alphanumeric, dot-matrix LCD. 42.5 MAX. • Operating Voltage Range: 80V nominal: 60 - 100 VDC 48V nominal: 36 - 60 VDC -40°C to +80°C...