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It complies with all the safety regulations as shipped from the factory. Installation and startup must be performed by skilled personnel. Failure to install and operate the unit in accordance with these instructions may result in damage or injury. If safe operation of the instrument can no longer be ensured, stop and secure it against accidental operation. If instrument failure or malfunction may cause personal injury or material damage, use additional safety measures such as limit switches, guards, etc. Read the Operating Instructions carefully before startup. ! ! Note the safety instructions marked with this warning symbol in this manual. TABLE OF CONTENTS Page 1. Model Encodement 2 2. Technical Specifications 2.1 Electrical 4 2.2 Mechanical 5 2.3 Environmental 6 3. Installation 7 4. Operation 14 5. Troubleshooting 16 6. Maintenance 17 ! 1. MODEL ENCODEMENT 833RB vvvv w Voltage 0024 Reset level B = 2.09 VPC 2 x y zzzz Discharge profile Output 316O C = Adjustable J = N.C. holding relay O = Curtis (See Table 3.) Contact rating = logo 3 Amps when continuously closed, 1 Amp when opening ! 3 ! ! 2. TECHNICAL SPECIFICATIONS 2.1 Electrical Operating Range ± 25% of nominal voltage Operating Current Voltage (volts) Nominal Current (mA) Maximum Current (mA) 2418 28 Relay Contact Ratings Voltage: 200 VDC (max) Current: 1 ADC (max) (3 ADC max when continuously closed) Power: 50 W (max) 4 2.2 Mechanical Display Battery state-of-charge: 10-bar, tri-color LED Hour Meter: 6-digit LCD, 5mm high Resolution Hour Meter 99,999.9 Hours Hardware Kit Mounting bracket, thumbnuts or M4 Hex nuts (2), lock washers (2), mating connector Molex No. 39-01-2085, w/pins No. 39-00-0039, no connectors in bulk shipments. Panel Cutout 52mm, 21/16” diameter ! 5 2.3 Environmental ! Temperature Operating: -40°C to +65°C (Standard Mode) -10° C to +65° C (Push-to-read Mode) Storage: -50°C to +90°C Humidity 95% RH (Non Condensing) at 38°C Shock & Vibration 2.2 G, 20-200 Hz; 20 minute period; X,Y,Z, 13 cycles each Enclosure IP65 (face) 6 3. INSTALLATION The Model 833 Installation Kit includes a ! pre-assembled mating connector with 5” terminated wires. Ask for Curtis Part Number 15369002. The Model 833 fits into a dash-panel cutout measuring 21/16” (52 mm). Terminal Assignment (see diagram on page 13) Pin 8 = Battery + Pin 8 to battery + 7 Pin 5 = Battery – Connect to battery ground as close to battery ! as possible. Pin 2 = Keyswitch The keyswitch turns on and off the LED display of the battery discharge indicator. Monitoring of the battery continues when Pin 2 is turned off and the display is not lit. The hour meter display is unaffected by Pin 2, although it cannot accumulate more time as long as the keyswitch pin is not energized. The control input HRM (+) is enabled by the keyswitch. Pin 2 is connected to the vehicle’s keyswitch. Pins 1, 2, 6 & 7 = Hour Meter Control (+) In normal operation, Pin 1, 6 or 7 are connected when using normal hour meter function. It is possible to OR the hour meter between the three inputs so that it accumulates the total time either system is on. Hour meter control logic is detailed in Table 2. 8 Pin 3 = Relay (+) Pin 3 connects in series with the lift coil circuit (or the circuit to be switched at empty). For holding relay (J), Pin 3 must be electrically closer to battery + than Pin 4 Pin 4 = Relay (–) Pin 4 also connects in series with the circuit to be switched at empty. 9 Table 1. Hour Meter Control Lines & Impedance Specifications Model Low Voltage High Voltage Min. Impedance Maximum Minimum HRM+ HRM 24 VDC 5.0 VDC 15.0 VDC 90 k. 30 k. Table 2. Hour Meter Control Logic Key HRM HRM HRM Hour Icon switch (+) (+) (+) meter Off x x x Display only Steady On VH x x On Flashing On x VH x On Flashing Onx VH x On Flashing On VL VL VL Display Flashing or open or open or open only ! 10 NOTE: Fuses and Wires Regulations may require that the Model 833 be ! fused. If installing a fuse, use a 10A fuse wired with 1.5mm or equivalent wire. The voltage drop across the fuse, its holder, and connectors must be less than 1% of the nominal system voltage. Discharge Adjustments Table 3 lists the voltages per cell under load that correspond to an empty indication on the gauge (lockout point). Table 3. Discharge Adjustment Settings Setting Volt/Cell at Empty K 1.57 L 1.63 M 1.68 N 1.73 (factory setting) O 1.78 P 1.82 Q 1.84 R 1.86 S 1.89 T 1.91 U 1.93 11 ! ! CURTIS Model 833 Rear View 12 ! Connections for Typical Model 833 Application Vehicle system voltage is the higher of the two operating voltages of a dual voltage unit. Hour meter measures “keyswitch on” time. 13 14 4. OPERATION Display The Curtis Model 833 combines in one instrument a completely solid state LED battery state-of-charge indicator, an LCD hour meter, and lift lockout. Only when battery is properly charged is right most LED (1) lit. As battery’s state-of-charge decreases, successive LEDs light up, one at a time. 2nd from left LED flashes indicating “energy reserve” (70...