Instruction/ maintenance manual of the product 833 Curtis Computer
Go to page of 21
MODEL 833 “FUEL ” GAGE/HOUR METER W/“PUSH- Read Instructions Carefully ! ® !.
Saf ety Instructions This instrument was manuf actured and tested according to the applicable technical standards . It complies with all the safety regulations as shipped from the f actory . Installation and star tup must be performed by skilled personnel.
! T ABLE OF CONTENTS P age 1. Model Encodement 2 2. T echnical Specifications 2.1 Electrical 4 2.2 Mechanical 5 2.3 Environmental 6 3. Installation 7 4.
2 1. MODEL ENCODEMENT 833RB vvvv w V oltage 0024 Reset lev el B = 2.09 VPC.
3 xy zzzz ! Discharge profile C = Adjustable (See T able 3.) Output J = N.C. holding rela y Contact rating = 3 Amps when continuously closed, 1 Amp when opening 316O O = Cur tis logo.
4 2. TECHNICAL SPECIFICA TIONS 2.1 Electrical Operating Range ± 25% of nominal voltage Operating Current V oltage (volts) Nominal Current (mA) Maximum Current (mA) 24 18 28 Rela y Contact Ratings V o.
2.2 Mechanical Displa y Battery state-of-charge: 10-bar , tr i-color LED Hour Meter: 6-digit LCD , 5mm high Resolution Hour Meter 99,999.9 Hours Hardware Kit Mounting brack et, thumbnuts or M4 He x nuts (2), lock w ashers (2), mating connector Molex No .
6 2.3 En vironmental T emperature Operating: - 4 0 ° C t o + 65 ° C (Standard Mode) -10° C to +65° C (Push-to-read Mode) Storage: - 5 0 ° C t o + 9 0 ° C Humidity 95% RH (Non Condensing) at 38°C Shock & Vibration 2.
7 ! 3. INST ALLA TION The Model 833 Installation Kit includes a pre-assembled mating connector with 5” ter minated wires. Ask for Curtis Part Number 15369002.
8 ! Pin 5 = Battery – Connect to battery ground as close to batter y as possible . Pin 2 = Keys witch The ke yswitch turns on and off the LED displa y of the battery discharge indicator. Monitoring of the batter y continues when Pin 2 is turned off and the display is not lit.
9 Pin 3 = Relay (+) Pin 3 connects in series with the lift coil circuit (or the circuit to be switched at empty). For holding rela y (J), Pin 3 must be electrically closer to batter y + than Pin 4 Pin 4 = Relay (–) Pin 4 also connects in series with the circuit to be s witched at empty .
Ta b le 1. Hour Meter Contr ol Lines & Impedance Specifications Model Lo w V olt a ge High V oltage Min. Impedance Maximum Minim um HRM+ HRM- 24 VDC 5.
! 11 NO TE : 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 .
12 CUR TIS Model 833 Rear Vie w !.
13 Connections f or T ypical Model 833 Application V ehicle system voltage is the higher of the two oper ating vo ltages of a dual voltage unit. Hour meter measures “ke yswitch on” time.
14 4. OPERA TION Displa y The Cur tis 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 proper ly charged is right most LED (1) lit. As battery’s state-of-charge decreases , successive LEDs light up , one at a time.
15 Push-to-read When the front button is depressed, the LCD will displa y the hour meter reading for 6 seconds min. The hour meter will not accumulate time during this operation.
16 5. T r oubleshooting The follo wing checklist should help y ou to troubleshoot an y problems with the instrument. Problem P ossible Causes No display T er minals not connected or improper voltage S.
17 6. Maintenance Model 833 Series is not ser viceable in the field. Units returned to the factory within the warranty period (see inside backco ver) will be replaced without charge.
Guarantee - Cur tis Instruments’ products and/or components are guaranteed against def ects in workmanship and material f or a period of two y ears, or as defined in the individual product literature, from date of shipment from our f actory , when applied in a proper application within specified ratings.
CURTIS INSTRUMENTS, INC. 200 Kisco A venue, Mt. Kisco, NY 10549 T el. (914) 666-2971 • FAX (914) 666-2188 53024 REV A 7/01.
An important point after buying a device Curtis Computer 833 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Curtis Computer 833 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Curtis Computer 833 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Curtis Computer 833 you will learn all the available features of the product, as well as information on its operation. The information that you get Curtis Computer 833 will certainly help you make a decision on the purchase.
If you already are a holder of Curtis Computer 833, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Curtis Computer 833.
However, one of the most important roles played by the user manual is to help in solving problems with Curtis Computer 833. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Curtis Computer 833 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
