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WARRANTY CONDITIONS The warranty does not cover the following: Damage to the G250 resulting from reversing the polarity of battery; Damage to the G250 resulting from overloading; Damage to the G250 resulting from mechanical impacts. INVERTOR CHARGER G250-500W User’s Guide Be lg ra de , S ept em be r 2 0 02 . CONGRATULATIONS… …and thank you for choosing the G250, a voltage invertor/charger specially suited for demanding user of electrical power from mains. Apart from its unique toughness and extraordinary quality, the G250 gives you durability and reliability. Like the other devices from Gaus sts®, the G250 is produced to meet the highest quality standards. This guide introduces you to your G250 and shows you how to get the most of it. GENERAL INFORMATIONS G250 is voltage invertor which uses lead-acid battery (12V) to produce stabile alternate voltage (220V~, 50Hz), with maximal continual power of 500W. Output voltage is trapezoid simulation (PWM modulation) of sinusoidal voltage. G250 is completely automated and it has controlled battery charger, which provides maintaining of battery in stand-by condition. It has electronic protection from overloading, automatic circuit breaker in DC area and fuse in AC area, and appropriate display of mode. Due to a high quality of output signal, working voltage stability and power of G250, it has wide area of use. It could be used for power supply of phones, faxes, audio and video equipment, TV sets, computers, lightning, pumps in homeheating systems, alarms… Using of G250 is rather simplified. Once you install G250, it does not require any maintenance until the end of the lifetime of attached battery. If there is appropriate voltage in mains, connected devices are supplied directly from the mains, battery is eventually charged. In the case of fail of voltage in the mains invertor is activated and connected devices are supplied from battery, until voltage in the mains is restored or voltage of battery drops below safe level (deep discharging is not permitted). PREPARING YOUR G250 FOR USE 1. Make sure that the automatic circuit breaker, on the backside of G250, and main switch on the front side are turned off. 2. DANGER! IMPORTANT! Clamp on blue wire should be connected to negative pole of the battery and clamp on red wire should be connected to positive pole of battery. You must be ensured that the correct polarity is observed and good connections are made between clamps on blue and red wires of G250 and poles of battery. In case of reversing the polarity G250 will be destroyed. The warranty is not applicable in this case! 3. Switch the automatic circuit breaker on. If the battery is empty indicator light BAT LOW is on. USE AND PROTECTION OF BATTERY G250 is voltage invertor that uses lead-acid battery (12V). If the plug is connected to the mains and there is appropriate voltage (light indicator 220V is on), G250 works as battery charger. It takes care of voltage of battery: if voltage drops bellow 12.5V charging is started and if voltage goes above 15V charging is stopped. If the plug is disconnected from the mains or the mains is down and invertor is on, then battery is discharging and it supplies the load. Battery current depends on power of load. Larger power of load takes larger current and battery is faster discharged. If voltage of battery drops below 10.5V then G250 makes sound, which is warning that battery is almost discharged and sign that you should turn off invertor. If G250 continues to work as invertor and voltage of battery drops below 10V then light indicator BAT LOW is on, invertor is turned off and battery is charging (if mains is on). While voltage of battery rises up to 12V invertor can not be turned on. When voltage is above 12V invertor could be turned on. In this way G250 protects battery from damage and maintains its lifetime. ○○ ○○ G250 is disconnected from the mains or the mains is down and… ○○ ○● ○○ ●○ ○○ ●● ●○ ●● G250 is disconnected from the mains or the mains is down and… G250 is connected to the mains and… G250 is connected to the mains and… B a t t e ry …G250 is disconnected from the battery. …battery is completely discharged. …battery is deeply discharged (4V < Ubat < 10.5V). … battery is charging. … battery is charging and its voltage is below 12V. Supply of load M a in s Invertor ON/OFF CONVERTER 220V BAT LOW INDICATION LIGTHS - Functional mode of G250 off no off no off no off yes off yes G250 is connected to … battery is charging. ready yes the mains and… G250 is disconnected on yes ● ● ○ ○ from the mains or the … battery is discharging. mains is down and… G250 is disconnected … battery is discharging on yes ● ● ○ ● from the mains or the and its voltage is below mains is down and… 10.5V. G250 is disconnected … battery is discharged off no ● ○ ○ ● from the mains or the below 10V. mains is down and… NOTE: ○ - light is off, ● - light is on. Mains is down if its voltage drops bellow 175V. If state of invertor is off and if then mains voltage fails supply of load will be off. ●○ ●○ 4. Connect the plug into the mains. If there is electrical power and appropriate voltage, indicator light 220V is on and process of automatic charging of battery is started. 5. By turning the main switch G250 is in STAND BY. Indicator light ON/OFF is on. When voltage in the mains fails invertor is activated, indicator light CONVERTER is on and indicator light 220V is off. When voltage in the mains is restored invertor is automatically turned off and process of charging of battery is started. 6. Devices you want supply you should plug in socket on front side of G250. Supply of devices connected like this is from the mains, until there is appropriate voltage or from invertor and battery, when voltage in mains fails, main switch is on and battery is not discharged. 7. You can turn off invertor whenever. 8. If light indicator LOW BAT goes on during work of invertor you must turn it off to prevent voltage of battery to drop below safe level (deep discharging of battery is not permitted). PRODUCT FEATURES 1. Power: 500W (cont.), 750W (peak) 2. Output voltage (full load): 220Veff, +10%, -15%; 50Hz trapezoid simulation of sinusoidal 3. Output waveform: voltage 4. Supply voltage: 10.5 - 15V (lead-acid battery 12V) 5. Current protection: 50A (cont.), 75A (peak) 6. Voltage stability: PWM 7. Idle current: below 150mA 8. Soft start: yes 9. Time delay on switch between 5ms mains and battery: 10. Separation between mains and yes invertor: 11. Voltage of battery when invertor 10.5V (sound warning), 10V (shutdown) turns off: 12. Automatic battery charger: yes 13. Time of recharging the battery: 4.5hours (Cn=45Ah) 14. Voltage of battery when charger 15V turns off: 15. Size (W x L x H): 250x210x110mm 16. Weight: 5kg Time [hh:mm] of autonomous use of G250 in dependence of power of load and capacity of battery Power of load [W] Capacity of battery Type of load 45Ah 55Ah 66Ah 30 1. HI-FI stereo (mini), cassette player, radio 2. Wireless phone 60 1. TV (newer type) 2. Light bulb (60W) 3. Fax 6:00 7:30 9:00 100 1. TV + VCR + satellite receiver 2. Light bulb (100W) 3. Pump in home-heating system 3:30 4:30 5:15 120 1. Telephone exchange (Panasonic) 2. TV (older type) 3. PC with 14” color monitor 3:00 3:45 4:30 150 1. HI-FI stereo 2. Two light bulbs (2x75W) 2:20 3:00 3:30 200 1. TV + light bulb + fax 2. Telephone exchange + TV + cassette player 3. Other combination of appropriate power 1:45 2:15 2:45 11:30 15:00 17:30 RECHARGING – WARNING! As you can see in table, larger capacity of battery gives you longer time of autonomous use of G250. There is one more fact that you should be aware of: larger capacity of battery takes longer time of recharging. You can use battery with larger capacity than shown ones in table, but since the recharging of battery is controlled and limited that will take longer time of complete recharging. However, you can use incomplete recharged battery (after some time of recharging, when voltage of battery reaches 12.5V), but in that case time of autonomous use of G250 will be considerable shorter. Only complete charged battery gives you full time of autonomous use of G250. OVERLOADING – CAUTION! You must not connect device to G250 whose power is more than 300W or devices whose total power is more than 300W! There are many devices that need huge amounts of power: devices with asynchronous motors and with resistance heaters. Asynchronous motor has transition period after starting and it last until nominal speed is reached. During that period through motor flows excessive current, so it needs huge power. There are many devices in household with asynchronous motor: cooling devices (refrigerators, air conditioners), vacuum cleaners, fans, drills, etc. Resistance heater is resistor with small resistance and through it flows excessive current all the time. In that case resistor develops high temperature and takes large amount of power from the mains. There are many devices in household with resistance heaters: ovens, irons, heaters, hair dryers (they have both the asynchronous motor and the resistance heater), etc. G250 is not designed for that kind of devices! . In case of overloading G250 will be destroyed. The warranty is not applicable in this case! DISCONNECTING – WARNING! You should be aware of fact that G250 is not turned off when main switch is turned off. If the plug is connected to the mains and there is appropriate voltage (light indicator 220V is on), G250 works as battery charger. It takes care of voltage of battery: if voltage drops bellow 12.5V charging is started and if voltage goes above 15V charging is stopped. Therefore if you want to disconnect G250 (in case of replacing the battery or removing G250 from one place to another) you should first to unplug G250 from the mains and then take off the clamps from the battery. If you want to connect G250 again, you should follow the procedure described in PREPARING YOUR G250 FOR USE. During the work of G250 you should take care of connections between G250 and battery. If one clamp falls off the battery terminal you should first unplug G250 from the mains, then put fallen clamp back on battery terminal and, at the end, plug in the G250 in the mains.