Marsh Bellofram Automatic Timing & Controls Division 304G Series Solid State Industrial Percentage Timer - Marsh Bellofram - #1

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800.727.5646 automatictiming.com Automatic Timing & Controls 304G Series Percentage Timer // 304G Series 5 The 304G solid-state percentage timer comes standard in a 120 SEC range with 15 SEC, 30 SEC, 60 SEC user configurable ranges. Additionally, all second ranges can become minute ranges by cutting jumper J0. The 304G is easily panel mounted with 4 screws. It utilizes an integrated circuit technology for high accuracy timing. CONTACTS: The relay contact is capable of switching 10 A to a resistive 120 VAC or 30 VDC load. It is capable of driving a 1/3 HP load at 120 VAC. CYCLE PROGRESS INDICATION: The 304G has a pilot light that is on solid during the relay off time. It blinks at a faster rate during the relay on time: once every 3.5 seconds during the first 10% of the cycle, twice during the second 10% and so on. HIGH ACCURACY: The 304G's timing circuit is not a simple RC circuit. It utilizes the sophistication of a proprietary integrated circuit that includes counting technology along with a stable oscillator to provide repeatable time delays. CONVENIENT ADJUSTMENT: Graduated in easily read 1% increments, the 304G provides continuous adjustment of on time between 5 and 95%. The 304G comes standard in the 120 SEC range but is user configurable for the 15 SEC, 30 SEC, 60 SEC by cutting jumpers from the PC board. Each of these ranges can also be made minutes range by cutting a jumper. Its solid-state circuitry repeatedly closes the SPST load switch for a percentage of the time cycle, as set on the timer dial, and opens it for the remainder of the cycle. When the dial pointer is set below 3%, the load switch stays open for the full cycle; it remains closed when the pointer is set above 98%. This is true for all seconds ranges. Minute ranges have a 0.01% minimum. If power is interrupted to the timer it will reset. When power is restored, the timer will begin a new time cycle. So l i d - St a t e P e r c e n t a g e T i m e r \\\SPECIFICATIONS MODEL 304G Non Plug-In CONTACT RATINGS (non-inductive) 10A at 120 VAC TEMPERATURE RATING 32° to 120°F (0° to 50°C) SETTING ACCURACY ±5% of range 5 to 95% on time, in 1% graduations. FULL ON, FULL OFF FEATURE. When pointer is set below 3%, load switch contacts are open continuously; above 98%, contacts are closed continuously in all seconds ranges. Minute ranges have a 0.01% minimum. RANGES Standard 120 SEC range three configurable ranges of 15 SEC, 30 SEC, 60 SEC, 15 MIN, 30 MIN, 60 MIN and 120 MIN LOAD RELAY One SPST Relay POWER REQUIREMENTS 120V, 50/60 Hz; 50mA running current 240V, 24V and 24 VDC also available TERMINALS 4 screw terminals accessible at rear; wiring diagram on housing WEIGHT Net: 5.6 oz. Shipping: 1 lb. MODEL NUMBER >>>>>> 304G Range 400 Q 00 XX Multi-range, Jumper Selectable* 15/30/60/120 SEC *Factory Set to 120 Sec Range 15 SEC 004 30 SEC 006 60 SEC 007 Voltage & Frequency 120 VAC, 50/60 Hz 240 VAC, 50/60 Hz R 24 VAC, 50/60 Hz T 24 VDC N Dial Calibration Standard Reverse Dial 01 Features Standard Special XK \\\OPERATION