12

Automatic Timing & Controls

800.727.5646

atcdiversified.com

OPERATION

The 304G solid-state percentage timer comes standard in a 120 SEC

range with 15 SEC, 30 SEC, 60 SEC user configurable ranges. Addition-

ally, all second ranges can become minute ranges by changing jumper

J11 . 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 or MIN., 60 SEC or MIN. by changing jumpers on

the PC board. Each of these ranges can also be made minutes range by

changing 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.

MODEL NUMBER

MODEL NUMBER

304G

Q

00

RANGE

Multi-range, Jumper Selectable*

400

15/30/60/120 SEC or MIN

*Factory Set to 120 Sec Range

15 SEC

004

30 SEC

006

60 SEC

007

VOLTAGE & FREQUENCY

120 VAC, 50/60 Hz

Q

DIAL CALIBRATION

Standard

00

FEATURES

Standard

XX

Special

XK

Solid-State Percentage Timer

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 10 Amp @ 120 VAC

POWER REQUIREMENTS 120V, 50/60 Hz; 50mA running

current.

TERMINALS

4 screw terminals accessible at rear;

wiring diagram on housing

WEIGHT

Net: 5.6 oz.

SHIPPING:

1 lb.

IND. CONT. EQ.

101F

E48329

Automatic Timing & Controls

800.727.5646

atcdiversified.com