ATC 339 Timer Delay Relay

Sords Electric Stock the Automatic Timing FM approved 339B TDR

An economical solid-state TDR with octal plug-in base, the 339 maintains excellent repeat accuracy despite wide voltage and temperature varia- tions. even after long periods of down-time. Two models are available. Each has six dial selected ranges from fractions of a second to as long as 10 hours. Each model has a selectable on-delay or interval timing mode.

WIDE CHOICE OF RANGES: In addition to the short ranges expected of an electronic TDR, the 339 is also available with ranges as long as 10 hours. An unusually versatile timer, the 339A has six dial-selected ranges—from 0.3 SEC to 3 hours or 1 SEC to 10 hours—and provides dial-adjustable timing periods between 0.075 seconds and 10 hours. A single 339 model thus accommodates the needs of a wide range of appli- cations, allowing the user to select easily and precisely—an appropriate range to permit optimum setting accuracy. The dial face automatically dis- plays the selected range.

CYCLE PROGRESS INDICATION: The 339’s LED annunciator provides a unique and effective method of cycle progress indication. Off before timing, the LED blinks at an ever-increasing rate as the cycle progresses; once every 3-1/2 seconds during the first 10% of the cycle, twice during the second 10%, and so on. At time-out, the LED stays on constantly, pulsing at a high rate. (In the 1 and 10 second ranges, the LED is off before timing, steady on during timing, and pulsing on after time-out.) 

HIGH ACCURACY: The 339’s timing circuit is not a simple RC circuit, but utilizes the sophistication of a proprietary integrated circuit that includes counting technology along with a stable oscillator to provide repeatable time delays.

MULTIPLE TIMING MODES: Every 339 can be used for either ON- delay or interval timing operation. The timing mode is selectable by a switch on the 339 housing.

The ATC 339B is FM approved or Factory Mutual for use with combustion systems.  Usually used as a purge timer.

ATC 339B359Q2X
Six ranges, .3 or 3 Seconds, Minutes or Hours
120/60 voltage, 8 pin Octal Socket, Factory Mutual Approved-FM

ATC 339B200Q2X
Six ranges,  1 or 10 Seconds, Minutes or Hours
120/60 voltage, 8 pin Octal Socket, Factory Mutual Approved-FM

The ATC 339B Time delay relay can be ordered as well with 240 volts AC, 24 ACDC or 12 VDC

339B359R2X - 240 VAC
339B359T2X - 24 volts AC/DC
339B359E2X - 12 vdc

339B200R2X - 240 VAC
339B200T2X - 24 volts AC/DC
339B200E2X - 12 VDC




Sords Electric
216-765-4230
www.sordselectric.com

ATC 304G Percentage Timer for Industrial Control

Sords Electric Sells the ATC 304G Percentage Timer
Automatic Timing and Controls % Timer Model 304G

Percentage Timers work by turning on a load for a percent of the dial Range.
If you have a 60 second (1 minute) percentage timer and set the dial to 50%, the timer will be on for 30 seconds and of for 30 seconds. If the dial is set to 75% then the load is on for 45 seconds and off for 15 seconds. Percentage timers start their cycling function when the control switch closes. As long sat the switch remains closed, the load continues to turn on and off at regular intervals.  This cycling stops when the control switch is open. A recycle timer is similar and comes in 2 types; equal on and off times and different on and off times also know as a flip flop timer.  A Flip Flop timer can have an ON time in seconds and an off time in Hours or vice versa. See ATC 422AR Flip Flop Timer.

The ATC 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 3O4G 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 ATC 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 ATC 304G provides continuous adjustment of on time between 5 and 95%.

The ATC 304G comes standard in the 120 SECOND 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 304G percentage timer it will reset. When power is restored, the 304G will begin a new time cycle.

Percentage Timers can control heaters, lights, ovens, heat trace cable, motors, and pumps.

Percentage Timers are found in industrial plants, waste water plants, agriculture processes, irrigation, stadiums and steel processes.

T go to our website and buy the 304G timer click below.
ATC 304G400Q00XX Percentage Timer

To get a quote on any ATC timer, please use our ATC Timer Parts Form HERE.

800-929-2845
info@sordselectric.com