ATC, 319E-030-F-1-C, 319E Series, Plug-In Adjustable AC/DC Time Delay Relay, Five Dial-Selected Ranges (0.3 Sec, 3 Sec, 30 Sec,3 Min, 30 Min), ON-Delay
Features:
- Ranges: 0.3 Sec, 3 Sec, 30 Sec, 3 Min, 30 Min
- High Accuracy
- Universal Input Power Supply
- Output Relay DPDT 7A at 120VAC
- Indicating LED turns on during timing
- 8-pin octal plug-in base
- Ranges change by pulling and twisting setting knob until it clicks
- ON-Delay
Wide Choice of Ranges
In addition to the short ranges expected of an electronic TDR, the 319 is also available with ranges as long as 100 minutes, for AC or DC operation. An unusually versatile model, the 319 five ranger has five dial-selected ranges - from 0.3 Sec to 30 Min and provides any dial-adjustable timing period between 0.02 Seconds and 30 minutes. A single 319 model thus accommodates the needs of a wide range of applications, allowing the user to select easily and precisely an appropriate range to permit optimum setting accuracy. The dial face automaticallydisplays the selected range. The 319 offers a choice of five dial-adjustable fixed ranges between 1 Sec and 30 Sec.
Cycle Progress Indication - model 319E
All options incorporate a light-emitting diode (LED) which is on during the time cycle, off at the end of timing. The 5-range option also includes a Second LED which separately indicates the status of the output relay: on when energized, off when de-energized.
High Accuracy
The 319's timing circuit is not subject to the large plus error that plagues many electronic TDRs after long periods of downtime: it maintains rated accuracy regardless of reset time variations, provided that there is at least 0.1 Sec between cycles for Model 319. This model hold unusually high repeat accuracy in the face of wide voltage and temperature swings.
Operations
Timing begins when the start switch is closed. At the same time, the Timing LED goes on and a relaxation oscillator starts to run at a ratedetermined by the set-pot. The 319 times out when the oscillator count is equal to the level set by the range switch, a Second LED turns onat time-out. At time-out, the load relay is energized, transferring its contacts. Reset occurs when the start switch is opened or when power isinterrupted.
For more information, please see 
Data Sheet
