Description
The 4975 is a microcontroller base countdown interval timer with digital display of both the
interval timing cycle in progress, and the time-of-day. When not functioning as an
interval timer, the display can be set to show the time-of-day. When operating as an
interval timer pressing the START TIMER switch energized a high current set of output
contacts and starts counting down the time. During the timing cycle the output relay is
energized and the display will countdown to zero, at which time the output relay
de-energizes. When the countdown to zero is reached, the display will indicate 00:00 and
an audible alarm will chirp for five seconds.
Specification
| Operating Voltage |
115 or 230V AC 50/60 Hz. |
| Output Contacts |
SPST (Power Relay) .250 (1/4") Quick
Connect Terminals, rated 30 amperes inductive or resistive at 125/240VAC. |
| Timing Mode |
Interval
- Countdown, with Time-of-Day. |
| Timing Accuracy |
+/- 0.05 % of Timing Interval period.
Time-of-Day +/- 2 minutes per month. |
| Operating Temperature |
0 to 70 deg C. |
| Terminations |
All Connections .250 Quick Connect Terminals (5
places). |
4975 Specifications , click to view, right
click - Save As ... to download.
Ordering Information
| Model |
Operating Voltage |
Time Base |
| 4975 |
-115 115VAC
-230 230VAC |
-1 99:99 hours : minutes
-2 99:99 minutes : seconds
-3 9999 minutes
-4 9999 seconds |
Example : 4975-115-2 operates from 115 VAC,
with a time base of 99:99 minutes : seconds. |
