Description
The model 438RI (Adjustable Interval Time Capsule) is an all Solid State In-Line
timing device providing Interval timing control
of any load device operating from 115 or 230V AC or DC. Timing is Adjustable from 1 to
1000 seconds. When power is applied, the 438RI turns "On" permitting full load
current to flow. At the end of the preset timing period the 438RI turns "Off"
and permits only leakage current to flow through the load. The interval timing action can
be repeated by removing and re-applying the operating voltage.
Specifications
| Operating Voltage |
115 or 230VAC or DC |
| Frequency |
50/60 Hz. for AC inputs. |
| Output |
0.25 ampere inductive with inrush current to 8 amperes for 8
milliseconds. 10 volt maximum drop across timer when output is ON, 3mA leakage current
through timer when output is OFF. |
| Timing Mode |
In-Line Interval |
| Timing Range |
Adjustable from 1 to 1000 seconds, Add 10,000 (10K) ohms for
each second required above 1 second. |
| Timing Repeatability |
+/- 1% at stabilized operating voltage and temperature. |
| Transient Protection |
6000 volts as delivered through a source resistance of 30
ohms with a max duration of 8.3 milliseconds. |
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Ordering Information
| Model |
Voltage |
Time Range Adjustment |
| 438RI |
-115 (105-135VAC)
-230 (200-277VAC) |
From 1-1000 seconds, 10k Ohms per second |
Example : 438RI-115 operates on 115 VAC with
a delay of 10 seconds using a 9k Ohm resistor |