6
second to 20 minute 12Vdc timer board with choice of either "instant-on
delayed off" or "delayed-on and hold" operation with a relay output (C, NO,
NC).
Countdown starts when power is applied to the board. The relay changes
state at the end of the user set delay period and remains in that
condition until the power is removed.
An onboard jumper selects the operation mode. A small On/Off switch can be used to reset the timer.
The delay time is set using a series of onboard jumpers and a trimpot. The number of "counts" made is set using a bank of nine possible jumper positions (8, 16, 32, 64, 128, .... to 8192). A trimpot allows you to set the time period for each "count".
Timing range as supplied is from about 6 seconds to a maximum of two hours. Up to 22.7 hours is possible using different components for the RC network (not provided).
| Technical Specifications | |
|---|---|
| Power Supply | Regulated 12Vdc (Order Code PSU446 and connector 778.106) |
| Current consumption | 15mA standby, <40mA active |
| Delay Times Approx. (see text) |
6 seconds minimum 2 hours maximum |
| Counting periods | 8, 16, 32, 64, 128, 256, 512, 1024, 4096 and 8192 |
| Output modes | On-to-Off or Off-to-On |
| Output Type | 1 x SPDT Relay |
| Maximum Output Load (Resistive) |
Up to 48Vac or 28Vdc @ 2 Amps max. (Relay Datasheet) |
| Output Connections | NO, NC, C ( Relay
FAQ) |
| Dimensions | 54 x 58 x 25mm |
| Fixing Holes | 4x M3 |
| Board Connections | Screw terminal blocks |
| Product Formats | SELF-ASSEMBLY Electronic Kit (KT
PRE-ASSEMBLED Electronic Module (AS) more |
| Documentation |
User
Manual |
Please see our Electronic Timers page for more products like this

