GraLab 450 User manual

Model 450
Electronic Timer Operating Instructions
764-25 9807
Specifications
Size:
3.5" x 4" x 8"
Accuracy:
± .01% @ 1 second relative to power frequency (20°C ambient, no load)
Repeatability:
± .005% @ 1 second relative to power frequency (20°C ambient, no load)
Temperature Range:
0°C to 55°C
Humidity:
0 to 95% non-condensing
Voltages:
As printed on ratings label
Power Ratings:
As printed on ratings label
Timer Range:
SECS: 1 - 99 seconds 1/10 SECS: .1 - 9.9 seconds
PRECAUTIONS
•Use only at AC voltage printed on ratings label.
•Ensure outlet load does not exceed maximum specified on
outlet receptacle.
•Always turn timer OFF before plugging in or removing power
and accessory plugs.
•Always protect timer from jars and shocks.
•Avoid spilling liquids on timer.
•Do not spray with or immerse in water.
Thank you for purchasing America’s premier timing device. Please take
a moment to read these instructions and familiarize yourself with your
GraLab timer. On page two of this document we have provided a list
of basic features and controls as well as illustrated diagrams and three
examples on how to use your GraLab timer. Once you are comfortable
with the basic features of your timer, we are confident you will enjoy
it for years to come.
Before trying these examples, read the precautions, plug the timer into
an AC outlet and turn the timer “on”.
Please call us at 1-937-433-7600 or e-mail us at [email protected]
if you have any questions or comments.
900 Dimco Way •Centerville,Ohio 45458
P.937-433-7600 • F.937-433-0520 •www.dimcogray.com •[email protected]

Model 450
Electronic Timer Operating Instructions
764-25 9807
Basic Features and Controls
Timer Front
1. Two digit display
2. Time range controls
3. Time entry controls
4. Audio selection
5. START/RESET bar
6. AC outlet controls
7. Display intensity
Timer End
8. AC outlet
9. ON/OFF master switch
10. Foot switch jack
11. Power cord
Timer Back
12. Keyslots for wall mounting
13. Non-skid feet
14. Ratings label
MODEL 450 UNSWITCHED TIMER OPERATION
1. Set display intensity level.
2. Set time range.
3. Set time.
4. Select audio.
5. Set outlet control to TIME.
6. Press START/RESET.
See Note 1.
MODEL 450 SINGLE-CYCLE SWITCHING OPERATION
1. Plug controlled device into timer AC outlet.
2. Set display intensity level.
3. Set time range.
4. Set time.
5. Select audio.
6. Set outlet control to TIME.
7. Press START/RESET.
See Notes 1-2.
Notes:
1. Pushing the START/RESET bar during a cycle stops the timer and
automatically resets it to the originally set time.
2. To adjust the controlled device prior to the timing operation:
Set the outlet control to “focus”, make adjustments and then
reset the outlet control to “time”.
900 Dimco Way •Centerville,Ohio 45458
P.937-433-7600 • F.937-433-0520 •www.dimcogray.com •[email protected]
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TONE
SECS
METRO OFF
HI DIM
OUTLET
OFF
OUTLET
GraLab 450