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Gralab
450R Timer
Product
# GR450R
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The Model 450r s a single memory-switching timer. It offers simple
operations and adjustable, highly visible, 2-digit LED display.
It has easily adjustable membrane controls for display brightness,
two countdown time ranges-seconds to 99 and tenths of seconds to
9.9, three audio signal choices-off, metronome and end-of-cycle
tone, and AC outlet power "on" or timer controlled operation
selection.
Time setting
knobs are easy to grasp and click into place for each time increment.
The start/reset bar is easily identified and activated by the touch
of a finger. |
Features
- Solid state
electronics
- Adjustable,
2-digit LED display
- Automatic
reset
- Countdown
in seconds or tenths of seconds
- Three audio
signal choices
- Better than
± .01% @ 1 second accuracy plus ± .005% repeatablility
relative to power frequency (20° C ambient, no load)
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| Minimum Setting |
1/10 second |
| Total Range |
99 seconds,
by seconds and 1/10 seconds |
| Automatic Buzzer |
3 audio signal
choices |
| Accuracy |
Better than
+/-.01% @ 1 second relative to power frequency (20ÅC ambient, no load)
|
| Repeatability |
+/-.005% @
10 seconds (20ÅC ambient, no load) |
| Voltages |
Input voltage
100-130 VAC, 50 or 60 Hz: 210-250 VAC, 50 or 60 Hz for use in countries
other than the U.S. or Canada
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| Power rating
of AC outlets |
120 VAC |
| Max Lamp Load
|
600W |
| Max Resistive
Load |
1200W |
Darkroom
| Gralab Timers
12/19/06
Prices subject to change without notice
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