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Gralab 300 Timer
(Electro/Mechanical)

Minutes and
seconds can
easily be
read across
the room in
total
darkness,
making the
300 ideal
for film
processing,
especially
the precise
timing
required by
color
processing.
The
60-minute
time range
can be set
in minutes
for
developing
and seconds
for enlarger
control. Two
hands permit
quick
setting by
seconds,
minutes or
combinations
of seconds
and minutes.
An exclusive
dual-cam
mechanism
provides
extreme
accuracy for
long time
intervals:
+/-015% at
maximum dial
setting. Two
separate
outlet
receptacles
control an
enlarger or
printer and
safelight by
a
combination
time/focus
switch. Each
outlet has a
600 watts
rated
capacity for
operating
most film
processing
equipment.
The Model
300 can be
used with a
relay for
heavier
loads.
The case is
made from a
blend of
hybrid
plastics and
measures 7
1/2" x 7
1/2" x 2
1/2". It is
exceptionally
strong,
withstands
high impact,
resists
chemicals
and
moisture,
and is
electrically
non-conductive.
The case has
a recessed
handle in
the back and
keyholes for
wall
mounting. |
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Plastic boot
over the
power switch
prevents
corrosion
from
chemicals or
water. |
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Contemporary,
easy-to-read
numerals on
a large 6
1/2"
diameter
face.
Numerals,
dial and
hands are
luminous. |
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Setting knob
for fast
fingertip
control. |
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Precision
accuracy
assured by
electric
synchronous
motor. |
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Buzzer
automatically
signals end
of
developing
period |
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Sturdy
polycarbonate/PET
case with
rubber base
pads resists
impact,
chemicals
and
moisture. |
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Gray,
texture,
non-slip
finish has
contemporary
look. |
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Keyholes in
back make
wall
mounting
easy. |
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Three-wire
grounded
cord. |
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Time Range |
5 Seconds to
60 minutes
in Seconds &
Minutes |
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Accuracy |
.015% @
maximum
setting |
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Max. Lamp
Load |
600W |
|
Max.
Resistive
Load |
1200W |
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Max. Motor
Load |
1/3 HP |
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Number of
Outlets |
(2) 1 for
Enlarger or
Printer, 1
for
Safelight |
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Audible
Options |
Buzzer
automatically
signals end
of Timing
period
can be set
for desired
volume |
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Memory |
No |
|
Display |
easy-to-read
numerals on
a large 6
1/2"
diameter
face.
Numerals,
dial and
hands are
luminous. |
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Auto Reset |
No |
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Foot Switch |
No |
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Voltage |
Input
voltage
100-130 VAC,
50 or 60 Hz |
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Dimensions |
7 1/2" x 7
1/2" x 2 1/2 |
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Housing
Material |
Sturdy
Polycarbonate |
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