E48329
CYCLE PROGRESS INDICATION: The 339’s LED annunciator provides a unique
and effective method of cycle progress indication. Off before timing, the LED
blinks at an ever-increasing rate as the cycle progresses; once every 3-1/2
seconds during the first 10% of the cycle, twice during the second 10%, and
so on. At time-out, the LED stays on constantly, pulsing at a high rate. (In the
1 and 10-second ranges, the LED is off before timing, steady on during timing, and pulsing on after time-out.)
HIGH ACCURACY: The 339’s timing circuit is not a simple RC circuit, but
includes counting technology along with a stable oscillator to provide repeatable time delays.
MULTIPLE TIMING MODES: Every 339 can be used for either on-delay or
interval timing operation. The timing mode is selectable by a switch on the
339 housing.
OPERATION
Timing begins when the start switch is closed. This starts an oscillator
which runs at a frequency determined by the time setting. A fixed number
of counts from the oscillator determines the end of the time cycle. The
time required to accomplish this depends on the oscillator frequency.
During timing, a LED located on the dial face blinks. For the first ten percent of the cycle, the LED repeatedly blinks once followed by a pause, for
the second 10%, it blinks twice and so on indicating the cycle progress. It
flashes rapidly and continuously after time out.
ON-DELAY MODE: At time out, the built-in relay transfers its contacts.
These contacts remain transferred until the start switch is opened or
power is removed by some other means. The 339 then resets and is
ready for another cycle.
INTERVAL MODE: When timing begins, the built-in relay transfers its contacts. The contacts remain transferred until time out. The timer will not
start again until the start switch is opened or power is removed by some
other means. The 339 then resets and is ready for another cycle.
Plug-In Adjustable
Time Delay Relay
MODEL NUMBER
MODEL NUMBER
TIME DELAY RELAYS
WIDE CHOICE OF RANGES: In addition to the short ranges expected of an
electronic TDR, the 339 is also available with ranges as long as 10 hours.
An unusually versatile timer, the 339 has six dial-selected ranges—from 0.3
seconds to 3 hours or 1 second to 10 hours—and provides dial-adjustable
timing periods between 0.075 seconds and 10 hours. A single 339 model
thus accommodates the needs of a wide range of applications, allowing the
user to select easily and precisely—an appropriate range to permit optimum
setting accuracy. The dial face automatically displays the selected range.
339B Series
An economical solid-state TDR with octal plug-in base, the 339 maintains
excellent repeat accuracy despite wide voltage and temperature variations/
even after long periods of down-time. Two models are available. Each has six
dial selected ranges from fractions of a second to as long as 10 hours. Each
model has a selectable on-delay or interval timing mode.
339B
RANGE
Six dial-selected ranges 359
(.3 or 3 SEC, MIN, HR)
Six dial-selected ranges 200
(1 or 10 SEC, MIN, HR)
VOLTAGE & FREQUENCY
120 VAC, 50/60 Hz
240 VAC, 50/60 Hz
24 VAC, 50/60 Hz, 24 VDC
12 VDC
Q
R
T
E
ARRANGEMENT
ON-Delay, Interval Mode
Special
2
0
FEATURES
Standard X
Special K
ACCESSORIES
8-Pin surface/DIN rail socket
Hold down for above socket
(2 required)
Plug-in socket kit (8-pin)
000-825-85-00
339-025-03-00
319-261-45-00
WIRING
TERMINAL WIRING
Automatic Timing & Controls
800.727.5646
automatictiming.com
51
339B Series
SPECIFICATIONS
DIMENSIONS (INCHES/MILLIMETERS)
MODELS Choice of two multi-range units.
All models operate in on-delay or interval mode.
RANGES Choice of two models
Six dial-selected ranges:1.0 and 10 SEC, MIN,
HR or 0.3 and 3 SEC, MIN, HR
MINIMUM SETTING 3% of range, except 75 mSEC on 0.3 SEC and
1.0 SEC ranges.
LOAD RELAY TYPE
DPDT 10 AMPS resistive at 30 VDC
or 250 VAC (or less) 1/8 HP @120 VAC
LIFE
10 million operations with no load
100,000 operations with:10 AMPS at
30 VDC (or less) or 10 AMPS at
250 VAC (or less)
CONTACT
Silver Nickel
MATERIAL
TIME DELAY RELAYS
TEMPERATURE 0° to 140°F (-17° to 60°C)
RATING
MOUNTING Plug-in octal base; mounts in any position with
retaining clips.
OPTIONS: Surface mounting socket
DIN rail mounting socket
Panel-mounting adapter kit
Plug-on socket
Rear facing terminal socket.
POWER 120 VAC 95 - 132 VAC,50/60Hz
REQUIREMENTS
Inrush - .4A Running - .025
240 VAC 190 - 264 VAC, 50/60 Hz
Inrush - .2A Running - .013A
24 VAC/DC 19.2 - 26.4 VAC/DC
Inrush - .4A Running - .075A
12 VDC 9.6 - 13.2 VDC
Inrush - .25A Running - .10A
REPEAT ACCURACY Varies as a function of line voltage and temperature
but not of reset time
a ±0.5% at constant temperature and voltage.
(or ±15 mSEC whichever is greater)
b ± 1%* at constant voltage and full temperature
range. (or ± 25 mSEC which ever is greater)
c ± 1.5%* at constant temperature and full voltage
range. (or ± 25 mSEC whichever is greater)
d ± 2%* over full voltage and temperature range.
(or ± 30 mSEC, which ever is greater)
*Variations of line voltage must be within 95 and 132V;
of temperature between -17° and 60°C (0° and 140°F)
00008258500 SOCKET
WITH 339-025-03-00
HOLD DOWNS
RECYCLE The timer can be used as a pulse generator with L1 power
CHARACTERISTICS wired though its NC contacts. The pulse will be 35 mSEC to
90 mSEC long.(40 mSEC typical pulse.)
a 0 to 20 mSEC power interruption; Guaranteed no reset.
b 20 mSEC to 90 mSEC; it may reset.(40 mSEC typical reset).
c Over 90 mSEC guaranteed to reset. The TDR will reset
properly and not start timing when subjected to an
open start switch leakage of 1.5 mA or less.
(Prox switch and Triac drive applications)
WEIGHT 2.5 oz. (70 g)
52
Automatic Timing & Controls
800.727.5646
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