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Airotronics TBKA Miniature Solid-State Repeat Cycle Timers
Solid-State Repeat
Cycle Timers - TBKA Miniature
Timers
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TBKA
Miniature Timers
TBKA timers
are solid-state output units with digital timing and
come in a 15/8" square case.
They are available only for 8-40 VDC.
Ease of installation and hook-up is a primary design
benefit. All models with integral time adjustment
knob or factory-fixed time require only three connections.
Download
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Timing
Mode
Application
of input voltage to the timer starts the “On” time
delay. At the end of the “On” time delay, the “Off”
time delay starts. At the end of the “Off” time
delay, the load is again energized, the timer returns
to the “On” time delay, and the cycling continues
as long as input voltage is applied. Removal of
the input voltage resets the timer.
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| FEATURES |
- Digital
timing, solid-state MOSFET output
- 1 Amp
current load handling
- 10 Amps
100 ms (millisecond) surge handling
- Wide DC
voltage range
- 1% Repeat
accuracy
- Virtually
unlimited time ranges
- Factory-fixed
or variable-timing adjustment
- Totally
encapsulated for protection from harsh environments
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- Single
#6 screw mounting through center mounting hole
- Standard
6.35mm (.250") quick connect blade terminals
- 100% Operational
testing before shipping
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| BASIC
WIRING AND DIMENSIONS |
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| SPECIFICATIONS |
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Repeat Accuracy: 0.1% under fixed conditions
Timing Ranges: 0.1 sec. to 24 hours (1 sec.,
10 sec., 100 sec., and 1000 secs. are standard.)
Special time ranges available upon request
Reset/Recycle Time: 100 milliseconds
Tolerances: Fixed:
- 10% of nominal time (optional: – 5%, 1%)
- Variable: -0%, +15%
- Limit: -10% at minimum time
Recycle Effect: None
Temperature Ranges:
- Storage: -40° C to +85° C
- Operating: -25° C to +85° C
Life Expectancy:
- No predictable failure if used with operating
parameters
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Protection:
- Polarity Protection: All DC units have reverse
polarity protection
- Transient Protection: 18 joules
- Dielectric Strength: 1800V RMS 60 Hz
Power Requirement: .25 watts max.
Weight: 3 oz. (85g) maximum
Solid-State Output: SPST (N.C.)
Load Current:
- 1 amp continuous, 10 amps
- 100 ms surge
Time Cycle Interrupt: Resets timer to original
state
(Input Voltage Break)
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| SELECTION
PROCEDURE |
| Mode of
Operation |
Series |
Input Voltage |
Time Ranges |
Time Adjustment
Method |
Repeat
Cycle On/Off
Delay |
TBKA |
4.
8-40 VDC |
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VARIABLE TIME PERIODS
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0001 .1 to 1 sec.
0010 .1 to 10 sec.
0100 1 to 100 sec.
1000 10 to 1000 sec.
Any range up to 24 hours available on special
order.
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FIXED TIME PERIODS
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Specify
in seconds (S) or hours (H)
Examples:
- 400S is 400 seconds
- 05H5 is 5.5 hours
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A. Variable integral, knob on timer
B. Fixed, internal, factory set
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