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Digital
Counters & Timers
High-Performance Industrial
Readouts & Controls
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1. |
Frequency, Rate
Meter, Flow Rate Indicator |
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Two independent scalable pulse-input channels from 0 Hz to 1 MHz. Channels
may be combined arithmetically. One channel can display total while
other displays rate. High read rate for control applications:
AC line frequency can be
measured to 50.0000 or 60.0000 Hz in a few line cycles. Ideal
for use as a tachometer or readout of a turbine flow meter. |
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2. |
Totalizer (pulse
input)
Two independent scalable pulse-input channels. Count up or down to a
preset at rated up to 1 MHz. Scaled rate and total from the same electronic counter.
Scaling for direct readout in engineering units, such as gallons or cubic
feet based on counts from a turbine flow meter. One channel can display total
while other displays rate. |
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3. |
Process Totalizer
(analog input)
Displays and totalizes 0-1 mA, 4-20 mA, or 0-10 V process signals.
Square root extraction is standard for flow applications, allowing
display of volume from the 4-20 mA signal of a flow
transducer with a linear or squared output. |
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4. |
 Digital
Stopwatch
Designed to time
single events or processes which produce start and stop pulses.
Resolution to 0.2 µs,
duration from 1 µs
to 999,999 hours. Time may
be displayed in HH.MM.SS clock format with 1 s resolution or in decimal H, M or S
format with
six-digit resolution. Multiple events can also be
accumulated. |
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5. |
Time Interval Meter
Designed to time and average periodic events from
1 µs to 199.99 s. A timing
resolution to 0.2 µs. |
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6. |
A+B, A-B, AxB, A/B, A/B-1 Draw Meter
Arithmetic functions (+, -, /, x) on dual channels A
and B open a
world of possibilities. For
example, add or subtract rates from two flow meters for combined scaled
flow or volume. Display the ratio of flow rates, RPM of rollers, or
speed of moving belts. Draw, which is obtained by subtracting 1 from ratio,
can be used to indicate elongation or shrinkage of material as it passes
between rollers. |
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7. |
Batch Controller (pulse input)
A low-cost controller for repetitive fill operations. The typical
application utilizes a flow meter input and two built-in relays: a Prewarn relay slows down the pump near
a preset to avoid overshoot and a Batch relay
stops the pump at the preset. |
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8. |
Batch Controller (analog input)
Same capabilities as the Laureate pulse-input batch controller, but for 0-1 mA, 4-20 mA, or 0-10 V process signals,
as made possible by a built-in voltage-to-frequency (V-to-F) converter.
Square root extraction is standard for use with flow meters. |
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9. |
Phase Angle Meter
Exceptionally fast response (up to 20 updates per second) and high accuracy for low frequencies, such as AC line frequency.
A resolution of 1º, 0.1º or
0.01º is user-selectable. Accuracy is 0.01% up to 100 Hz, 0.1% at 1 kHz,
and 1% at 10 kHz. |
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10. |
 Quadrature
Position & Rate Meter
Accepts low-level differential or
single-ended 5 V logic level quadrature signals from shaft encoders to
display scaled position or scaled rate. One, two or four
transitions may be counted at a maximum combined rate of 250 kHz and be
mathematically scaled to display in engineering units from -999,999 to +999,999.
An analog output scaled to the display and relay outputs are optional. |
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11. |
Duty Cycle Meter
Displays ON or OFF
period as a percentage of total period over a programmed gate time from
10 ms to 199.99 s. A resolution of 1%, 0.1% or 0.01% is user-selectable.
Applications include monitoring
modulated proportional control systems and pulse-modulated systems, such
as radar, lasers or packet radio. |
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