LLAC4

4-Channel Low-Level AC-Conversion Module
LLAC4

LLAC4

OrderableConfigurable

4-Channel Low-Level AC-Conversion Module

Model:
LLAC4
Item Number:
16710
Warranty:
1 year
Lead time:
14 days

Overview

LLAC4 4-Channel Low-Level AC Conversion Module (Ships as 16314 & 17529)

The LLAC4 is a small peripheral that you can use to increase the number of low-level ac signals that your data logger can monitor. The LLAC4 is often used to measure up to four anemometers, and it is especially useful for wind profiling applications.

Key Advantages

Expands Capacity
Increases number of signals data logger can monitor

Technical Description

The LLAC4 enables four data logger control ports to emulate pulse-counting channels by converting the low-level ac signals to logic levels read by the control ports. To use the LLAC4, the data logger control ports must accept high frequency pulses. The LLAC4 typically measures anemometers but can measure other sensors that output pulse counting signals. 

Minimum AC Input Voltage versus Output Square Wave Frequency

Input Sine Wave
(mV RMS)
Output Range (Hz)
20 1.0 to 20
200 0.5 to 200
2000 0.3 to 10,000
5000 0.3 to 20,000

Benefits

  • Ideal for applications that require high numbers of pulse channels, but fewer control ports, such as in wind prospecting

Specifications

Function
Increases the number of low-level ac signals that a data logger can monitor.
Operational Temperature
-40° to +85°C
Number of Channels
4
Power
0.1 mA

(@ 12 Vdc)

Input Hysteresis
16 mV

(@ 1 Hz)

AC Coupling Removal of DC Offset
≤ ±0.5 V
Maximum AC Input Voltage
±20 V
Cable Length
0.6 m

(2 ft)

Dimensions
5.4 x 8.0 x 2.5 cm

(2.1 x 3.1 x 1.0 in.) without base mounting flanges

Dimensions
5.4 x 11.2 x 2.5 cm

(2.1 x 4.5 x 1.0 in.) with base mounting flanges

Weight
92 g

(3.2 oz)

Related Resources

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Corporate Address
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Logan, UT 84321
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Email Address
sales@campbellsci.com

As a trusted leader in measurement systems for more than 50 years, our top priority at Campbell Scientific has always been to provide the most accurate, reliable data for research and industry.