Instruction manual

1. Introduction
AI-TEK TACHTROL 10 &30 (TT) and TACHPAK 10 & 30 (TP) series instruments are
dual input, industrial tachometers used to measure the rate of events from a given
process. Using the proportional signal outputs from either passive or active sensors, TT
and TP can measure, monitor and react to events as simple as the speed of a shaft, or as
complex as relating the differential in speed of 2 independent rotating objects.
TACHTROL
plus
provides additional function as a remote display and also serves as a
gateway for secure, remote programming. Both TT and TP share a common processing
platform. This commonality allows both to perform identical tachometry functions,
streamlines programming and minimizes the learning curve. The main difference
between the two is the characteristic integrated display function found in all TACHTROL
series tachometers.
1.1. Overview
A speed sensor placed near a moving target such as a rotating gear generates a
series of pulses whose frequency is proportional to the speed of the target. This
information is utilized by the tachometer as the basis for its function. Some key
features are as follows. See specification section for specific model and option
applicability.
• Wide range of AC or DC power
• Greatly improved instrument accuracy, processing speed and response time.
• Frequency, period or counter modes.
• User-defined inputs for logic level, averaging, alarm set points and hysteresis,
• Signal normalization and math functions allow mathematical manipulation of
input signals. Results can be displayed along with user-defined units.
• Accepts sinusoidal and square wave inputs as found in variable reluctance and
digital output speed sensors.
• Accepts bi-directional sensor inputs and will decode quadrature or direction
signal logic
• 2 solid state relays (fast response time) and 2 mechanical relays (high power)
• Analog output: 0-20mA, 4-20mA, -20-0-(+) 20mA (can be used with bi-
directional sensor)
• Two programming methods: Front panel on display or USB2.0 connectivity to
TACHLINK, a PC / Windows-based GUI (Graphical User Interface). The
GUI can be used to display data, program, perform security functions,
diagnostics, analog output calibration and real-time data logging.
• In the case of tachometer instruments embedded in explosion proof or NEMA
4X enclosures, remote access solves the problem of programming by making
use of an IR link to allow full front panel control via a hand-held remote.
• Utility RS485 communication also allows full GUI function but over longer
distances (up to 8000 ft)
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