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Adtech - industrial instruments and measurement solutions
ADTECH - Analog Digital Technology, Inc.
Instrumentation and Measurement Solutions

Adtech Model ADM 20 Amplitude DiscriminatorThe Adtech Model ADM 20 Amplitude Discriminator/High-Low Selector Module provides a single output that represents either the highest or lowest of 2,3, or 4 input signals. It utilizes precision comparator networks to provide a bumpless transition from signal to signal. Selection of high or low select operation is achieved by a single jumper selection. A Three input median signal selector is available when specifying option I27.

The ADM 20 delivers standard process current or voltage signals on the output with a maximum of 10 mV P/P output ripple.

Recalibration to other desired ranges is accomplished easily.

 

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Adtech AIM 37 Analog Integration ModuleThe Adtech Model AIM 37 Analog Integration Module computes the analog integral of the input variable over periods of up to 2hours.

In the AIM 37, the analog integrator provides a standard process voltage or current output proportional to the integrated input over a selected time period. Effectively, it averages the input over a preset period and updates the output after each period.

The integration time may be internally preset or controlled by an external reset contact.

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Adtech Model FSM 55 Frequency Scaling ModuleThe Adtech Model FSM 55 Frequency Scaling Module converts or scales the pulse rate output of a wide variety of prime flow sensors to convenient engineering units for display on a totalizing counter. It can be used for such applications as turbine meters, positive displacement meters or speed measurements by magnetic pick-ups.

The FSM 55 solves scaling problems economically and accurately.

Two decades of scaling are standard. Four and six decades are optionally available when specifying options I 34 and I 35 respectively.

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Adtech Model GCM 36 Gap Controller ModuleThe Adtech Model GCM 36 Gap Controller Module is used to stop oscillation in feedback control loops to reduce mechanical wear out of actuators.

Use of the GCM 36 can prevent actuator "hunting" in such applications as damper controls, combustions processes and extrusion pressure control.

The GCM 36 accepts all standard current and voltage process signal inputs.

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Adtech Model MFM 32 Mass Flow ModuleThe Adtech Model MFM 32 Mass Flow Module consists of a single module that will provide both temperature and static pressure correction of a differential pressure measurement taken across an orifice plate. The inputs accept standard process currents and voltages. See the Product Data Bulletin for specific computation information.

An exclusive output option (O44) provides a pulse rate output along with the standard analog output.

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Adtech Model RBM 98 Ratio and Bias ModuleThe Adtech Model RBM 98 Ratio and Bias Module provides an accurate means of adding or subtracting a desired amount of bias to the input signal and/or changing the ratio (gain) relationship of the output to the input span.

The input bias has a range of 0 to 100% of full-scale input, and ratio has a range of 0.1-10. An output bias of up to 50% of the output span is a standard feature.

The RBM 98 provides standard process current or voltage signals on the output with a maximum of 10 mV P/P output ripple.

It offers a convenient way of interfacing ratio station signals to a computer system or other process instrumentation. Recalibration to other desired ranges is accomplished easily.

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Adtech Model SHM 60 Sample and Hold ModuleThe Adtech Model SHM 60 Sample and Hold Module provides an accurate and economical single channel memory of an analog process input signal.

The SHM 60's digital memory provides indefinite hold time with no decay. The external command input may be a dry contact or a solid state switch rated 24 VDC at 2 mA, or a voltage pulse of 9-30 VDC.

The SHM 60 provides four modes of operation. Refer the Product Data Bulletin for specific details.

The SHM 60 provides standard process current or voltage signals on the output with a maximum of 10 mV P/P output ripple.

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Adtech Model SIT 58 Squared IntegratorThe Adtech Model SIT 58 Squared Integrator converts an analog input into a variable pulse rate output proportional to the square root of the input.

The SIT 58 handles all standard process voltage and current inputs and provides a 24 VDC pulse output capable of driving most electromechanical counters. A relay contact output can be provided when specifying Option O17. For electronic counters, an optional voltage pulse output is also available.

Zero, rate, and drop-out controls are provided by infinite resolution multiturn potentiometers. Recalibration to other ranges is convenient via simple strap selection of output ranges and the adjustable drop-out feature.

Product Data Bulletin (PDF)

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Adtech Model SLM 62 Signal Limiter ModuleThe Adtech Model SLM 62 Signal Limiter Module provides an accurate and economical means of limiting the output signal to pre-determined levels via independent high and low limit adjustments.

The SLM 62 converts a current or voltage input to a standard process current or voltage signal output with a maximum of 10 mV P/P output ripple.

Recalibration to other desired ranges is accomplished easily.

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Adtech Model SRT 30 Square Root TransmitterThe Adtech Model SRT 30 Square Root Transmitter provides accurate and economical conversion of squared input signals to any standard process current or voltage signal output with a maximum of 10 mV P/P output ripple.

An exclusive output option (O44) provides a pulse rate output along with the standard analog output. Pulse rate adjustment is provided by an infinite resolution rate potentiometer.

An adjustable zero cut-off/dropout is provided to avoid a false low signal. Input zero, output zero and span adjustment controls are also provided by infinite resolution multiturn potentiometers.

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Adtech Model UDB 97 Up-Down Ramp BufferThe Adtech Model UDB 97 Up-Down Ramp Buffer provides an accurate and economical means of supervisory process control. A contact state change or pulse input drives the standard output process signal to ramp up or down and can hold the resulting change.

The Up and Down multiturn ramp rate controls allow independent adjustment of the ramp rate from the specified maximum rate to 100 times slower. The two contact inputs control the direction of the output and the ramp or hold mode respectively.

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