Liquid level Test Module Deluxe

Liquid level Test Module, to teach the use and applications of level sensors and their measurement systems. This module teaches techniques to measure and control the liquid level in a tank.

ATENG 12368 — Liquid level Test Module

• Voltage to frequency (V/F) converter:
• Transfer ratio: 1 kHz/V.
  This unit is common for the different test modules type “ATENG 12356”,
• Maximum input frequency: 10 kHz.
  and can work with one or several modules.
• No linearity: 0.024 %.
  All elements are included in a metallic box.
• Other circuits:
• Signal conditioning circuits:
  Full-wave rectifier.
• Amplifiers:
• 40 kHz oscillator:
• DC amplifiers:
• Output frequency: 41093 Hz.
• Three amplifiers.
• Output amplitude: 5 Vpp.
• Input range: +/-12 VDC.
• Alarm oscillator:
• Input impedance: 100 KΩ.
• Oscillator frequency: 700 Hz.
• Adjustable gain: 1, 10,100 for the “Amplifier 1“ and
• Switch turn off voltage: 2.3 V.
  “Amplifier 2“.
• Electronic switch:
• Fixed gain: 100 for “x100 Amp”.
• Input voltage: 12 V max.
• AC amplifier:
• Switch voltage: 2.1 V.
• Input range: 12 VAC.
• Output current: 500 mA max.
• Adjustable gain: 10, 100,1000.
• Control circuits:
• Bandwidth: 10 - 16000 Hz.
• PID:
• Power amplifier:
  Process control applications.
• Input range: 12 V max.
  Independent PID parameters adjustment (Proportional,
• Output current: 1.5 A max.
  Integrative and Derivative ).
• Output power: 9 W max.
• Industrial controller:
• Current amplifier:
• Input: DC voltage, RTD sensor or thermocouple.
• Gain: 10,000.
• Output 1: Relay.
• Output current: 1 A max.
• Alarm output: Relay.
• Buffers:
• Relay:
• Two buffers.
  Double relay.
• Input voltage: 12 V max.
  NO and NC terminal.
• Input impedance: 100 KΩ.
• 12 VDC coil excitation.
• Inverting amplifier:
• DC dimmer:
• Input voltage: 12 V max.
  Light dimmer or DC motor speed controller applications.
• Input impedance: 100 KΩ.
  PWM generator.
• Gain: -1.
  Frequency and duty cycle adjustable.
• Differential amplifier:
• Power elements:
• Input voltage: 12 V max.
• Power supply:
• Inputs impedance: 100 KΩ (Input A) and 200 KΩ (Input B).
• AC voltage range: 0 – 30 VAC.
• A (Differential gain): 1.0.
• d DC voltage range: 0 –15 VDC.
• A (Common mode gain): 0.02 max.
• c Output current: 4 A max.
• Instrumentation amplifier:
• DC Source:
• Input voltage: 12V max.
  Two output for each voltage.
• Inputs impedance: 100 KΩ.
• DC voltages:+5 VDC, -5 VDC,+12 VDC, -12 VDC, 0 to 12 Var.
• A (Differential gain): 1.0.
• d Output current: 500 mA max.
• A (Common mode gain): 0.006 max.
• c • Wave Generator:
• Summing amplifier:
  Sine, square, triangular and sawtooth waveforms.
• Input voltage: 12 V max.
• Frequency range: 100 to 10000 Hz.
• Three inputs.
• Amplitude range: Adjustable +/- 10V.
• Gain: 1.
• Potentiometers:
• Comparators:
  Four potentiometers.
  Schmitt trigger.
• Impedance values: 0-1 KΩ, 0-5 KΩ, 0-10 KΩ and 0-20 KΩ.
• Filters:
• Power dissipation: 1 W max.
• 40kHz filter: Pass-band filter at 40 kHz.
• Measuring elements:
• Low-pass filter: selectable cut-off frequencies at 15 Hz,
• L.E.D. bargraph display:
  1.44 Hz, 0.14 Hz.
• Input range: 0-5 V.
• Integrator:
• Counter/Timer:
• Selectable time constants: 100 ms, 1 s, 10 s.
  Temporization applications.
• Differentiator:
  Counting applications.
• Selectable time constants: 10 ms,100 ms, 1 s.
• Moving coil meter.
• “Sample/Hold” circuit:
• Analog inputs and outputs:
• Time constant: 1 ms.
• Two analog outputs:
• Converters circuits:
• Output voltage range: -10 V to +10 V.
• Voltage to current (V/I) converter:
• Four analog inputs:
• Output current: ±20 mA max.
• Input voltage range: -10 V to +10 V.
• Transfer ratio: 10 mA/V.
• Computer Control System (SCADA):
• Current to voltage (I/V) converter:
• Control Interface, integrated in the box of the base unit (ATENG 12358).
• Output voltage: ±2 V (6 V max.).
• Data acquisition board to be installed in a computer slot.
• Transfer ratio: 0.1 V/mA.
• Computer Control Software.
• Frequency to voltage (F/V) converter:
  Cables and Accessories, for normal operation.
• Transfer ratio: 1 V/kHz. Manuals: It is supplied with the following: Required Services,
• Maximum input frequency: 10 kHz. Assembly and Installation, Interface and Software,
• No linearity: 0.024 %. Starting-up, Safety, Maintenance & Practices