APL 8016 DAU Detailed Specification

General Features

• 8 channels

• Each channel can be used as either analogue or frequency input

• Up to 75 Hz sampling rate

• Synchronised sampling on all channels

• Separate excitation circuit for each channel

• Fully compatible with T-MON software

Input Specification

• 8 channels with simultaneous sampling

• Each channel can be used as either frequency or analogue input

• IP66 circular connectors (option of screw or sprung terminals)

• Differential inputs

• >5000 MΩ input impedance

• 50 V continuous maximum safe input

• 100Ω internal 0.1% precision sense resistor for current loop signals

Analogue Channel Specification

• Programmable gain for each channel up to 8000 (calibrated for gains up to 1000)

• 16 gain settings from product of [ 1 2 4 8 ] and [ 1 10 100 1000 ]

• 0.1% of full scale accuracy

• ±5 V range programmable offset for each channel

• 3 mV resolution

• 0.1% of full scale accuracy

• Temperature drift 0.2 mV/°C

• Programmable anti-aliasing filter

• 5 to 50 Hz range, set collectively for all channels

• 5th order Bessel filter

• Amplifier temperature drift

• 30 ppm/°C of gain (k=1), -100 ppm/°C of gain (k=1000)

• 0.01 mV/°C offset (k=1), 0.6 mV/°C offset (k=1000, at output)

• Better than 0.1 % linearity

• Better than -90 dB common mode rejection ratio

• Better than -100 dB cross talk between any channel

• <0.01% rms of full scale noise level (gain1000)

Analogue to Digital Converter

• 16 bit resolution

• ±10 V range. Full dynamic range available for gains up to 1000

• Sample and hold for each channel

Frequency Inputs

• Maximum frequency 2 kHz

• 5 to 36 V input pulses

• Schmidt trigger. Max On Voltage = 4.2V, Min Off Voltage =0.9V

• Accuracy better than 0.05 %

• Full scale range specified by user (1 to 2000 Hz)

• Resolution 15 bit over user specified range

• Transient protection on all connections

• -10 to 50 °C temperature operating range

• Temperature stability 10 ppm

Excitation Supply

• Programmable regulated voltage for each channel from 2.5 to 10 V, up to 55 mA

• ±0.1 % accuracy

• 3 mV resolution

• Excitation Temperature Drift 0.2 mV/°C

• 12 V unregulated mode, up to 55 mA per channel

• Short circuit protection, maximum current 80 mA per channel

• 24V unregulated supply available on connector (fused at 0.5 A for all channels)

Computer Interface

• RS232 or RS422 at 19,200 Baud

• Half duplex

• Synch pulse (if used)

Modes of Operation

• Sample from external pulse

• Sample from byte command

• Sample from internal clock

Configuration

• All settings programmable via serial interface

• Protocol provided

• All settings are retained after power loss

• Can be used as rotor speed and position unit with change of EPROM

Miscellaneous

• Internal temperature and voltage checks

• Self check at power up

• LED indicators for Power, Transmit, Receive and Synch Pulse

Power Requirements

• Input voltage range 18-36V DC

• Maximum VA (excitation circuits not used) 13 VA

• Maximum VA (all excitation circuits at full load) 17.5 VA

• Fully isolated internal supplies

• Self resetting fuse protection

• Reverse polarity protection

Physical & Environmental

• 270 mm long, 130 mm wide, 65 mm high (excluding connectors)

• 3.4 kg weight

• IP66 enclosure