Model DI-5B48-02

Description

The DI-5B48 provides excitation to piezoelectric sensors with built-in microelectronic amplifiers, commonly known as ICP®* or IEPE* or LIVM* sensors. The module provides a constant current excitation to the sensor, then isolates, filters, and amplifies the sensor output, yielding a high-level analog voltage output. The excitation current, signal gain, and filter high-pass and low-pass cutoff frequencies are field-configurable through a set of slide switches.

Six poles of signal filtering in the DI-5B48 module result in greater than 100dB of normal-mode rejection for signal frequencies above the cutoff frequency. One pole of filtering is on the field side of the isolation barrier for anti-aliasing purposes and the remaining five-pole programmable Bessel filter is located on the system side. High-pass filtering is achieved through a second order passive filter, located on the field side. If desired, the output switch can be turned on continuously by simply connecting pin 22, the Read-Enable pin, to I/O Common, pin 19.

The DI-5B48 offers the option of setting the constant current source for sensor excitation to common values of 4mA or 9mA with a compliance voltage of 24VDC. Programmable gains of 1, 10 and 100 are selectable and the module offers a ±5V output. The required supply level is +5VDC, ±5%.

To ensure protection of expensive data acquisition equipment, the DI-5B48 module signal inputs and sensor excitation outputs are protected against accidental connection of voltages up to 240Vrms.

Accessories

Specifications

Input Type:	Accelerometer
Input Range:	±5V (AC peak for AC coupling. For DC coupling input range (AC + DC): 0 to +10V.)
Input Protection:	Continuous: 240Vrms max Transient: ANSI/IEEE C37.90.1
Excitation:	Constant Current: 4mA or 9mA, ±10% (Programmable using slide switches on the bottom of the module.) Compliance Voltage: 24V ±10%
Excitation Protection:	Continuous: 240Vrms max Transient: ANSI/IEEE C37.90.1
Output Range:	±5V
Resistance:	50Ω
Protection:	Continuous Short to Ground
Gain (programmable):	1, 10, 100 (Programmable using slide switches on the bottom of the module.)
CMR (50/60Hz):	100dB
Accuracy:	±0.2% Span (Includes linearity, repeatability and hysteresis)
Linearity:	±0.01% Span
Stability:	Offset: ±25ppm/°C Gain: ±100ppm/°C
Output Noise, Gain=1, BW=20kHz:	200μVrms
Low Pass Filter:	Type: Bessel Programmable: 2.5kHz, 5kHz, 10kHz, 20kHz (Programmable using slide switches on the bottom of the module.)
High Pass Filter:	DC, 0.2Hz, 10Hz (Programmable using slide switches on the bottom of the module.)
CMV (Input to Output):	Continuous: 1500Vrms max Transient: ANSI/IEEE C37.90.1
NMR:	100db per Decade above cutoff frequency
Supply Voltage:	+5VDC ±5%
Current:	140mA (9mA excitation) 100mA (4mA excitation)
Environmental:	Operating Temperature: -40ºC to +85ºC Storage Temperature: -40ºC to +85ºC
Mechanical Dimensions:	2.28" × 2.26" × 0.60" (58mm × 57mm × 15mm)

Compatible Products

Other Products in the Series

None