M O D E L
4 4 3 B 0 2
D U A L - M O D E
A M P L I F I E R
Dual-Mode
Amplifier
For Conditioning Charge and ICP®® Sensors
Long Discharge Time Constant (>100,000 seconds)
Digitally Set Sensitivity Normalization
0.0001 to 10 V/pC Charge Conversion
Selectable Low and High Pass Filtering
Automatic Drift Nulling
Ultra Low Noise Floor
The Model 443B02 Dual-Mode Amplifier is a multifunction signal conditioner for piezoelectric charge mode
and ICP® sensors. In addition, it accepts other dynamic
voltage signal inputs. The long discharge time constant
selection permits the unit to be especially well suited for
static calibration of pressure and force sensors and for
accurate measurement of quasi-static events lasting up to
several seconds in duration. A drift-nulling feature
automatically minimizes drift, resulting in improved
repeatability and measurement accuracy. A user friendly,
menu-driven display with keypad, or RS-232 serial
communication, controls all set-up parameters. Logical
operation adjusts input sensor sensitivity, gain, and charge
conversion with four-digit accuracy. Additional features of
this microprocessor-based unit include: ultra low noise
floor, sensor fault detection, sensor and amplifier overload
detection, remote zero reset, built-in calibration reference
signal, and selectable low and high pass filtering.
M O D E L
4 4 3 B 0 2
D U A L - M O D E
A M P L I F I E R
Specifications
Performance
Channels
1
Input Sensor Type (selectable)
ICP®, charge, voltage, TEDS
Input Sensitivity Adjustment
0.001 to 9999 (pC or mV per unit)
Excitation Supplied (ICP® mode)
24 VDC @ 0 to 20 mA
Voltage Gain (ICP® mode)
0.1 to 1000
Charge Converter (charge mode)
0.1 to 10,000 mV/pC
Charge Input Limit
100,000 pC
Accuracy
±1%
Output Range
±10 V
Drift1
<0.03 pC/sec
Discharge Time Constant (selectable)
0.18, 1.8, 10, 100, 1000, >100k sec
Low Frequency Response (-10%) (selectable)
2, 0.2, 0.03, 0.003, ~0 Hz
High Frequency Response (-10%) (selectable)
100, 1k, 3k, 10k, 100k, >200k Hz
Integration (selectable)
Single or Double
Low Freq. Resp. (single or double integr., -10%) 1, 10 Hz (selectable)
Broadband Noise (ICP® mode)2
(2 Hz to 22.4 kHz)
< 3 µV (<-110.5 dB)
Broadband Noise (charge mode)3
(2 Hz to 22.4 kHz)
< 5 fC
Serial Interface
RS-232 / RS-485
Power Required4
100 to 240 VAC, 50 to 60 Hz
Temperature Range
32 to +120 ºF (0 to +50 ºC)
Model 443B102 Dual-Mode Amplifier
Module Front Panel
Model 443B02
Dual-Mode Amplifier
Physical
Input / Output Connectors
BNC, 10-325 / BNC
External (remote) Zero Reset Connector
SMB
Dimensions (L x W x H)
10.2 x 6.06 x 6.2 in
(259 x 154 x 158 mm)
Weight
6.55 lb (2.97 kg)
Notes:
1 Long discharge time constant mode
2 Measured at gain of 1000 (60 dB), input referred, 0.2 Hz low frequency setting
3 Measured with charge conversion of 10 V/pC (80 dB) with a 1 nF source capacitance, input
referred, 0.2 Hz low frequency setting
4 Universal input - automatically senses and adjusts to accommodate 100 to 240 VAC, 50 to
60 Hz line power sources
5 Panel connector is BNC. 10-32 achieved with supplied adaptor
Supplied Accessories:
Model 070A02 BNC Plug to 10-32 Jack Adaptor
The Model 443B02 Dual-Mode Amplifier consists of:
Model 441A33 Three-Slot Chassis
Model 441A101 AC Line Power Supply
Model 443B102 Dual-Mode Amplifier Module
These components are fully compatible with the PCB Series 440 Modular Sensor Signal
Conditioning System. See drawing at right. For additional information, contact PCB.
This product is CE marked in accordance with the following European Directives:
· EN 55011: 1993 Emissions
· EN 55022: 1994 Emissions
· EN 61000-3-2: 1995 Emissions
· EN 61000-3-3:1994 Emissions
· EN 50082-2: 1995 Immunity
· EN 50082-2: 1995 Immunity
· EN 61010-1: 1995 Safety
Model 441A33
Three-Slot Chassis
Model 443B102
Dual-Mode
Amplifier Module
Model 441A101
AC Power Supply
The Electronics Division of PCB® Piezotronics, Inc. specializes
in the development, application, and support of signal
conditioners, cables, and accessories for a wide variety of
sensor interfacing requirements. This product focus, coupled
with the strengths and resources of PCB, permits the
Electronics Division to offer timely response to client’s needs,
exceptional customer service, 24-hour technical assistance and a
Total Customer Satisfaction guarantee.
3425 Walden Avenue, Depew, NY 14043-2495 USA Electronics Division toll-free 800-828-8840
24-hour SensorLineSM 716-684-0001 FAX 716-684-0987 E-mail electronics@pcb.com Website www.pcb.com
ISO 9001 CERTIFIED
A2LA ACCREDITED
© 2002 PCB Group, Inc. In the interest of constant product improvement, specifications are subject to change without notice. PCB and ICP are registered trademarks of PCB Group, Inc.
SensorLine is a service mark of PCB Group, Inc. All other trademarks are properties of their respective owners.
ELE-443B02-0302
Printed in U.S.A.