PCB Piezotronics ICP 483C30 User manual

Model 483C50
ICP® Sensor Signal Conditioner
Installation and Operating Manual
For assistance with the operation of this product,
contact PCB Piezotronics, Inc.
Toll-free: 800-828-8840
24-hour SensorLine: 716-684-0001
Fax: [phone]
E-mail: [email protected]
Web: www.pcb.com

The information contained in this document supersedes all similar information that
may be found elsewhere in this manual.
Total Customer Satisfaction –PCB
Piezotronics guarantees Total Customer
Satisfaction. If, at any time, for any
reason, you are not completely satisfied
with any PCB product, PCB will repair,
replace, or exchange it at no charge.
You may also choose to have your
purchase price refunded in lieu of the
repair, replacement, or exchange of the
product.
Service –Due to the sophisticated
nature of the sensors and associated
instrumentation provided by PCB
Piezotronics, user servicing or repair is
not recommended and, if attempted,
may void the factory warranty. Routine
maintenance, such as the cleaning of
electrical connectors, housings, and
mounting surfaces with solutions and
techniques that will not harm the
physical material of construction, is
acceptable. Caution should be observed
to insure that liquids are not permitted to
migrate into devices that are not
hermetically sealed. Such devices
should only be wiped with a dampened
cloth and never submerged or have
liquids poured upon them.
Repair –In the event that equipment
becomes damaged or ceases to
operate, arrangements should be made
to return the equipment to PCB
Piezotronics for repair. User servicing or
repair is not recommended and, if
attempted, may void the factory
warranty.
Calibration –Routine calibration of
sensors and associated instrumentation
is recommended as this helps build
confidence in measurement accuracy
and acquired data. Equipment
calibration cycles are typically
established by the users own quality
regimen. When in doubt about a
calibration cycle, a good “rule of thumb”
is to recalibrate on an annual basis. It is
also good practice to recalibrate after
exposure to any severe temperature
extreme, shock, load, or other
environmental influence, or prior to any
critical test.
PCB Piezotronics maintains an ISO-
9001 certified metrology laboratory and
offers calibration services, which are
accredited by A2LA to ISO/IEC 17025,
with full traceability to SI through
N.I.S.T. In addition to the normally
supplied calibration, special testing is
also available, such as: sensitivity at
elevated or cryogenic temperatures,
phase response, extended high or low
frequency response, extended range,
leak testing, hydrostatic pressure
testing, and others. For information on
standard recalibration services or
special testing, contact your local PCB
Piezotronics distributor, sales
representative, or factory customer
service representative.
Returning Equipment –Following
these procedures will insure that your
returned materials are handled in the
most expedient manner. Before
Warranty, Service, Repair, and
Return Policies and Instructions

returning any equipment to PCB
Piezotronics, contact your local
distributor, sales representative, or
factory customer service representative
to obtain a Return Warranty, Service,
Repair, and Return Policies and
Instructions Materials Authorization
(RMA) Number. This RMA number
should be clearly marked on the outside
of all package(s) and on the packing
list(s) accompanying the shipment. A
detailed account of the nature of the
problem(s) being experienced with the
equipment should also be included
inside the package(s) containing any
returned materials.
A Purchase Order, included with the
returned materials, will expedite the
turn-around of serviced equipment. It is
recommended to include authorization
on the Purchase Order for PCB to
proceed with any repairs, as long as
they do not exceed 50% of the
replacement cost of the returned
item(s). PCB will provide a price
quotation or replacement
recommendation for any item whose
repair costs would exceed 50% of
replacement cost, or any item that is not
economically feasible to repair. For
routine calibration services, the
Purchase Order should include
authorization to proceed and return at
current pricing, which can be obtained
from a factory customer service
representative.
Warranty –All equipment and repair
services provided by PCB Piezotronics,
Inc. are covered by a limited warranty
against defective material and
workmanship for a period of one year
from date of original purchase. Contact
PCB for a complete statement of our
warranty. Expendable items, such as
batteries and mounting hardware, are
not covered by warranty. Mechanical
damage to equipment due to improper
use is not covered by warranty.
Electronic circuitry failure caused by the
introduction of unregulated or improper
excitation power or electrostatic
discharge is not covered by warranty.
Contact Information –International
customers should direct all inquiries to
their local distributor or sales office. A
complete list of distributors and offices
can be found at www.pcb.com.
Customers within the United States may
contact their local sales representative
or a factory customer service
representative. A complete list of sales
representatives can be found at
www.pcb.com. Toll-free telephone
numbers for a factory customer service
representative, in the division
responsible for this product, can be
found on the title page at the front of this
manual. Our ship to address and
general contact numbers are:
PCB Piezotronics, Inc.
3425 Walden Ave.
Depew, NY14043 USA
Toll-free: [phone]
24-hour SensorLineSM: [phone]
Website: www.pcb.com
E-mail: [email protected]

PCB工业监视和测量设备 - 中国RoHS2公布表
PCB Industrial Monitoring and Measuring Equipment - China RoHS 2 Disclosure Table
部件名称
有害物质
铅(Pb)
汞
(Hg)
镉
(Cd)
六价铬(Cr(VI))
多溴联苯 (PBB)
多溴二苯醚(PBDE)
住房
O
O
O
O
O
O
PCB板
X
O
O
O
O
O
电气连接器
O
O
O
O
O
O
压电晶体
X
O
O
O
O
O
环氧
O
O
O
O
O
O
铁氟龙
O
O
O
O
O
O
电子
O
O
O
O
O
O
厚膜基板
O
O
X
O
O
O
电线
O
O
O
O
O
O
电缆
X
O
O
O
O
O
塑料
O
O
O
O
O
O
焊接
X
O
O
O
O
O
铜合金/黄铜
X
O
O
O
O
O
本表格依据 SJ/T 11364 的规定编制。
O：表示该有害物质在该部件所有均质材料中的含量均在 GB/T 26572 规定的限量要求以下。
X：表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572 规定的限量要求。
铅是欧洲RoHS指令2011/65/ EU附件三和附件四目前由于允许的豁免。
CHINA RoHS COMPLIANCE

DOCUMENT NUMBER: 21354
DOCUMENT REVISION: C
ECN: 45605
Component Name
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Chromium VI
Compounds
(Cr(VI))
Polybrominated
Biphenyls
(PBB)
Polybrominated
Diphenyl
Ethers (PBDE)
Housing
O
O
O
O
O
O
PCB Board
X
O
O
O
O
O
Electrical
Connectors
O
O
O
O
O
O
Piezoelectric
Crystals
X
O
O
O
O
O
Epoxy
O
O
O
O
O
O
Teflon
O
O
O
O
O
O
Electronics
O
O
O
O
O
O
Thick Film
Substrate
O
O
X
O
O
O
Wires
O
O
O
O
O
O
Cables
X
O
O
O
O
O
Plastic
O
O
O
O
O
O
Solder
X
O
O
O
O
O
Copper Alloy/Brass
X
O
O
O
O
O
This table is prepared in accordance with the provisions of SJ/T 11364.
O: Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit
requirement of GB/T 26572.
X: Indicates that said hazardous substance contained in at least one of the homogeneous materials for this part is above
the limit requirement of GB/T 26572.
Lead is present due to allowed exemption in Annex III or Annex IV of the European RoHS Directive 2011/65/EU.

PCB PIEZOTRONICS, INC. 3425 WALDEN AVENUE DEPEW, NY 14043-2495 PHONE [phone] FAX [phone]
®
ICP is a registered trademark of PCB Group, Inc.
Manual # 34896
Rev. A
SIGNAL CONDITIONER
Models 483C30, 483C50, 482M179 and
483M217
GENERAL OPERATION
MANUAL
For powering ICP
®
, and charge sensors, these signal conditioners provide an effective method for
managing large numbers of sensor channels. A simple command set, entered through industry
standard interface, allows the user to generate powerful application-specific programs to automate
system testing.

i
Table of Contents
Table of Contents i
Table of Figures ii
1-0. INTRODUCTION AND SPECIFICATIONS 1
1-1. Introduction: Safety Considerations 1
1-2. System Description, Basic Configuration 2
1-2.1. ICP
®
Input/Output Mode, All Models 2
1-3. Block Diagram 3
1-4. Installation 3
1-4.1. Grounding Techniques 3
1-5. Operation: Standard AC Line 4
1-6. Maintenance and Repair 4
2-0. THEORY OF OPERATION 4
2-1. Sensor Excitation 4
2-2. Input Protection 4
2-3. Input Fault Detection 5
2-4. Input Interface 5
2-5. Gain 5
2-5.1. Programmable Gain 6
2-6. Normalized Output Sensitivity 6
2.7. Overload Detection and Autoscaling 6
2-7.1. Autoscaling 7
2-7.2. Overload 7
2-8. Connector Configuration 7
2-9. Non-Volatile Memory 8
2-10. Transducer Electronic Data Sheet (TEDS) Interface: 8
2-11. Filtering 8
2-11.1 Output Filtering 8
2-11.2 Input Filtering 9
2-11.3 Ordering Filters 9
3-0. COMPUTER INTERFACE PROGRAMMING GUIDE 10
3-1. Introduction 10
3-2. Ethernet Communication 10
3-3. Communication Guidelines 15

MODELS 483C30, 483C50 AND, 482M179 GENERAL OPERATION MANUAL
ii
3-4. Unit Initialization Procedure 15
3-5. Command Summary 15
3-6. Command Format 16
3-7. Multiple Board Models 16
3-8. Commands 17
GAIN 17
SENS 17
FSCI 18
FSCO 18
INPT 18
IEXC 19
OFLT 20
OSCL 20
RTED 21
ALLC 21
RBIA 22
STUS 22
UNIT 22
UNID 23
LEDS 24
RSET 24
AUTR 24
SAVS 25
WTED 25
Communication Responses 26
Table of Figures
Figure 1 Typical Block Diagram..............................................................................3
Figure 2 ICP
®
Sensor Excitation..............................................................................4
Figure 3 Input Fault Window Comparator with LED Indicator...............................5
Figure 4 Input Amplifier Configuration...................................................................5

MODELS 483C30, 483C50 AND, 482M179 GENERAL OPERATION MANUAL
iii
Figure 5 Selectable Gain Amplifier Configuration ...................................................5
Figure 6 Autoscale/Overload Window Comparator .................................................7

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
1
1-0. INTRODUCTION AND SPECIFICATIONS
1-1. Introduction: Safety Considerations
WARNING SYMBOLS AND TERMS
The following symbols and terms may be found on the equipment described in this manual.
This symbol on the unit indicates that the user should refer to the operating instructions located in the manual.
This symbol on the unit indicates that high voltage may be present. Use standard safety precautions to avoid
personal contact with this voltage.
This symbol indicates that the test fixture, Model 483C30, 483C50, 482M179 and 483M217, must be connected to
earth ground via the power cord.
The WARNING heading used in this manual explains dangers that might result in personal injury or death. Always
read the associated information very carefully before performing the indicated procedure.
The Caution heading used in this manual explains hazards that could damage the instrument.
WARNING 1: The power supply/signal conditioner should not be opened by anyone other than qualified service
personnel. This product is intended for service by qualified personnel who recognize shock hazards and are familiar
with the safety precautions required to avoid injury.
WARNING 2: This equipment is designed with user safety in mind; however, the protection provided by the equipment
may be impaired if the equipment is used in a manner not specified by PCB Piezotronics, Inc.
Caution 1: Cables can kill your equipment. High voltage ElectroStatic Discharge (ESD) can damage electrical devices.
Similar to a capacitor, a cable can hold a charge caused by triboelectric transfer, such as that which occurs in the
following:
•Laying on and moving across a rug.
•Any movement through air.
•The action of rolling out a cable.
•Contact to a non-grounded person
The solution for product safety: 1) Connect the cables only with the AC power off. 2) Temporarily “short” the end of
the cable before attaching it to any signal input or output.
Caution 2: ESD considerations should be made prior to performing any internal adjustments on the equipment. Any
piece of electronic equipment is vulnerable to ESD when opened for adjustments. Internal adjustments should therefore
be done ONLY at an ESD-safe work area. Many products have ESD protection, but the level of protection may be
exceeded by extremely high voltage that is typically present in normal situations.

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
2
EQUIPMENT RATINGS
For complete specifications, please refer to the enclosed Specification Sheet. This equipment operates optimally at +32
to +120°F (0 to +50°C), in an environment having <85% relative humidity.
These models require 100 to 240 VAC / 47 to 63 Hz to operate. In turn, they supply 24 VDC 2 to 20 mA, excitation to
connected ICPsensors or in-line charge converters.
1-2. System Description, Basic Configuration
These models are eight channel signal conditioners designed to interface measurement signals to readout or recording
devices. These models also serve to provide excitation power for ICP
®
sensors and in-line charge converters.
The following are features available on all models:
•Incremental gain, x0.1 to x200 in 0.1 increments
•Input fault and overload LED
•Illuminator lights and a power button on the front panel
•Rear panel BNC jack input/output connectors
•Non-volatile memory
•Ethernet interface
•Normalized Output
•Voltage sensor input signal mode
•Capable of reading TEDS
Model 483C50 includes the following features:
•ICP® with variable 2 to 20 mA source current
•Voltage mode
Models 483C30, 482M179 and 483M217 include the following features:
•Selectable Input Signal Modes per channel including:
•ICP® with variable 2 to 20 mA source current
•Isolated ICP® with fixed 4 mA source current
•Charge with selectable 0.1, 1.0, or 10.0 mV/pC sensitivity
•Isolated charge with selectable 0.1, 1.0, or 10.0 mV/pC sensitivity
•Voltage mode
•Fixed 10 kHz low pass fourth-order output filter
•Internal oscillator for 0.1Vpk or 100 pCpk signal at 100 or 1000 Hz
•External calibration input with 1 V/V or 1000 pC/V input gain
The model 482M179 and 483M217 units also include a 9-pin D-Sub female connector that provides all 8 output signals
on one connector.
1-2.1. ICP
®
Input/Output Mode, All Models
These models contain a regulated 24 VDC power supply that provides constant current for up to 8 individual channels.
Both the output and input connections utilize BNC jack connectors and are brought out through the rear panel.

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
3
1-3. Block Diagram
Figure 1 Typical Block Diagram
1-4. Installation
These signal conditioner models comes in a standard 19-inch rack mount enclosure with a 1U (1.75”) height. The
enclosure should be located in such a way as to allow convenient access to the power outlet for disconnect purposes.
Since these models have low power consumption, they can be located in confined environments.
1-4.1. Grounding Techniques
Integrating these models into an application that links the outputs to other test equipment powered by line voltages may
lead to errors or loss of signal-to-noise ratio due to ground loops. The evidence of ground loops is easily seen whenever
the fundamental frequency (50 or 60 Hz) or a multiple of the fundamental frequency is present in the system when the
sensors are “at rest.” In order to maintain the operating specification of noise and reduce the effects of line interference,
proper grounding techniques should be used. The following procedure may be helpful:
1. Make sure the signal ground lines of all equipment are tied together. The signal grounds of the channels are typically
tied together via the case of the input and output BNC connectors. The individual channels of these models, except for
the 483C30, 482M179 and 483M217 when in isolated mode, have their signal ground line tied together internally at the
power supply.
2. Insure that the sensor does not pick up line noise from the body under test. The case of the sensor should be isolated
from the body under (ground) using an isolation pad. The isolation pad breaks the loop formed by the signal path of the
sensor to the signal conditioner and the return (ground) from the signal conditioner back to the sensor.
3. Make sure that all equipment signal grounds of the test system are tied to the Earth ground at a single point and the
connections linking the equipment ground are made using a wire that can provide a very low impedance connection.
The models 483C30, 482M179 and 483M217 have the additional key feature of input ground isolation. This is
available in ICP® and charge input modes and is available on a per channel basis. For any channel showing potential
ground loop noise, that channel can be changed to an isolated mode, which isolates that channels input ground from all

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
4
other grounds in the signal conditioner. This removes one of the grounds in the measurement channel and in most cases
it will eliminate ground loops on that channel.
1-5. Operation: Standard AC Line
Plug the line cord into a 120V/60 Hz or 230V/50 Hz power source and toggle the “ON/OFF” switch.
CAUTION: Refer to the rear panel for proper input voltage and currents.
1-6. Maintenance and Repair
It is not recommended that the customer attempt repair of these models in the field. Should trouble occur,
contact the factory for assistance. If the unit becomes dusty and dirty, it may be wiped off with a soft cloth.
2-0. THEORY OF OPERATION
2-1. Sensor Excitation
ICP
®
refers to a low output impedance voltage mode sensor combining an integrated circuit and a piezoelectric sensing
element in a single housing to provide a voltage output. This sensor is powered by a +24 VDC power supply having a
constant current, variable from 2 to 20 mA.
Sensor excitation occurs as the constant current of all channels are set. These models allow the constant current to be
adjusted between 2 and 20 mA, when not in isolation mode, to provide the required excitation for most applications.
Special situations, such as driving extra-long cables (more than 1000 ft) with high frequency or fast rise time pulses, may
require increasing the drive current to 12 mA or higher.
Figure 2 ICP
®
Sensor Excitation
When driving fast rise time pulses over long lines, system performances can be optimized by “tuning” the drive current
to the line; i.e. by finding the best current setting for the particular test of physical parameters. To determine the optimal
current setting, experiment with your particular test set up. To insure optimal accuracy in constant-current adjustment,
make sure all channels have sensors or simulated loads, similar to the one provided by the Model 401B04 Sensor
Simulator, consisting of a voltage amplifier similar to those found in ICPsensors.
2-2. Input Protection
The input section has protection to limit the amplitude of the incoming signal to within +24 volts to ground. Maximum
allowable input voltage without distortion is ±10 volts, relative to the sensor bias voltage.

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
5
2-3. Input Fault Detection
These models monitor two input fault conditions; “short” and “open,” which indicate problems with sensor input and is
displayed through the front panel LEDs. Either case implies that the sensor is NOT functioning properly. An input is
shorted when it has a ground path for the sensor excitation and open when the sensor fails to draw the excitation.
Two voltage comparators consist of a window comparator that has two reference voltages (V
ref
) representing thresholds
for “short” and “open.” When the sensor’s bias voltage (V
bias
) exceeds the comparator range, the front panel input fault
LED lights.
NOTE: Red LED implies input fault.
Figure 3 Input Fault Window Comparator with LED Indicator
2-4. Input Interface
The input signal conditioning for each channel provides a unity gain buffer with high-input impedance amplifiers. With
the AC coupled option it also eliminates the DC bias from the input signal with a 10-second time constant.
Figure 4 Input Amplifier Configuration
2-5. Gain
The Programmable Gain Amplification (PGA) block consists of a decimal gain amplifier. See Figure 5.
Figure 5 Selectable Gain Amplifier Configuration

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
6
2-5.1. Programmable Gain
Adjustable incremental gain (from 0.1 to 200) is standard in these models. The steps in the incremental gain are 0.1.
This is particularly useful in the standardization of groups of sensors. Consider the following example, wherein the user
desires to normalize sensitivities to 1 V/unit for each channel.
Channel Sensor Sensitivity Gain Setting of Unit Actual Gain Needed
1
st
10.10
mV
/
unit
99.00 99.01
2
nd
101.32
mV
/
unit
9.9 9.869
3
rd
22.30
mV
/
unit
44.8 44.84
The gain is set via the computer interface command set (See the command strings in Section 3-0 in the Computer
Interface Programming Guide.)
2-6. Normalized Output Sensitivity
The definition of normalized output sensitivity is the calculation of the individual channel’s gain, depending on the
sensitivity of the sensor attached and the desired output sensitivity. This is simply a function of the desired output
sensitivity (in Volts/ unit) divided by the sensor’s sensitivity.
Gain =
1 Volt
/
Sensitivity (mV/unit)
Additionally, a feature to improve flexibility allows changing the output level to a value of 5 Volts/ unit instead of
normalized 1 Volt/ unit. Some users request the ability calculate the gain using a known input signal along with the
sensor sensitivity, and desired output level. The result of the request impacts the formula:
Gain =
1 Volt/
/
[Sensitivity (mV/unit) * Full Scale Input (units)]
Adding some simple error checking to insure the limits of the sensor and gain limits of the signal conditioner are not
exceeded completes the normalization process.
Gain
normalized
=
FSOT (V)
/
SENS * FSIN
Additional Considerations:
The storage of individual channel gains is stored in non-volatile memory locations. The new variables for each channel’s
sensitivity, Full Scale Output level, and Full Scale Input are stored in non-volatile memory locations when SAVS
command is sent to the unit.
The error checking should provide a flag if the desired normalized output level is not feasible due to gain limitations.
The gain required may be too large given the sensor sensitivity defined, or too small which implies the sensor will not be
capable measure the expected value. The typical sensor will output a signal up to ±5 Volts. The maximum swing may be
used in the error checking.
The 483C30 and 482M179 models have the capability to provide signal conditioning for charge mode sensors in
addition to the standard ICPtype. The sensitivity (mV/ pC) of the charge conversion will allow charge mode sensors
(pC/ unit) to be normalized.
2.7. Overload Detection and Autoscaling

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
7
2-7.1. Autoscaling
To avoid overload, these signal conditioners feature autoscaling for gain adjustment. It first sets maximum gain on all
channels, then decreases the gain setting of any channel on which an overload has occurred. The gain autoscale
continues until there is no overload with respect to the preset overload threshold level (standard ±10 volts) and sensed
signal of the channel. Final gain and overload status interrogation is possible through the command set. The correct
procedure for using the autoscale feature is as follows:
1. Excite the structure under test.
2. Enable autoscale (Autoscale on).
3. Wait several seconds, until the unit is stabilized.
4. Disable autoscale (Autoscale off).
5. Read the gains of all channels.
6. Begin test run.
2-7.2. Overload
The overload feature uses the same window comparator principle previously discussed. The +V
ref
is equal to the default
overload value of ±10 volts. When the input voltage (Vsignal of Figure 6) to the window comparator exceeds the
reference voltage limits, overload has occurred, and the comparator’s output, which is normally “high,” becomes “low.”
This “low” state illuminates the overload LED and triggers the latch of overload detection circuitry. During regular
measuring time, the latch holds the occurrence of overloads until the user reads its status through the computer interface.
Figure 6 Autoscale/Overload Window Comparator
2-8. Connector Configuration
All of these models have eight BNC jack output connectors, located on the rear panel, which are used regardless of the
input mode being used. The rear panel also includes eight BNC jack input connectors that are used for all input modes.
For the models 483C30, 482M179 and 483M217, there is an additional 10-32 jack connector, also located on the rear
panel, which are used for external calibration input signals.
The 482M179 and 483M217 units also have a 9-pin D-sub connector for output signals (Pins 1-8 correspond to channel
1-8 output signals)

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
8
2-9. Non-Volatile Memory
This feature provides a mechanism to save and restore a programmed configuration. The programmable settings are
saved when the unit receives a SAVS command and restored when the unit powers up. The unit’s non-volatile memory
may be reset to the factory default settings by using the RSET Command.
2-10. Transducer Electronic Data Sheet (TEDS) Interface:
TEDS sensors attach to the input connectors the same way a traditional ICPsensor is attached to the signal
conditioner. The TEDS interface requires the Ethernet computer interface, and the input mode option. The digital
control and input mode features automatically perform the TEDS read or write function. After the communication with
the TEDS sensor is complete the input mode returns to the input mode (charge or ICP) prior to the communication.
The current TEDS function will perform a read of the “raw” TEDS data and return the 32 bytes of TEDS sensor
EEPROM data and the 8 byte Application register contents, if it was programmed, and returns the data in an ASCII Hex
representation.
2-11. Filtering
Most Model 482C’s can be ordered with optional Input and/or Output Filters which may be enabled and disabled for
each individual channel. The standard options are described below.
2-11.1 Output Filtering
The Model 482C can be ordered with low pass or high pass Output Filters installed in any or all channels for the
removal of unwanted noise. Output filters are located at the end of the signal path, after any gain has been applied. The
available Output Filter modules are fourth-order Butterworth low pass (-24 dB/octave) filters. High pass filters are
available upon request. The Output Filters are factory-installable only. Typical cutoff frequencies include:
Output Filter
Option Number
Filter Type Cutoff Frequency
(-3 dB)
00 Low Pass No Filter Installed
01 Low Pass 100 Hz
02 Low Pass 200 Hz
03 Low Pass 500 Hz
04 Low Pass 1 kHz
05 Low Pass 2 kHz
06 Low Pass 5 kHz
07 Low Pass 10 kHz
08 Low Pass 20 kHz
09 Low Pass 50 kHz
10 Low Pass 100 kHz
11 Low Pass 300 Hz
12 Low Pass 20 Hz
13 Low Pass 33 Hz
14 Low Pass 1650 Hz
The user may also define a specific cutoff frequency for the Output Filters that satisfies a specific need. Contact the
factory regarding individual requirements and model ordering code.

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
9
2-11.2 Input Filtering
The Model 482C can also be ordered with low pass or high pass Input Filters installed. Input filters are located at the
front end of the signal path, before any gain has been applied. This location may be advantageous for applications
where gain is used and there is significant signal content outside the passband which could overload the signal
conditioner. Input Filters are also factory-installable only. These Input Filters are the 477 Series of plug-in filters. The
standard models are second-order Butterworth low pass (-12 dB/octave) filters. Typical cutoff frequencies include:
Input Filter
Model
Filter Type Cutoff Frequency
(-3 dB)
477A01 Low Pass 100 Hz
477A02 Low Pass 200 Hz
477A03 Low Pass 500 Hz
477A04 Low Pass 1 kHz
477A05 Low Pass 2 kHz
477A06 Low Pass 5 kHz
477A07 Low Pass 10 kHz
477A08 Low Pass 20 kHz
477A09 Low Pass 50 kHz
477A10 Low Pass 100 kHz
477M03 Low Pass 50 Hz
The user may also define a specific cutoff frequency for the Input Filters that satisfies a specific need. Contact the
factory regarding individual requirements and model ordering code.
2-11.3 Ordering Filters
The Model 483C can be ordered with either or both Input and Output Filters using one of the model formats as shown
below. Contact the factory for pricing and delivery information. Please note that some 483C models already include
filtering, for example the 483C30 model includes a 10 kHz Output Filter (option 07). Models 483C40 and 483C41
include selectable output filters (0.1, 0.3, 1, 3, 10, 30 kHz [-3dB]).
483Cxx/yy
483Cxx/477Azz
483Cxx/yy/477Azz
Where:
xx is the specific 483C model that is being modified with filters.
yy is the Output Filter Option Number from the table above.
zz is the Input Filter Model from the table above, one supplied per channel.
Model examples include:
Model
Output Filters (-3 dB) Input Filters (-3 dB)
483C30 10 kHz
1
None
483C40 Selectable
1
None
483C41 Selectable
1
None
483C30/00/477A05 None 2 kHz
483C30/477M11 10 kHz
1
2 Hz
483C50/477A10 None 100 kHz
1
Supplied standard with base model

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
10
3-0. COMPUTER INTERFACE PROGRAMMING GUIDE
3-1. Introduction
Individual commands are subject to feature availability on the particular unit. The Ethernet Interface enables these
models to be fully controlled by a computer or handheld controller. With this interface, the unit is able to become part
of a fully automated system.
3-2. Ethernet Communication
These signal conditioners are equipped with the Ethernet Interface so the unit’s IP address must be set up before any
remote communication can commence.
The steps to set the IP address are as follow:
•Connect, either directly with a crossover CAT5 cable or through a hub, to a single unit. This unit is presumed to
have a Unit ID of 1,
•Set the IP address using an independent utility from Lantronix called DeviceInstaller
TM
. This utility is provided
on the PCB MCSC application software installer CD and available for download at the Lantronix website:
http://www.lantronix.com/device-networking/utilities-tools/device-installer.html
Once installed it can be accessed from the MCSC software from the ‘Help | Configure Ethernet Devices’ menu
item.
•After the DeviceInstaller
TM
application is installed, run it and the following screen will appear. Click on the
Search icon and the program will search for the Ethernet device internal to the signal conditioner unit. When
found, as shown below, details about the device show in the list. You can verify it is the correct unit by
comparing the Hardware (MAC) Address displayed to the one listed on the side of the signal conditioner unit.
•Selecting an item from the list, shown below, highlights the item in the list and enables more icons.
•Select Assign IP and the following screen will appear. Select whether you want to assign a static IP address
that is appropriate for your network or have it assigned from a network server. Subsequent steps are self-
explanatory.

MODELS 483C30, 483C50, 482M179 AND 483M217 GENERAL OPERATION MANUAL
11
•Now you can use the assigned IP address to address the unit.
Important Note: The communication protocol requires a unit id as part of the command header. The unit id is
not the IP address. To send commands to the unit Via Ethernet you must address the TCP-IP packets with the
proper IP address and ensure the packet payload contains the correct Unit Id in the command header.
The XPort device should be configured properly for communication with the signal conditioner. If problems
occur please check the communication parameters of the device as shown below.
Navigate to the actual device as shown in the left panel above and then click on the ‘Web Configuration’ tab and clock
on the ‘Go’ button. This will cause the following screen to appear, just select ‘OK’. There are no login parameters
defined.