Fluke Biomedical MPS450 Operators User manual

MPS450
Multiparameter Simulator
Service Manual
PN 2243361
February 2005
2005 Fluke Corporation, All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

MPS450 SERVICE MANUAL NOTICES
ii
Notices
Fluke Biomedical
A Division of Fluke
6920 Seaway Blvd.
Everett, WA 98203
USA
Customer Service and Sales
USA and Canada: 800.648.7952
Outside the USA: 775.883.3400
Sales Fax: [phone]
Sales E-Mail: [email protected]
Service: 888.993.5853
Service Fax: [phone]
Internet: http://www.flukebiomedical.com
For additional sales or service information, contact your local Fluke Biomedical Distributor or Fluke Electronics office.
References in this manual to Bio-Tek International, Inc. and DNI Nevada, refer to companies that are now owned by Fluke
Biomedical.
All Rights Reserved
Copyright 2005, Fluke Biomedical, a division of Fluke. No part of this publication may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language without the written permission of Fluke Biomedical.
Copyright Release
Fluke Biomedical agrees to a limited copyright release that allows you to reproduce manuals and other printed materials for use in service
training programs and other technical publications. If you would like other reproductions or distributions, submit a written request to Fluke
Biomedical.
Unpacking and Inspection
Follow standard receiving practices upon receipt of the instrument. Check the shipping carton for damage. If damage is found, stop
unpacking the instrument. Notify the carrier and ask for an agent to be present while the instrument is unpacked. There are no special
unpacking instructions, but be careful not to damage the instrument when unpacking it. Inspect the instrument for physical damage such as
bent or broken parts, dents, or scratches.
Claims
Our routine method of shipment is via common carrier, FOB origin. Upon delivery, if physical damage is found, retain all packing materials
in their original condition and contact the carrier immediately to file a claim. If the instrument is delivered in good physical condition but does
not operate within specifications, or if there are any other problems not caused by shipping damage, please contact Fluke Biomedical or your
local sales representative.
Standard Terms and Conditions
Refunds & Credits
Please note that only serialized products and their accessory items (i.e., products and items bearing a distinct serial number tag) are
eligible for partial refund and/or credit. Nonserialized parts and accessory items (e.g., cables, carrying cases, auxiliary modules,
etc.) are not eligible for return or refund. Only products returned within 90 days from the date of original purchase are eligible for
refund/credit. In order to receive a partial refund/credit of a product purchase price on a serialized product, the product must not have been
damaged by the customer or by the carrier chosen by the customer to return the goods, and the product must be returned complete
(meaning with all manuals, cables, accessories, etc.) and in “as new” and resalable condition. Products not returned within 90 days of
purchase, or products which are not in “as new” and resalable condition, are not eligible for credit return and will be returned to the
customer. The Return Procedure (see below) must be followed to assure prompt refund/credit.
Restocking Charges
Products returned within 30 days of original purchase are subject to a minimum restocking fee of 15 %. Products returned in
excess of 30 days after purchase, but prior to 90 days, are subject to a minimum restocking fee of 20 %. Additional charges for
damage and/or missing parts and accessories will be applied to all returns.
Return Procedure
All items being returned (including all warranty-claim shipments) must be sent freight-prepaid to our factory location. When you return an
instrument to Fluke Biomedical, we recommend using United Parcel Service, Federal Express, or Air Parcel Post. We also recommend that
you insure your shipment for its actual replacement cost. Fluke Biomedical will not be responsible for lost shipments or instruments that are
received in damaged condition due to improper packaging or handling.
Use the original carton and packaging material for shipment. If they are not available, we recommend the following guide for repackaging:
Use a double–walled carton of sufficient strength for the weight being shipped.
Use heavy paper or cardboard to protect all instrument surfaces. Use nonabrasive material around all projecting parts.
Use at least four inches of tightly packed, industry-approved, shock-absorbent material around the instrument.

MPS450 SERVICE MANUAL NOTICES
iii
Returns for partial refund/credit:
Every product returned for refund/credit must be accompanied by a Return Material Authorization (RMA) number, obtained from our
Customer Service Department:
Customer Service
Fluke Biomedical
800-648-7592 (domestic) or 775-883-3400.
Returns for service/repair/calibration:
All returns for calibration and service repair require a Return Material Authorization (RMA) number. This number will be issued
when you contact Fluke Customer Service to schedule your service. To schedule your next calibration or repair, call toll free 1-
888-99F-LUKE (1-888-993-5853).
To request an RMA outside the US, email: [e-mail].
Ship the instrument, freight-prepaid and fully insured, along with the applicable form, to the following address:
Fluke Biomedical
1420 – 75th Street SW
Everett, WA 98203
Certification
This instrument was thoroughly tested and inspected. It was found to meet Fluke Biomedical manufacturing specifications when it was
shipped from the factory. Calibration measurements are traceable to the National Institute of Standards and Technology (NIST). Devices for
which there are no NIST calibration standards are measured against in-house performance standards using accepted test procedures.
Warranty
Warranty and Product Support
Fluke Biomedical warrants this instrument against defects in materials and workmanship for one full year from the date of original purchase.
During the warranty period, we will repair or, at our option, replace at no charge a product that proves to be defective, provided you return
the product, shipping prepaid, to Fluke Biomedical. This warranty does not apply if the product has been damaged by accident or misuse or
as the result of service or modification by other than Fluke Biomedical. IN NO EVENT SHALL FLUKE BIOMEDICAL BE LIABLE
FOR CONSEQUENTIAL DAMAGES.
Only serialized products and their accessory items (those products and items bearing a distinct serial number tag) are covered under this one–
year warranty. PHYSICAL DAMAGE CAUSED BY MISUSE OR PHYSICAL ABUSE IS NOT COVERED UNDER THE
WARRANTY. Items such as cables and nonserialized modules are not covered under this warranty.
Recalibration of instruments is not covered under the warranty.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state, province to province, or
country to country. This warranty is limited to repairing the instrument to Fluke Biomedical’s specifications.
Warranty Disclaimer
Should you elect to have your instrument serviced and/or calibrated by someone other than Fluke Biomedical, please be advised that the
original warranty covering your product becomes void when the tamper-resistant Quality Seal is removed or broken without proper factory
authorization. We strongly recommend, therefore, that you send your instrument to Fluke Biomedical for factory service and calibration,
especially during the original warranty period.
In all cases, breaking the tamper-resistant Quality Seal should be avoided at all cost, as this seal is the key to your original instrument warranty.
In the event that the seal must be broken to gain internal access to the instrument (e.g., in the case of a customer-installed firmware upgrade),
you must first contact Fluke Biomedical’s Service Department at 775-883-3400. You will be required to provide the serial number for your
instrument as well as a valid reason for breaking the Quality Seal. You should break this seal only after you have received factory
authorization. Do not break the Quality Seal before you have contacted us. Following these steps will help ensure that you will retain the
original warranty on your instrument without interruption.
WARNING
Unauthorized user modifications or application beyond the published specifications may result in electrical shock hazards or improper
operation. Fluke Biomedical will not be responsible for any injuries sustained due to unauthorized equipment modifications.
Restrictions and Liabilities
Information in this document is subject to change and does not represent a commitment by Fluke Biomedical. Changes made to
the information in this document will be incorporated in new editions of the publication. No responsibility is assumed by Fluke
Biomedical for the use or reliability of software or equipment that is not supplied by Fluke Biomedical, or by its affiliated dealers.
Manufacturing Location
Fluke Biomedical
6920 Seaway Blvd.
Everett, WA 98203
775-883-3400
800-648-7952

MPS450 SERVICE MANUAL SAFETY CONSIDERATIONS
iv
Safety Considerations
Authorized service personnel should service Fluke Biomedical's MPS450Multiparameter Simulator
(hereafter referred to as the MPS450). For safety reasons, although the power output from the MPS450 is
not potentially dangerous, only an experienced technician should open the unit to access the inner
electronics.
The following warning and informational symbols may be found on the MPS450:
Symbol Description
Direct Current
Caution
(Refer to accompanying documentation.)
ON/OFF
(Toggle for power connection/disconnection for
operation.)
Hazard Warnings
⇒Warning! Internal Voltage. Always turn OFF the MPS450 and unplug the battery
eliminator before replacing the batteries or cleaning the outer surface.
⇒Warning! Liquids. Avoid spilling liquids on the instrument; fluid seepage into internal
components creates corrosion and a potential shock hazard. Do not operate the
instrument if internal components are exposed to fluid.
Precautions
⇒Caution: Environmental Conditions. Do not expose the instrument to temperature
extremes. Ambient operating temperatures should remain between 10 to 40 °C. Storage
temperatures should remain between -25 to 50 °C. System performance may be
adversely affected if temperatures fluctuate above or below these ranges, or if ambient
humidity exceeds the maximum of 80 %.
⇒Caution: Do NOT Immerse. Clean only with a damp, lint-free cloth. Use a mild
detergent and wipe down gently.

MPS450 SERVICE MANUAL ABBREVIATIONS AND SYMBOLS
v
Abbreviations and Symbols
BP blood pressure
BrPM breaths per minute
cc cubic centimeters
DAC digital-to-analog converter
°Cdegrees Celsius (centigrade)
hhexadecimal
Hg mercury
Hz hertz
kHz kilohertz
kΩkilohm
LA left arm (lead)
LCD liquid crystal display
LL left leg (lead)
mmilli- (10-3)
MCU microcomputer
MHz megahertz
mm millimeter
mV millivolt
PCA printed circuit assembly (See PCB.)
PCB printed circuit board (See PCA.)
RA right arm (lead)
RL right leg (lead)
SPI Serial Peripheral Interface
Vvolt
µmicro- (10-6)
µVmicrovolt
Ωohm

MPS450 SERVICE MANUAL TABLE OF CONTENTS
vi
Table of Contents
Notices .............................................................................................. i
Safety Considerations .................................................................... iv
Abbreviations and Symbols ............................................................. v
1 GENERAL INFORMATION
Inside This Chapter.......................................................................... 1
Purpose and Scope .......................................................................... 2
Relationship of This Manual to Other Publications........................ 2
Equipment Description .................................................................... 2
Equipment-Relationship Illustration ............................................... 3
2 FUNCTIONAL DESCRIPTION
Inside This Chapter.......................................................................... 4
Theory of Operation ......................................................................... 5
Control ....................................................................................... 5
ECG and Respiration ................................................................. 5
Blood Pressure .......................................................................... 5
Temperature.............................................................................. 5
Cardiac Output .......................................................................... 5
MPS450 Functions ........................................................................... 6
Circuit Description........................................................................... 8
Introduction............................................................................... 8
Digital Printed Circuit Assembly .............................................. 8
Analog Printed Circuit Assembly.............................................. 9
ECG Post Printed Circuit Assembly ......................................... 9
3 SCHEDULED MAINTENANCE
Inside This Chapter........................................................................ 10
Scheduled Maintenance Requirements ........................................ 11
Instructions for Performing Scheduled Maintenance .................. 11

MPS450 SERVICE MANUAL TABLE OF CONTENTS
vii
4 CALIBRATION
Inside This Chapter........................................................................ 12
General Calibration/Verification Information ............................... 13
Warranty Disclaimer ............................................................... 13
Required Equipment................................................................ 13
Calibration Instructions................................................................. 14
Setup for Calibration............................................................... 14
Calibration Procedure ............................................................. 14
Verification of Specs ..................................................................... 19
Setup for Verification.............................................................. 19
Verification Procedure............................................................ 19
Verification of Respiration-Baseline Specs ........................... 20
Verification of ECG-Amplitude Specs .................................... 20
Verification of Blood-Pressure Specs .................................... 22
Verification of Cardiac-Output Specs .................................... 23
Verification of Temperature Specs ........................................ 24
5 TROUBLESHOOTING
Inside This Chapter........................................................................ 25
Troubleshooting Tips ..................................................................... 26
6 MPS450 PARTS
Inside This Chapter........................................................................ 28
Parts List ........................................................................................ 29

Chapter 1
General Information
Inside This Chapter
PURPOSE AND SCOPE
RELATIONSHIP OF THIS MANUAL
TO OTHER PUBLICATIONS
EQUIPMENT DESCRIPTION
EQUIPMENT-RELATIONSHIP
ILLUSTRATION

MPS450 SERVICE MANUAL GENERAL INFORMATION
2
PURPOSE AND SCOPE
The purpose of this manual is to provide information that will assist a qualified technician to service
Fluke Biomedical's MPS450Multiparameter Simulator (hereafter referred to as the MPS450).
RELATIONSHIP OF THIS MANUAL TO OTHER PUBLICATIONS
It is assumed that the reader is familiar with the MPS450 Operator’s Manual (P/N 2243350), which
provides a full description of this product along with operating instructions.
EQUIPMENT DESCRIPTION
The MPS450 is a lightweight, portable, battery-powered unit that provides multiple physiological
simulations for ECG, blood pressure, respiration, temperature, pacemaker, artifact, and arrhythmia
conditions.
The MPS450 is available in one model with four configurations: the basic multiparameter simulator,
the simulator with Cardiac-Output Option, the simulator with Fetal / Maternal ECG Option, and the
simulator with both options. (Options are preprogrammed at time of purchase.) The Cardiac-Output
Option requires a cardiac-output adapter box (P/N 2226808).
The microprocessor control of the MPS450, combined with extensive digital memory, assures rapid
test and verification of cardiac-monitoring medical equipment. All simulation settings are displayed on
the built-in LCD, with adjustable contrast. A keypad enables the entry of functions, parameters, and
codes. Tests and simulations can be selected by choosing menu selections, by using front-panel keys to
enter numeric codes for actions, or by using computer control.
The right side of the MPS450 features connections for linking to blood-pressure, cardiac-output, and
temperature monitors. In addition, there is an auxiliary connection for future expansion. The bottom of
the MPS450 features an RS-232 serial port and a connection for a battery eliminator.
The left side of the MPS450 features a full set of universal ECG jacks, enabling the connection of any
3-, 5-, or 12-lead ECG device. AHA and IEC color-coded dots run along the left side of the face of the
unit as an aid in connecting the corresponding U.S. and international patient leads to the proper
universal ECG jacks on the MPS450:
LABEL MEANING
RA or R Right arm
LA or L Left arm
RL or N Right leg (reference or ground)
LL or F Left leg
V1, V2, V3, V4, V5,
and V6
V Leads (U.S. and Canada), also referred to as pericardial,
precordial, or unipolar chest leads
C1, C2, C3, C4, C5,
and C6
Chest leads (International)

MPS450 SERVICE MANUAL GENERAL INFORMATION
3
EQUIPMENT-RELATIONSHIP ILLUSTRATION
The following diagram illustrates the relationships of the MPS450 top-level-assembly equipment:
KEYBOARD
PN 2220532 PN 2179737
PN 2073578
PN 2073569
KEYBOARD
CONNECTOR
DIGITAL ASSEMBLY
ANALOG ASSEMBLY
EXTERNAL-
POWER
CONNECTOR
BATTERY
CONNECTOR RS-232
CONNECTOR
BLOOD-
PRESSURE
CONNECTOR
TEMPERATURE
AND
CARDIAC-
OUTPUT
CONNECTOR
AUXILIARY
CONNECTOR
DISPLAY
DISPLAY
CONNECTOR
ECG
CONNECTORS
ECG POST ASSEMBLY
PN 2073584
figure1.eps

Chapter 2
Functional Description
Inside This Chapter
THEORY OF OPERATION
MPS450 FUNCTIONS
CIRCUIT DESCRIPTION

MPS450 SERVICE MANUAL FUNCTIONAL DESCRIPTION
5
THEORY OF OPERATION
The MPS450 generates physiological waveforms simulating actual conditions in a patient.
CONTROL
The MPS450 is controlled by a microcomputer (MCU). The MCU runs its own embedded program. It
obtains user input from the keyboard or serial port, writes to the display, and controls the circuits that
generate patient simulations.
ECG and RESPIRATION
The MPS450 ECG circuits simulate signals generated by a patient's heart. They are low-level signals
in the millivolt range. The MCU writes the ECG waveforms to an eight-channel digital-to-analog
converter (DAC). The signals from the DAC are attenuated to the proper low levels by resistor
networks.
Patient monitors measure respiration by measuring a change in impedance across the patient's chest as
the patient breathes. Breathing stretches the chest and, therefore, causes the impedance to change. A
monitor uses the ECG electrodes to measure this impedance at the same time that the monitor senses
the ECG. The MPS450 switches in a digital variable resistor to simulate respiration. The MCU writes
the changes in impedance to the variable resistor to generate the respiration waveform.
BLOOD PRESSURE
Patient monitors measure instantaneous blood pressure internal to the patient's heart and blood vessels
by connecting to pressure transducers that are inserted physically into the area being monitored. A
blood pressure transducer is a 300-ohm bridge device. The monitor supplies an excitation voltage to
the bridge. The transducer then returns a signal proportional to the excitation voltage and the measured
pressure. The MPS450 circuits simulate blood pressure transducers. They contain multiplying DACs
with the excitation voltage driving the DACs' reference inputs.
TEMPERATURE
Patient monitors measure temperature by connecting to a thermistor. The MPS450 contains precision
resistors that have the same resistance as thermistors at specified temperatures.
CARDIAC OUTPUT
Patient monitors can measure the quantity of blood pumped out of the heart. In the cardiac-output
procedure, water (either “iced” or room temperature) is injected into the heart. Then, the temperature
of the blood coming out of the heart is measured. The monitor uses the temperature change to
determine how much blood has been pumped. The MPS450 uses a digital variable resistor to simulate
a thermistor measuring the blood temperature.

MPS450 SERVICE MANUAL FUNCTIONAL DESCRIPTION
6
MPS450 FUNCTIONS
The MPS450 provides control over a wide array of testing parameters.
The variety of normal and abnormal ECG waveforms replicated by the MPS450 can be used not only
for testing arrhythmia-detection systems, but also for training medical personnel, hospital
administrators, and staff. The MPS450 enables the teaching of techniques for pulmonary/respiratory
analysis and ECG-waveform interpretation, as well as techniques for CPR and defibrillation/
cardioversion.
The groupings below describe the MPS450 functions by category:
ECG FUNCTIONS
Normal sinus rhythm
ECG rate and amplitude
Adult / pediatric QRS
ST-segment elevation
ECG-artifact simulation
Pacemaker waveforms
Pacer amplitude and width
The MPS450 provides complete 3-, 5-, and 12-lead
ECG simulation that includes seven artificial
pacemaker conditions. Normal sinus rhythm is output
over a range of heart rates and voltage amplitudes.
The elevation of the ST segment is adjustable.
ARRHYTHMIA FUNCTIONS
Supraventricular arrhythmia
Premature arrhythmia
Missed beat
Ventricular arrhythmia
Conduction defect
The MPS450 simulates 36 types of arrhythmias, such
as multifocal PVCs, bigeminy, trigeminy, tachycardia,
fibrillation, flutter, and asystole. Simulated conduction
defects include first-, second-, and third-degree heart
block; and left- and right-bundle-branch block.
ECG-PERFORMANCE TESTING
Square/pulse/triangle/sine
R waveforms
Wave amplitude
R-wave rate and width
The MPS450 generates square, pulse, triangle, sine,
and R waveforms for performance testing. Wave
amplitude is adjustable, as well as R-wave rate and
width.
RESPIRATION
Respiration lead
Baseline (impedance)
Respiration rate
Respiration amplitude
Apnea simulation
Calibrated respiration rates are generated from 15 to
120 BrPM (breaths per minute), including four
respiration-impedance selections, with two different
lead selections (LA or LL). The output-impedance
level is adjustable to 500, 1000, 1500, or 2000 ohms.
The MPS450 generates apnea pauses (0 BrPM) of 12,
22, and 32 seconds, as well as a continuous-apnea
condition.

MPS450 SERVICE MANUAL FUNCTIONAL DESCRIPTION
7
BLOOD PRESSURE
BP sensitivity
BP zeroing
Static-pressure levels
Dynamic BP waveforms
BP respiration artifact
Swan-Ganz simulation
The MPS450 simulates static and dynamic invasive
pressures, providing complete blood-pressure simulation.
The MPS450 also provides calibrated static pressures
and dynamic waveforms to simulate signals such as
pulmonary-artery, left- and right-ventricle and
Swan-Ganz (RA-RV-PA-PAW) pressures.
TEMPERATURE
Temperature settings The MPS450 provides four preset temperature
simulations: 0 °C, 24 °C, 37 °C, and 40 °C. All
temperature simulations are compatible with Yellow
Springs, Inc. (YSI) Series 400 and 700 thermistors.
CARDIAC OUTPUT (OPTION)
Injectate temperature
Blood-flow rate
Faulty-injectate curve
Left-to-right-shunt curve
Calibrated pulse
The MPS450 simulates cardiac-output waveforms for
testing the accuracy and sensitivity of cardiac-output
computational devices equipped with Baxter-Edwards-
type catheters. Injectate temperature can be set either to
“iced” or to room-temperature conditions; blood-flow
rate is selectable from three different rates (2.5, 5.0, or 10
liters-per-minute) for each of the two temperature
selections. The MPS450 also simulates a faulty-injectate
curve, as well as a left-to-right-shunt curve.
FETAL / MATERNAL ECG (OPTION)
Fixed/periodic FHR
IUP simulation
The MPS450 simulates a combined fetal and maternal
ECG occurring during labor, as well as a selection of
direct-pressure waveforms produced by uterine
contractions. The contraction period is adjustable and
includes a manually generated waveform.
REMOTE OPERATIONS
RS-232 serial port
Computer control
MPS450 features include a built-in RS-232 serial port
that, when connected to a computer, enables instrument
control through remote commands. In addition, a special
command can be used to operate the MPS450 remotely
in the numeric-control mode.

MPS450 SERVICE MANUAL FUNCTIONAL DESCRIPTION
8
CIRCUIT DESCRIPTION
INTRODUCTION
Refer to the Equipment-Relationship Illustration in Chapter 1, “General Information.” As shown in the
illustration, the MPS450 comprises three printed circuit assemblies (PCAs), each portrayed as a
separate block on the diagram:
Digital Assembly
Analog Assembly
ECG Post Assembly
Each of these circuit blocks is described below. (See also the MPS450 PCA images, available in the
section called “Top-Level Assembly” in Chapter 6, “MPS450 Parts.”)
DIGITAL PRINTED CIRCUIT ASSEMBLY
The Digital PCA is the location of the microcomputer that controls all instrument functions, as well as
general power supplies and digital circuits:
oPower on/off control
oPower supplies
± 5 V
oMicroController:
Microprocessor
RAM
FLASH
EEROM
Timers
Serial ports
oKeyboard Interface
oDisplay interface
oRS-232 port:
Level shifters
Transmitter/receivers
Digital/Analog PCA interface
oConnectors:
External power-source connector
Internal power-source (battery) connector
Display connector
Digital/Analog PCA connector (controls patient-simulation circuits)

MPS450 SERVICE MANUAL FUNCTIONAL DESCRIPTION
9
ANALOG PRINTED CIRCUIT ASSEMBLY
The Analog PCA is the location of all patient-simulation circuits, which are controlled by the
microcomputer on the Digital PCA:
oECG-wave generation
oECG-amplitude control
oPacer-pulse amplitude and width control
oRespiration-lead and baseline-impedance selection
oRespiration-wave generation
oRespiration-amplitude control
oBlood-pressure-sensitivity selection
oBlood-pressure-wave generation
oBlood-pressure excitation-voltage modulation
oTemperature-resistance selection
oCardiac-output-wave generation
oAuxiliary port operation
oConnectors:
Digital/Analog PCA connector
ECG PCA Assembly connector
Blood-pressure channels 1 – 4 connectors
ECG POST PRINTED CIRCUIT ASSEMBLY
The ECG Post PCA is the location of protection circuitry. It connects to the ECG signals from the
Analog PCA and routes the signals to the ten ECG posts.

10
Chapter 3
Scheduled Maintenance
Inside This Chapter
SCHEDULED MAINTENANCE
REQUIREMENTS
INSTRUCTIONS FOR PERFORMING
SCHEDULED MAINTENANCE

MPS450 SERVICE MANUAL SCHEDULED MAINTENANCE
11
SCHEDULED MAINTENANCE REQUIREMENTS
The following table reflects the requirements for scheduled maintenance:
INTERVAL DESCRIPTION
Annually Calibration
“Low Battery”
message displayed
Replace the batteries immediately. The battery compartment is
located at the back of the unit, toward the bottom. Use only two
new 9-volt alkaline batteries. (Note that the MPS450 operates
continuously for 8 or more hours on two new 9-volt batteries.)
INSTRUCTIONS FOR PERFORMING SCHEDULED MAINTENANCE
Refer to Chapter 4 in this manual, “Calibration.”

Chapter 4
Calibration
Inside This Chapter
GENERAL CALIBRATION / VERIFICATION INFORMATION
CALIBRATION INSTRUCTIONS
VERIFICATION OF SPECS

MPS450 SERVICE MANUAL CALIBRATION
13
GENERAL CALIBRATION / VERIFICATION INFORMATION
Calibration is the procedure by which an instrument is adjusted to make its indicated values correspond
as closely as possible with the actual values being measured. Verification is accomplished by
comparing readings of the instrument with those of another instrument that serves as a reference or
standard.
WARRANTY DISCLAIMER
The MPS450 should be calibrated once a year by a qualified technician. It is recommended that the
instrument be sent to Fluke Biomedical for factory calibration and service. However, if you choose to
calibrate the MPS450, it is important to be aware that the warranty on the unit becomes void if the
tamper-resistant Quality Seal on the rear panel is broken – Step # 3 in the calibration-setup instructions
below – without proper factory authorization. (Refer to “Warranty Disclaimer” on Page ii.)
NOTE: When returning the unit for calibration, repair, or service,
be sure to follow the “Return Procedure” in “Standard
Terms and Conditions” in the section in this manual called
“Notices.”
REQUIRED EQUIPMENT
The following equipment is required for calibration/verification:
General equipment:
DMM, 6.5 digit, Keithley 2000 or equivalent
Power supply, 10 V DC, 33 mA
Battery eliminator – optional (P/N 2184298)
Hand tools:
Phillips screwdriver
ESD wrist strap
Test fixtures:
MPS450 BP calibration cable (P/N 2201618)
MPS450 temp/CO cable (P/N 2201607)