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Related Manuals for Welch Allyn Diatek 600
Summary of Contents for Welch Allyn Diatek 600
- Page 1 Thermo Menu Operation Manual ® Diatek Model 600 Thermometer Technical Manual...
- Page 2 © 1996 by Diatek Instruments, Inc., A Welch Allyn Company. All rights reserved. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, without prior consent in writing from Diatek.
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Page 3: Table Of Contents
Technical Manual TABLE OF CONTENTS WARRANTY ..........................3 MODEL 600 OPERATIONAL CHARACTERISTICS ..............4 Normal Mode ......................... 4 Monitor Mode......................... 4 Pulse Timer..........................4 Backlight ..........................4 Error Indicators ........................5 Broken Probe ..........................5 Low Battery ............................5 Instrument Malfunction ........................5 Self-Tests.......................... - Page 4 Diatek, A Welch Allyn Company OPERATING INSTRUCTIONS....................19 Set-up Procedure......................... 19 Preparation for temperature measurement:................. 19 Normal Mode Operation ...................... 19 Oral Temperature Measurement ....................19 Rectal Temperature Measurement ....................20 Monitor Mode Operation ...................... 20 Backlight Operation ......................20 Pulse Timer.......................... 20 °F/°C Conversion .........................
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Page 5: Warranty
The information in this manual has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of Welch Allyn or Diatek devices any license under the patent rights to the manufacturer. Model 600... -
Page 6: Model 600 Operational Characteristics
Diatek, A Welch Allyn Company MODEL 600 OPERATIONAL CHARACTERISTICS The Diatek Model 600 Digital Thermometer is a portable instrument for measuring patient temperatures over the 84°F to 108°F (28.9°C to 42.2°C) range. The Model 600 features an LCD readout with backlight, interchangeable probes, disposable prove covers, disposable batteries with a capacity for up to 45,000 temperatures, automatic power shutdown, both normal and monitor modes of operation and self-calibration/test capability. -
Page 7: Error Indicators
Technical Manual Error Indicators Probe Position Error—During normal mode operation the visual probe position error indicator will be displayed as long as tissue contact is broken and the probe temperature is falling. This display indicates that a condition exists which may not provide accurate temperatures. The error indicator does not affect the temperature taking cycle in any way. -
Page 8: Internal Microprocessor Test
Diatek, A Welch Allyn Company seconds and no temperature measurement will be allowed. The thermometer will automatically shut off after 5 minutes of the error display. Internal Microprocessor Test During each thermometer display test a check sum of all program memory is calculated and compared against a reference stored in the program memory. -
Page 9: Model 600 Theory Of Operation
Technical Manual MODEL 600 THEORY OF OPERATION Note: Refer to Model 600 Thermometer Block Diagram and Model 600 Schematic Diagram. Technical Overview The heart of the Model 600 is comprised of two custom integrated circuits which provide the microprocessor and analog circuit functions. All control and display functions are governed by the microprocessor (U2) and all analog interfacing to the microprocessor, probe, horn and backlight is provided by U1. -
Page 10: Probe Temperature Measurement
Diatek, A Welch Allyn Company 2. The low battery detector output (Ul-9) is tested by the microprocessor. A low logic level on Ul-9 indicates a low battery condition (less than 3.0 volts). 3. The horn drive signal (U2-11) goes high activating the horn test for 0.1 second. -
Page 11: Self Tests
Technical Manual The normal mode temperature cycle is terminated when the predicted temperature remains stable for several seconds. SELF TESTS Internal Calibration Test The calibration test is performed only once during a temperature taking cycle and occurs during the display test. Upon completion of the first calibration cycle, the resistance of R4 is measured and compared against limits stored in the microprocessor memory. -
Page 12: Power Consumption
Diatek, A Welch Allyn Company Power Consumption Without the thermometer or pulse timer active the average battery current should be under 50 microamperes. When the thermometer function is active the average battery current should be about 1 milliamp. Maximum battery current with the backlight on should be about 25 milliamperes. -
Page 13: Figure 1 - Block Diagram
Technical Manual Figure 1 - Block Diagram Model 600... -
Page 14: Figure 2 - Schematic
Diatek, A Welch Allyn Company Figure 2 - Schematic Model 600... -
Page 15: Figure 3 - Schematic (Earlier Serial Numbers)
Technical Manual Figure 3 - Schematic (earlier serial numbers) Model 600... -
Page 16: Figure 4 - Printed Circuit Board Component Layout
Diatek, A Welch Allyn Company Figure 4 - Printed Circuit Board Component Layout Model 600... -
Page 17: Figure 5 - Final Assembly
Technical Manual Figure 5 - Final Assembly Model 600... - Page 18 Diatek, A Welch Allyn Company Model 600...
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Page 19: Figure 6 - Operating Controls And Components
Technical Manual Figure 6 - Operating Controls and Components Model 600... -
Page 20: Specifications
Diatek, A Welch Allyn Company SPECIFICATIONS Range: Normal and monitor modes 28.9°C to 42.2°C 84.0 °F to 108.0 °F Accuracy: ±0.1 °C, ±0.2 °F (when tested in a calibrated water bath) Battery Capacity: disposable batteries three type AA cells up to 1000 hours of continuous use Dimensions: length 6.25 inches (159mm);... -
Page 21: Operating Instructions
Technical Manual OPERATING INSTRUCTIONS Set-up Procedure 1. Unpack the Model 600 Thermometer and probes, checking for any damage that may have occurred during shipping. 2. Insert the plug of the probe to be used into the thermometer receptacle and then insert the probe shaft into the probe storage channel of the thermometer. -
Page 22: Rectal Temperature Measurement
Diatek, A Welch Allyn Company Rectal Temperature Measurement Exchange the blue oral probe for the red rectal probe by removing the connector plug from the thermometer and the probe from the storage channel. Complete the exchange by placing the rectal probe in the storage channel and plugging the connector into the thermometer. -
Page 23: Error Indicators
Technical Manual Error Indicators When any of the following errors occur, a tone will sound twice for .1 seconds and the appropriate error indicator will be flashing on and off (.5 seconds). Except for probe position error, no temperature will be displayed while in the error mode and the unit will shut off in 5 minutes. -
Page 24: Microprocessor Self Check
Diatek, A Welch Allyn Company Microprocessor Self Check Each time the thermometer is turned on, an internal check for proper microprocessor operation, including a test of the entire program, is made during the display test. A malfunction error will be indicated if any faults are located. -
Page 25: Test Procedure
Technical Manual Test Procedure Power Up Display Test 1. Install a new set of batteries. 2. Immediately upon inserting the last battery, the display test will start. 3. Observe all display segments as they are sequentially lighted and then extinguished. Every segment must be visible. -
Page 26: Model 600 Troubleshooting
Diatek, A Welch Allyn Company temperature settings. The thermistor based instrument under test must be in Monitor mode and no probe cover loaded. The probe is inserted into the small hole in the dry heat well of the 9600 and allowed to settle for 2 minutes to the final temperature. - Page 27 Technical Manual MODEL 600 TROUBLESHOOTING (PCB ASSEMBLY) No Display: Processor clocks U2-59, 21 Display enable U2-10 Display Voltages U2-23, 24, 25 Malfunction Error or Off Cal: With power off, measure R3, R4, and R5 Values must be within + 5 ohms FET Checks: If malfunction error is showing check for any FET leakage by connecting the voltmeter across R3, R5 and probe with a cal plug in place.
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Page 28: Parts List (Units With Serial Numbers Equal To Or Greater Than 193309)
Diatek, A Welch Allyn Company PARTS LIST (units with serial numbers equal to or greater than 193309) REFERENCE DESIGNATOR DESCRIPTION DIATEK P/N IC, MOG-3242 MONOCHIP 54124-000 IC, UPD75036 G-12 MASK ROM 54123-000 CAP, 47µF/6.3V 20% TANT 46090-0000 CAP 15µF/10-16V 10% TANT... -
Page 29: Parts List (Units With Serial Numbers Less Than 193309)
Technical Manual PCB, MODEL 600 THERMOMETER 56078-000 SCREW, MACH 4-40 X 1 1/16 PHD 83036-000 SCREW, THD ROLL #4 X 3/4 CSK 82° PLASTILOK (2) 83037-000 SCREW, THD ROLL #4 X 1/4 CSK 82° PLASTILOK (2) 83021-000 PARTS LIST (units with serial numbers less than 193309) REFERENCE DESIGNATOR DESCRIPTION DIATEK P/N... -
Page 30: Recommended Spare Parts For Model 600
Diatek, A Welch Allyn Company PCB, MODEL 600 THERMOMETER 56078-000 SCREW, MACH 4-40 X 1 1/16 PHD 83036-000 SCREW, THD ROLL #4 X 3/4 CSK 82° PLASTILOK (2) 83037-000 SCREW, THD ROLL #4 X 1/4 CSK 82° PLASTILOK (2) 83021-000... -
Page 31: Model 600 Preventative Maintenance
Technical Manual SCREW, THD-ROLL #4X1/4 P-PL-S-Z 83021-0000 SCREW, PLASTITE, 4-20 X 7/8 FLAT 83035-000 HEAD 82 DEG PL-S-Z SCREW, MACH 4-40 X 1 1/16 P-PL-S-Z 83036-0000 SCREW, PLASTITE 4-20 X 3/4 - FLAT 83037-000 HEAD 82 DEG PL-S-Z MODEL 600 PREVENTATIVE MAINTENANCE The following suggested preventative maintenance is recommended to maximize uninterrupted service with the Model 600 Thermometer. - Page 32 7420 Carroll Road, San Diego, California 92121 • (800) 854-2904 • (619) 621-6600 • FAX (619) 621-6610 70017-000H...
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