Omega Engineering CYD201 Manuel d'utilisateur Page 39
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- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
OMEGA Model CYD201/CYD208 User’s Manual
Service 5-3
5.3 ERROR CODE TROUBLESHOOTING
On power up, the CYD201/CYD208 checks internal memory. If a problem
exists, an error message displays on the front panel of the instrument.
Er01
indicates a hardware problem in the instrument memory. This error is
not user-correctable.
Er02
indicates a soft error in the instrument memory. To correct this error,
use the following procedure.
1. Power up the unit and allow it to display Er02.
2. Close DIP Switch 1 (top of the switch pressed in). Leave the switch
closed for at least 5 seconds, then open DIP switch 1 (bottom of the
switch pressed in).
3. Verify the Model CYD201/CYD208 display goes through a normal power
up sequence and then displays 499.9 K.
4. The input(s) of the Model CYD201/CYD208 must now be recalibrated
per in procedure in Paragraph 5.7 before the unit can be used.
OL
indicates a voltage input overload. This can be caused by an open
sensor or diode sensor wired backwards.
Before calling the factory about a persistent problem, try the procedure
below:
WARNING: This procedure erases calibration constants stored in Non-
Volatile RAM. If this procedure is used, recalibrate the instrument.
1. With power turned Off, press and hold
CAL ENABLE
on the back panel.
While holding
CAL ENABLE
, turn instrument power On.
2. If the Model CYD201/CYD208 displays
Er02
, follow the Calibration
procedure in Paragraph 5.7. If
Er01
still displays or if the Model
CYD201/CYD208 does not respond, contact OMEGA Service.
5.4 GENERAL MAINTENANCE
Clean the CYD201/CYD208 periodically to remove dust, grease and other
contaminants. Clean the front and back panels and case with a soft cloth
dampened with a mild detergent and water solution.
NOTE:
Do not use aromatic hydrocarbons or chlorinated solvents to clean
the Model CYD201/CYD208. They may react with the silk screen printing on
the back panel.
- 1
- 1
- RETURN REQUESTS / INQUIRIES 2
- WARRANTY 2
- TABLE OF CONTENTS 3
- TABLE OF CONTENTS (Continued) 4
- LIST OF ILLUSTRATIONS 5
- LIST OF TABLES 5
- CHAPTER 1 7
- INTRODUCTION 7
- 1.2.2 LHe and LN 9
- Safety Precautions 9
- 1.2.3 Recommended First Aid 10
- CHAPTER 2 13
- INSTALLATION 13
- 2.4.1.1 Two-Lead Measurement 15
- 2.4.1.2 Four-Lead Measurement 15
- 2.4.3 Sensor Mounting 16
- 2-10 Installation 22
- CHAPTER 3 23
- OPERATION 23
- 3.5.1 Alarm Setpoint 24
- 3-6 Operation 28
- CHAPTER 4 29
- REMOTE OPERATION 29
- 4-2 Remote Operation 30
- J2 SERIAL I/O 30
- 4.1.3 Sample Basic Program 31
- R Alarm Reset 33
- Y Channel Dwell Time 33
- YC Channel Scanner Channel 34
- YH End Scanning 34
- YS Begin Scanning 34
- WA Switch ID and Alarm Data 34
- WY Scan Status 35
- 4-8 Remote Operation 36
- CHAPTER 5 37
- Service 5-7 43
- 5-8 Service 44
- CHAPTER 6 45
- OPTIONS AND ACCESSORIES 45
- Interface Output 47
- CYD201 or 47
- 6-4 Options and Accessories 48
- APPENDIX A 49
- CURVE TABLES 49
- Appendix A A-3 51
- Appendix A A-5 53
- Appendix A A-7 55
- (Continued) 56
- NOTES 57
- TEMPERATURE 59
- PRESSURE/STRAIN 59
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