Omega-vehicle-security freedom OM-550 Manuel d'utilisateur télécharger pdf (Page 40)

OM-550 u35u

4.14.5 MATCHING AND SCALING A VOLTAGE TRANSDUCER

EXAMPLE: Given a 20 - 90 % RH (Relative Humidity) transducer with a 0 - 10 VDC

output at a maximum current of 3 mA.

Program the OM-550 to indicate 20.00 %RH to 90.00 %RH (that is, to indicate %RH

with 0.01% resolution).

If a ±10 Voltage Probe is being used, begin with step 3, below. (This probe is already

matched to the OM-550).

1. First, find the Matching resistors:

I = 1/2 maximum current

= 0.003 / 2

= 0.0015 Amps

R1 = 2 / I R2 = (V - 2) / I

= 2 / 0.0015 = (10 - 2) / 0.0015

= 1333 Ω = 5333 Ω

2. Check:

V= (R1 + R2) * I V = R2 * I

= (1333+5333)*1.5 mA = 1333*1.5 mA

= 9.999 = 1.9995

= 10 = 2

With these matching resistors the OM-550 will see a max 2 VDC at the Transducer max

output of 10 VDC.

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 83 84

Table of Contents 1
Introduction 3
•• Terms used in this Manual 3
•• Product Symbols 3
Operator Safety Information 4
OM-550 uvu 5
1.0 UNPACKING 6
2.0 FEATURES 7
2.1 OM-550 FEATURES 7
OM-550 u3u 8
Figure 2-3 8
ACTIVITY LED 8
OM-550 u4u 9
Figure 2-4 9
OM-550 u6u 11
Figure 2-8 11
OM-550 u7u 12
OM-550 u8u 13
Figure 2-9 13
OM-550 u9u 14
Figure 2-10 14
Figure 2-11 15
SERIAL DATA PORT 15
OM-550 u10u 15
OM-550 u11u 16
Figure 2-12 16
2.2 POWER SUPPLIES 17
2.3 INPUTS 18
OM-550 u14u 19
Figure 2-14 19
2.4 PROGRAMMED FEATURES 20
OM-550 u16u 21
Figure 2-15 21
Figure 2-16 21
LOG INTERVAL WARNING 21
OM-550 u17u 22
Figure 2-17 22
3.0 SET-UP 23
3.1 POWER CONNECTION 23
OM-550 u19u 24
Figure 2-18 24
3.2 PAPER INSTALLATION 25
3.3 DATA PORT CONNECTION 26
4.0 PROGRAMMING 27
4.1 PROGRAMMING KEYS 28
4.2 PRINT FORMATTING 29
4.3 TEMPERATURE CHANNELS 30
4.4 VOLTAGE CHANNELS 30
4.5 MATH PSEUDO-CHANNEL 31
4.6 LOG INTERVAL 32
OM-550 u28u 33
Figure 4-5 33
Figure 4-6 33
4.8 DATE 34
4.9 TIME 34
4.10 TEMPERATURE UNITS 34
4.11 REJECTION FREQUENCY 34
4.12 CALIBRATION MODE 35
4.13 TADJUST 36
4.14 VOLTAGE INPUT SCALING 37
OM-550 u33u 38
Figure 4-9 38
OM-550 u34u 39
OM-550 u35u 40
OM-550 u36u 41
Figure 4-10 41
OM-550 u37u 42
OM-550 u38u 43
Figure 4-11 43
4.15 UNIT LABELS 44
5.0 OPERATION 45
OM-550 u41u 46
Figure 5-3: Log Interval Time 46
Figure 5-5: Current Date 46
OM-550 u42u 47
Figure 5-6: Current Date 47
Figure 5-7: Temperature Units 47
Figure 5-8: Reject Frequency 47
OM-550 u43u 48
OM-550 u44u 49
Figure 5-11 49
APPENDIX A: CALIBRATION 50
•• MANUAL RESET 50
•• CALIBRATION PROCEDURE 51
OM-550 u47u 52
Figure A-4 52
GAIN ADJUST 52
OM-550 u48u 53
Figure 6-1 53
SPECIFICATIONS 54
OM-550 u50u 55
Power Adapter 55
OM-550 u51u 56
OM-550 DOS Software 57
TABLE OF CONTENTS 58
INTRODUCTION 59
ŸŸ How to Use This Manual 59
ŸŸ Terms Used in this Manual 59
ŸŸ Fonts Used in this Manual 60
ŸŸ File Formats 60
PC Hardware Requirements 61
Software Installation 62
1.0 STARTING THE PROGRAM 63
2.0 MASTER MENU 64
OM-550 DOS Software u3u 65
Data Transfer Screen 65
2.2 LOAD EXISTING LOG FILES 66
OM-550 DOS Software u5u 67
Software Configuration Screen 67
OM-550 DOS Software u6u 68
2.4 LIST DATA ON MONITOR 69
2.5 PRINT DATA ON PRINTER 70
2.6 SAVE TEXT FILE 70
2.7 EDIT PLOT LABELS 71
2.8 HOT PLOT 72
OM-550 DOS Software u11u 73
Status Bar 73
OM-550 DOS Software u12u 74
Magnify Tool 74
OM-550 DOS Software u13u 75
MAGNIFIED 75
OM-550 DOS Software u14u 76
OM-550 DOS Software u16u 78
OM-550 DOS Software u17u 79
2.8.5 DATA GRAPH 80
OM-550 DOS Software u19u 81
OM-550 DOS Software u20u 82
Help Menu 82
2.10 QUIT 83
APPENDIX A: KEY FUNCTIONS 84

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Omega-vehicle-security freedom OM-550 Manuel d'utilisateur Page 40

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