Yokogawa 202 Field Mounting Rate Totalizer User Manual
Page 3
CONTENTS
1. Introduction
1
1.1 Model Number Designation
3
1.2 Intrinsic Safety Considerations
4
2. Specification
6
3. Operation
8
3.1 Display
8
3.2 Test Mode
9
3.3 Filtering
10
3.4 Calculation of Rate and Total
12
3.5 Total Conversion
13
3.6 Frequency Cutoff
14
4. Programming
15
4.1 Program Steps
16
5. Example
19
6. Versions
20
6.1 Battery Powered Version
21
6.2 DC Power Version
22
6.3 Relay and 4-20mA Output Version
24
7. Flowmeter Input
26
8. Intrinsic Safety Connections
31
8.1 Coils
31
8.2 Simple Apparatus
32
8.3 Namur Proximity Switches
32
8.4 Alarm Outputs
35