User manual - METER SRL-49
CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY........................................................................................3
2. GENERAL CHARACTERISTICS................................................................................................................4
3. TECHNICAL DATA......................................................................................................................................4
4. DEVICE INSTALLATION............................................................................................................................6
4.1. UNPACKING.......................................................................................................................................6
4.2. ASSEMBLY........................................................................................................................................6
4.3. CONNECTION METHOD...................................................................................................................9
4.4. MAINTENANCE................................................................................................................................15
5. FRONT PANEL DESCRIPTION................................................................................................................15
6. PRINCIPLE OF OPERATION...................................................................................................................16
6.1. MEASUREMENT MODE..................................................................................................................16
6.2. DETECTION OF THE PEAK VALUES............................................................................................17
6.3. CONTROL OF THE RELAY OUTPUTS..........................................................................................1
6.3.1. One threshold mode................................................................................................................19
6.3.2. Two thresholds mode..............................................................................................................20
7. DEVICE PROGRAMMING.........................................................................................................................21
7.1. PROGRAMMING MENU..................................................................................................................21
7.2. PARAMETERS EDITION.................................................................................................................22
7.2.1. Numeric parameters (digit change mode)...............................................................................22
7.2.2. Numeric parameters (slide change mode)..............................................................................22
7.2.3. Switch parameters (“LIST” type).............................................................................................23
7.3. MENU DESCRIPTION.....................................................................................................................23
7.3.1. “rEL1” menu.............................................................................................................................24
7.3.2. “bEEP” menu...........................................................................................................................26
7.3.3. “inPt” menu..............................................................................................................................26
7.3.4. ”OutP” menu............................................................................................................................31
7.3.5. “bAr” menu...............................................................................................................................32
7.3.6. ”bri” parameter.........................................................................................................................34
7.3.7. ”HOLd” menu...........................................................................................................................34
7.3. . ”SECu” menu...........................................................................................................................35
7.3.9. ”rS” menu.................................................................................................................................35
7.3.10. ”Edit” parameter....................................................................................................................36
7.3.11. ”dEFS” parameter..................................................................................................................36
7.3.12. ”SErv” menu..........................................................................................................................36
7.4. MENU STRUCTURE........................................................................................................................37
8. THE ALARM LED......................................................................................................................................3
. OVER-CURRENT PROTECTION.............................................................................................................3
10. DISPLAYED VALUES CALCULATION..................................................................................................3
10.1. ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC).............................39
10.1.1. Linear characteristic..............................................................................................................40
10.1.2. Square characteristic............................................................................................................40
10.1.3. Square root characteristic.....................................................................................................41
10.1.4. User defined characteristic...................................................................................................41
10.1.5. Volume characteristics of a cylindrical tank..........................................................................42
10.2. EXAMPLES OF CALCULATIONS.................................................................................................43
11. THE MODBUS PROTOCOL HANDLING...............................................................................................48
11.1. LIST OF REGISTERS....................................................................................................................4
11.2. TRANSMISSION ERRORS DESCRIPTION..................................................................................53
11.3. EXAMPLES OF QUERY/ANSWER FRAMES...............................................................................53
12. DEFAULT AND USER'S SETTINGS LIST.............................................................................................56
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