Rhosonics B30 Series User manual

B30 SERIES –CONCENTRATION METER B31
MANUAL
CONTINUOUS IN-LINE MONITORING AND PROCESS CONTROL

B30 Series –Concentration Meter B31
PREFACE
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1. PREFACE....................................................................................................................................... 4
1.1 PURPOSE ...................................................................................................................................... 4
1.2 SYMBOLS AND CONVENTIONS............................................................................................................. 4
1.3 ABOUT THIS MANUAL....................................................................................................................... 4
1.3.1 CONVENTIONS......................................................................................................................................... 4
1.4 DOCUMENT ISSUE ........................................................................................................................... 5
2. INSTALLATION .............................................................................................................................. 6
2.1 INTRODUCTION............................................................................................................................... 6
2.2 INSTALLATION OF THE B31 ................................................................................................................ 7
2.2.1 DIMENSIONS........................................................................................................................................... 7
2.2.2 MOUNTING B31 ..................................................................................................................................... 8
2.2.3 CONNECTING PROCESS TUBE /PIPE ............................................................................................................. 9
2.3 ELECTRICAL CONNECTIONS B31 .........................................................................................................10
2.3.1 POWER SUPPLY......................................................................................................................................10
2.3.2 POWER CABLE AND GLAND .....................................................................................................................10
2.3.3 RS232 OUTPUT AND GLAND ...................................................................................................................10
2.3.4 USB PORT ............................................................................................................................................11
2.3.5 CONNECTION 24 VDC POWER AND RS232................................................................................................11
2.3.6 RS232 (MODBUS RTU PROTOCOL).......................................................................................................... 13
2.3.7 MODBUS (SLAVE)-PLC (MASTER).........................................................................................................13
2.3.8 ATTACHMENT A: INTERPRET THE INPUT DATA.....................................................................................15
2.3.9 CONNECTION USB-PORT TO A PC ............................................................................................................16
3. OPERATION .................................................................................................................................18
3.1 INTRODUCTION..............................................................................................................................18
3.1.1 FUNCTIONALITY PER USER INTERFACE ........................................................................................................ 19
3.2 LCD SCREEN .................................................................................................................................20
3.2.1 SCHEDULE OPERATION LCD SCREEN..........................................................................................................20
3.2.2 CONVENTION ........................................................................................................................................ 20
3.2.3 STATUS ANALYZER.................................................................................................................................. 21
3.3 USB-PORT ...................................................................................................................................23
3.3.1 SOFTWARE UPDATE................................................................................................................................23
3.3.2 RHOSONICS SERVICE APPLICATION (RHOSONICS SA 9D)...............................................................................23
4. CONFIGURATION .........................................................................................................................24
4.1 INTRODUCTION..............................................................................................................................24
4.2 LCD SCREEN .................................................................................................................................24
4.2.1 HOME PAGE /MEASURED VALUES ...........................................................................................................24
4.2.2 MAIN MENU .........................................................................................................................................24
4.2.3 DECAY TIME..........................................................................................................................................25
4.2.4 BACK-LIGHT ..........................................................................................................................................25
4.2.5 DISPLAY LINES .......................................................................................................................................25
4.2.6 ACCESS CODE........................................................................................................................................26
4.2.7 ADVANCED FUNCTION ............................................................................................................................26
4.2.8 LIQUID SELECT.......................................................................................................................................27
4.2.9 SET BAUD RATE.....................................................................................................................................27

B30 Series –Concentration Meter B31
PREFACE
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4.2.10 CHECK FUNCTION ................................................................................................................................27
4.3 LOAD AND READ SETTINGS VIA SERVICE APP ..........................................................................................28
4.4 LOAD AND READ LIQUID SETTINGS VIA SERVICE APP.................................................................................29
5. CALIBRATION LCD SCREEN ...........................................................................................................30
5.1CALIBRATION MENU.......................................................................................................................30
5.1.1 TEMPERATURE CALIBRATION....................................................................................................................30
5.1.2 CONDUCTIVITY CALIBRATION.................................................................................................................... 30
5.1.3 SAMPLE CALIBRATION.............................................................................................................................31
6. MAINTENANCE ............................................................................................................................32
6.1 REPLACING A CELL AND /OR ANALYZER BOX..........................................................................................32
6.2 UPDATING SENSOR SETTINGS AFTER REPLACEMENT.................................................................................33
7. DIAGNOSTICS & SERVICE..............................................................................................................34
7.1 DIAGNOSTICS MENU.......................................................................................................................34
7.1.1 SYSTEM STATUS.....................................................................................................................................34
7.1.2 RESTORE CALIBRATIONS ..........................................................................................................................35
7.1.3 SET CLOCK AND DATE .............................................................................................................................35
7.1.4 LOGGING AND SETTINGS FOR DIAGNOSTICS &EVALUATION...........................................................................36
7.1.5 COLLECT LOG DATA USING USB................................................................................................................36
7.1.6 ERASE LOG ...........................................................................................................................................38
8. DISTRIBUTORS CALIBRATION (FOR RHOSONICS AND DISTRIBUTORS ONLY)...................................39
8.1 USB-PORT (ONLY DISTRIBUTORS AND FACTORY) ...................................................................................39
8.2 TEMPERATURE ..............................................................................................................................39
8.2.1 WHEN NEEDED......................................................................................................................................39
8.3 PATH CALIBRATION.........................................................................................................................41
8.3.1 WHEN NEEDED......................................................................................................................................41
8.4 TRESISTANCE CALIBRATION ..............................................................................................................43
8.5 CONDUCTIVITY CALIBRATION.............................................................................................................43
8.6 KLIQUID (CONDUCTIVITY SAMPLE CALIBRATION) ...................................................................................45
9. TECHNICAL SPECIFICATIONS.........................................................................................................47
9.1 OPERATION CHARACTERISTICS ...........................................................................................................47
9.2 B31 HOUSING ...............................................................................................................................48
10. APPENDICES ..............................................................................................................................49
10.1 LIST OF SPARE PARTS .....................................................................................................................49
10.2 OPTIONS....................................................................................................................................49
10.3 APPENDIX A: SOUND SPEED OF WATER AT 0TO 100 °C.........................................................................49

B30 Series –Concentration Meter B31
PREFACE
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1. Preface
1.1 Purpose
This manual explains the installation, configuration, operation and calibration of your concentration
meter (B30 series), whenever settings are general for more models the B31 is called analyzer.
For ease of reading and understanding, the manual is organized in logical steps, divided over several
chapters and sections. Where necessary, the manual provides additional information about the above
mentioned issues.
1.2 Symbols and conventions
The following words and symbols indicate special messages:
This symbol indicates that failure to follow directions in the warning could result in bodily harm.
This symbol indicates that failure to follow directions could result in damage to the equipment or loss of
information.
IMPORTANT:
This word indicates that the text that follows contains clarifying information or specific instructions.
NOTE:
This word indicates that the text that follows contains comments, sidelights or interesting points of
information.
1.3 About this manual
1.3.1 Conventions
•The symbols ●, ○ and 1. indicate a step to be performed or other instructions
•Text represented as [Bold] indicates the button below the screen display to be pressed
•Text in ITALIC refers to text displayed on the screen display
•Pages on the screen display are represented as figures.
•The picture shown in the manual might differ from the picture shown on the display.
WARNING:
CAUTION:

B30 Series –Concentration Meter B31
PREFACE
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1.4 Document Issue
Document name: B31 Manual
Date
Issue
Description
29/11/2016
1
First issue
24/07/2017
2
Updated operation for added functionality
22/05/2018
3
Added conductivity sample calibration
24/05/2018
A
Manual for hardware revision 2
17/10/2019
B
MODBUS, logging and status updated

B30 Series –Concentration Meter B31
INSTALLATION
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2. Installation
2.1 Introduction
Purpose:
Installation of B31 unit and cables.
The B31 is a 24 VDC powered standalone sensor with RS232 output, Modbus RTU protocol
Installation should be performed by skilled installation technicians (mechanical and electrical).
Installation:
•In chapter 2.2 the B31 mounting instructions are described.
•In chapter 2.3 the electrical mounting instructions of the B31 are described.
Must be provided on site:
•Mounting hardware for wall mounting: M5 bolt, minimum length 20 mm
•Process pipe Ø12 mm (OD) with wall thickness 1 mm
•Power 24 VDC
•Power cable for 24 VDC
•RS232 cable
A Concentration meter B31
CAUTION:

B30 Series –Concentration Meter B31
INSTALLATION
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2.2 Installation of the B31
2.2.1 Dimensions (in mm)
B31
Analyzer box
Sensor box

B30 Series –Concentration Meter B31
INSTALLATION
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Back plate
2.2.2 Mounting B31
B31 consists of three parts. These are provided as a whole. Before mounting the back plate to a wall, in
another housing, etc. the three parts have to be separated.
Dismounting cell box and / or analyzer box
•Open the rotation closures
•Remove the cell box and analyzer box by pulling them gently forward. These boxes are clamped
by means of a connector on the back plate
Dismounting cell box and analyzer box
Wall mount
•In the back plate there are 4 mounting holes, see below for dimensions

B30 Series –Concentration Meter B31
INSTALLATION
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Dimensions Mounting holes on the back plate
•Mount the back plate on a wall, another housing, etc. with 4 pieces M5 hexagon socket head cap
screws (or similar screw size)
Mounting cell box and / or analyzer box
•Gently place the box(es) on the connector.
Using force to mount the box on the connector will damage the connector beyond repair.
•Close the rotation closures
2.2.3 Connecting process tube / pipe
Only use Ø12 mm tube / pipe, otherwise the process connector will be damaged.
•Connect the input on the bottom of the cell box and the output on the right side of the cell box
CAUTION:
CAUTION:

B30 Series –Concentration Meter B31
INSTALLATION
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2.3 Electrical connections B31
The main electrical parts, which are used in all models are called the 9D-series. Specific electrical parts for
a specific model are B31 parts.
2.3.1 Power supply
Input voltage 18 - 30 V DC
Maximum Input Power 8 W
Admissible ripple voltage USS < 1V [<100Hz]
USS < 10mV [100Hz . . 10kHz]
2.3.2 Power Cable and Gland
Included
•Cable gland 3 - 10 mm [cable outer diameter]
Not included
•2 Wire Cable + , - [24V nominal]
oConductor cross section 0.5 . . 2.5 mm² [flexible wire, with plastic sleeved ferrule]
oLength [preferred] <= 10m [@ 0.50 mm² / 20 AWG]
oLength [3% cable losses] 33 m [@ 0,50 mm² / 20 AWG]
49 m [@ 0,75 mm² / 18 AWG]
66 m [@ 1,0 mm² / 17 AWG]
98 m [@ 1,5 mm² / 15 AWG]
164 m [@ 2,5 mm² / 13 AWG]
2.3.3 RS232 output and Gland
Included
•Cable gland 3 - 10 mm [cable outer diameter]
Not included
•Cable for RS232
•Maximum cable length: 15 m (depending on cable type used)

B30 Series –Concentration Meter B31
INSTALLATION
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2.3.4 USB port
The USB-A connection is located on the front of the B31.
This USB-A port is used for:
•Software update
•Collecting Log data
•Diagnostics
2.3.5 Connection 24 VDC power and RS232
The connection for the power, protective earth and RS232 is located on the back plate of the B31. The
cable(s) entering the B31 back plate through (a) cable gland(s). On the back plate the cable(s) are
connected to a screw connector or to the protective earth stud. Below pictures shows how to connect the
power 24 VDC and RS232.
Back plate whole assembly
Fuse specification:
•Blow Characteristic: Fast Acting
•Fuse Current: 630mA
•Fuse Size: 5mm x 20mm
•Voltage Rating VAC: 250V
24 VDC
and
RS232
Fuse

B30 Series –Concentration Meter B31
INSTALLATION
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Back plate Power and RS232 connector
•PWR+: +24 VDC
•PWR-: 0 VDC
•PE: Protective Earth
•RS232_Tx: RS232 (Tx)
•RS232_GND: RS232 (GND)
•RS232_Rx: RS232 (Rx)
NOTE:
The text HART+, HART- and NC is used for other models.
Protective earth:
Connect protective earth (PE) to the stud on the upper right corner.
It is the customers responsibility to connect the protective earth to the stud from outside the analyzer.
Power (24VDC), PE and RS232 connected

B30 Series –Concentration Meter B31
INSTALLATION
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2.3.6 RS232 (Modbus RTU protocol)
The intention of this chapter is to give a short explanation of the use of data communication using
MODBUS.
Also to provide the customer connection scheme on how to connect the systems and with which cable
numbers.
Relevant measuring data can be retrieved from the Analyzer. The analyzer communicates with MODBUS
to a PLC or other MODBUS master.
Standard:
•MODBUS communication is possible by connecting a PLC directly to the Rhosonics Analyzer via
RS232.
2.3.6.1 General remarks
The PLC has to be configured as Master (Client - asks) by the customer. The Rhosonics Analyzer is
configured as Slave (Server - answers) at the factory.
No matter what PLC brand is used, to set up the communication protocol /cabling/settings etc. is always
part of the work.
2.3.7 MODBUS (Slave) - PLC (Master)
Communication via MODBUS is a standard feature. No additional hardware is needed except for a cable
between the Rhosonics unit and the PLC. The following sections show the wiring for RS-232.
2.3.7.1 RS-232 wiring: Modbus RTU Slave to User System
▲Turn Off the power supply when you set up the unit, connect new cables or perform maintenance or
inspections. Otherwise, electrical shock or damage may occur.
▲Never touch any terminals while the power is on. Otherwise, electric shock may occur.
▲Never bundle control cables nor input/output cables with high-voltage and large-current carrying cables
such as power supply cables.
Keep these cables at least 200 mm away from the high-voltage and large-current carrying cables.
Otherwise, malfunction may occur due to noise.
Rhosonics analyzer
Signal direction
User system
Pin
RS-232 TX
→
Pin
RS-232 RX
Pin
RS-232 RX

Pin
RS-232 TX
Pin
RS-232 GND
→
Pin
RS-232 GND

B30 Series –Concentration Meter B31
INSTALLATION
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2.3.7.2 Settings Modbus RTU Slave
2.3.7.3 MODBUS readable and writable data tables
Modbus
Address
Value
remark
4500
Concentration 1
Read as Float.
4502
Concentration 2
Read as Float.
4504
Soundspeed
Read as Float.
4506
Temperature
Read as Float.
4508
SG * 1000
Read as Float. Not applicable
4510
Acoustic impedance
Read as Float. Not applicable
4512
Solids
Read as Float. Not applicable
4514
PLE
Read as Float.
4516
Conductivity
Read as Float.
4518 -
4519
Not implemented
Not Implemented.
4520
Date
Read as 3 words.
4523
Time
Read as 3 words.
4526
Status / Error
Read as integer (1 word)
4527 -
4529
Not implemented
Not Implemented.
4530
External Input
Read/write as Float.
4532
Hold
Read/write as word.
4539 -
4632
Not implemented
Not Implemented.
4633
Power IE
Read as Float.
4635
Time Of Flight IE
Read as Float.
4637
Power LE
Read as Float.
4639
Time Of Flight LE
Read as Float.
4641
Power RE
Read as Float. Not applicable
4643
Time Of Flight RE
Read as Float. Not applicable
4645
Temperature
Read as Float.
Standard
Baud Rate
57600 bps
Start Bit
1
Data bits
8
Parity
EVEN
Flow control
NONE
Stop Bit
1
Scan rate
500 ms
Time out
500 ms
Device Address
1
Data type
4 (holding registers)

B30 Series –Concentration Meter B31
INSTALLATION
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2.3.8 ATTACHMENT A: INTERPRET the Input Data
In the PLC, some data arrangement has to be done to get the proper floating point representation.
A floating point has the size of a Double Word, that is 2 WORDs or 4 Bytes.
The high byte from word 1 will be send first after that the low byte from word 1.
Subsequently the high byte from WORD 2 will be send and after that the low byte from WORD 2.
To do in the PLC: - define the first byte of a word as high byte
- swap byte 1 and 2 from place
- make use of a library function to convert: bin to float
2.3.8.1 Converting a 32 bit Binary to Floating Point Number
2.3.8.2 Measuring data on a serial data cable with an oscilloscope
Number = (1+m) * 2 (e-bias)
2-1
23 20 19 16 15 12 11 8 7 4 331 28 27 24
0 1 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 1 1 1 1 1 1 0 1 1 1 0
0
0
2726252423222120
(bias = 127)
e = 128
Number = (1 + 0,5707964897) * 2 (128-127)
= (1,5707964897) * 2 (1)
= 3,141592979
WORD 2
(only WORD 2)Number = (1 + 0,5703125) * 2 (128-127)
= (1,5703125) * 2 (1)
= 3,140625
exponent: e (8 bit) mantissa: m (23 bit)
m = 0,5707964897
WORD 1
BYTE 2 (Low Byte Word 1)BYTE 1 (High Byte Word 1)BYTE 4 (Low Byte Word 2)BYTE 3 (High Byte Word 2)
+/- 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-10 2-11 2-12 2-13 2-14 2-15 2-16 2-17 2-18 2-19 2-20 2-21 2-22 2-23 2-24
BYTE 1
BYTE 2
BYTE 3
BYTE 4
BYTE 5
BYTE 6
BYTE 7
BYTE 8
4500
4501
4502
4503
time_0
time_n
/ High Byte WORD 1
DOUBLE
WORD
/ Low Byte WORD 1
/ High Byte WORD 2
/ Low Byte WORD 2
/ High Byte WORD 1
/ Low Byte WORD 1
/ High Byte WORD 2
/ Low Byte WORD 2
DOUBLE
WORD
Counting back e.g. 21,78 dB probe attenuation
(1+m) have to be between 1. . . 2:
here, divide 4x by two gives 1,36125, so m = 0,36125
e –bias = e –127 = 4 so e = 131
divide 21,78 for a certain (e-bias) times by 2
determine the m-bits with the excel sheet BIN2FLOAT
sign
sign = 0 = plus
sign = 1 = minus
BYTE 3 BYTE 4BYTE 1 BYTE 2
WORD 1 WORD 2
Time 0 starts left: BIT 7 of BYTE 1 from WORD 1 is send first
0 1 1 1 0 0 0 0
b0b7 b3b4 b2 b1b6 b5
b7 b6 b5 b4 b3 b2 b1 b0
0 0 1 1 1 1 0 1
b0b7 b3b4 b2 b1b6 b5
b15 b14 b13 b12 b11 b10 b9 b8
1 0 1 0 1 1 1 0
b0b7 b3b4 b2 b1b6 b5
b23 b22 b21 b20 b19 b18 b17 b16
b0
0 1 0 0 0 0 0 1
b7 b3b4
b31
b6 b5 b2 b1
b30 b29 b28 b27 b26 b25 b24
trigger on byte 3 and 4: ‘0100 0001 1010 1110’ or,
trigger on byte 3 only: ‘0100 0001 XXXX XXXX’

B30 Series –Concentration Meter B31
INSTALLATION
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2.3.9 Connection USB-port to a PC
Procedure for connecting the analyzer to a PC using the USB-port on the front
•Connect USB-port to the service PC (use USB-A male to male cable)
•To avoid communication problems it is recommended to put the device into the write protect
mode. This is set via the display on the sensor.
•Navigate to Check Function on the analyzer
•Access code: 1802 necessary
•Set Check Function to On, screen becomes orange
Result of Check Function set to On
•Go to the Device Manager on the PC.
•AT91 is now present at COM-port (PC)
Device manager.
AT91 USB on COM-port number 5 (COM5)

B30 Series –Concentration Meter B31
INSTALLATION
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•Start-up Rhosonics_SA _9D_##_##.exe
•Connection is made between sensor and service program. Whenever the green light is on and the
echo is visible between the red bars.

B30 Series –Concentration Meter B31
OPERATION
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3. Operation
3.1 Introduction
The Operations for the analyzer can be divided in 2 options each with its own user interface:
•Operations on the LCD screen, see chapter 3.2
•Operations through the USB-port, see chapter 3.3
The choice for each user interface is dependent on the type of user.
Setup is as follows:
Operating overview with:type of user interface, type of user and access level

B30 Series –Concentration Meter B31
OPERATION
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3.1.1 Functionality per user interface
Each User Interface has a different set of functions. They are categorized based on access level and
accessibility of each type of user interface.
Functionality
Button /
LCD
USB stick
USB *
interface
Measured values digital
✓
✓
Manually changing sensor settings
✓
Averaging outputs (decay time/damping )
✓
✓
Liquid select
✓
Loading of settings from file
✓
Loading of sensor settings
✓
✓
Loading liquid calibration
✓
Setting real time clock
✓
Backlight setting
✓
Factory calibrations
✓
Local offset and span calibrations
✓
Local calibration reset
✓
✓
NAMUR state
✓
General error code
✓
✓
Diagnostic measured values
✓
✓
Real time echo monitoring
✓
Saving log data
✓
Loading liquids
✓
Loading firmware
✓
Save settings
✓
Error log
✓
Reading version information
✓
Reading model type
✓
Set baud rate
✓
* Only for Distributors

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OPERATION
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3.2 LCD screen
3.2.1 Schedule operation LCD screen
The LCD screen in combination with the buttons support a low access level functionality.
Because of its location which is close to the process it is possible to do basic calibrations.
Since retreiving log data will go by USB stick it is possible to set time and date for time stamp values
during log, as well as setting the log interval.
A minor system status displays the most relevant error in case of measurement problems.To assure
settings can only be changed by authorized personal most menu’s are hidden behind an access level
3.2.2 Convention
Icons:
•1 Current access level
•Unlocked (Local access)
•Locked (Remote access)
•Warning (value out of range)
•Device is in maintenance / Check function is on
•Maintenance required
•Failure
Buttons below screen:
•First button: / Go right / Go up
•Second button: Go down
•Third button: Accept or Main menu
•Fourth button: Back / Page level higher (see schedule 3.2.1)
If the button colors are reversed (only first and second button) means that this button is used last.