CS Instruments FO 510 User manual

EN
FO510 V1.00 1
FO 510
The CS INSTRUMENTS Moisture in Oil Transmitter FO510 with two
analog outputs for different measured variables and RS 485 Modbus interface as
standard, enables reliable and long-term stable measurement in technical oils.
Designed for measurements such as moisture content in transformer oil, motor oil,
lubricating oil, hydraulic oil and diesel fuels. In addition to a highly accurate
measurement of water activity (aw) as well as temperature (T), the FO 510 calculates
the absolute water content (x) in PPM.
Teile-Nr.:02000xxxx

EN
FO510 V1.00 2
Inhalt
1Foreword ............................................................................................................................3
2Intended use........................................................................................................................3
3Safety instructions..............................................................................................................4
4Description .........................................................................................................................4
5Technical data ....................................................................................................................6
6Abmessungen / elektr. Anschluss.......................................................................................7
7Installationshinweise..........................................................................................................8
8Modbus...............................................................................................................................9
8.1 Register Mapping der Werte-Register:........................................................................9
8.2 Geräte Einstellungs-Register.....................................................................................10
Modbus Settings (2001…2006) ......................................................................................10
8.3 Analog Scaling Settings (2007…2011)...................................................................10
9Kalibrierung / Justage.......................................................................................................11
10 Garantie......................................................................Fehler! Textmarke nicht definiert.

FO510 V1.00 3
1 Foreword
Dear Customer,
Thank you for choosing the FO 510. Please read these installation and operating instructions
carefully before mounting and commissioning and follow our instructions. The FO 510 will only
function properly and operate safely if the instructions and notes described are strictly
observed.ten Water content (x) in PPM.
2 Intended use
The FO510 is intended for measuring moisture in technical oils.
A check whether the device is suitable for the selected application must be carried out by the
user. It must be ensured that the medium is compatible with the wetted parts. The technical
data listed in the data sheet are binding.
Improper handling or operation outside the technical specifications is not permitted. Claims of
any kind due to improper use are excluded.
Translated with www.DeepL.com/Translator (free version)

FO510 V1.00 4
3 Safety instructions
Before installing the FO 510, read these operating instructions
carefully. Failure to follow the instructions in this manual, in particular
the safety instructions, may result in danger to personnel, equipment
and installations..
•The product may only be used and applied in accordance with its intended use.
•Installation of the dew point sensor (oil humidity sensor) and maintenance work
may only be carried out by trained personnel.
•Installation and service work must be carried out in a de-energized state.
•The applicable safety regulations must be observed!
•Attention: max. pressure range 300 bar must not be exceeded.
•Observe the measuring ranges of the sensor!
Overheating will destroy the sensors.
•Observe the permissible storage and transport temperature as well as the
permissible operating temperature (e.g. protect the measuring device from
direct sunlight).
•Opening the device, improper handling or use of force will void the warranty!
•.
4 Description
The FO 510 enables reliable and long-term stable moisture measurement in technic
Moisture in oil can be measured and expressed in two different ways: as an absolute value
or as a relative value.
•Relative moisture is expressed by water activity (aw). Water activity is a relative
measure of moisture in oil and describes the ratio between the actual amount of
dissolved water in the oil and the maximum amount possible at a given temperature.
An aw value of 0 means that there is no water in the oil, while an aw value of 1
indicates complete saturation. Water activity is independent of the type of oil.
•he absolute moisture content is called water content (x) and expresses the actual
amount of water in the oil, whether it is dissolved, emulsified or separated. Water
content is measured in units such as ppm (parts per million) or mg of water per kg of
oil and is independent of oil temperature. To assess the degree of saturation of the
oil, the water content x must be considered in conjunction with the temperature (T).
The calculation of the water content x from the measured values for aw and T is oil-specific
and requires special parameters for the respective oil. CS INSTRUMENTS offers the
possibility to adapt these oil specific parameters for different oil types.
!

FO510 V1.00 5
The required parameters can either be specified when ordering the FO 510 or subsequently
integrated in the FO 510 using the CS Service software.
Advantages of the FO 510:
•Fast response time
•Highly accurate measurement of water activity (aw), as well as process temperature.
Measurement is independent of oil type or age.
•Calculation of absolute water content (PPM) possible after input of specific oil
parameters
•Two freely configurable analog outputs as well as Modbus-RTU (RS 485) interface
available).
Programming by software.
With the CS Service Software incl. USB / Modbus adapter settings like Modbus settings can
be changed, analog output can be rescaled and measured values can be assigned.ility to
adapt these oil specific parameters for different oil types.

EN
FO510 V1.00 6
5 Technical data
Measuring range humidity -0..1 aw
Accuracy (0..0,9 aw) ±0.02 Accuracy (0..0,9 aw) bei 23°C
Accuracy (0,9..1,0 aw) typically ± 0.03 awati 23°C
Measuring range temperature: 0.. 100°C
Accuracy : ±0.3°C
Perm. oil temperature: -20..100°C
Perm. ambient temperature: -20 ..70°C
Storage temperature : -40…80 °C
Pressure range : up to 300 bar
Power suppöy : 24VDC (10...30 VDC)
Output : 2x 4..20 mA (3wire-Technology)
RS 485 (Modbus RTU)
Protection class: IP 66
Load for analogue output:: < 500 Ohm
Screw in thread: G 1/2"
Optional: NPT ½“
Material case : Zinc die casting
Wetted parts: Sensor protection Perforated cap 1.4301 (SS304)
Process connection (screw-in thread) 1.4404 (SS 316L)
Electr. connection: M12, 8-pin, A-Coding
EMC: DIN EN 61326-1

FO510 V1.00 7
6 Dimension / elektr. Connection
1
234
56
7
8
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
NC
RS485 (B)
RS485 (A)
+I
output
+I
output
-VB
NC
+VB
+VB
Positive supply voltage 24VDC (10...30 VDC) smoothed
RS485 (A)
Modbus A (+)
-VB
Negative supply voltage
RS 485
(B)
Modbus B (-)
+I
Positive 4...20 mA Signal **
NC
not connected
** Measuring value assignment for 4-20mA signal selectable
Remark: The sensor must be connected in strainless state only
M12 Connection
M12 Connector Connection diagram
Dimension
G ½“
5
46
7
1
2
38
5
+ VB
- VB
4..20mA
4..20mA
8
4
6
3
2
RS 485 A
RS 485 B

FO510 V1.00 8
7 Installationshinweise
•The direct installation of the sensor is only allowed in the unpressurized
state of the system.
•The sensor must be tightened with a torque of 25 - 30 Nm.
•Tightness of the connection must be checked and ensured.
•It is not permitted to use a sealing ring with a NPT 1/2“
Instead, use a suitable PTFE sealing tape or sealant.
Screw the sensor with the G 1/2" thread pressure-
tight into the line to be measured via a connecting
piece.
Place the sensor tip (hole cap) as deep as possible in
the oil (> 40% of the sensor tip length).
To obtain the shortest possible response time, there
should be a continuous flow of oil.

FO510 V1.00 9
8 Modbus
The dew point sensor FO 510 comes with a Modbus RTU Interface.
Before commissioning of the sensor the communication parameters
Modbus ID, Baudrate, Parity und Stop bit
must be set in order to ensure the communication with the Modbus master.
The adjustment can be done either with the CS Instruments PC service software.
Modbus communication default values:
•Modbus ID : 1 ( 1 -247)
•Baudrate: 19200 bps (1200,2400, 4800, 9600, 19200, 38400 bps)
•Parity: even (none, even, odd)
•Stoppbit: 1 1,2)
Supported are following functioncodes:
•Funktionscode 03: Read Holding Register
•Funktionscode 16: Write multiple Register
8.1 Register Mapping measuring values:
Modbus
Register
Modbus
Adresse
No.of
Byte
Data Type
Description
Defaul
t
Setting
Read
Write
Unit /Comment
1001
1000
4
Float
Temperature
R
[°C]
1003
1002
4
Float
Temperature
R
[°F]
1005
1004
4
Float
Water Activity aw
R
1007
1006
4
Float
xs PPM
R
1009
1008
4
Float
xs PPM static temperature
R
1011
1010
4
Float
relative Humidity
R
for DS400 / DS 500 / Handheld devices - Modbus Sensor Datatyp:
„Data Type R4-32“ match with „Data Type Float“

FO510 V1.00 10
8.2 Registermapping device settings
Modbus Settings (2001…2006)
Modbus
Register
Modbus
Address
No.of
Byte
Data Type
Description
Default
Setting
Read Write
Unit /Comment
2001
2000
2
UInt16
Modbus ID
1
R/W
Modbus ID 1…247
2002
2001
2
UInt16
Baudrate
4
R/W
0 = 1200
1 = 2400
2 = 4800
3 = 9600
4 = 19200
5 = 38400
2003
2002
2
UInt16
Parity
1
R/W
0 = none
1 = even
2 = odd
2004
2003
2
UInt16
Number of Stopbits
R/W
0 = 1 Stop Bit
1 = 2 Stop Bit
2005
2004
2
UInt16
Word Order
0xABCD
R/W
0xABCD = Big Endian
0xCDAB = Middle Endian
2006
2005
2
UInt16
Modbus Enabled
FA510: 1
FA515: 0
R/W
0 = Modbus disabled
1 = Modbus Enabled
8.3 Analog Scaling Settings (2007…2011)
Modbus
Register
Modbus
Address
No.of
Byte
Data Type
Description
Default
Setting
Read Write
Unit /Comment
2007
2006
4
UInt32
Output Value
4
R/W
0 = 4-20mA disabled
1 = Temperature [°C]
2 = Temperature [°F]
3 = relative Humidity [%]
4 = DewPoint [°C]
5 = DewPoint [°F]
6 = Absolute Humidity [g/m3]
7 = Absolute Humidity [mg/m3]
8 = Humidity Grade [g/kg]
9 = Vapor Ratio [ppm]
10 = SaturationVapor Pressure[hPa]
11 = Partial Vapor Pressure [hPa]
12 = Atmospheric DewPoint [°C]
13 = Atmospheric DewPoint [°F]
2009
2008
4
float
4mA Scale Low
-80
R/W
2011
2010
4
float
20mA Scale High
20
R/W
Modbus installation, Modbus settings and further information refer to the manual CS
Instruments "Modbus Installation and Operating Instructions FA 5xx sensors"

FO510 V1.00 11
9 Calibration / Adjustment
At the manufacturer
Within the scope of DIN ISO certification, we recommend having the measuring instruments
calibrated and, if necessary, adjusted by the manufacturer at regular intervals. The
calibration cycles should be based on your internal specifications. Within the scope of DIN
ISO certification, we recommend a calibration cycle of one year for the FO 510.
10 Warranty
Defects which are demonstrably due to a factory defect will of course be repaired free of
charge. The prerequisite is that you report this defect immediately upon discovery and within
the warranty period granted by us. Damage caused by improper use or by non-observance
of the operating instructions is excluded from this warranty.
The warranty is also void if the sensor has been opened - unless this is expressly described
in the operating instructions for maintenance purposes - or if serial numbers in the device
have been changed, damaged or removed..
The warranty period for FO 510 is 12 months. Unless otherwise defined, 6 months apply to
accessories. Warranty services do not cause an extension of the warranty period.
If in addition to the warranty service necessary repairs, adjustments or similar are carried out,
the warranty services are free of charge but there is a charge for other services such as
transport and packing costs. Other claims, especially those for damage occurring outside the
instrument are not included unless responsibility is legally binding.
After-sales service after the warranty time has elapsed
Of course, we are also there for you after the warranty period has expired. In case of
malfunctions, please send us your measuring device with a short description of the error.
Please also include your telephone number for any queries.

FO510 V1.00 12
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
Wir CS Instruments GmbH & Co.KG
We Gewerbehof 14, 24955 Harrislee
Erklären in alleiniger Verantwortung, dass das Produkt
Declare under our sole responsibility that the product
Feuchtesensoren FO 510
Dew point sensors FO 510
den Anforderungen folgender Richtlinien entsprechen:
We hereby declare that above mentioned components comply with requirements of the following EU directives:
Elektromagnetische Verträglichkeit
Electromagntic compatibility
2014/30/EUG
2014/30/EC
RoHS (Restriction of certain Hazardous Substances)
2011/65/EC
Angewandte harmonisierte Normen:
Harmonised standards applied:
EMV-Anforderungen
EMC requirements
EN 55011: 2011-04
EN 61326-1: 2013-07
Das Produkt ist mit dem abgebildeten Zeichen gekennzeichnet.
The product is labelled with the indicated mark.
Harrislee, den 15.09.2023

FO510 V1.00 13
Kontakt / CONTACT
CS INSTRUMENTS GmbH & Co.KG
Geschäftsstelle Süd / Sales Office South /
Zindelsteiner Str. 15
D-78052 VS-Tannheim
Tel.: [phone]
Fax: [phone]
Mail: [e-mail]
Web: http://www.cs-instruments.com
Geschäftsstelle Nord / Sales Office North
Gewerbehof 14
D-24955 Harrislee
Tel.: [phone]
Fax: [phone]
Mail: [e-mail]
Web: http://www.cs-instruments.com