Sofraser 9200 User manual

Original version

REF.: 380-5

200

Viscosity and temperature

transmitter

Technical Manual

Technical Manual 9200

REF: 380/5 3

IMPORTANT

THE OFFSET ADJUSTMENT IN THE AIR

MUST BE THE FIRST TASK COMPLETED.

Offset adjustment procedure is detailed in § 3.3.

1. CLEAN AND DRY THE SENSOR ROD.

2. BE SURE THE PROCESS IS EMPTY. THE ROD MUST BE VIBRATING IN THE AIR.

3. INSTALL THE SENSOR ON THE PROCESS AND FIX IT WITH ITS 4 SCREWS.

4. POWER ON THE DEVICE, WAIT 15 MINUTES.

5. PRESS THE “HOME” BUTTON UNTIL REACHING THE OFFSET MENU AND PRESS

“OK”.

6. FOLLOW THE INSTRUCTIONS DISPLAYED ON THE ELECTRONICS SCREEN.

7. PRESS “OK” TO ADJUST THE OFFSET. IT MEANS THE RAW SIGNAL IS SHIFTED TO

THE VOLTAGE REFERENCE DEFINED IN THE FACTORY CALIBRATION STAGE.

THE NEW OFFSET VALUE IS THEN DISPLAYED.

Technical Manual 9200

REF: 380/5 4

Table of contents

1. TRANSMITTER PRINCIPLE ................................................................................................. 5

2. PROCESSOR TECHNICAL CHARACTERISTICS .................................................................. 6

2.1 Electronic device size ............................................................................................................................................ 6

2.2 Main features .............................................................................................................................................................. 7

2.2.1

Best performance conditions .................................................................................................. 7

2.2.2

Display ..................................................................................................................................................... 7

2.3 Connections ................................................................................................................................................................ 7

2.3.1

Top connector .................................................................................................................................... 8

2.3.2

Bottom connector ........................................................................................................................... 9

3. THE 9200 OPERATING FUNCTIONS ................................................................................ 10

3.1 Start and menus ..................................................................................................................................................... 10

3.2 Raw values .................................................................................................................................................................... 11

3.3 Offset ................................................................................................................................................................................ 11

3.4 Viscosity and temperature units .................................................................................................................. 12

3.5 Check 4-20 mA ......................................................................................................................................................... 12

3.6 Correlation ................................................................................................................................................................... 13

3.7 Enable or disable temperature ..................................................................................................................... 14

4. RS485 FRAME PROTOCOL ............................................................................................... 15

5. SOFRASER INTERFACE SOFTWARE ................................................................................ 17

5.1 The main features ................................................................................................................................................... 17

5.2 The user-friendly interface ................................................................................................................................ 17

6. TROUBLESHOOTING ........................................................................................................ 18

Technical Manual 9200

REF: 380/5 5

1. Transmitter principle

The measuring chain is composed of three inseparable elements: the sensor, its cable and the 9200

transducer that controls it. The sensor cannot be used with another transducer or another

cable type or length because they are all a part of the resonant loop so they are matched

together as one vibrating system.

The active part of the sensor is composed of a vibrating rod held in oscillation at resonance frequency

by driving magnets. When the rod is immersed into a viscous material, the amplitude of the

vibration is dampened. The vibration amplitude varies according to the product viscosity

where the rod is immersed.

The sensor receiving coil detects the response and the signal is converted to a viscosity value

through the electronic device. The factory calibration is performed with standard oils.

The transducer acquires the coils’ amplitudes and frequency and generates various signals. These

signals represent the properties being measured. It is also in charge of powering the whole

system. It gives viscosity and temperature information through the serial communication and

displays it. The transmitter also allows simple settings as the very important “zero in the air”

procedure.

Technical Manual 9200

REF: 380/5 6

2. Processor technical characteristics

2.1 Electronic device size

The electronic box has the purpose to be ﬁtted in a panel, close to the process line. The collar is the

only visible part, composed of a face plate and a LCD screen. It is continuously displaying the

viscosity value and, in the case there is a Pt100 probe, the temperature value.

The ID label is stick on the bottom of the box. Main information is written down. There is also another

sticker on the back panel to remind how to connect the sensor, the outputs and the power

supply (see §2.3).

It has an IP20 rating. Its weight is about 240 g.

Hereunder are the different views and the associated dimensions (in mm) of the device.

Collar (visible part): 48 * 96 * 10

Fitted part: 43 * 90 * 115

Panel cut out: 44 * 91

43 mm

115 mm

96 mm

Left side

96 mm

48 mm

124 mm

Front panel

Technical Manual 9200

REF: 380/5 7

2.2 Main features

2.2.1

Best performance conditions

The processor must be connected to a 24 VDC (± 2.4 V) stabilized and ﬁltered power supply.

It is very important to respect the polarity.

The operating temperature for this electronics is up to 40 °C.

It is recommended to install this electronics in a safe place with a stable temperature and non-

condensing atmosphere.

To ensure the proper behavior of the two 4-20 mA current outputs, it is highly recommended to

connect them to a PLC or a regulator through a galvanic isolated device (one for each current

output).

Never connect the 4/20 mA outputs to a power supply, an active PLC input or tester

2.2.2

Display

The 9200 transmitter device has a 2-line alphanumeric backlighting LCD screen. The effective

dimensions of this screen are 64 mm * 15 mm. One line can display 16 digits. This screen is

showing the different menus with the help of the 2-button face plate.

2.3 Connections

All the connections to the electronic device are made through the back panel. There are two 10-pin

green connectors plugged to the board.

As a convention, we refer to the bottom and top connectors as the terminal block screws are headed

up.

Picture 1: back panel

Technical Manual 9200

REF: 380/5 8

2.3.1

Top connector

Connections for the top connector (not cabled in our picture example) have to be made by the user

scrupulously respecting the following indications.

The plugging scheme of the top connector is as follows:

Pins 1 to 4 are 4/20 mA outputs for Viscosity and Temperature. They have been calibrated according

to customer's request. They must be connected to installations with an impedance of not more

than 350. It is recommended to use armed cables for these outputs and the shield should be

pressed in the earth terminal screw. They are already powered internally.

When the measured value is out of the conﬁgured range of the 4/20 output (below minimum value

or over maximum value), the output passes in default mode and is forced to 22 mA.

Never connect the 4/20 mA outputs to a power supply, an active PLC input or tester

Pins 5 and 6 are used to connect the RS-485 cable in order to communicate with an external

console.

Pins 7 and 8 are for the 24 VDC (± 2.4 V) stabilized and ﬁltered power supply.

Caution: watch out the polarity

Pins 9 and 10 are not used.

Caution: Do not plug anything.

Interface to the outside world

(Outputs and power supply)

Links to the MIVI sensor and earth

grounding

Technical Manual 9200

REF: 380/5 9

2.3.2

Bottom connector

The plugging scheme of the bottom connector is as follows:

Pins 11 to 14 make the connection between the electronic board and the MIVI sensor itself. This is

how the driving signal is generated and how the receiving signal is measured.

Pins 15 to 17 are used to connect the Pt100 probe wires.

Pin 18 is the Earth connection.

* The white wire of the MIVI is only present for intrinsically safe version of the sensor. For other

conﬁgurations, this white wire is cut and only the metal wire is connected to Pin 18.

Pins 19 and 20 are not used. By default, a wire makes the shortcut between the two pins (see picture

2).

Picture 2.1: bottom connector

When the cable is short and the

sensor is correctly earth grounded

Picture 2.2: bottom connector

It may be necessary to earth ground the

transmitter directly on PIN18

Technical Manual 9200

REF: 380/5 10

3. The 9200 operating functions

3.1 Start and menus

After turning on the device, the LCD screen switches on and it will take a few seconds to display the

measured viscosity and temperature values.

This is the main screen, the one displayed in working mode.

By pressing the “Home” button (small house icon), we get access to the seven different menus

proposed by the processor. We can browse from one to the other with the help of Home. To

enter into a menu, one must press OK.

If you keep the Home button pressed during 3 seconds you will automatically move back to the

main screen of the 9200 displaying the viscosity and the temperature.

Visc: 105.3 mPa.s

Temp: 25.36 °C

Temperature Unit

°C

Viscosity Unit

Correlation

None

Raw values Check 4-20mA

Offset



Temperature

Enabled



Table of contents

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