ASTLES SENSOLUTION C800 Manual de usuario
C800 Analyser
Operating Manual
902857-A - C800 Analyser Operating Manual.docx
Astles Control Systems Ltd.
B3 Regent Park, Summerleys Road, Princes Risborough, Bucks. HP27 9LE.
Installation and Operating Instructions
C800 Analyser Operating Manual
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Contents
1. Introduction ........................................................................................................................................3
2. Mechanical Installation.......................................................................................................................4
2.1. Open Installation..........................................................................................................................4
2.2. Sighted Enclosure Installation......................................................................................................5
3. Electrical Installation...........................................................................................................................6
3.1. Power supply Requirements........................................................................................................6
3.2. 24V Supply Wiring........................................................................................................................6
3.2.1. Connection via an M12 Socket..............................................................................................6
3.2.3. Direct Connection to Analyser..............................................................................................7
3.3. Sensor Wiring...............................................................................................................................7
4. Display and Keypad Functions ............................................................................................................8
4.1. Display..........................................................................................................................................8
4.2. Keypad Description......................................................................................................................8
5. Pin Code ..............................................................................................................................................9
6. Hold Mode ..........................................................................................................................................9
7. Basic Setup........................................................................................................................................10
7.1. Range Setup ...............................................................................................................................10
8. Calibration.........................................................................................................................................11
8.1. Conductivity Calibration.............................................................................................................11
8.2. Temperature Calibration............................................................................................................12
9. Main Menu........................................................................................................................................14
C800 Analyser Operating Manual
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1. Introduction
Thank you for selecting a C800 conductivity Analyser. The analyser converts an input from an
electrochemical sensor to a 4-20mA signal for a PLC or chart recorder. The C800 is a microprocessor-
based instrument that is designed to be sturdy and user-friendly.
This analyser has many user-friendly features –all of which are completely accessible through the
water-resistant membrane keypad.
Please read this manual thoroughly before operating your analyser.
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2. Mechanical Installation
The C800 may be supplied in an aluminium enclosure connected to a
Model 300 or as a stand-alone unit.
To install the sensor:
•Cut a 75mm diameter hole in the tank lid.
•Insert the Model 300 through the hole and allow the probe to
rest on the flange.
•Loosen the grub screw in the flange to adjust the depth of the
probe.
There is normally no need to bolt the flange down.
2.1. Open Installation
If the analyser is to be mounted separately, use an Astles Control Systems universal mounting kit
(500/9501) to fix it to a pipe or wall. To attach the analyser to the mounting kit use M6 bolts,
washers, and nuts.
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2.2. Sighted Enclosure Installation
To install the analyser into a sighted enclosure, the glands must be removed before passing the box
through the window. Ensure the screen gasket is in place. Secure the analyser to the front of the
enclosure using two screws either side of the analyser, shown below.
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3. Electrical Installation
3.1. Power supply Requirements
The C800 requires a 24V ±10% dc supply. Other devices such as chart recorders and PLCs may be
connected in series. Use screened cable if the 4-20mA conductivity signal is required.
3.2. 24V Supply Wiring
3.2.1. Connection via an M12 Socket
To connect the analyser via an M12 socket, wire it as shown:
All three wires from the M12 socket must pass through a gland in the bottom of the analyser.
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3.2.3. Direct Connection to Analyser
To wire directly to an external power source, wire +24V into the +ve terminal and 0V to the -ve
terminal. Use 2-core screened cable, such as Belden 8760, through a gland in the bottom of the
analyser. Only connect the cable screen at the power source, not in the analyser.
3.3. Sensor Wiring
Connect a Model 300 conductivity sensor through a gland in the bottom of the analyser.
Connection
Terminal
Model 300 Wire Colour
Conductivity Signal
COND 1
Red
Conductivity Signal
COND 2
Black
Pt100 Temperature Signal
RTD SENSE
Green
Pt100 Temperature Reference
RTD RETURN
White
Pt100 Wire Compensation (Optional)
RTD COMP
N/A
If you are using a 3-wire temperature compensator, connect the cable compensation wire to RTD
COMP and remove jumper J1.
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4. Display and Keypad Functions
4.1. Display
1. Measurement mode indicator
2. Measurement reading
3. Hold mode indicator
4. Automatic Temperature Compensator indicator
5. Temperature Reading
4.2. Keypad Description
The C800 analyser has 6 buttons on the keypad allowing for easy and quick operation of the
analyser.
1. CAL: Takes you directly to the calibration menu. See section 8.
2. (Up-Arrow): Allows you to scroll through various menus or increment calibration values.
3. HOLD: Will enable the hold function. See section 6.
1
2
3
4
5
1
2
3
4
5
6
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4. (Back): Navigates to the previous screen. Hold the button for 2 seconds to return to the
primary display.
5. (Down-Arrow): Allows you to scroll through various menus or decrease calibration values.
6. (Enter): Will confirm selections in menus and calibration values. Pressing this button
when on the primary display will navigate to the main menu.
5. Pin Code
The C800 analyser pin code is “2000”. This code
is required to access the instrument functions.
6. Hold Mode
The hold mode on the C800 analyser will fix the output current at the level it was at when the button
was pressed.
To initiate the hold mode either press the HOLD button or navigate to the HOLD menu and enable it
there. There is a 20 minute timer which can be restarted by pressing the HOLD button twice.
The displayed measurement will be unaffected by the hold mode.
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7. Basic Setup
7.1. Range Setup
Navigate to the RANGE menu to set an appropriate conductivity range for the solution you are
measuring.
Navigate to the DSL-DSH menu to specify a custom range for the 4-20 mA current output.
On an aluminium beverage can line, the typical ranges for stages 3 & 5 are 0 –2000 µS/cm, and for
stages 6 & 7 are 0.0 –200.0 µS/cm.
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