Etatron eSelect M 1 CD COOL, Инструкция по эксплуатации и техническому обслуживанию

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ENGLISH 31
S E T P O I N T 1
S E T P OI N T 1 M E N U S E L E C T I O N S E T T I N G S
◄
Menu Selection
Calibration
►
Press O K / M E N U to confirm the selection and go to the next sub-menu
STANDARD OPERATIONAL CONDUCTIVITY RANGES
- K1 2000 µS � 20.00 mS (20,000 μS): it can measure up to 1000 µS but the display will be less accurate.
- K5 up to 2,000 µS
ON REQUEST other measurement ranges are possible only after approval by ETATRON D.S.
> K0.8 up to 100 mS (100,000 µS) : via ETATRON probe with graphite electrodes or other brands withequivalent models.
> K10 up to 200 µS with probe suitable to measure this range.
IMPORTANT NOTES:
- if NOT using a temperature sensor, go to Expert menu settings > Temperature > M anual and change the required temperature
value;
- when calibrating the sensor ensure the probe electrodes do not touch any surface except the solution.
- ensure the sensor is securely positioned in the solution’s container;
- wait the time required for the calibration measurement to be stable. During calibration, the measurement values always tend to have a small
fluctuation but this does not affect calibration.
A message is displayed before calibration:
It is recommended to make a simple solutionthat is consistent with the CE value required in the system (normally the setpoint); use a
portable EC instrument or sample solutions having known values to ensure the conductivity level matches the requirements. Use a
conductivity sensor with maximum cable length 3/4 m.
MEASUREMENT
* When calibration starts, the display shows random values
Calibration
Immerse the EC probe in the prepared solution, wait for the value to stabilise. To change the value, press
1 µ S*
O K / M E N U , press ◄► until reaching the value of the prepared buffer solution , press
O K / M E N U to confirm.
Press
Press
to go back
After calibration wait 10 minutes for the measurement to stabilise.
The instrument adapts the measurements and display resolution based on the type of probe in use.
In case the user should wish to change the cell Constant Factor EC K, even during operations:
BASIC menu > >
from EXPERT menu go into >
> > >
> >
The instrument features two outputs with signal in current in mA. The 4-20mA signal follows the settings of the K Factor cell constant
selected previously. The mA output provides two operating modes to be selected according to the system’s operational requirements:
◄
Menu Selection
4 - 20 m A1
►◄
Menu Selection
4 - 20 m A2
►
Press
The 4-20mA1 / 4-20mA2 outputs follow the settings selected in the menu K C o n s t a n t o f E C p r o b e a n d S e t p o i n t .
to go into mA mode.
ANALOGUE 4-20MA OUTPUTS
ESC
ESC
ESC to M E N U S E L E C T I O N
to go back to the M E A S U R E M E N T D I S P L A Y
O K / M E N U
C o n s t . K EC p r o b e M E N U S E L E C T I O N
C o n s t . K EC E X P E R T M E N U