Evoqua WALLACE & TIERNAN DEOX/2000, Инструкция по эксплуатации

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W3T331759 / WT.050.585.003.UE.IM.1014 36
MICRO/2000® AND DEOX/2000® MODULE
The “Calibration” and “Mode” menus are opened with the corresponding
soft keys directly from the basic display. All other menus can be accessed
with the “MENU” softkey.
4.4 Calibration
CAUTION: The electrode fingers or membranes on the sensors are
extremely sensitive. Do not touch, soil or damage them.
NOTE: To prevent loss of control during calibration, the “Hold function” in
the system/common menu should be set to “On” (mA-outputs and
controller outputs then remain constant during calibration). To determine
how often you must calibrate, refer to section 5.1, Maintenance Schedules.
4.4.1 Temperature calibration
1. Starting from the basic display in the main menu select the
“Calibration” menu.
2. Select the “Temperature” menu item The “Calib. temperature”
window appears on the graphic display.
3. Select “Cal. temperature”.
4. Perform comparative temperature measurement
5. Open the menu with the “Enter” key and enter the ascertained value
with the arrow keys.
6. Save the value by pressing the "Enter" key.
NOTE: °C or °F can be selected in the “Temp. unit” menu. The required
temperature input can be selected or switched off in the "Temp. sensor" menu.
4.4.2 MICRO/2000® calibration
Before beginning calibration, choose the method of calibration (1 point
or 2 point).
4.4.2.1 One point calibration:
Grab Sample Method
1. Select the 1 Point calibration method in the calibration menu.
2. Once the reading on the system is stable, collect a sample from the
water line.
3. Measure the residual contained in this sample.
4. Enter this value as the “SPAN” value.