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O&M Manual

Rev-H (8/11)

Part 4 – Start-Up

Prior to operation, recheck electrical connections to be sure everything is in accordance with

Figure 11 or 11 in the previous section. If everything is in order, power may be applied. When power is

turned on, the display will come up with a program and version number, which will remain on the display

for a few seconds. The display will then change to a display of the pH value and an indication of the

status of control relays. This is the main operating display, and should look like the display below:

D1 XXXX NTU oA oB

MAIN DISPLAY

The XXXX portion will be numbers and there will be a decimal point in a location determined by

the range of operation. The initial values could be almost anything, depending on whether the sensor has

been connected and what the condition of the sensor is. The values are not important at this point. The

next portion of the display indicates control relay status. The letters A and B refer to control relays A and

B as marked on the back of the monitor. An open square (o) indicates a deactivated relay while a solid

square (n) indicates an activated relay. More information on the control relays is provided in a later

section of this manual.

Beyond the main display, a series of alternate displays are available to the operator. These

displays may be selected by pressing the MODE key on the front panel. It is a good idea to step through

the displays to become familiar with each one. Many of these alternate displays serve as a starting point

for programming functions described later in this manual. The alternate display sequence is as follows:

D2 XXXX NTU

TURBIDITY DISPLAY WITHOUT ALARMS

D3 CHECK S.: XX.X%

CHECK SENSOR SIGNAL INDICATOR

D4 SA XXXX NTU oL

RELAY A SETPOINT AND FUNCTION

D5 SB XXXX NTU oH

RELAY B SETPOINT AND FUNCTION

D6 AL XXXX/XXXX NTU

ALARM RELAY SETPOINTS

D7 CLEANING OFF

SENSOR CLEANING STATUS

D8 01: XX.X mA / XXX

ANALOG OUTPUT INDICATION

D9 CONFIGURATION

ACCESS TO SETUP ROUTINES

D10 TU7685 R2.10

PROGRAM AND RELEASE NUMBER

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 31 32

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Analytical Technology A15 Especificaciones Pagina 19