Setup Menu; Alarms - Hach EC1000 Instruction Manual

2.2 Setup Menu

2.2.1 Alarms

Two independent programmable setpoint alarms are provided. Each alarm can be set to
operate on pH, mV, or temperature setpoints, and may be programmable to be either a high
alarm or a low alarm. When the programmed setpoints are exceeded, the alarm LED turns
on. The alarm relay actuates when external power is brought to the relays. The instrument
also features programmable alarm hysteresis and delay time. Hysteresis is the difference
between the alarm turn on and turn off values. The delay time provides a delay, from the
time the alarm setpoint is exceeded, before the alarm is actuated.
The delay time is adjustable from 0 to 30 seconds.
To check or program the alarm settings:
Press to call up the SETUP menu options.
SETUP
Press to move into the
ENTER
Press to move into the
ENTER
The MODE menu is PH high/low, mV high/low, or temperature high/low.
Press to select the MODE menu.
ENTER
PH HI is the default. Scroll through the MODE menu by pressing the
key.
UP ARROW
When the desired mode is displayed, press
to the next ALARM1 submenu.
Press . The current SET PoiNT value appears on the display.
ENTER
To change the value, move the flashing display by pressing the
and increase or decrease the value by pressing the
key.
UP ARROW
When the value is set, press
Press . The current HYSTeresis appears on the display.
ENTER
The hysteresis is adjustable from 0.01 to 2.0 pH, 0.1 to 100 mV, or 0.1 to 2.0 °C.
To change the value, move the flashing display by pressing the
increase or decrease the value by pressing the
Press .
ENTER
Press . The current DeLaY TIME will appear on the display. The ALARM1 delay
ENTER
time is adjustable from 0 to 30 seconds. Reset the delay time by pressing the
key and increase or decrease the value by pressing the
ARROW
the key.
UP ARROW
submenu.
ALARMS
submenu.
ALARM1
to lock in the chosen MODE and move
ENTER
DOWN ARROW
.
ENTER
or
DOWN
28
DOWN ARROW
key
RIGHT ARROW
key or the
key and
RIGHT ARROW
key.
UP ARROW
RIGHT
key or
DOWN ARROW
or