30
• When an alarm condition is met, the
ALARM LED turns on and the corre-
sponding relays closes.
RECORDER OUTPUT SPAN SETTING
The selected recorder output voltage range or the 4-20 mA
current output may be associated with any Chlorine concen-
tration in the 0 to 5 mg/L range.
For example, if the 0.0 to 1.0 V recorder output has been
selected, the operator can select 0.0 V to correspond to a
concentration of 3.0 mg/L (Recorder Minimum setting) and
1.0 V to correspond to a concentration of 4.5 mg/L (Re-
corder Maximum setting). The full scale span of the recorder
would then be 1.5 mg/L, yielding a magnified view of the 3.0
to 4.5 mg/L concentration range on the recorder.
To set the lower limit of the recorder output
• Press REC.MIN. Display will show the previously set mini-
mum recorder level (e.g. 1.08 mg/L). The most signifi-
cant digit will be blinking.
• Using the and keys set the new minimum recorder
level (e.g. 3.00 mg/L).
• Press REC.MIN a second time. The display will blink the
new setpoint for the low end of the recorder output.
REC.
MIN
REC.
MIN
