GLI International Accu4, Руководство по эксплуатации

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PART THREE - OPERATION SECTION 4 - CONFIGURING THE ANALYZER
Accu4™ Low-range Turbidimeter System Rev. 2-300 46
SET TRANSFER Mode
(relay on or off)
SET ACTIVATION
(configuration values)
Normally, each CONTROL or ALARM relay is ACTIVE, re-
sponding to the measured turbidity. During calibration,
however, you can transfer (XFER) each relay to a preset
on/off state.
If you desire to set a relay on/off transfer state for a
CONTROL or ALARM relay to suit your application, follow
these steps:
1. With the screen displayed, use
Ø Ø
key
to select the “SET TRANSFER” line.
2. Press
ENTER key
to display a screen like
. Use
Ø Ø
and
× ×
keys to view both
choices (DE-ENERGIZED or ENERGIZED).
3. With the desired choice displayed, press
ENTER key
to
enter this selection.
The group of configuration settings available to a relay is
dependent on its selected function mode. Table A describes
relay configuration settings, categorized by function mode:
Table A -- RELAY CONFIGURATION SETTINGS
Setting Description
For ALARM Relay
Low Alarm Sets the value at which the relay will turn on in
response to decreasing measured value.
High Alarm Sets the value at which the relay will turn on in
response to increasing measured value.
Low
Deadband Sets the range in which the relay remains on after the
measured value increases above the low alarm value.
High
Deadband Sets the range in which the relay remains on after the
measured value decreases below the high alarm value.
Off Delay Sets a time (0-300 seconds) to delay the relay from
normally turning off.
On Delay Sets a time (0-300 seconds) to delay the relay from
normally turning on.
For CONTROL Relay
Phase A “high” phase assigns the relay setpoint to respond
to increasing measured value; conversely, a “low”
phase assigns the relay setpoint to respond to de-
creasing measured value.
Setpoint Sets the value at which the relay will turn on.