GDS-68XP Operation & Maintenance Manual, Revision 3.4
Page 37
CHANNEL S ETTINGS MENU
The Channel Settings Menu allows the user to adjust individual channel or sensor-specific features. Data
in the Channel Settings Menu is uploaded from Smart Sensors, and written back to any local Smart Sensor
if changed in the menu.
Figure 9-3: Channel Settings Menu Tree (1)
Channel x
Channel x
Channel x
Channel x
Alarm 1 →
Alarm 2 →
Alarm 3 →
Fault Alarm →
Data From →
Temp. Comp. →
Configure →
Calibrate →
Channel Settings
Channel Settings
Channel Settings
Channel Settings
Channel 1 →
Channel 2 →
Alarm x
Alarm x
Alarm x
Alarm x
Setpoint 20.00
Latching No
Trip
On
High
Fault Off
On Delay(sec) 0
Off Delay(min) 0
Dead Band % 1
Fault Alarm
Fault Alarm
Fault Alarm
Fault Alarm
Setpoint -10.00
Data From
Data From
Data From
Data From
EC Sensor
Remote Sensor No
Min Raw 800
Max Raw 4000
Filter Samples 20
Polarity POS
PGA Gain →
Heater Enabled No
Heat(degC) 10.0
All three relay outputs are identical and can be set to respond to channel 1 or channel
2 events. The fault relay is always dedicated to fault events.
Both channel setup menus are identical so only one is shown.
Alarm X menu
(all three alarm setting menus are identical)
Set Point
is the engineering unit value where the alarm trips. It may be
negative or positive.
Latching
YES causes the alarm to remain active even after the event clears.
NO clears the alarm automatically.
Trip On
HIGH causes the alarm to activate if the value goes above the
setpoint. Trip On LOW activates the alarm if the value goes below the
setpoint.
On / Off Delay
adjusts the time delay between the time when the event
occurs and when the alarm is activated.
Deadband prevents alarm cycling when the value is close to the alarm
level.
Fault Alarm
setpoint is typically set at -10% of full scale.
Data From Menu
Data From
determines the source of the data for this channel.
Min Raw / Max Raw
– Set the range of the input A/D converter. Normally
set to 800 (min) and 4000 (max). Useful if a sensor’s output does not
provide a full range signal.
Filter Samples
– Number of samples used by the smoothing filter.
PGA Gain
– sets the analog amplification level in the smart sensor interface
circuit.
WARNING: Changing PGA gain resets calibration data.
Heater Enabled
– Determines if the internal sensor heater is ON or OFF.
Heat(degC)
– Heater thermostat setting.