Honeywell Touchpoint Pro Technical Handbook page 74

9.2.3 Field Device Selection
Access Level: Administrator
Parameter Value Range
Name
Field Device Maximum 30
Type Alphanumeric Characters
Sensor Variant Maximum 30
Alphanumeric Characters
9.2.4 Sensor Settings
Access Level: Administrator
Parameter Value Range
Name
Gas Name Maximum 10 Alphanumeric Characters
Gas Unit %FSD, %LEL, % Vol., ppm, ppb, mA, mV, mg/m3, LEL.m
or maximum 5 Alphanumeric Characters
9.2.5 Range Settings
Access Level: Administrator
Parameter Name
Signal Range Min
Signal Range Max
Gas Range Min
Gas Range Max
9.2.6 Display Settings
Access Level: Administrator
Parameter Name
Full Scale Exceeded
Enable
Part. No. 2400M2501_6
CONFIGURATION
Comment
If the sensor catalogue is used, a list of available field devices will be
displayed for selection.
If copy channel is being used, this value cannot be changed
If the sensor catalogue is used, a list of available gases and ranges
will be displayed for selection.
If copy channel is being used, this value cannot be changed
Default Setting Value Range
4 mA 0.5 mA to 4 mA
20 mA 12 mA to 24 mA
0 0 to 99999
depending on
selected sensor
type.
Depends on 0.01 to 99999
sensor type depending on
selected selected sensor
type.
Default Setting Value Range
Enabled for mV Enabled /
channels Disabled
Disabled for mA
channels
Comment
FSD – Full Scale Deflection
LEL – Lower Explosive Limit
LEL.m – LEL metres
Comment
x = Measured signal value
X1 = Signal Range Min (Electrical input from Sensor)
X2 = Signal Range Max (Electrical input from Sensor)
Y1 = Gas Range Min
Y2 = Gas Range Max
Gas concentration (y) is calculated as follows:
y = (((Y2-Y1)/(X2-X1))*(x-X1))+Y1
Comment
The Full Scale Exceeded warning is set if the gas
reading rises above the configured full scale value and
it clears when the value falls below the full scale value.
The peak value may be seen in the Trend graph.
67
Touchpoint Pro
Technical Handbook