Honeywell Sensepoint XCD RTD, Technical Manual

Page: 27 / 68

Sensepoint XCD RTD Technical Manual SPXCDHMRTEN Issue 1
27
9.1 Gas Selection
The Sensepoint XCD RTD Transmitter is unable to automatically “know” the type of
gas sensor that is connected to it. Therefore, manual set-up of the GAS TYPE and
MEASURING RANGE is required. This is done in the following way.
9.1.1 Gas TYPE set up
1. To access the configuration menu, hold the end of the magnet over the switch
located at the top center of the XCD RTD display (

) for at least 3 seconds, until the
“confirm” ICON ( ) shows on the LCD, and then remove the magnet. The display
will indicate ‘SEt CAL’
2. Hold the magnet over the (▲) switch for one second and remove. The display will
change to ‘SEL GAS’.
3. Hold the magnet over (

) for one second and remove. The display will change to ‘gAS
CO’ (the CO part is flashing).
4. Now, with the magnet, use the (▲) or (▼) switches to scroll (one at a time) through
the available gas types until the desired one is found. The available gases are listed
as below.
Gas abbreviation Gas description Remark
NO Nitrogen Monoxide
For use with Sensepoint Toxic
range of Honeywell Analytics
sensors;
Default alarm levels, shown in
Table 3. will be automatically set
according to the measuring range
selected (see section 9.1.2).
NO2 Nitrogen Dioxide
Cl2 Chlorine
NH3 Ammonia
H2 Hydrogen
SO2 Sulphur Dioxide
CO(default) Carbon Monoxide
H2S Hydrogen Sulfide
O2 Oxygen
User
User configurable
sensor
The user should specify the target
gas name, units (see section 9.1.1.1)
and the measurement range (see
section 9.1.2).
5. Hold the magnet over (

) for one second and remove. The display will then show
a. ‘LOAd gAS’ for approx 8 seconds, followed by
b. ‘LOAd PASS’ for 2 seconds, followed by
c. ‘CAL YES’ (the ‘YES’ part is flashing).
6. Calibration should not be done until the range of the sensor has been set, hold the
magnet over the (▲) or (▼) switch, the display will then show ‘CAL No’ (the ‘No’ part
is flashing).