3
customer’s order, two redundant sensors–sensors of the same type–are factory installed. Five sensor types
are available (see Table 1.3).
Table 1.3 Sensor-type options
Sensor
Category
Number of sensors
available per
instrument
Sensor type
Toxic
Two of the same type Carbon Monoxide (CO) only, Hydrogen Sulfide (H
2
S) only, Nitrogen Dioxide
(NO
2
) only, Sulfur Dioxide (SO
2
) only, or Carbon Monoxide with low
Hydrogen cross-sensitivity (CO/H
2
Low) only.
Note: See Table 1.5 for sensor specifications.
DUALSENSE TECHNOLOGY
DualSense
®
Technology enables the use of redundant sensors, two installed sensors of the same type that
are DualSense capable. The DualSense sensors measure the target gas concentration in the atmosphere
at the same time but operate independently of each other. Using a proprietary algorithm, the instrument
processes each sensor's data to display a single gas reading, while maintaining data logs for each sensor
and for the derived DualSense "virtual" sensor.
Each sensor will revert to operate as a single sensor in the event its redundant sensor fails. This allows the
instrument to continue operation until the failed sensor can be replaced.
MULTIPLANE SENSOR PORTS AND DATA MEMORY
The Tango TX1’s multi-plane sensor ports each sample air from three directions; this promotes continuous
operation if one or two planes become obstructed. Since the TX1 measures gas at two second intervals,
and continuously logs data every ten seconds, the data log can store approximately three months of data
for a unit that is on 24 hours a day and has two installed, operational sensors. As the newest data are
logged to memory, the oldest data are overwritten. The data log's date- and time-stamped event log
records and stores event data for 60 alarm events and 30 error events. It also stores the data for up to 250
manual calibration procedures and bump tests. The data log is downloaded when the unit is docked in a
compatible docking station.
DUAL-MODE OPERATING SYSTEM
The instrument has two modes; configuration and operation. When in configuration mode, a unit's settings
can be manually edited. Entry to configuration mode can be security-code protected. When the instrument
is on and is not in configuration mode, it is in operation mode.
GAS ALERT AND ALARM FEATURES
The Tango TX1 has a multisensory (audible, visual, and vibration), multilevel warning and alarm system.
Warnings indicate a service need (calibration due) or an operating condition (confidence indicator). Alarms
indicate potentially hazardous gas concentrations or system faults. The instrument also features a country-
of-origin option that automatically sets the values for the low-gas and high-gas alarm setpoints for each of
five different countries or regions; each alarm setpoint value can also be manually edited.
To Next Page
Loading...