Transonic TS420 - TS410 Alarms and Clamp-on Flowsensors

14 AU-OPR-400Ser-EN,
Rev D
TS410 Module: Directions For Use
B. Alarms Menu
The TS410 has 3 alarm settings: Low Flow, High Flow and Received Signal. Alarm threshold values are set in
the Program mode. Use the [Scroll] buttons to adjust the threshold from the default value. Default values
are scaled by Sensor size. Alarms are turned on/off in the Program mode using [Select]. NOTE: A star (*)
indicates an alarm is set.
ALL ALARMS TURN OFF AND RESET TO DEFAULT VALUES WHEN SENSOR IS DISCONNECTED OR MODULE TURNED OFF.
When an alarm condition is met, the LCD will ash alarm messages for the specic condition. The LCD
will continue to ash until the condition ends. The message will continue to be displayed on the LCD (not
ashing) to show that the condition occurred. Clear the LCD by pressing any button. NOTE: The button
pressed will also perform its regular function in addition to clearing the LCD screen.
NOTE: The alarm can be re-triggered if the condition is met again without having to reset the alarm in the
program mode. If more than one alarm is set and triggered simultaneously (ie low ow and received signal)
a joint alarm message is displayed. If more than one alarm is triggered sequentially only the most recent
alarm message will be displayed.
If the audible alarm is turned on, an alarm will sound a non adjustable beeping when the condition is met.
The audible alarm will stop if the condition ends. Press the [Mute] button to disable (or enable) the audible
alarm.
NOTE: The mute button is a toggle ON/OFF and must be reset to sound if muted.
LOW FLOW ALARM “LOFLOW”
The low ow alarm is activated when the pulsatile ow signal is lower than the set threshold level. Default
value is minimum ow value (negative ow not zero ow) that the Sensor is specied to detect.
HIGH FLOW ALARM “HIFLOW”
The high ow alarm is activated when the pulsatile ow signal is higher than the set threshold level.
Default value is maximum ow value (positive ow) that the Sensor is specied to detect.
RECEIVED SIGNAL ALARM “REC SIG ALARM”
The Received Signal Alarm is activated when the acoustic signal falls below the set threshold. This alarm can
be used as a gross bubble alarm or detector. The signal amplitude will fall or be interrupted by air or gas
bubbles in the ow circuit. Default value is 0%.
C. Use of Clamp-on Flowsensors
SENSOR SELECTION
Flowsensor size and calibration is determined by the OD of the tubing on which it will be used. Each
Transonic
®
Clamp-on Tubing Flowsensor is custom calibrated for use on particular tubing (silicone rubber,
latex, polyurethane, or polyvinyl chloride {PVC}). Use on tubing other than specied generally yields
inaccurate measurements and may cause erratic zero baseline drift.
SENSOR CALIBRATION
Flowsensors are precalibrated for a particular tubing and liquid at a certain temperature (see Flowsensor’s
calibration certicate). Recalibration is necessary for accurate measurements at other temperatures or in
other liquids. If a more precise zero baseline than that specied is needed, the Module must be zeroed by
stopping the ow momentarily.