Phonetics SENSAPHONE EXPRESS II, User Manual

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73 Appendix A: Troubleshooting
5. The Express II and
telephone answering
device (sharing the
same line) answer
incoming calls simulta-
neously.
II. TEMPERATURE
MONITORING
1. The temperature
reading is low: -85
o F or
-65 o C.
2. The temperature
reading is high: 200
o F
or 93 o C.
3. The temperature
reading is inaccurate.
III. SOUND
MONITORING
1. False high sound
alarms occur frequently.
2. High sound does not
cause an alarm.
The Express II’s number of
"rings until answer" is set to
the same number of rings as
the telephone answering
device.
Open circuit on the input.
The circuit is shorted.
The sensor may be incompat-
ible with the unit. See 2.8K
and 10K thermistor look-up
tables in Chapter Three.
The sensor may simply need
calibration.
The programmed sound
sensitivity and recognition time
results in over-sensitivity to
non-alarm sounds as well as
alarm sound.
The microphone is not close
enough to the sound source,
or the programmed sound
setting results in a lack of
sensitivity to the high sound.
Increase the “rings until answer” in the
Express II.
Check wires for a loose connection or
broken wire.
Check the wiring to see if the wires
touch.
Replace the sensor with a compatible
model.
Calibrate the input. See “Inputs” in
Chapter Five for information on
calibrating the input properly.
Reprogram the sound sensitivity to a
less sensitive value and increase the
recognition time. See “Sound” in
Chapter Five.
Move the microphone closer to the
sound source and/or reprogram the
sensitivity and recognition time. See
“Sound” in Chapter Five.