Instruction For Use PMH7000
Version 2
Revision 03 23 July 2019
Page 13 of 20
5.4 Other Functions
Prevention of abnormal temperature rise.
To prevent abnormal temperature rise, a thermal fuse is used for the safety of the power circuit. Should there be a short-
circuit due to some damage, the power will cease automatically.
When the patient side temperature e43
C, the patient icon LED (A) lights up in red and the alarm sounds
intermittently. Then, a solid state relay (ssr) is activated and stops the temperature rise.
If the heater plate temperature e130
C, a thermostat will cease the power supply to the circuit, and stop operation.
At that time, all displays are cleared, and the unit is not active.
Warning !
Under such condition, stop using the PMH7000 Humidifier base and contact your sales
provider immediately for assistance.
LED
ⓒ
Heated wire
Flashes red
– The heated wire is disconnected or faulty (in this case a high priority audible alarm sounds
intermittently).
LED
ⓓ
Dual temperature probe
Flashes red
- The dual temperature probe (7700000) is disconnected or faulty (in this case a high priority
audible alarm sounds intermittently).
LED
ⓔ
Heater plate
Flashes red
- The measured chamber temperature does not rise more than 2
C in 20 minutes from start
up (in this case a high priority audible alarm sounds intermittently).
Note:
If an alarm state is left unresolved for 10 minutes, then the device displays
“000”, and stops
operating. The Humidifier base requires turning off and on again to resume operation.
Note:
To check the alarm status, operator should be located in the same room with the patient.
Alarm Silence Button
“ALM”:
It mutes all audible alarms for 2 minutes.
Mute will end after 2 minutes. If the alarm situation continues, the alarm will again sound intermittently after
2 minutes.
If any new alarm condition occurs under the mute mode other than original alarm condition, the original
mute mode will be invalid and the alarm will activate against the new alarm condition.
Note: Pressing the
“ALM” button for more than 2 seconds will switch the display After 10 seconds it will
revert back and display airway temperature.
