Table of Contents
Advertisement
SIARETRON 1000 – 1100 - 3000
Service Manual
LOW BATT alarm threshold regulation: activate the supply from external battery (with power
•
supply adjusted at 10,9-11.0 V). hence turn the TR4 monorevolution trimmer (point G of
mounting plan) anticlockwise, until the red LOW BATT LED will light on. Hence, lightly turn the
trimmer clockwise and stop as soon as the LOW BATT. LED lights off. Verify that at decreasing
of electric power of power supply the LED lights on between 10.8 and 10.9 V.
NOTE: the references under brakes of the following point are relevant to the positions on LV100-P/1 board.
Testing of digital part: acting on LV100-P/1 panel board, while the alternated scripts alternate: I-O |
ofG appear (on DS13/14/15), perform the following checks (the references under brakes are relevant
to the positions on the LV100-P/1 board):
By the AUT. TIME CYCLED (SW7) key, the ON/OFF electovalve must light-on and off following
•
the status of the LED (LD1) next to LED ON/OFF switch.
By the AUT. PRESS CYCLED (SW2) key the BUZZER must light-on and off following the status
•
of LED (LD2) next to LED ON/ OFF switch.
Short-circuiting the CN6 connector feet of LV200I/O board (AIR inlet pressure switch) the red
•
LOW AIRWAY PRESS (APNEA LED (LD7) must light-off.
Short-circuiting CN7 connector feet of LV200I/O board (O2 inlet pressure switch) the red GAS
•
SUPPLY LED (LD9) must switch-off.
Verify the A/D channels: by pressing the ALARM RESET (SW20) key it is possible to verify the A/D
acquisition channels. On O 2 CONC display (DS9/10) and SIMV RATE display (DS11/12) appear
respectively the following scripts: An and In , on RATE display (DS3/4) appears message: Ch , on
% INSP display (DS5/6) it's shown the channel on which the monitoring is performed and on MINUTE
VOLUME display (DS13/14/15) it is shown the analog/digital conversion value. With the % INSP
(SW14) and
(SW17) keys it is possible to adjust the A/D channel from 0 to 5; perform the following
checks:
a)
Ch 0 (pressure): vary the inlet pressure of MPX10 sensor on the LV200I/O board from 0 to 80
cm of H2O and verify that the A/D value on display MINUTE VOLUME display (DS13/14/15)
changes from 20 ± 1 to 100 ± 2.
b)
Ch 1 (oxymeter): apply to CN12 connector an electric supply adjustable from 0 to 75 mV
between pin 4 (+) and pin 1 (GND); verify that the corresponding A/D value changes from 0 to
225 ± 2.
c)
Ch 2 (MINUTE VOLUME potentiometer): turn the potentiometer (POT) of MINUTE VOLUME
regulation and verify that the corresponding A/D value changes from 0 to 1023 (displayed as
023).
d)
Ch 3 : not used.
e)
Ch 4 (AIR flowmeter): apply to CN13 connector an electric power adjustable from 0 to 5 V
between pin 4 (+) and pin 2 (GND); verify that the corresponding A/D value changes from 0 to
1000 ± 2.
f)
Ch 5 (O
between pin 4 (+) and pin 2 (GND); verify that the corresponding A/D value changes from 0 to
1000 ± 2.
SIARETRON_SE3_en
flowmeter): apply to CN14 connector an electric power adjustable from 0 to 5 V
2
22 / (72 )
( rev.3) 30.06.2004
Advertisement
Table of Contents
