G 03899 - Edition 05 - August 12
1/1
C 20
M4 monitoring system parameters
Purpose of the
sensors
Unit
Thresholds
Mini.
Maxi.
Waterflow sensor
Signals insufficient water with a threshold mecanically
adjusted in factory.
-
-
-
Mass-flowmeter
Allows the display of the nitrogen flowrate.
slm
10
120
Signals insufficient gas purge during a warning time,
and stops the pumping at the end of alarm time.
mn
0
60
Functionnal block
temperature sensor
Manage the pump temperature with M4
(warning if T > warning threshold and alarm if
T > alarm threshold).
The sensor is fitted with a low temperature threshold
(set temperature -15 °C) signaling a pump is too cold
°C
70
100
(LP)
100
(HP)
Motor temperature
sensor
In case of temperature motor alarm the pump will be
stopped by cutting the 24V of the emergency stop loop
and will show an alarm.
Motor power sensor
Monitors the power consumed by the machine by
generating a warning followed by an alarm as soon as
the power is greater than each of its thresholds; the
pump is immediately stopped when alarm threshold is
exceeded.
W
500
5000
Pressure sensor
Signals exhaust overpressure when the pressure reaches
1650 hPa (exhaust pipe clogging) and stops the pump
at 1990 hPa
-
Only factory
adjustment
E. Analogic sensor
(only on A203H)
Allows the monitoring of voltage (0-10V) or an input
contact with two adjustable thresholds.
mV
0
9950
LI1, LI3 Logic sensors
Allows the monitoring of a logic sensor and to program
a warning time. The input logic is available only if
Roots 2 menu is disabled.
mn
0
60
At the pump start-up, the monitoring operation will depend on the programing done at the
factory. However, the monitoring system can be customized at any time according to the running
process, by programing the parameters of the various menus listed in
C 42
with the pump stopped.
Sensor location
See
D 10
.
adixen Vacuum Products - A3H Series Operating instructions
