CIAT Magister 2 Series, Установка, Эксплуатация, Пусконаладка, Обслуживание

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
Correspondence table:
10.2 Pressure sensor
The high and low values for the HP/LP pressure sensors are given below:
The sensors are adjusted using parameters P30 to P39.
Measurement range:
- Power supply: 5 V DC
- Signal: 0.5 - 4.5 V
Short-circuit faults will be detected by a voltage
≥ 4.75 V.
Open-circuit faults will be detected by a voltage
≤ 0.25 V.
The pressure values given are for relative pressure .

The HP sensor will:
- Monitor the HP pressure in the circuit and relay this information
- Control the unit using the HP - Control the condensing pressure

The LP sensor will:
- Monitor the LP pressure in the circuit and relay this information - Monitor for refrigerant leaks before turning on stages
When reading the operation parameters for the pressure levels, the sensors can be adjusted with the
OK button if is a difference is
found between a value that is read and the corresponding value measured by a pressure gauge.
Example:
Press
OK to access and change the adjustment value.
Press
OK to confirm the new adjustment value and go back to the
operation parameter.
Press
ESC to cancel any changes made and go back to the
operation parameter.
This readjustment will be used to correct the difference between the value
measured by a pressure sensor and the value read on a pressure gauge.
The resulting new slope will then be used for control.
Temperature
(°C)
SENSOR RESISTANCE
Ω
DISCHARGE SENSOR
50 K
Ω
CONTROL AND OUTDOOR
SENSOR 10 K
Ω
10 - 55340
-5 - 42340
0 162250 32660
5 126977 25400
10 99517 19900
15 78570 15710
20 62468 12490
25 50000 10000
30 40280 8058
35 32650 6532
40 26624 5326
45 21834 4368
50 18005 3602
Low value
from
High value
to
P31 P30 HP1
P33 P32 HP2
P37 P36 LP1
P39 P38 LP2
P 3 x x H P x P R E S S U R E
↑
x x . x b
↓
S E N S O R A D J U S T M E N T H P x
x x . x b 0 . 0 b
[- 1 + 1] 0 by default
High value
Low value
Pressure
Voltage
Calculation
with
adjustment