Alco Controls

54
Alco Controls
Technical Data
Supply Voltage Nominal 24 Vdc Sensor lifetime
Range (polarity protected) 7 ... 30 Vdc at full stroke at 25°C > 10.000.000 cycles
Operating current max. ≤ 24 mA output Burst pressure see selection chart
Protection class acc. to EN 60529 IP65 Medium compatibility HFC, HCFC, CFC
Load resistance
R ≤ L
U - 7.0V
B
0.02A
not suitable for ammonia and
inflammable refrigerants!
Temperatures PT5 Materials PT5
Operating ambient housing -25 ... 80 °C Housing cover, pressure connector, Stainless steel
Medium -40 ... 100 °C diaphragm with medium contact 1.4534 / AISI 316L
Transportation and storage -25 ... 80 °C Materials PT6
Temperatures PT6 Housing cover, pressure connector, Brass body W614N
Operating ambient housing -20 ... 80 °C diaphragm with medium contact Ceramic sensor cell
Medium -20 ... 80 °C Al O , Gasket CR70
2 3
Transportation and storage -20 ... 80 °C Chloroprene
Accuracy Performance PT5
Temperature range Total error*
PT5-07M/T -40 ... +80°C ≤ ± 1 % FS
PT5-18M/T -20 ... +60°C ≤ ± 1 % FS
PT5-30M/T 0 ... +40°C ≤ ± 1 % FS
-20 ... +60°C ≤ ± 2 % FS
-40 ... +80°C typically ≤ ±2 % FS
PT5-50M/T 0 ... +40°C ≤ ± 1 % FS
-20 ... +60°C ≤ ± 2 % FS
-30 ... +80°C typically ≤ ±2 % FS
*) Total error includes non-linearity, hysteresis, repeatability as well as offset and span
drift due to the temperature changes.
Note: % FS is related to Percentage of Full sensor Scale.
Electrical connection
Pressure transmitters PT5 with current output (2-wire
connection) offer following advantages:
1. More suitable for signal transmission over long
distances
2. Higher immunity to electromagnetic interference
Note: Changing the length of the electrical connection
lead beyond 1.5 m can have a negative impact on electromagnetic
compatibility. Additional protection may be
required.
BN = brown, supply voltage 24V
WH = white, output signal 4 … 20mA
(5) = Electronic Controller e.g. EC2 & EC3 Series
Vibration at 10 ... 2000 Hz max. 4 g
A2.5.1/1003/E