22 INSTALLATION AND OPERATING INSTRUCTIONS PRECISION
®
FILTER CLEANING SYSTEM CONTROLS
ELEMENT DETAILS
P2 on-board pressure transducer Operating Pressure Range: 0 to 2.5 kPa (0 to 10″ WG)
Accuracy: +/−2.5% FSS
Burst pressure: 20 kPa (83″ WG)
Vibration resistance: to 10 G at 20–2000 Hz
Response time: 8 ms
Temperature-compensated ASIC signal conditioning
DC/DC baseboard
Input voltage: 24 to 48 V DC (+/−10%)
Input current: 3 A maximum
Permissible transients: 60 V maximum
AC/AC baseboard Input voltage: 110 or 240 V AC (+/−10%) 50/60Hz
Input current: 3 A maximum
Permissible transients: 300 V maximum
AC/DC baseboard Input voltage: 110 to 240 V AC (+/−10%) 50/60Hz
Input current: 2 A maximum
Permissible transients: 300 V maximum
DC Output terminals Voltage: 24 V DC
Output current: 2.5 A maximum
10 on baseboard, 10 on each expansion card
AC Output terminals Voltage: Equal to input voltage
Output current: 2.4 A
10 on baseboard, 10 on each expansion card
Maximum number of expansion 19 giving 200 outputs total cards connected
Maximum distance between 100m expansion cards
Tube cleaner output (P-CTX) AC/DC or DC/DC baseboard
Voltage: 24 V DC
Output current: 2.5 A maximum
Tube cleaner output (P-CTX) on AC/AC baseboard Voltage: Equal to input voltage
Output current: 2.4 A
Analogue output (P-CTX) Type: Internally powered 4–20 mA
Voltage: 24 V DC
Output current: 20 mA maximum
Digital I/O (P-CTX) Type: Voltage-free (dry) contacts
Maximum applied voltage: 300 V AC
FAN & GND contacts (baseboard) Type: Voltage-free (dry) contacts
Maximum applied voltage: 300 V AC
RS485 contacts (P-MOD) Type: Data
Maximum applied voltage: 24 V DC
Modbus implementation Layer: 2-wire, half-duplex, RS485 serial
Protocol: Modbus RTU
Baud Rate: 9600
Data bits: 8
Stop Bits: 1
Parity: None
Address range: 0–255
System safe operating temperature 0 to 70°C (32 to 158°F)
System humidity allowance Non-condensing to 85%
PRECISION SYSTEM
SPECIFICATIONS
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