03
INSTALLATION AND OPERATING INSTRUCTIONS PRECISION
®
FILTER CLEANING SYSTEM CONTROLS
WARNING
To avoid product malfunction or electrical shock, do not expose Precision circuit boards to rain or moisture. Installation must be
performed using qualified technicians.
CAUTION
Use of controls or adjustments or performance or procedures other than those specified in this manual may result in product
failure, or poor product performance. You are cautioned that any changes or modifications to the product not expressly approved
in this manual could void your product warranty.
Note.
The P1, P2, PS-L, PS-C, P-CTX and P-MOD have been tested and found to comply with EN55024:1998, EN61000-4-2, EN61000-
4-4, EN61000-4-5 and EN61000-4-11 for immunity to ESD, immunity to EFT and bursts, immunity to surges and immunity to
voltage dips and interruptions. This equipment did not become dangerous or unsafe as a result of the application of the tests
defined in EN55024:1998.
PRECISION PROGRAM COMMISSIONING LOG
Use this log during system commissioning to keep a permanent record of controller settings.
PARAMETER
DEFAULT
Language
English
On time (ms)
100
Off time (s)
50
Display units*
kPa
Demand cleaning*
(by limits; default)
High dP
Low dP
1.0 kPa
0.5 kPa
Demand cleaning*
(by bandwidth)
High dP
% band
1.0 kPa
40
Alarm delay(s) *
0
High dP alarm*
2.0 kPa
Precoating*
None
Pattern cleaning*
Off
Blowdown cycles
None
Remote stop*
Hardwired
Tube cleaner CTX
Off
Maximum Interval* (s)
Off
Network MOD
Off
* Only with P2 controllers.
CTX Available on the AC/AC baseboard, otherwise only when P-CTX fitted.
MOD Only when P-MOD fitted.
PRODUCT DESCRIPTION
The Precision (or controller) is an advanced filter cleaning control system for reverse-pulse jet dust collectors. This system
may be specified with a selection of control interfaces and signal output options. The controller may be easily upgraded from
simple sequential mode control (P1 interface) to Enhanced Demand Mode (P2 interface). An RS-485 Modbus RTU compliant
communications card (P-MOD) provides full networking and remote programming for DCS and SCADA systems. An I/O card
(P-CTX) provides voltage-free contacts for alarms, 4–20 mA output (for dP reporting, P2 only), and basic remote control. The
solenoid outputs can be expanded up to 200 outputs through the use of the PS-L or PS-C expansion cards (or slave cards) with
the AC/DC baseboard (AC voltage input, DC voltage output) or DC/DC baseboard (DC input and output) and PS-LA or PS-CA
expansion cards on the AC/AC baseboard (AC input and output).
