Atec Micronics-PF330 - Manual (Page 6)

Portaflow 330 Technical Datasheet
6 Portaflow 330 Technical Datasheet
(Issue 2.1)
RS232/USB Output
The Portaflow 330 has a single RS232/USB output facility that can be used to download logged data to a PC or printer. Two, 2
metre interface cables are supplied with the equipment. The RS232 cable is terminated with a standard 9-pin D-type connector
suitable for connecting to the serial port of a PC/printer. The USB cable is terminated with a standard USB connector. In each
case these cables connect to an 8 pin LEMO connector on the top of the PF330 instrument.
Control Outputs
Data logger specification:
Logged data – Time-stamped flow rate. Units may be changed at time of download by selecting the
corresponding unit on the keypad (e.g l, gals, USgals, m³).
Number of data points – 98,000 (98k) logged events distributed across up to 20 sites.
All free memory is allocated by demand.
Programmable logging interval – 5s to 1hr. The screen updates to show the end time of memory remaining as sample units
are selected.
Manual/Auto control – Logging can be started and stopped manually or set for automatic (timer) operation.
Memory overflow – User selectable to either overwrite old data or stop logging.
Download log – Logged data can be downloaded to PC using RS232/USB interface (see below). Data can be
downloaded directly to facilitate ‘live’ logging, or recalled from memory to download at any
time.
Portagraph II – Portagraph II logging software is supplied.
USB interface: RS232 printer/terminal interface:
Protocol – The USB output supports full speed
(12Mbits/sec) data connection Protocol – The PF330 has inbuilt Serial RS-232
communications facilities including
handshaking
Software – USB driver software can be downloaded
from the internet
Pin
Configuration – LEMO
1
2
3
4
5
D-TYPE
6 DSR (red)
4 DTR (black)
5 Gnd. (screen)
2 TXD (green)
3 RXD (white)
The PF330 provides analogue and pulse outputs that are
designed to be used in conjunction with external control and
site monitoring applications such as those typically found in
building management systems. These outputs can be
calibrated to suit a required flow operating range and a high-
flow alarm level.
Both outputs are connected to a single (green), 7-pin LEMO
socket located on the top of the PF330 instrument. A single
2 metre cable is provided that can be adapted for use for
either of these output functions. The ‘tails’ on the free end of
the cable must be terminated to suit the intended application
Cable termination
Red –
Black –
White –
Green –
Brown –
Blue –
Thick Black – 4-20mA positive
4-20mA negative
Pulse output (+)
Pulse return (-)
Set Point (not in present use)
Set Point return (not in present use)
Cable screen