Design And Function; Design - GF PF220 V2 Betriebsanleitung

RTD PT100

Design and function

connectors
PF330 V2 Models only)
3 Design and function
3.1

Design

The GF PF220/330 V2 is a microprocessor controlled instrument operated through a menu system using an inbuilt LCD display and
keypad. It can be used to display the instantaneous fluid flow rate or velocity, together with totalized values, or act as a datalogger
(GF PF330 V2 only). When operating in the data logger mode, the logged data can be stored in the instrument's non-volatile memo-
ry for downloading to a USB key at a later time. Up to 200k logging events can be stored internally.
The instrument can also provide a variable current or variable 'pulse' (volumetric or frequency) output that is proportional to the
detected flow rate. This output can be calibrated to suit a particular flow range and used with a range of external interface devices
such as those found in BMS or site monitoring systems.
GF PF330 V2 HM units can be used to measure energy and power. They are supplied with RTD probes which, when properly
placed, can be used to calculate energy lost or absorbed in a heater or chiller circuit. It does this by measuring the difference in
temperature between the probes, which are
usually placed on the flow and return pipes at the point of source.
10
Output cable
connector
PF330 MAIN 03-02-21
Quick start..
View/Edit site Data..
Setup Instrument..
Data Logger..
Read Flow..
7 8
Units Flow Energy
4
5
Velocity
Off
1 2
Logger System Outputs
Transducer cable USB socket
connector (PF330 V2 Models only)
12:30:16
9
Delete
+ / -
6
Diags
•
On
3 0
Operating Instructions