Giacomini GE552 Series Manual

M
etering systeMs
0388EN July 2015
V
olumetric thermal energy meters
ge552
series

Description

The GE552 volumetric single jet energy meter is characterised by its consistent
accuracy over time and its remarkable operating safety; high precision
measuring capability means that this device can be used across a wide range
of applications. The meter is available in 3/4" versions (nominal flow rate of
0,6 or 1,5 m³/h) and 1" versions (nominal flow rate of 2,5 m³/h). It is equipped
with a double register, and can therefore measure the thermal energy of both
heating and cooling operations. The temperature range of the meter makes
it ideal for metering energy consumption in residential buildings equipped
with a centralised heating/conditioning system and zone distribution.

Versions and product codes

Centre
to centre
Product code Connections assembly
distance
[mm]
GE552Y158 3/4" 110
GE552Y159
3/4" 110
GE552Y160 1" 130

Main characteristics

Its particularly compact structure makes it suitable for any type of installation.
The electronic part can be separated to allow installation in even the smallest
metering cabinets. Easy to use, by means of one single key. The display is
easy to read, and shows all the most important operating conditions. Its
reliability and notable measuring performance ensure excellent measuring
results throughout its working life. Thanks to the use of the most advanced
electronics (free of electromagnetic interference), it satisfies all the current
requisites in terms of measuring techniques for compact meters.

Technical data

Temperature probes
Resistance to platinum
Diameter and type of probe
Temperature range [°C]
Cable length [m]
delivery
Installation points
return
GE552
Nominal Flow rate Flow rate
flow rate min. max.
[m /h] [l/h] [m /h]
3 3
0,6 12 1,2
1,5 30 3,0
2,5 50 5,0
Pt1000
5 mm (DS according to EN 1434)
0÷105
1,5
direct immersion or in immersion
housings (existing systems)
probe integrated in the volumetric part

Electronic part

Temperature range [°C]
Temperature difference range [K]
Display
Ambient temperature range [°C]
Minimum temperature difference [K]
Measuring frequency [s]
Heat quantity representation
Data backup
Interface
Power supply
Battery lifespan
Protection class
EMV
Mechanical/electromagnetic class
Accuracy class

Volumetric part

Product code
Nominal Qp flow rate [m³/h]
Maximum Qs flow rate [m³/h]
Minimum Qi horizontal flow rate [l/h]
Minimum Qi vertical flow rate [l/h]
Start-Up horizontal flow rate [l/h]
Temperature range [°C]
Nominal pressure PN
Pressure loss at Qp [bar]
Nominal diameter DN
Length [mm]
Installation position
Cable length [m]
Installation point for the
temperature probe
Fluid
Losses of pressure
10
1
0,1
0,01
0,001
0,1
Product code Connections
GE552Y158
GE552Y159
GE552Y160
ISO ISO
9001 14001
0006/7 0032A/3
0÷105
3÷80
LCD with 8 figures + special symbols
5÷55
3
30 seconds
MWh
Once a day
M-Bus
3,6 V lithium battery
> 6 years
IP54
C
M1 / E1
3
GE552Y158 GE552Y159 GE552Y160
0,6 1,5 2,5
1,2 3,0 5,0
12 30 50
12 30 50
4 4 5
10÷90
16
< 0,25
15 15 20
110 110 130
horizontal or vertical; NOT upside down
1,2
M10 x 1
water
3/4"
1"
1 10
Q [m /h]
3
Kv
3/4" 3,0
3/4" 3,0
1" 5,6
OHSAS
18001
0064L/1
1