CALEFFI CONTECA EASY ULTRA - Technical Specifications

Temperature probes
Flow probe length
Return probe length
Probe type
Working temperature range limits
Temperature difference limits
Measurement sensitivity
Flow meter
Dimensions/Connection
Body
Type of hydraulic connection
Nominal pressure
Max. temperature of the medium
Mounting
Pulse output
Permanent ow rate
Minimum ow rate
Maximum ow rate
Electric supply
Microprocessor calculator unit
Metrological specications
Accuracy class
Centralised transmission
Ambient temperature range limits
Ambient classication
Energy unit of measurement
Electric supply
Protection class
Pulse inputs
Technical specications
in compliance with EN 1434-1 - MID 2014/32/EU
class 2
according to M-Bus/ MODBUS RTU protocol on RS-485
5–45
MID 2014/32/EU E1-M1
8-digit display
24 V (+10 % / -5 %) (ac) - 1 W - 50 Hz
in accordance with DIN 40050: IP 54
class IB in accordance with EN 1434-2
1,9
1,9
NTC
10–90 (HEATING) - 2–25 (COOLING)
3–80 (HEATING) - 3–20 (COOLING)
≤0,05
bar
°C
l/h
l/h
l/h
°C
kWh
PN
Qp
Qi
Qs
m
m
°C
K
°C
90
preferably horizontal
class OA-OC in accordance with EN1434-2
see table 1 and 2
see table 1 and 2
see table 1 and 2
lithium battery, life 12 years
p
Code
The CONTECA
®
heat meter is supplied with accessories for installation, probes positioning and subsequent lead sealing.
Code
DN G
F
E
C
A
B
D
DN A CB D PN
PN
2 x Y-pockets (the flow pocket is fitted with a strainer mesh)
TABLE 1 - Flow rate limit - Connections from 1/2” to 1 1/2”:
Code Connections Code Connections
2 x 1/2” weld sleeves with brass pocket to 1 lead sealing kit
* vertical installation
* vertical installation
TABLE 2 - Flow rate limit - Connections from DN 50 to DN 200:
1000 100
DN 125 100
1500 150DN 150 100
2500 250
100
150
250DN 200 100
100
Q
s
Q
s
750704
750705
750706
750707
750708
750709
750710
750711
750712
750713
750714
750715
Q /
p
100*/250
100*/250
p
Q /
p
Dimensions
2
Flanged EN 1092-1 Male thread ISO 228
Brass
DN 125–DN 200
1/2”–1 1/2”
DN 50–DN 100
Steel P235GH
PN 16
PN 16
PN 25
N.B. The ow meter must be installed between two rectilinear sections, measuring 10 times the pipe diameter upstream and 3 times the pipe diameter downstream.