Zenner zelsius User Manual

Operating manual Operating manual
Heat meter zelsius
®
Heat meter zelsius
®
... because every drop of water counts. ... because every drop of water counts.
Status Displays
The status messages display the operational status of the meter in an easily under-
standable manner (see table below).
Note :
The status messages in the table below only appear in the main display (en-
ergy)!
In all cases, in which the warning triangle represents a status message, you
should check first whether the problem is permanent or occurs only temporar-
ily.
If the symbol appears permanently, a service company should be called!
A few displays can be conditional upon the system and do not necessarily mean that
the meter is defect. The warning display disappears after a short period when the
system is operating properly.
Technical Data
* HC = heat computer
** VMU = volumetric measuring unit
Symbol Status Display Event / Reaction
Flow existent System is operating.
Indicator for a possible
defect!
Always on
If warning triangle appears
permanently, please notify a
service company.
Data transfer on the
interface
Only on when
data is being
transmitted
.and..
Emergency operation! Always on
Energy is still being displayed
and calculated correctly. All
other displays however, are
blocked and the button also
no longer reacts.
Notify service company
Type zelsius
Temperature range HC* °C 1 ...130
Temperature range VMU** °C 15 ... 90
Temperature difference
range
Kelvin 3 ...100
Type of temperature sensor Pt 500
Temperature range sensor °C 0 ... 130 (Silicon)
Dimensions sensor mm 5,0 / 5,2 (cable 1,5 m)
Nominal flow rate Qp m³/h 0,6 1,5 2,5
Nominal diameter DN mm 15 15 20
Highest flow rate Qs m³/h 1,2 3,0 5,0
Transitional flow rate Qt
(Class A)
l/h 120 150 250
Minimum flow Qmin (Class A) l/h 24 60 100
Nominal pressure bar 16
Media temperature VMU Tmax °C 90
Pressure loss at Qp bar ≤ 0,25
Starting flow rate typical
Horizontal ca. l/h 4 4 6
Display range LC-Display
8 positions, 3 after comma
Battery V 3,0 (Lithium)
Battery life years
≥ 6
Protection class IP 54
Ambient temperature °C 0 ...55
Weight measuring capsule g ca. 680
Connecting thread capsule inch G 2 B

Zenner zelsius Specifications

General

Temperature Range	-50°C to +150°C
Communication	Wired M-Bus, Wireless M-Bus, Pulse output
Measurement Range	-50°C to +150°C
Output	Pulse output
Power Supply	Battery (6 or 11 years), 24 V AC/DC