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7.
Error codes
The meter continuously runs a self-diagnosis and can thus
recognize and display various installation or meter errors:
Error code
Error
FL
nEG
Incorrect flow direction
if necessary, in exchange with:
DIFF nEG
Negative temperature difference
if necessary, in exchange with:
F0
No flow can be measured
F1
Interruption in the hot side temper-
ature sensor
F2
Interruption in cold side tempera-
ture sensor
F3
Electronics for temperature evalua-
tion defective
F4
Battery flat
F5
Short-circuit hot side temperature
sensor
F6
Short-circuit cold side temperature
sensor
F7
Error in the internal memory
holding
F8
Errors F1, F2, F3, F5 or F6 for
longer than 8 hours, recognition of
attempts to manipulate.
F9
Error in the electronics
8.
Technical data
Note: The information on the meter must be observed!
General
Measuring accuracy
Class 2 or 3 (EN 1434)
Environment class
A (EN 1434) for indoor installation
Mechanical class
M1 *)
Electromagnetic class
E1 *)
*) according to 2014/32/EU Directive on Measuring Instruments
Ambient humidity
< 93% rel. humidity at 25 °C, without condensation
Max. height
2000 m above sea level
Storage temperature
- 20 ... 60 °C
Electronic unit
Ambient temperature
5... 55 °C
Housing protection rating
IP 54 according to EN 60529
Power supply
Battery for 6 or 11 years
Operation threshold f. T
0.2 K
Temperature difference T
3 K ... 80 K
Temperature measurement
0 ... 180 °C
range
LCD
7 digits
Optical interface
Standard, EN 62056-21
Communication
Optional
Separability
Always, cable length 1.5 m
Sensor
Type
Pt 500 according to EN 60751, not detachable
Connection type
Pt 500, 2 wire technology
Cable length
1.5 m (optional 5 m)
Construction type
Bolb sensor ø 5.2 × 45 mm
Temperature range
0 ... 95 °C
Volume measurement unit
Protection class
IP 65 according to EN 60529
Mounting place
Hot side / cold side
Installation position
Any
Flow straightening
None
Measuring range
1:100
Temperature range
5... 90 °C
National type approvals may be different.
Maximum overload
qs = 2 x qp, permanent
Nominal pressure
PN16 (1.6 MPa, PS16)
Meibes System-Technik GmbH
Service guidelines
Check flow or installation direc-
tion; correct if necessary
Check installation point of the
temperature sensors; exchange if
necessary
Air in the measurement unit/pipe,
bleed air from pipe (delivery
condition)
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Inform service department
Measure dependent on error
code. Error message F8 must be
reset by service department.
Inform service department
Subject to change without prior notice
Power supply
Type of power supply
Battery for 6 or 11 years
Battery type
AA cell lithium
Lithium content
0.65 g per battery
Number of batteries
1-3; depending on the configuration
qp m³/h
Overall length and connection
0.6
110 mm (3/4'')
1.5
110 mm (3/4'')
2.5
9.
Asymmetric mounting (temperature sen-
sor)
The meter can be mounted asymmetric, too. This means one tempera-
ture sensor is directly immersed in the volume measuring tube, where-
as the other temperature sensor is mounted in a protection pocket. For
the lower value of the temperature difference is then 5 K valid at the
respective lower flow limit qi. At this kind of installation, the mentioned
protection pockets must be used.
Furthermore, the national regulations of the respective country must be
observed.
Inside diame-
Type of protection
ter [mm]
pocket
SPX/50/5,2
5.2
WZT-M35
5.2
JUMO 00420848
5.2
WZT-M50
5.2
JUMO 00326403
5.2
1/2" SPX-TH *
)
5.2
*
)
The sensor pocket must be installed in isolation.
130 mm (1'')
130 mm (1'')
Rack length [mm]
Thread size
from upper edge
[mm]
42
½''
46
½''
46
½''
57
½''
57
½''
53
½''
01.07.2022
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