Gyr GmbH
Subject to change without prior notice
17.11.2021
4
6.
Functional Details
The operating hours are counted from the first connection of the
power supply.
Missing hours are summated if there is an error and the flow
meter is thus unable to take a measurement.
Operating hours and missing hours can be reset through the
service software.
Note:
Detailed
information’s on resetting operating
hours and missing hours with the service software you
will find in the UltraAssist user manual.
Volume readings, maximum flow rates and missing hours are
stored monthly for 36 months.
The device number and the firmware version number are
issued by the manufacturer.
7.
Technical Data
Note:
The information on the flow 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 5 or 9 years
Optical interface
Standard, EN 62056-21
Communication
Pulse output
Separability
Always, optional cable length
Pulse output
Type
Open drain
Dielectric strength
500 V
eff
against ground, galvanic insulated
Pulse significance
Optional
Pulse length
Optional
Pulse sequence
In packages every 0.5 s (not equally spaced)
Cable length
2 m
Voltage
Maximal 30 V
Current
Maximal 30 mA
Voltage drop
< 0.3 V at 10 mA
Polarity
bipolar
Volume measurement unit
Protection class
IP 54 / IP 65 according to EN 60529
IP 68 (at qp 150) according to EN 60529
Mounting place
Hot side / cold side
Installation position
Any
Flow straightening
None
Measuring range
1:100 resp. 1:50
Temperature range
5 … 130 °C
National type approvals may be different.
recommended
…
…
heat application
10 … 130 °C
…
cooling application
5 … 50 °C
Maximum overload
2.8 x qp
Nominal pressure
PN16 (1.6 MPa; PS16), PN25 (PS25)