MADDALENA microCLIMA U, Инструкция по установке и эксплуатации

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2015_03_03 10
9.6.1 Technical data pulse output
Pulse output class OA (electronic switch) according to EN 1434-2:2007
Pulse value heat energy 1 kWh/pulse
Pulse value volume (optional) 100 l/pulse
Peak switching current 300 mA ~/-
Switching voltage, maximum 35 V ~/-
Switching power, maximum 300 mW
Contact isolation > 10
9
Ohm
Contact resistance (on) max. 25 Ohm
Contact capacity 1.5 pF
Maximum current 120 mA
Withstand voltage (open contact) 350 V ~/-
Closure time 125 ms
Interval between pulses 125 ms
10 Information Messages
When the instrument has detected an information message, the message symbol is displayed:
The specific message can be found at the menu item 8 ‘Information message’ in Level 1/Main loop (see section 7
“Display”). The instrument recognizes eight message causes, which can also occur in combination with each other.
The messages are shown on the display. The message code is displayed alternately in binary and hexadecimal form.
Binary display Description Hexadecimal display
1 at first place Low battery H 80
1 at second place Check sum error H 40
1 at third place E
2
PROM defective H 20
1 at fourth place Instrument has been reset H 10
1 at fifth place Time-out TDC (Time-to-digital
converter) H 08
1 at sixth place Internal calibration defective H 04
1 at seventh place Return flow sensor defective H 02
1 at eighth place Forward flow sensor defective H 01
Example: Time-out TDC
(Time-to-digital converter)
Message
Lo
w
b
att
ery
Ch
eck
su
m
erro
r
E²P
R
OM
faul
t
Rese
t
Tim
e
-o
u
t
TD
C
In
te
rn
al cali
b
rati
o
n
erro
r
Ret
u
rn
fl
o
w
senso
r
fau
lt
Fo
rward
fl
o
w
senso
r
fau
lt
Alternating hexadecimal
message displayed (LCD)
Bit 7 6 5 4 3 2 1 0
Display location 1 2 3 4 5 6 7 8
Alternating binary
message displayed (LCD)
When a message appears in the standard display (total heat, or alternating total heat and cooling energy), with the
exception of the messages ‘Reset’ (10) and ‘Time-out TDC’ (08) in the case of air in the measuring tube, the
instrument must be exchanged and sent to the supplier for examination.