Elgas DATCOM, Руководство по эксплуатации

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3
Technical Parameters
26
device
- Cable length for each input max. 30 m
- LF pulse input
Terminals DI1, DI3
(DI3 – for gas meters with
the option of detecting the
rotation direction)
Terminals DI1, DI4
(DI4 – for gas meters
with the option of
detecting the rotation
direction)
- Maximum frequency
- Maximum operating flow rate Qm
10 Hz
36 000 m 3 /h
- Input type Reed contact or potential-free output connection,
WIEGAND
- Min. pulse/delay time 40 ms
- No-load voltage 2.5 V ÷ 3.6 V
- Short-circuit current
approx. 3  A
- "ON"
R < 100 k  or U < 0.2 V
- "OFF"
R > 2 M  or U > 2.5 V
- Binary input, tamper contact
Terminals DI3
(Terminals DI1
13
)
Terminals DI4
(Terminals DI1
13
)
- Input type Low-power input, reed contact or potential-free
output connection
- Min. duration of the condition 100 ms
- No-load voltage 2.5 V ÷ 3.6 V
- Short-circuit current
approx. 3  A
- "ON" level
R < 100 k  or U < 0.2 V
- "OFF" level
R > 2 M  or U > 2.5 V
B. Non-Metrology
- Number 1 2
- Marking of the terminals (DIN
terminal block)
DI2 DI2, DI3
- Input options (SW configuration) 1 LF pulse input, or
1 binary input
2 LF pulse inputs, or
2 binary inputs, or
1 LF pulse input +
1 binary input
- Backup function in case of
power supply failure
No
- Cable length for each input 30 m max.
13 ) Only when input DI1 is not used for gas meter connection (e.g. with the datalogger).