ABB AWT420, Инструкции по вводу в эксплуатацию

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AW T4 20 |
U N I V ER S A L 4 - W I R E , D UA L- I N P U T T R A N SM I T T ER | C I/AW T4 2 0 - EN R E V. B 33
Connectivity/Communications (optional)
Ethernet
HTTP, HTTPS, FTP, Secure FTP
PROFIBUS DP
DPV0, DPV1
MODBUS
RTU RS485
HART
• Fieldcomm certified version – HART 7
• Configured range
– 4 to 20 mA, user-programmable across
measurement range
• Dynamic range
– 3.8 to 20.5 mA with 3.6 mA low alarm level,
21 mA high alarm level
• Accuracy
– ±0.25 % of reading
• Maximum load resistance
– 500 Ω at 20 mA
• Configuration
– Can be assigned to either measured variable
• Isolation
– 500 V DC from any other circuitry
Data logging
Storage
• Measurement value storage
(programmable sample rate)
• Audit log*, Alarm log*, Calibration log, Diagnostics log
Storage media
SD card, up to 32 GB capacity
Chart view
On local display
Historical review
Of data
Data transfer
SD card interface – Windows-compatible FAT file system,
data and log files in Excel and DataManager Pro compatible
formats
Environmental data
Ambient operating temperature:
–10 to 55 °C (14 to 131 °F)
Ambient operating humidity:
Up to 95 % RH non-condensing
Storage temperature:
–20 to 70 °C (–4 to 158 °F)
Altitude:
2000 m (6562 ft) max. above sea level
* Audit log and Alarm log data are stored in the same log file.
2-electrode conductivity
Conductivity input
Measurement range and resolution
Cell
constant Conductivity
range
Display
resolution
Accuracy
repeatability
0.01 0 to 200 µS/cm 0.001 µS/cm
±1.0 % of
measurement
range per decade
0.05 0 to 1000 µS/cm 0.001 µS/cm
0.1 0 to 2000 µS/cm 0.01 µS/cm
1 0 to 20000 µS/cm 0.1 µS/cm
Dynamic response
<3 s for 90 % step change when damping is Off
Damping
Configurable: Off, Low, Medium and High
Temperature input
Temperature element types
• Automatic temperature sensor recognition for Pt100,
Pt1000 and 3k Balco RTDs in either 2-lead or 3-lead
configurations
• Temperature element can be used for automatic
temperature compensation of the conductivity solution
Measurement range and resolution
Sensor
group Temperature
range
Display
resolution
Accuracy
repeatability
Pt100
Pt1000
3K Balco
–20 to 200 °C
(–4 to 392 °F)
0.1 °C
(0.1 °F)
0.1 °C
(0.18 °F)
None User-programmable
–20 to 300 °C
(–4 to 572 °F)
N/A
Temperature compensation modes
Linear, UPW, NaCl, HCl and NH
3
Reference temperature
25 °C (77 °F)
Configured output range
Cell constant Min . span Max . span
0.01 1 µS/cm 200 µS/cm
0.05 5 µS/cm 1000 µS/cm
0.1 10 µS/cm 2000 µS/cm
1 100 µS/cm 20000 µS/cm