Dräger Polytron 8900 UGLD Instrucciones De Uso página 24

en |
Disposal
Menu Default setting
Display capture -1 dB
low
Display capture 1 dB
high
14 Disposal
This product must not be disposed of as household
waste. This is indicated by the adjacent icon.
You can return this product to Dräger free of charge. For
information please contact the national marketing
organisations and Dräger.
15 Technical data
15.1 Signal transmission to control unit
Frequency of measurement calculation: 1 x per second
(update of display, analog interface and relays).
Analog signal
Normal operation
Drift below zero
Measuring range
exceeded
Instrument fault
Fault on analog
interface
Maintenance signal
Impedance of the signal loop
Operating Impedance
mode range of the
signal loop
Operation 0 to 230 Ω
without
Rising linearly
®
HART com-
with the supply
munication
voltage from:
0 to 230 Ω at 10
V to
0 to 500 Ω at 16
V
0 to 500 Ω
24
Range
-3 to 0 dB
0 to 3 dB
4 ... 20 mA
3,8 ... 4 mA
20 ... 20,5 mA
≤ 1.2 mA
> 21 mA
3.4 mA steady signal or 1 Hz mod-
ulation between 3 and 5 mA
(selectable)
Supply voltage range
at 10 V DC
10 to 18 V DC
18 to 30 V DC
Instructions for use
Operating Impedance
mode range of the
signal loop
Operation 230 to 270 Ω
®
with HART
Rising linearly
communica-
with the supply
tion
voltage from:
230 to 270 Ω at
11 V to
230 to 500 Ω at
16 V
230 to 500 Ω
230 to 500 Ω
®
HART Mul-
tidrop opera-
tion
15.2 Cable specifications
For non-conduit installations Dräger recommends using
shielded cables.
Analog / HART connection with control unit and power sup-
ply
Power supply and
signals
Relays
15.3 Power supply
Power supply
Maximum power
consumption
Operating voltage
Inrush current
Minimum supply
voltage
Operating current (max.)
without relay, non-
remote sensor
with relay, remote
sensor
1) Values are valid at 24 V DC operating voltage.
15.4 General specifications
Enclosure
Enclosure material
Enclosure protection IP 66
Display
®
| 8900 UGLD Firmware version ≥ 4.0.x
Dräger Polytron
Supply voltage range
at 13 V DC
11 to 16 V DC
18 to 30 V DC
10 to 30 V DC
3-core shielded cable
24 - 12 AWG / 0.2 - 2.5 mm²
20 -12 AWG / 0.5 - 2.5 mm²
3000 mW
10 to 30 V at the instrument
2.3 A for 2 ms at 24 V ,10 Ω
resistor
If the supply voltage is < 9.5 V DC,
the instrument issues a fault sig-
nal.
1)
80 mA
100 mA
316L stainless steel
Resolution 128 x 64 pixel, back-lit