Instruction manual

FA 300 Ex -80 to 20°C
td
FA 300-2 Ex measures the dew point
resp. the pressure dew point in
explosive areas of Zone 1.
Protection class: FA 300-2 Ex:
I 2G Ex ia II C T4
With the Atex approval for Zone 1
the established dew point measuring
instruments FA 300-2 can now be
used in explosive areas of the
industry as well.
FA 300-2 Ex may only be used in connec-
tion with approved Ex-rated power supplies
or safety barriers or galvanic separating
elements
with max.: U0 = 30 V max.
I0 = 100 mA max.
P0 = 1 W max.
20
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Dew point
Description Order no.
FA 300-2 Ex pressure dew point meter 0699 3070
Measuring chamber up to 350 bar 0699 3590
Special scaling 0699 4004
Analogue output to other humidity parameters:
% RH g/m
3
, mg/m
3
, ppm V/V, g/kg
Intrinsically safe power supply, safety barriers 0554 3071
Special features
 Robust design
 Pressure-tight up to 300 bar
 Long-term stable humidity sensor,
approved for years
 4...20 mA analogue output
in 2-wire system
 Further parameters adjustable via
software: % RH, g/m
3
, mg/m
3
,
ppm V/V, g/kg
 CS Service Software for data storage
and calibration
(no approval for explosive areas)
Explosive area Non-explosive area
Current supply
+ –
Intrinsically safe
power supply
L +
L –
+ +
– –
Controller/SPS
+
i=4...40 mA
–
Mains units
Description Order no.
Mains unit in wall housing for sensors of the Series VA/FA, 0554 0108
100-240 V, 10 VA, 50-60 Hz / 24 VDC, 0.35 A
Mains unit on DIN rail, 100-240 VAC / 24 VDC, 0.35 A 0699 3340
Power supply 100-240 VAC/24 VDC, 0.35 A for Series VA/FA 400, 2 m cable 0554 0107
Mains unit in wall housing 왘
Mains unit in wall housing 왖
Power supply 왖
Mains unit on DIN rail 왘
Technical data
for mains unit in wall housing
Dimensions: 118 x 133 x 92 mm
(WxHxD)
Power supply: 100-240 VAC, 10 VA,
50-60 Hz
Output: 24 VDC, 0.35 A
Relay: 2 pieces, change-over
contacts, 230 VAC, 3 A
Mains unit in wall housing:
Special features:
 Detachable screwing clamps
for easy wiring
 Galvanic separation of the pulse output
of consumption sensors VA 400/410
 2 relay outputs (230 VAC, 3 A)
for alarm signal amplification at dew
point sensors FA 400, FA 416
 Live parts protected untouchably
in housing
Technical data FA 300-2 Ex
Measuring range: Pressure dew point in °C
td
FA 300-2 Ex: -80...20°C
td
= 4...20 mA
Pressure range: -1...300 bar
Power supply: 24 VDC (10...30 VDC)
Accuracy: ± 0,5°C at -10...50°C
td
typical ± 2°C at -40°C
td
Output: 4...20 mA in 2-wire
technology
Protection class: IP 65
EMC: according to DIN EN 61326
Operating temp.: -20...70°C
Storage temp.: -40...80°C
Burden for
analogue output: < 500 Ohm
Screw-in thread: G1/2” stainless steel
Housing material: polycarbonate
Sensor protection: Sintered fi lter 50 μm
stainless steel