MEASURED VARIABLES
Dewpoint
Measurement range (typical) -60...+80 °C
Accuracy ±2 °C (-50...+80 °C)
see graph below
Response time (90%) at flow rate 0.08 m/s, 1 bar and +20 °C
-40 -> -20° C dp 35 s
-20 -> -40° C dp 240 s
Temperature
Measurement range -40...+80 °C
for specified dewpoint accuracy 0...+80 °C
Typical accuracy of electronics
at +20 °C ±0.1 °C
Typical temperature dependence
of electronics ±0.005 °C/°C
Temperature sensor Pt 100 IEC 751 1/3 class B
Relative Humidity
Measurement range 0...100 %RH
Accuracy at 20 °C
RH < 10% ±0.025 %RH + 8.75% of reading
RH > 10% ±0.7 %RH + 2% of reading
ppm
v
(dry)
Measurement range (typical) 0...5000 ppm
Accuracy at 20 °C, 1013 mbar 7.3 ppm + 8.3% of reading
OUTPUTS
Two analog outputs 0...20 mA
selectable and scaleable 4...20 mA
0...1 V
0...5 V
0...10 V
Typical accuracy of analog
output at +20 °C ±0.05% full scale
Typical temperature dependence
of analog output 0.005% full scale/°C
Serial output RS 232C
OPTIONS AND ACCESSORIES
Display cover local display/keypad
2 x 16 characters' LCD
Technical information
Probe cable lengths 2, 5 or 10 metres
Alarm relays (single pole change over)* 2 pcs 8 A/230 V
Power supply module 115/230 VAC
Sample system DSS10 configurable sample system
Sample cell DMP248SC
Ball valve set DMP248BVS
Sensor protection (Ø 13.5 mm) sintered filter of stainless
steel (16452)
stainless steel filter (HM46999)
SERIAL INTERFACE MODULES
Module types RS 485/422
digital current loop
Connections screw terminals for 0.5 mm
2
wires (AWG 20), stranded
wires recommended
Assembly plug-in module
Number of devices on line
RS 485/422 32
digital current loop 6 (single loop)
9 (dual loop)
Network cable type twisted pair
Network line length 1000 m max.
Network data speed
RS 485/RS422 9600 baud max.
digital current loop 4800 baud max.
GENERAL
Sensor DRYCAP
®
S sensor
Connections screw terminals for 0.5 mm
2
wires (AWG 20),
stranded wires recommended
Operating voltage 24 VDC/isolated VAC (20...28 V)
option 115 VAC, 230 VAC
Power consumption 100 mA max. (24 VDC)
Recommended external load for
current outputs < 500 ohm
0...1 V output > 2 kohm (to ground)
0...5 & 0...10 V outputs > 10 kohm (to ground)
Operating temperature range for
electronics -40...+60 °C
with display cover 0...+50 °C
with power supply unit -40...+45 °C
with alarm outputs up to 8A -40...+40 °C
up to 6A ...+60 °C
Storage temperature range -40...+70 °C
Pressure range of DMP248 0...2 MPa (0...20 bar)
with installation through a ball valve 0...1 MPa (0...10 bar)
absolute pressure
Housing material aluminum: G-AlSi12 (DIN 1725)
Housing classification IP 65 (NEMA 4)
Bushing for 7...10 mm diameter
cables (8 x 0.5 mm
2
shielded cable)
* Simultaneous installation with power supply module is
not possible.
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