Specifications

100 Commerce Way, Woburn, MA 01801
TEL: 1-888-VAISALA (824-7252) FAX: [phone]
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68
Measured Variables
Dewpoint
Measurement range -76°...+176°F (-60°...+80°C)
Accuracy ±3.6° F (-58°...+176°F)
±2°C (-50...+80°C)
Response time (90%) at flow rate 0.08 m/s,
1 bar and +68°F (+20°C)
-40 -> -4°F dp (-40 -> -20°C dp) 35s
-4 -> -40°F dp (-20 -> -40°C dp) 240s
Relative Humidity
Measurement range 0...100%
Accuracy <±0.5% (0...10%)
±1.0% (10...90%)
±2.0% (90...100%)
Temperature
Measurement range -40°...+176°F (-40°...+80°C)
Typical accuracy of electronics
at +68°F (+20°C) ±0.18°F (±0.1°C)
Typical temperature dependence
of electronics ±0.005°F/°F (±0.005 °C/°C)
Temperature sensor Pt 100 IEC 751 1/3 class B
ppm
v
(dry)
Measurement range (typical) 0...5000 ppm
Accuracy at 68°F (20°C), 1013mbar 7.3 ppm +8.3% of reading
Outputs
Two analog outputs 0...20 mA
selectable and scaleable 4...20 mA
0...1V
0...5 V
0...10 V
Typical accuracy of analog output
at +68°F (+20°C) ±0.05 % FS
Typical temperature dependence
of analog output 0.003 % FS/°F (0.005 % FS/°C)
Serial output RS 232C
Options and Accessories
Display cover local display/keypad
2 x 16 characters LCD
Cable lengths 2, 5 or 10 meters
Alarm relays* 2 pcs 8 A/230 V SPCO
(single pole change over)
Serial modules RS 485/422
digital current loop
Sensor re-gaining
Sample systems sample cell or configurable sample
systems (see DSS 10)
Power supply module* 115/230 VAC
* simultaneous installations with alarm outputs not possible.
General
Sensor DRYCAP®
Connections screw terminals for 0.5 mm
2
wires (AWG 20),
stranded wires recommended
Operating voltage isolated 24 VDC/VAC (20...28 V)
option: 115 VAC, 230 VAC*
Power consumption (st. configuration) 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°...+140°F (-40°...+60°C)
with display cover 32°...+122°F (0°...+50°C)
with power supply unit -40°...+113°F (-40°...+45°C)
with alarm outputs up to 8A -40°...+104°F (-40°...+40°C)
with alarm outputs up to 6A -40°...+140°F (-40°...+60°C)
Storage temperature range -40°...+158°F (-40°...+70°C)
Pressure range of DMP248
absolute pressure
probe 0...2mPa (0...20 bar)
sliding probe 0...1mPa (0...10 bar)
Housing material G-Alsi12 (DIN 1725)
Housing classification NEMA 4 (IP 65)
Bushing for 7...10 mm diameter
cables (8 x 0.5 mm2 shielded cable)
Sensor protection (ø 13.5 mm) sintered filter of stainless
steel (16452)
Serial Interface Modules
Module types RS 485/422
digital current loop
Connections screw terminals for 0.5 mm2
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/RS 422 9600 baud max.
digital current loop 4800 baud max.
TECHNICAL DATA - DMP 248
¯5.5
178
31
29
¯13.5
PR
O
BE UP
PROBE PUSHED DOWN
cable length
2,
5 or 10 m
adjustment
range 120 mm
fitting body hex = 2
4
nut hex = 27
R 1/2 keg. ISO 7/1
(1/2 NPT Adapter available)
Installation with
the ball valve set
Electronic
housing
Dimensions in mm
process pipe
ball valve
stainless steel filter
(Part No. DMP 248BVS)
DMP 248
¯6.5
CL ENT
133
145
104
120
65
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