VAISALA DM70 Handheld Dewpoint Meter for Spot-Checking Applications

VAISALA DM70 Handheld Dewpoint Meter for Spot-Checking Applications

Hand-Held Dewpoint Meter DM70 measures dew point temperature accurately over a wide measurement range. The probe may be inserted directly into pressurized processes, and it responds rapidly from ambient to process conditions. The sensor withstands condensation and fully recovers from getting wet.

Check DPT146 Dew Point by using the DM70

Specification

MI70 Measurement Indicator General
Menu languages	English, Chinese, Spanish, Russian, French, Japanese, German, Swedish, Finnish
Display	LCD with backlight Graphic trend display of any parameter Character height up to 16 mm
Max. no of probes	2
Power supply	Rechargeable NiMH battery pack with AC-adapter or 4xAA size alkalines, type IEC LR6
Analog output	0...1 VDC
Output resolution	0.6 mV
PC interface	MI70 Link software with USB or serial port cable
Data logging capacity	2700 points
Alarm	Audible alarm function
Operating temperature range	-10...+40 °C (+14…+104 °F)
Storage temperature range	-40 ... +70 °C (-40 ... +158 °F)
Operating humidity range	0 ... 100 % RH, non-condensing
Housing classification	IP54
Housing materials	ABS/PC blend
Weight	400 g
Electromagnetic compatibility	EN 61326-1, Generic Environment
Measured Variables, DMP74A Probe
DEW POINT
Measurement range (typical)	-50 ... +60 °C (-58 ... +140 °F)
Accuracy (A probe) -40...+60 °C	±2 °C (±3.6 °F)
Dew point accuracy vs. measurement conditions
Response time
flow rate 0.2 m/s, 1 bar pressure, +20 °C (+68 °F)	63% [90%]
0 -> -40 °C Td (32 -> -40 °F Td)	20 s [120 s]
-40 -> 0 °C Td (-40 -> 32 °F Td)	10 s [20 s]
Dew point sensor	Vaisala DRYCAP® 180S
TEMPERATURE
Measurement range	-10 ... +60 °C (+14 ... +140 °F)
Accuracy at +20 °C (+68 °F)	±0.2 °C (±0.36 °F)
Typical temperature dependence of electronics	±0.005 °C/°C (±0.005 °F/°F)
Temperature sensor	Pt100 RTD Class F0.1 IEC 60751
OTHER VARIABLES AVAILABLE
Dew point converted to atmospheric pressure, ppm volume and ppm weight concentration, absolute humidity, mixing ratio, relative humidity
Measured Variables, DMP74B and DMP74C (for SF6 gas) Probes
DEW POINT
Measurement range (typical)	-70 ... +30 °C (-94 ... +86 °F)
Accuracy (B and C probe) -60...+20 °C	±2 °C (±3.6 °F)
Dew point accuracy vs. measurement conditions
Dotted line:	For DMP74C the ±2 °C accuracy range is limited to -50 °C Td when used in SF6 gas.
Response time
flow rate 0.2 m/s, 1 bar pressure, +20 °C (+68 °F)	63% [90%]
0 -> -60 °C Td (32 -> -76 °F Td)	50 s [340 s]
-60 -> 0 °C Td (-76 -> 32 °F Td)	10 s [20 s]
Dew point sensor	Vaisala DRYCAP® 180S
TEMPERATURE
Measurement range	-10 ... +60 °C (+14 ... +140 °F)
Accuracy at +20 °C (+68 °F)	±0.2 °C (±0.36 °F)
Typical temperature dependence of electronics	±0.005 °C/°C (±0.005 °F/°F)
Temperature sensor	Pt100 RTD Class F0.1 IEC 60751
OTHER VARIABLES AVAILABLE
Dew point converted to atmospheric pressure, ppm volume and ppm weight concentration
All Probe Models
Operating temperature	-10 ... +60 °C (+14 ... +140 °F)
Operating pressure
DMP74A, DMP74B	0 ... 20 bara (0 ... 290 psia)
DMP74C	0 ... 10 bara (0 ... 150 psia)
Sample flow rate	no effect for measurement accuracy
Measured gases	non-corrosive gases
Probe material (wetted parts)	Stainless steel (AISI 316L)
Sensor protection	Sintered filter (AISI 316L) partno: HM47280
Mechanical connection	G1/2” ISO228-1 thread with bonded seal ring (U-seal)
Housing classification	IP65 (NEMA 4)
Weight	350 g