Portable dew point meter for moisture measurement

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PPMa

-110 to +20 Deg C DP range
integrated orifice for pressure regulation

Leading edge technology portable dew point meter.

The PPMa uses the latest nanosensor technology for dew point measurement offering rapid and convenient trace moisture measurement, independent of background gas. The feature-packed unit offers fast, accurate and repeatable measurements in a light-weight (0.8 Kg) handheld device.

Standard features include:

USB port for data connection and battery charging
integrated orifice for pressure regulation
temperature compensation
user friendly graphical interface with histogram and trend graph
user programmable data logging
IP65 enclosure

Options are available for:

integral 0 to 10 Bar pressure sensor
4 to 20 mA output with HART^®
intrinsically safe ATEX

For rapid measurements at dry levels, the sensor is stored in an integral desiccant chamber. A sensor chamber capable of pressure measurement of up to 10 Bar, and an optional pressure sensor, allow line pressure dew point measurements and accurate conversion to ppm_v or other humidity scales.

GENERAL
Measurement	°C and °F dew point, ppm_v, ppm_w, µB H₂O vapour pressure, grams of H₂O/m³ and Lbs H₂O/10⁶ standard cubic feet in natural gas.
Measurement principle	Nanosensor aluminium oxide
Configuration	Portable
Moisture range	-110 to + 20 °C dew point
Temperature range	-40 to + 70 °C
Pressure range	0 to 150 PSIA
Moisture accuracy	±2 °C temperature corrected
Temperature accuracy	±2 °C
Pressure accuracy	±1 %
Resolution	< 0.01 °C
Repeatability	0.8 °C
Sample flow	> 1 LPM
Response time	95 % of step change in 3 min.
Process temp. range	-20 to +60 °C
Ambient temp. range	-40 to +85 °C
Memory	> 4000 samples
Certification
European	CE marked
ATEX	Ex II 2 G pending
IP rating	IP65
Calibration	NIST traceable (NPL traceable option)
Shipping
Shipping weight	0.8 Kg
MECHANICAL
Dimension	187 L x 106 W x 50 H mm
Connections	1/8" Swagelok^®Inlet and Outlet fitting adapters for the SAE/MS 5/16-20 ports
Enclosure material	Impact resistant Polyamide 12
Material (wetted parts)	316L stainless steel and PTFE
Pressure	150 PSIA
ELECTRICAL / UTILITIES
Power voltage	External AC universal power adapter, 100 to 240 VAC, 50 to 60 Hz, with USB connector
Outputs
Current	4 to 20 mA with HART^®
Digital I/O	USB
All specifications subject to change