The world’s first self-contained
Primary saturator humidity generator – fundamental precision
Transportable – suitable for use in the laboratory or on-site
Self-contained – no need for external services
-100… 10 °C dew point – covers the working range of most DP instruments
Three configurable probe ports – compatible with all types of dew point probe
Transfer standard sample loop – connection of a reference instrument
Moisture Analyser connection – enables calibration of all types of hygrometer
FPG enables precise test and calibration of dew point sensors, moisture analysers and most types of hygrometer. Compact and transportable, FPG is suitable for use in the laboratory, workshop and on-site.
FPG Applications:
Industrial calibration laboratories Battery production environments
Transfer standard for intercomparisons Heat treatment dew-point calibration
On-site dew-point sensor calibration ISO17025 accredited dew-point calibration
On-site moisture analyser calibration SF6 analyser calibration
FPG demonstration video
In Partnership with PrometH2O
The objective of PROMETH2O is to develop and improve trace water measurements relevant to the production of pure gases and to demonstrate their impact in selected industrial processes and applications. Click here for more information.
Fundamental Precision
The heart of the FPG is a temperature controlled humidity saturator that generates a stable water vapour pressure (dew point, moisture) within a closed loop. An integrated sample pump maintains a continuous flow through the saturator, the instruments under test and the external sample loop. At equilibrium, the saturator temperature and system pressure resolve a dew point or moisture reference condition to which sensors, probes or analysers can be compared and calibrated.
Fast automated calibration
FPG can stabilise dew point values in minutes. The recommended calibration process is to start with the lowest dew point, then to step up in fixed increments to the final value. If required, the same points can be easily repeated to establish reproducibility.
Uncertainty Defined
Accredited calibration is always based on an uncertainty budget that can be audited by an assessor. In collaboration with the NPL in London, an uncertainty framework has been developed, so that users can quickly calculate and document the calibration uncertainty with or without the use of a transfer standard.
Universal Compatibility
FPG has been developed to be compatible with all types of humidity-moisture instruments. The front panel probe ports can be easily configured to suit any type of dew point sensor. External sample loop connections with Swagelok® fittings are included as standard. This enables transfer standards or instruments under test to be connected to the FPG controlled dew point sample loop.
Embedded PC
The FPG control system is based on an embedded PC with an SSD and a touchscreen user interface. USB peripherals, such as keyboard and mouse, can be connected through the integrated USB hub.
Third-party solutions such as Calibry metrology software or manufacturer probe calibration software are available to work in conjunction with the FPG.
Transfer Standard
The fundamental physics at the heart of the FPG means it can be used for traceable calibration without the need for a transfer standard hygrometer. However, as is the case in temperature calibration, a reference measurement is often used to improve confidence and reduce uncertainty. For this reason, FPG includes external sample loop fittings so the user can validate performance at any time by connecting a reference instrument such as a dew point mirror.
Temperature measurement
The FPG saturator includes two positions for Pt100Ω temperature sensors. One PRT is used for measurement and control with the embedded control system. The second PRT can be connected to an external bridge for independent verification of the saturator temperature. Both PRTs can be removed for calibration if required.
API included as standard
The FPG comes standard with an API which is a text based remote command interface connected through the FPG ethernet port. FPG data can be captured and set points defined using custom scripts or third party software such as Calibry, RHS Control or MBW Gecko R2.
Pressure measurement
Dew point is pressure dependent, so the measurement of pressure is fundamental to the operation of the FPG, and the precision of the reference dew-frost point reference value. Precise pressure measurement is included within the sampling system and the value is displayed on the front panel together with the dew-frost point.
Flow measurement and control
The FPG sample loop includes a mass flow sensor and variable speed sample pump so the user can set and monitor the flow rate. Adjustable flow rates can also be used to accelerate stabilisation times, evaluate instrument response characteristics and desorption effects.
SPECIFICATIONS:
MODEL
FPG-60
FPG-80
FPG-100
Sample flow rate
Operating pressure
RANGE
-60…10 °C
-80…10 °C
-100…10 °C
2…4.5 LPM
800…1200 mbar
ACCURACY1
±0.1 °C
±0.2…0.1 °C
±0.5…0.1 °C
MODEL | RANGE | ACCURACY1
FPG-60 | -60…10 °C | ±0.1…0.1 °C
FPG-80 | -80…10 °C | ±0.2…0.1 °C
FPG-100 | -100…10 °C | ±0.5…0.1 °C
Sample flow rate 2…4.5 LPM
Operating Pressure 800…1200 mbar
1 Accuracy of generated frost-dew point condition within the system.
Generator type
Dew-frost point, condensation saturator, closed-loop flow
Stabilisation time
20 minutes, 20 °C set point change
Dry down time
45 minutes, ambient to -80 °C
DP probe adapter
316 Stainless steel, Nitrile O rings, 3 x FPG-PA0 included
DP probe thread
G ½” standard, other options as below
Sample loop connections
FPG-60 Swagelok® 6 mm
FPG-80/100 Swagelok® VCR
User interface
7” Touchscreen LED
Monitor interface
HDMI
Instrument interface
API via Ethernet
Power
100…250 VAC 50/60 Hz
Case material
Aluminium, powder coated
Dimensions
Weight
Instrument
W450 x D300 x H180 mm
23kg
Carton
W580 x D580 x H530mm
28kg
ORDERING INFORMATION
FPG Model:
Order Code
FPG Transportable dew-frost point calibrator, -60…10 °C
Q-FPG-60
FPG Transportable dew-frost point calibrator, -80…10 °C
Q-FPG-80
FPG Transportable dew-frost point calibrator, -100…10 °C
Q-FPG-100
Dew point Probe Adapters
FPG G ½” probe adapter (up to 50mm)
Q-FPG-PA1
FPG 5/8 UNF probe adapter (up to 50mm)
Q-FPG-PA2
FPG 3/4 UNF probe adapter (50mm to 70mm)
Q-FPG-PA3
FPG NPT 1/2” probe adapter (up to 50mm)
Q-FPG-PA4
FPG M14 x 1.25mm pitch probe adapter (50mm to 80mm)
Q-FPG-PA5
FPG G 1/2″ thread (long) (50mm to 70mm)
Q-FPG-PA6
Options & Accessories
Soft padded transport bag
Q-FPG-TB
Transit case, suitable for air freight
Q-FPG-TC
Upgrade to ISO17025 calibration
FPG-ISO-CAL-UP