Mini Dew Point Hygrometer

  • Portable Mini Hygrometer - Hand Size 
  • Range -110 °C to -20 °C (depends on sensor see below)
  • Intrinsically safe rating (option)
  • Accuracy +/- 2 °C Dewpoint
  • Calibrated in °C, °F or ppm(V), ppm(W), ppb, g/m3, lb/million cu.ft.
  • Pressure compensated in 4 selectable pressure units, psig, barg, kg/cm2g, Kpag.
  • Automatic Calibration built in
  • Alpha-Numeric logging (option)
  • Store up to 300,000 readings (logging option)
  • Dry down chamber for rapid readings
  • Long life rechargeable Li battery
  • NIST traceable calibration
  • USB Interface (with data logging pack)
Dew point is defined as the lower temperature to which air must be cooled in order for condensation to occur. The dew point is dependent on the concentration of water vapor present, and therefore on the relative humidity.
Mini Hygrometer
The new Mini SADP is a state of the art portable dewpoint analyzer. The unit is self-contained incorporating the moisture sensor, dry-down chamber, electronics, display and rechargeable battery all in a corrosion and impact resistant plastic casing. The padded carrying case, makes it ideal for heavy use in demanding industrial environments

Dry Down Chamber
The sensor must always be drier than the sample to be measured. This is achieved with the use of dessicant chamber that can be raised and lowered over the sensor. In the head down position the sensor is surrounded by desiccant at all times whenever a measurment is not in progress and whenever the instrument is not in use. The sensor is only exposed to the sample gas during a measurement (the head raised position) and is never in contact with ambient air.
    The chamber is also designed so that the void space and chamber wall surfaces are purged with sample gas, before exposure of the sensor, so giving even faster, more accurate and reliable results.

Specification of MiniSADP Dew point Hygrometer

Model MiniSADPxx
Sensor Aluminum Oxide Ultra High Capacitance
Range 184°F to -4°F (-120°C to -20°C dewpoint, Silver Sensor
-148°F to +32°F (-100°C to 0°C) dewpoint, Purple Sensor
-112°F to +20°F (-80°C to +20°C) dewpoint, Blue Sensor
Range 4 different ranges encompassing an overall range from -110 to +20 degs C dew point ( -148 F to +68F ) and corresponding ranges in ppm, ppb, lb/MMSCF
Display Blue 128 x 64 Dot LCD with LED backlight
Keyboard: 5-key membrane keypad 
Accuracy Better than ±3.6°F (±2°C dewpoint)
Resolution: 0.1°C dewpoint / 0.1ppm 
Response time Wet to Dry : -20°C to -60°C - < 60 S 
Dry to Wet : -110°C to -20°C - < 20 S 
Electronic Accuracy Better than ± 1% of range 
Sample flow range: Flow independent. Normal flow 
5 to 10 Liters per Minute (max 20 l/m) 
Warm up time :  15 Seconds 
Power supply AC Adaptor Supply voltage: 100-240 VAC, 50-60 Hz, 400 ma 
Output: 12 VDC, 15 Watts 
Battery 3.6 V Li-Ion 2.3 Ah capacity 
Charges from universal power adapter or USB
Capacity: >150 hours on a full charge 
Operating conditions Temperature: 14°F to +122°F (-10°C to +50°C)
Humidity: 0 - 95 % RH non condensing
Storage temp: -4°F to +122°F (-20°C to +50°C)
Operating Pressure: Atmospheric to 4 psig
Calibration: Supplied with NIST traceable certificate 
Electromagnetic compatibility Certified to BS EN 61326: 1998 
2.5 pounds  
Dimensions: 3.5. x 4.5. x 7.5.
Connections Swaglock
PC Interface  USB
Data Format: 1 start bit, 1 stop bit, no parity and no hardware handshaking 
Baud Rate: 9600 
No of addresses: 32 
SOFTWARE:  MS Windows® - based program
ANALOG OUTPUT: 4-20ma, range user settable
LOGGING: Up to 300,000 date and time stamped readings
Stored in up to 20 user definable folders.

Ordering Information

Part # Description Base Price
SADPmini2B Basic instrument with all standard features
The Mini2 is supplied ready for use, with calibration certificate traceable to NIST, instruction manual, battery recharger, and 6 feet of sample tubing. A ballistic nylon shoulder and belt-mount carrying case is available.
SADPmini2L As above but with analog output 4-20mA, Data Logging and USB connection SD Card $6301.00
SADPmini-Ex Intrinsically safe instrument. Data Logging and SD Card

IS Rating EX II 1 G EEX ia IIC T4 (Ta = -20°C to +50°C)

Ranges (for custom ranges contact us)
Part # Suffix Dew Point Range Price Added to Base
BL (BLUE) -80°C to +20°C (-112°F to +68°F) $00.00
SR (SILVER) -110°C to -20°C (-166°F to -4°F) $ 00.00
PL (PURPLE) -100°C to 0°C (-148°F to +32°F) $ 00.00
Process connections
Part # Suffix Description Price Added to Base
4 1/4" tube fitting + 1 barbed hose connection $ 0.00
8 1/8" tube fitting + 1 barbed hose connection $ 0.00
Power Connection (for charger) and Output Connection (for type L units only)
Part # Suffix Description Price Added to Base
US US power plug standard $ 0.00
US-U US power plug and USB for Wiundows 2000 or later. $ 0.00
US-S US power plug and serial port $ 0.00
Optional Accessories
Part # Suffix Description Price Added to Base
PRI Printer $468.00
HC Hard-sided ABS case with weather tight seal and handle $ 275.00
CC Soft-sided nylon carrying case with handle and shoulder strap. $ 188.00
HPR High pressure regulator to 3,000 PSIG, Stainless Steel, 1/4" FNPT connections $ 640.00
LPR Low Pressure Regulator to 250 PSIG, Stainless Steel, 1/4" FNPT connections. $ 301.00
SAL Outlet gauge (for LPR only) 1-1/2in dial, 0-15psi, all stainless steel, 1/8" FNPT connections $ 167.00
F Coalescing filter , stainless steel, for up to 3,000 PSIG, 1/4" FNPT connections $ 376.00
NV Needle valve, stainless steel, for up to 3,000 PSIG, 1/4" compression tube fittings. $ 161.00
FI Flow Indicator 100 PSIG max, 1/4" FNPT connections. $ 409.00
FM Flow Meter with integral needle valve, 100 PSIG max, 1/4 " FNPT connections $ 441.00
HPBH High pressure braided hose to 3,000 PSIG max with 1/4" compression tube fittings. $ 306.00
QC Quick connect fiiting for adapting from SADP to 1/4" FNPT connection. $ 151.00
Accessories for Sulfur Hexafluoride Applications SF6
SF6ST 6ft x 1/8" sample tubing with 1/8" x 1/4" VCO fitting. $ 194.00
SF6NV Needle Valve, stainless steel, for up to 3,000 PSIG, 1/8" compression tube fittings. $ 183.00
SF6FI Flow indicator, 100 PSIG max,1/4" compression tube fittings. $ 441.00