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Key: test item, instrument name, total nonvolatile migration, gravimeter, moisture permeameter
Product
Hand-held Dew Point Meter
- Description
- Applications
- Standard
- Features
- Parameter
- Configuration
- Video
- PDF Download
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- Commodity name: Hand-held Dew Point Meter
- Commodity ID: DPM-16H
DPM-16H
Function
The meter uses the electrolytic method to measure the moisture content or dew point of non-corrosive gas or acid gas.
Principle
The coil-like double platinum wire and its gap (less than 20um) constitute an electrolytic cell. Phosphorus pentoxide in the gap between platinum wires absorbs trace water to produce phosphoric acid and generates a weak current. The current is proportional to the amount of water absorbed. The dew point or trace water content is calculated according to the measured current.Standards
GBT 5832.1.
Characteristics
● High precision, 10 ppb.
● Wide Test range, -80℃Td~-6 ℃Td.
● Corrosion resistance - It can measure acid gas and slightly corrosive gas.
● High-performance rechargeable battery - over 12 hours of continuous operation.
● Easy to use - direct measurement with gas connection, without bypass flushing.
● Sensor safety - with a sensor over range protection function.
SpecificationName
Parameter
Name
Parameter
Dew point Range
-80 ℃Td ~ -6 ℃Td
Repeatability
≤±1 ℃Td
Water content range
0.5 ppmv ~ 3800 ppmv
Water content error
0.5 ppmv or 1% m.v
Flow rate
100 sccm
Response time
＜5 min
Charging time
4 hour
Battery capacity
One charge for 12 hours
Gas pressure
0.1 MPa
Size（L*B*H）
230*90*142 mm
Environment
-10 ℃~45 ℃
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