HENGST OF NORTH AMERICA
1005307B
R928022617
HENGST OF NORTH AMERICA
MATERIAL: R928022617
SUMMARY:
Quantity in stock: 0
Online water content measurement devices allow the water activity in hydraulic and lubricating oils to be monitored online quickly and reliably.
Function
The WGMS oil humidity and temperature measurement encoder allows fast and reliable measurement of the humidity content in oils.
The devices are used to monitor humidity in real time and to control dryers and oil conditioners so that they are only activated as needed. Efficient monitoring helps to save oil and is good for the environment. With the WGMS, the humidity content in oil can be monitored simply and cost-effectively.
Measurement of the water activity
The WGMS measures the oil humidity in the form of water activity (aw) and also the oil temperature (T). The water activity is a direct indicator of whether there is a risk of water separation as a phase. The measurement is carried out independently of the type, age and temperature of the oil.
Calculation of the water content
The WGMS indicates the water activity (aw) and oil temperature (T). It is possible to calculate the average mass concentration of water in oil in ppm using this information. For this purpose, only the oil-specific conversion coefficients have to be determined.
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WGMS |
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Type |
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Online water content measuring unit |
WGMS |
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Version |
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Standard version consisting of: |
4 |
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As version 4, however with sensor cable, length 5 m |
5 |
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As version 4, however with sensor cable, length 10 m |
6 |
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Power supply |
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24 V |
2 |
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Supplementary information |
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Without |
no code |
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Ball valve installation kit |
K |
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Ball valve installation kit
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03 |
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Z |
WGM |
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KHI |
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Accessories |
Z |
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Water content measuring unit |
WGM |
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Ball valve installation kit |
KHI |
Material number
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Part number |
Ball valve installation kit |
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R928028819 |
ZWGM-KHI |
General
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Ambient temperature range |
°C |
0 … +60 |
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Storage temperature range 1) |
°C |
-40 … +65 |
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Mass |
kg |
≈ 1.5 |
| 1) | max. relative air humidity 65 % |
Measurements
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Measuring point |
Piping with flows up to 40 bar or turbulent tank installation location | |
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Response time |
min |
10 |
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Water activity |
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Measurement range |
aw |
0 ... 1 |
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Measurement accuracy |
aw |
0 ... 0.9: ±0.02 |
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aw |
0.9 ... 1: ±0.03 | |
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Sensor |
Capacitive thin-film polymer sensor | |
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Temperature |
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Measurement range |
°C |
0 … 100 |
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Measurement accuracy |
°C |
± 0.2 |
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Sensor |
Pt100 |
Electrical connections
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Analog output |
mA |
4 … 20 | |
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Power supply |
10 ... 35 VDC, 24 VAC ± 20% | ||
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Current consumption 1) |
max. |
mA |
40 |
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Housing protection class |
IP65 | ||
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Sensor protection |
Stainless steel grid filter | ||
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EMC (electro-magnetic compatibility) |
as per EN 61326-1, industr. requirements | ||
| 1) | At +20 °C (UIn 24 VDC) Iout 2 x 0...20 mA |
Compatibility with permitted hydraulic fluids
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Hydraulic fluid 1) |
Mineral oils HLP according to DIN 51524 |
| 1) | For more information and data on the use of other hydraulic fluids please contact us. |
The maximum operating pressure at the selected place of installation must not exceed the permissible operating pressure of the sensor.
When installing the sensor, ensure that the flow velocity does not exceed 1 m/s.
With the optional ball valve installation kit, it is possible to remove or install the sensor during system operation without having to drain the oil.
Electrically connect the sensor.
Important: when using the ball valve installation kit, leaks will occur when removing or inserting the sensor.
Warning
Hot oil can cause burns when removing or inserting the sensor.
Note:
All work on the device must be performed by trained specialists only. Warranty becomes void if the delivered item is changed by the ordering party or third parties or improperly mounted, installed, maintained, repaired, used or exposed to environmental condition that do not comply with the installation conditions.