Table 5 Filter types and properties
Filter type Diameter Pore size Temperature range
PPS plastic grid
with stainless steel
mesh
12 mm
(0.47 in)
15 µm −70 ... +180 °C
(−94 ... +356 °F)
Stainless steel
sintered
12 mm
(0.47 in)
38 µm −70 ... +180 °C
(−94 ... +356 °F)
Stainless steel
filter for moisture
in oil
12 mm
(0.47 in)
3.15 mm −70 ... +180 °C
(−94 ... +356 °F)
Porous PTFE
(general purpose)
12 mm
(0.47 in)
8 µm −70 ... +180 °C
(−94 ... +356 °F)
More information
‣
Accessories and spare parts (page 30)
2.7
LED indicator
The LED indicator on the component board provides a visual indication of the status of
HMM170. The alarm LED functionality is preset at the factory according to order form.
Table 6 LED indicator states
LED color Meaning
Not lit Module is powered o or LED functionality is disabled.
Green Module is powered on and ready for operation.
Green and blinking Module is powering up or communicating using Modbus.
Red Module is in error state.
You can use Vaisala Insight software to disable the LED indicator.
Chapter 2 – Product overview
11
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