8 of 35
01115009A _9
Paracube
®
Micro – Instruction Manual
Materials in Contact with Sample Gas
Stainless steel grades 316, 316L, 302S25 and 304 (1.4301).
Borosilicate glass and alkali borosilicate glass.
Polyphenylene sulphide (PPS) with carbon / glass filler.
Polysulphone (UDEL).
Platinum and platinum iridium alloy.
Nickel.
Fluorocarbon elastomer -FPM (Viton).
Krytox GPL205 grease.
PTFE filter.
Polypropylene.
3.3 External Power Supply Specification
+5V dc ±5%, a supply supervisor inhibits operation when the PSU is below 4.75V.
Ripple and noise <0.1V Pk to Pk.
Current consumption: 5V supply rail = 70mA typical 100mA max.
A change of ±0.25V in supply Voltage results in a change of less than ±0.1% in oxygen
concentration.
3.4 Environmental Specification
Sample Gas Condition
Dry, non-corrosive, non-flammable gas, free of entrained oil, less than 3 micron
particulates, non-condensing, dew point 10°C below the sensor operating temperature.
Pressure Effect
The oxygen output will change in direct proportion to the barometric pressure unless
pressure compensation is enabled (see variant options, table 7).
Operating Temperature
5°C to 50°C (41°F to 122°F).
Storage Temperature (non-condensing conditions)
-30°C to +70°C (-22°F to 158°F).
Storage Pressure
10kPa – 200kPa (1.5psi - 30psi).
Thermal Time Constant
15 minutes. Time required for the O
2
signal to reach 66% of final reading when the
sensor has been subjected to a 20°C step change in ambient temperature.
Ambient Humidity
0 to 95% RH.
Altitude Range (operating)
-500m to +5000m (-1540ft to +15400ft).
