Membrane Type - YSI PRO20 User Manual

MEMBRANE TYPE

Membrane Type sets the type of membrane used on the dissolved oxygen sensor;
either 1.25 PE (Yellow) or 2.0 PE (blue). Use the up or down arrow keys to
highlight Membrane Type and press enter
Highlight the membrane type corresponding to the membrane installed on the
sensor and press enter to confirm. The enabled membrane type will have an 'X' in
the box next to it. Use the down arrow key to highlight the ESC – Exit box and
press enter to save changes and to close the membrane submenu.
The dissolved oxygen sensor is supplied with membranes specific to the sensor
type ordered and are color coded as described in the following tables.
Galvanic Membrane Kits
Item Color
5913 Yellow
5914 Blue
Polarographic Membrane Kits
Item Color
5908 Yellow
5909 Blue
Selecting a Dissolved Oxygen Membrane
Membrane Type
5913, 5908 - Yellow
5914, 5909 – Blue
Material
1.25 mil polyethylene
2.0 mil polyethylene
Material
1.25 mil polyethylene
2.0 mil polyethylene
Flow Dependence After 4 Minutes
25%
18%
to open the membrane submenu.
Faster response time and less flow
dependence than traditional Teflon®
membranes
Less flow dependence than 1.25 mil
but somewhat slower response
Faster response time and less flow
dependence than traditional Teflon®
membranes
Less flow dependence than 1.25 mil
but somewhat slower response
13
Description
Description
Typical Response Time
to 95%
8 seconds
17 seconds