YSI 58 - Manual (Page 20)

compensate automatically for changes in membrane permeability caused by variations in temperature.
However, the thermal response of this sensor is much slower in air or gas than the membrane’s
response to a change in gas temperature. Therefore, rapid temperature fluctuations are liable to
prevent the automatic compensation that is necessary for accurate measurement. This is not a problem
is liquid measurements.
4.5 RECORDER OUTPUT
Output at full scale is 1VDC. (0.0005V = 1 digit). Use a recorder with input impedance of at least
50K OHM, and operate it with the terminals ungrounded.
A recorder output plug is provided. Cable for connecting the recorder must be supplied by the user.
YSI Incorporated YSI 58 DO Meter 16