Explanation Of The "Response Time (T 95 ) - Ametek mocon Dansensor CheckMate3 User Manual

®
Dansensor CheckMate 3
Explanation of the "Response time (T
NOTE! Only valid for devices with an electrochemical (EC) O
According to the specifications the Electro-chemical (EC) O
Response time (T
95
This means that when performing consecutive measurements in areas with large differences
in the O concentrations, the device will as a minimum reach 95% of the "true" value during
2
the first measurement (9 sec.).
Example:
(See illustration below):
Last measurement was performed in i.e. 20.9% O

The following value to be measured is 1.0% O

Difference is:

20.9 - 1.0 = 19.9% O
The expected read-out value after first measuring is:

20.9 - (0.95 * 19.9) = 2.0% O
O reading
2
[%]
Start value
Difference
T value
95
"True" value
Consequently this means that if there is a large difference in the O
two consecutive measurements, multiple measurements must be performed to obtain a
more accurate result.
EN
) of 9 sec.
2
2
Difference = Start
T value = Start value
95
T=0 T=9
(1. measurement)
)"
95
sensor.
2
sensor has a
2
2
2
value "True" value
(0.95*Difference)
T=18
(2. measurement)
concentrations between
2
User Guide 19
time [sec]
P/N 300042-I
05/2019