User's Manual
28 II EX Users  Manual Supplement   
 7 8/12 
On page 46, under Temperature replace Storage with: 
Storage -40 C to +85 C (without battery) 
-40 C to +60 C (with battery) 
Change #2, 62942 
On page 53, replace Duty Cycle (Vdc and mVdc) with: 
Duty Cycle (Vdc and mVdc) 
Range Accuracy 
0.0 % to 99.9 %
 [1]
Within  (0.2 % per kHz + 0.1 %) for rise times <1 s. 
[2]
[1]  0.5 Hz to 200 kHz, pulse width >2 s. Pulse width range is determined by the frequency by the 
frequency of the signal. 
[2]  For 6 V dc range accuracy is unspecified. 
On page 54, under MIN MAX Recording change: 
From: 
250 s (peak)
 [1]
Specified accuracy 100 counts for changes >250 s in duration 
(add 100 counts for readings over 6000 counts)  
(add 100 counts for readings in Low Pass mode) 
To:
250 s (peak)
 [1]
Specified accuracy 200 counts for changes >250 s in duration 
(add 100 counts for readings over 6000 counts)  
(add 100 counts for readings in Low Pass mode) 










