Fisher & Paykel MR850 ユーザーズマニュアル

 

MR850 Technical Manual   *   Revision J   * Issued November 2005   *   Ref.  185041340 (185041713 internal)

 

60 

Due to upgrades performed on delivered MR850 Respiratory Humidifiers, software and 
hardware versions are listed below. 
It should be realised that possible future upgrades may change the operation of the Humidifier. 
Please note that software Versions 4.40 and 4.44 will only work with Revision A or B PCB’s and 
Version 5.12 or later will only work with Revision C, D or E PCB’s. 
 
History Change for model JHU 

A 

4.40 

19 September 1998  9885xxx00000 

First production release. 

A 

4.44 

22 October 1998 

 

Software upgrade. 

C 

5.12 

12 April 1999 

9985xxx00053 

Release of new PCB to 
accommodate change in 
temperature probe circuit 
redesign. 

C 

5.13 

5 May 1999 

 

Software upgrade. 

D 

5.13 

14 January 2000 

2000-85xxx00028 

Release of new PCB to improve 
manufacture. 

D 

5.23 

3 April 2000 

2000-85xxx01661 

Software upgrade for low flow 
control stability. 

D 

5.33 

25 July 2000 

2000-85xxx02806 

Software upgrade, allowing 
Neonatal volume ventilation 
capability.  Manual Temperature 
Compensation (TC) 
implemented. 

D 

5.34 

11 October 2000 

2000-85xxx04212 

Software upgrade to improve 
EMI immunity. 

D 

5.45 

19 February 2001 

2001-85xxx00427 Software 

upgrade. 

D 

7.00 

2 April 2002 

2002-85xxx00976 

Software upgrade. 
Improve HC speed in Non-
invasive mode. 
F&P Co-axial circuit recognition 
and control. 

D 

5.70 

14 April 2003 

2003-85JHU008266 

Software release USA only. 

D 

7.23 

31 May 2004 

2004-85JHU006084 

Added Non-heater wire 
operation. 
PTS access through serial 
command. 
Humidifier model protection. 
Remove HC. 
Software release USA only. 
 

E 

7.23 

5 July 2004 

2004-85JHU008300 

Release of new PCB capable of 
selective soldering.