>>> 'blimp' problem from voros -- Thu Jul 27 09:27:22 1989 <<<

Active monitoring display stopped again around midnight.
Dave suggested to reset it which I did. Now it is displaying data.
I used the c and r commands, and also the i and f options in the blimp program

>>> 'blimp' problem from phillip -- Mon Aug 14 13:08:36 1989 <<<

The cable CN1 has been added from the cwikscan ln chase to
the chase CA2,tauruschase.
This facilitates installing the LN and O2 lab feed pressure
sensors. 

>>> 'blimp' problem from evan -- Tue Oct  3 16:39:11 1989 <<<

The 4-20 mAmp output board has been installed in the CHWS monitor.   This
output has been wired to be sensor #37.  It is calibrated and currently
running. (Check sensorstat).  The alarm value has been set at 60 deg F fpr
now.  Phill and I will monitor the readings and decide on an appropriate
alarm and interval value.

>>> 'blimp' problem from evan -- Fri Oct  6 15:22:06 1989 <<<

A 'T' T/C sensor has been placed in the supply air duct in the rodi shack.
It it sensor #38.  The readings are lower than expected but the junction
and 4-20mA transmitter have been calibrated.  A check of the temp at other
points in the duct nearby revealed a +/- 3 deg. difference.  The T/C may
have to be relocated further down the duct to where the air is better mixed.
In the meantime, the readings are 4-5 deg. lower than what the old measurement
used by the lab.  The alarm should still signal if too great of a rise
occurs.  

>>> 'blimp' problem from phillip -- Mon Oct  9 13:48:48 1989 <<<

Please ignore the last batch of automatic messages generated by blimp.
Long awaited fuses arrived and were installed. This caused
all the newly fused ports to be read as trouble momentarily.



 

>>> 'blimp' problem from evan -- Mon Oct 16 22:36:27 1989 <<<

problem: started getting alarm messages at 33"
cause: n2 level low but delivery has been scheduled
solution: edited sensorcap to set alarm level at 22". this will be changed back
after delivery.  ljmassa and i have briefly discussed making an addition
to sensors which would allow for temporary changes in reporting functions
possible for situations like this. also in cases such as the filling of the
ln tank. 

>>> 'blimp' problem from bob -- Tue Jan  2 07:43:28 1990 <<<

The resistivity reported on sensorstat reads 16.74 constantly.
When the sensor on the system is switched the resisistivity monitor 
records a change of over 1 megohm however sensorstat doesn't seem 
to follow. A check of the system is needed.

>>> 'blimp' problem from ljmassa -- Sat Jan  6 00:25:32 1990 <<<

There was actually a problem with the reading of all sensorsThe data
that was showing as unchanging was data from one sample set, the same
one all the time.  Problem was in blimpd. Fixed by rebooting krypton to
restart everything.  Restarting without reboot didn't work.
			-ljm

>>> 'blimp' problem from evan -- Fri Feb  2 15:29:07 1990 <<<

The air temp sensor has been turned off during relocation of the T/C.
This was done by placing a '#' at the beginning of it's sensorcap description.
This will be removed when the T/C is back online.

>>> 'blimp' problem from evan -- Mon Feb  5 15:22:12 1990 <<<

The air duct sensor was moved to a new location further downstream from the
A/C unit.  Monitoring the T/C with our Beamex precision thermometer revealed
that the air temp cycles over a 5 degree F. span due to the A/C control feedbackmechanism.  The sensor readout will therefore fall between 63-68 degrees during
normal operation.  i.e.-If the sensorstat reports 63 degrees, it doesn't mean 
that the air is a constant 63 degrees, but rather it is within the normal 
operating range.

>>> 'blimp' problem from evan -- Tue Feb  6 15:30:37 1990 <<<

There are now contact closure sensors on the tylan bank3 pumps.  A low oil
pressure alarm will be mailed if the oil pressure drops below 6 psi.
I will be sending a test alarm on tylan10 in a few minutes.  THIS IS ONLY
A TEST.  

>>> 'blimp' problem from evan -- Wed Feb 28 16:54:32 1990 <<<

The house air pressure is now on sensor #39. It reads the incomming pressure
before the check valve so it should not read n2 backup pressure.  The actual
pressure is offset by -6 psi to reflect the pressure drops across valve and
filters, and give readout of pressure supplied to lab.  ie: 90 psi at sensor
gives 84 psi as lab supply.  

>>> 'blimp' problem from evan -- Fri Mar  2 11:00:49 1990 <<<

The lab air temp sensor is being moved by Paul.  Please ignore any alarms
you have received today.

>>> 'blimp' problem from evan -- Mon Mar  5 11:48:57 1990 <<<

The lab air temp sensor is back online but needs to be recalibrated.
The currents values and within 1-2 degrees.

>>> 'blimp' problem from evan -- Mon Mar  5 11:52:37 1990 <<<

Sensor Sensor #40 is online for reading ICW pressure.  The calibration needs to
be checked but is close.

>>> 'blimp' problem from evan -- Mon Mar  5 15:55:32 1990 <<<

Sensor 38, Lab air temp, has been calibrated in it's new location.  
Readings from this time on are accurate.  Ignore previous alarm messages.

>>> 'blimp' problem from evan -- Mon Mar  5 15:57:03 1990 <<<

Sensor 40, ICW pressure, has been checked for calibration.  
Readings from this time on are accurate.  Ignore previous alarm messages.

>>> 'blimp' problem from evan -- Thu Mar  8 11:18:21 1990 <<<

Alarms on LPCVD pumps this morning were due to having the pumps off
while repairing the circuit breaker on tylan9.  Please ignore them.
Alarms after 11:18:00 are valid.

>>> 'blimp' problem from voros -- Thu Mar 22 09:00:21 1990 <<<

From: evan (Evan Stateler)
To: bob
Subject: Re: di 
Date: Thu, 22 Mar 90 08:06:29 PST

I checked and everything was normal.  We have been getting more frequent
incorrect blimp readings lately.  There seems to be something in the
sensorstat parsing routine that messes up the date/time data which sometimes
gives false readings on alarms.  The sensorhist files all look ok.  
With ljm deep into upgrades, should smiles get involved? 
There now are 1-3 faulty alarms a week.  Perhaps I can save them into a file
for awhile to look for a trend?

>>> 'blimp' fix from evan -- Tue May  1 16:55:50 1990 <<<

Sensor #28 is now reading out the exhaust system vacuum pressure.  The units are
not calibrated exactly but are in Torr relative to atmosphere.  No alarm
limits have been set until a normal range is deduced.
