Grant Squirrel OQ606 User manual

Logger manual
Squirrel
OQ606
DATA LOGGINGDATA LOGGING

Page 2
Squirrel OQ606
Logger manual
Version 2.2 - July 2005

Contents
1 Operating the OQ606 without a PC......................................4
2 Connecting the probes..........................................................5
3 Heat insulating box................................................................6
4 Logging...................................................................................8
Page 3
Squirrel OQ606
Logger manual
Version 2.2 - July 2005

1. Operating the OQ606 without a PC
1.1 Installing Batteries
The Squirrel uses three AA* size batteries located under its removable battery cover. To
change the batteries:
<Remove the fixing screw for the Squirrel battery cover.
=Lift the battery cover away from the body of the logger:
>Fit the new batteries to the clips, noting that the orientation is marked with a +
symbol on the circuit board:
?Refit and secure the battery cover.
Page 4
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
*Maximum operating temperature for AA alkaline batteries supplied is 50°C

2. Connecting the probes
The OQ606 will be supplied complete with up to six probes, each with an integral cable.
The is fitted with six thermocouple K-type connector sockets. Connect each probe to an
input socket, as shown below. The logger will recognise which channels are being used. If no
probes are connected, the Squirrel will not start logging.
OQ606
Note that each plug has a wide terminal and a narrow terminal. Ensure that the plug is orientated
correctly before making the connection.
The logger display confirms which probes are connected. Press the button on the logger twice
to obtain the METER display showing details of the first probe, which will look similar to the
following:
Repeatedly press the button to scroll through the details of each probe in turn, confirming that
the probes are working correctly.
METER c h 3
1 8 0 . 5 .C
Func
Page 5
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
Set

3. Thermal barrier
3.1 Thermal barrier
The thermal barrier enables the use of the OQ606 at elevated temperatures.
Place the OQ606 in the insulating box, ensuring that the probe leads are not trapped but
are passed through the barriers cable guide ( ).
Model number CI606-Q
Physical details:
Dimensions (l x w x h) 230 x 230 x 110mm.
Weight 4kg
Thermal characteristics: 250ºC (482ºF) for 45 minutes.
Other time/temperature combination boxes are available on request. Please call us to
discuss your requirements.
WARNING: To ensure that the Squirrel logger does not exceed its maximum operating
temperature it should always be placed inside its protective thermal barrier before being
placed into the oven.
Do not touch surfaces which become hot during high temperature operation.
Page 6
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
A
A

3.2 CI606-Q Thermal Barrier Performance
Dimensions: (230 mm/230 mm/100 mm)
Table of Results:
T initial =20°C T initial=30°C
T oven (°C) T oven (°C)
Time to reach 60°C Time to reach 60°C
100
150
200
250
300
100
150
200
250
300
180 minutes
95 minutes
68 minutes
58 minutes
52 minutes
130 minutes
77 minutes
60 minutes
51 minutes
46 minutes
Note: T initial is the initial temperature of the thermal barrier before placing it in the Oven.
Page 7
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
Time to reach 60°C
0
0 50 100 150 200 250 300 350
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
Temperature (°C)
T initial=20°C
T initial=30°C

4. Logging
4.1 Commencing logging
This section describes the operation of the Squirrel OQ606.
The Squirrel OQ606 oven logger measures temperatures over a preset time period. The
recording period depends on the recording interval and the number of runs that have
been configured.
The logger is pre-programmed by Grant with default values which allow you to use the
logger without programme it .
Default settings allow the logger to be started and stopped manually with the logger
buttons. The defaults are as follows: the logging interval is every two seconds, logger
memory is set to record up to eight runs each of three hours and a default 'Product Cure'
specification of 180ºC (356ºF) for 10 minutes is installed.
Results of a run can be evaluated immediately afterwards by directly connecting the
logger to a portable printer (specified by Grant). In addition, the logger can be
programmed with 'Product Cure' specifications.
4.2 Overview of the operating buttons
The operating buttons allow the setup of all of the major functions of the logger.
using software to
Func Sel Set
selects the function. chooses the channel
or sub function.
changes any
of the settings.
4.3 To start logging
To switch the data logger on, press . If the data logger is left on it will automatically
switch off after 20 seconds.
Func
Func
Press until the following is displayed: LOG
c l e a r
LOG
Set h o l d t os t a r t
Now press and hold to start logging:
Page 8
Squirrel OQ606
Logger manual
Version 2.2 - July 2005

L
L
L
L
L
O
O
O
O
O
G
G
G
G
G
w
o
o
an g
n
n
t
i i
When the display changes to show that
logging is waiting to start or has started,
the button may be released. The display
will then turn off within 20 seconds to
conserve power.
4.4 Stop logging
Manually stopping the logger will override any preprogrammed automatic 'stop trigger'.
After recording has stopped, the screen will indicate whether the latest run has met its
Cure Specifications (if programmed). For more graphical analysis, either print the results
to a portable printer or download the run into the software for detailed analysis.
Press to wake up the logger:
Press until the following
is displayed
Func
Func
Hold to stop logging:
Set
h
c
o
u
l
r
d
e
t
1
o
0 0
s
%
t o p
4.5 Print run
PRINT C o l o u r
o f f
Page 9
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
Now connect the logger to the printer
with the printer cable (LC74)
and the serial to parallel converter,
(connect converter power supply and
check that the power indicator light is
on) press and hold the set button to
Start printing:
PRINT
h o l d t os t a r t
C o l o u r

T
P
B
I
R
A
M
I
T
E
N
T
T
E R Y
4
1
1
2
3
1
5
5
:
:
:
:
1
0
7
2
d a
n
9
t
p
5
e
r
%
gre s so
I
When the display changes to show
that printing has started, the button
may be released. The display will
then turn off within 20 seconds to
conserve power.
4.6 Battery life indication
4.7 The TIME and date function
This displays the approximate
percentage of remaining capacity.
The estimated battery life assumes
default settings. The battery life
estimate assumes that the working
temperature will be between -20°C
(-4ºF) and +65°C (149ºF). At -30°C
(-22ºF), the battery life can be
decreased to 10% of normal. Three
AA cells should give 200 hours
operation using the logger default
settings
This displays the real time and date
on two lines. The time clock is in a 24
hour format (HH:MM:SS). PaintView
or PaintWise32 automatically informs
you if the logger clock needs
updating.
Page 10
Squirrel OQ606
Logger manual
Version 2.2 - July 2005
C o l o u r
Func
WARNING: The Squirrel OQ606 cannot print in colour when connected to the Hewlett
Packard Hp350 portable printer, so users must ensure that this printer is loaded with a
Black ink cartridge. However when connected to most other HP DeskJet printers the
button can be used to select either the 'Black' or the 'Colour' print mode, as shown below.
Set
PNT b l a c k
f
RI
o f

Page 11
Squirrel OQ606
Logger manual
Version 2.2 - July 2005

Grant Instruments
(Cambridge) Ltd
Shepreth,
Cambridgeshire
SG8 6GB
Tel: [phone]
www.grant.co.uk
[email protected]
Fax: [phone]
Printed in England - Squirrel/OQ606/18076/UK