background image

 

 

 

Display content 

Display on control unit shows measured light intensity value as well as other related 
information like actual range, measurement mode, selected input filter and so on. The layout 
of the display is described in the table below. 
 

Switching status 

 

 

Mode 

Overflow status 

 

 

Range number 

Intensity value 

Reference 1 

Reference 2 

Diagnostic mode 

Range 

[dB] 

[dB] 

Filter 

 
Meaning of display messages is described bellow. 
 

Display field 

Possible values 

Description 

SWITCHING 

Device is switching between ranges. Intensity 
value is not valid at the moment. 

Switching status 

<blank> 

Device is not switching range. 

OVERFLOW 

Light detector is saturated by ambient light or 
too strong signal from light source. . Intensity 
value is not valid at the moment. 

Overflow status 

<blank> 

Light detector is not in overflow condition. 

Intensity value 

<value in AU> 

Actual value of intensity in AU. Selected 
range is already taken into account. 

Range 100 

Selected range 0..100 AU (most sensitive) 

Range 1000 

Selected range 0..1000 AU 

Range 10000 

Selected range 0..10000 AU 

Range  

Range 100000 

Selected range 0..100000 AU (less sensitive) 

Reference 1 

<value in dB> 

Relative change in intensity since the 
reference 1 was set expressed in dB.  

Reference 2 

<value in dB> 

Relative change in intensity since the 
reference 2 was set expressed in dB.  

AUTO 

Device is in automatic mode. 

Mode 

MANUAL 

Device is in manual mode. 

RANGE 0 

Selected range 0 (0..100 AU)  

RANGE 1 

Selected range 1 (0..1000 AU) 

RANGE 2 

Selected range 2 (0..10000 AU) 

Range number 
(according to codes used 
when operating device from 
remote computer) 

RANGE 3 

Selected range 3 (0..100000 AU) 

<blank> 

Device is in standard measurement mode. 

DIAG ZERO 

Device is in diagnostic mode ZERO. 

DIAG FULL 

Device is in diagnostic mode FULL SCALE. 

DIAG NEG 

Device is in diagnostic mode NEGATIVE 
FULL SCALE. 

Diagnostic mode 

DIAG CMR 

Device is in diagnostic mode COMMON 
MODE REJECTION. 

FILTER SLOW  Slow input filter selected. 

Filter 

FILTER FAST 

Fast input filter selected. 

Summary of Contents for FOTOMETER 2008 COOL

Page 1: ...FOTOMETER 2008 COOL Light attenuation meter users guide ...

Page 2: ...TIC MODE 6 SWITCHING BACK TO MANUAL MODE 6 OPERATING DEVICE IN MANUAL MODE 6 SWITCHING TO MANUAL MODE 6 SWITCHING BACK TO AUTOMATIC MODE 6 SWITCHING TO LESS SENSITIVE RANGE 6 SWITCHING TO MORE SENSITIVE RANGE 6 USING REFERENCES 6 SETTING REFERENCE 7 USING INPUT FILTER 7 SETTING INPUT FILTER 7 DIAGNOSTIC MODES 7 SWITCHING TO DIAGNOSTIC MODE 7 BASIC MAINTENANCE TASKS 7 REPLACING BULB IN THE LIGHT SO...

Page 3: ...service must be provided by a qualified electrician only Device may be operated only in room environment between 15 and 40 C with non condensing humidity When moving device from cold environment to room temperature always allow the device temperature to accommodate to room environment to avoid moisture to condensate on the device before switching the device on Setting up the device Cable connectio...

Page 4: ...nt air flow along the front window preventing the dust from burning chamber from sticking on the window Air purge inlet is located on the rear cover It is the topmost inlet on this side of unit The inlet must be connected to the compressed air source using appropriate pressure reduction valve and the regulation valve so the pressure and flow rate could be easily adjusted Maximum allowed pressure c...

Page 5: ... range is already taken into account Range 100 Selected range 0 100 AU most sensitive Range 1000 Selected range 0 1000 AU Range 10000 Selected range 0 10000 AU Range Range 100000 Selected range 0 100000 AU less sensitive Reference 1 value in dB Relative change in intensity since the reference 1 was set expressed in dB Reference 2 value in dB Relative change in intensity since the reference 2 was s...

Page 6: ...anual mode as well Operating device in manual mode In manual mode ranges must be switched manually by the user When range is manually switched device displays SWITCHING message and goes through the switching procedure in same manner as in automatic mode Switching to manual mode While in automatic mode you can press AUTO MANUAL button to switch to manual mode By pressing RANGE RANGE or DIAG while i...

Page 7: ...e Negative full scale Positive input of A D converter is grounded Negative is switched to the voltage reference Common mode rejection Both differential inputs of A D converter are switched to voltage reference Switching to diagnostic mode To switch to diagnostic mode press DIAG button First diagnostic mode is selected With every consecutive press of DIAG button device will switch to next diagnosti...

Page 8: ... printed circuit board on which the bulb is fixed Insert light source assembly back to cooling jacket Make sure it is properly positioned at the conical support flange at the front of cooling jacket The conical flange is visible through the front window Slide the teflon back cover on the cable to its place and press it firmly until the cover is aligned with the outer chassis Slide the metal sheet ...

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