ThermovisionFLIR SR Series Installation and Operation Manual

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6  CARING FOR YOUR SR-SERIES THERMAL CAMERA 
 
Your SR-series camera images through a lens that is made from material that is transparent to 
long-wave infrared energy. This lens is designed for the harsh outdoor environment and has a 
coating for durability, but may require occasional cleaning. FLIR Systems Inc. suggests that you 
clean the lens when image quality degradation is noticed or excessive contaminant build-up is 
seen on the lens.  
The camera housing has a durable coating and the rugged protective window is designed to 
withstand normal cleaning. Rinse the camera housing with low pressure fresh water to keep it 
clean. If the front window of the camera gets water spots, wipe it with a clean soft cotton cloth 
dampened with fresh water. If the window requires further cleaning, use a soft moist cotton-
based cloth with isopropyl alcohol or dish soap. 
Do not use abrasive materials, such as paper or scrub brushes as this will possibly damage the 
lens by scratching it. Only clean the lens when you can visually see contamination on the 
surface. 
6.1 Temperature 
The SR-Series camera has an operating temperature range of -40 to 55°C. Choose an 
installation location so that the camera is not subject to temperature extremes that exceed this 
range. Do not expose the camera to direct sun without the sun shroud installed. 
6.2 Maintenance 
If you have a problem with your thermal camera, do not attempt to repair it yourself. The SR-
Series camera core is a sealed unit and cannot be opened or serviced in the field. Consult your 
installation dealer or FLIR Systems Inc. for repair information.  
Lens Cleaning 
Materials: 
Optical-grade tissue (e.g. Edmund Industrial Optics P/N 52105 or any similar product) 
Pure water (de-ionized or other) 
Isopropyl alcohol (IPA) 
Saturate a piece of the lens tissue with the water and drape it over the lens. Let the surface 
tension of the water pull the tissue onto the lens surface and then drag the tissue across the 
lens surface. Repeat several times with different pieces of tissue. 
Repeat the same step using IPA instead of water. Drag the final piece of tissue over the lens 
several times to prevent pooling, which could leave a residue behind. 
Caution! Do not attempt to service the camera or make modifications to the camera core or 
electronics for any reason. Doing so can cause permanent damage and will void the 
warranty.  
						

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7 TROUBLESHOOTING PROBLEMS 
Video not displayed on monitor  
If the camera will not produce an image, check the video connection at the camera and at your 
display. If the connectors appear to be properly engaged but the camera still does not produce 
an image, ensure that power has been properly applied to the camera and the fuse is not blown. 
Cycle power to the camera and listen for the FFC shutter to click. Absence of this sound is an 
indication of lack of power or a bad power board. If the camera still does not produce an image, 
have an authorized service representative make the appropriate repairs. 
Noisy image 
A noisy image is usually attributed to a cable problem (too small in diameter, too long, or inferior 
quality) or the cable is picking up electromagnetic interference (EMI) from another device. 
Although coax cable has built-in losses, the longer the cable is (or the smaller the wire 
gauge/thickness), the more severe the losses become; and the higher the signal frequency, the 
more pronounced the losses. Unfortunately this is one of the most common and unnecessary 
problems currently plaguing video security systems as a whole. 
Cable characteristics are determined by a number of factors (core material, dielectric material 
and shield construction, among others) and must be carefully matched to the specific 
application. Moreover, the transmission characteristics of the cable will be influenced by the 
physical environment through which the cable is run and the method of installation. Use only 
high quality cable and be careful to match the cable to the environment (indoor or outdoor).  
For long distance cable transmissions, consider using fiber optics, baluns, video amplifiers, or IP 
video encoders to improve the quality of transmission. 
Image out of focus 
The camera systems have a fixed-focus lens (focused at infinity at the factory) and the lens 
focus is not field-adjustable. Each camera has a minimum focus distance, as listed in the 
specifications section (SR-Series Camera Specifications
). An out-of-focus object may be too 
close to the camera and within the minimum focus distance. 
Image too dark or too light 
By default the SR-Series cameras use an Automatic Gain Control (AGC) setting that has proven 
to be superior for most applications, but a particular installation may require an adjustment to 
the AGC settings. For example, a very cold background (such as the sky) could cause the 
camera to use a wider range than appropriate. Refer to section 5.3 Configuration and Control
 
for information about how to make adjustments to the image generated by the camera. You may 
need to consider adjusting the AGC Region Of Interest (ROI) if the sky consumes a significant 
portion of your image, because the sky is considerably colder than most terrestrial 
temperatures.  
						

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Performance varies with time of day 
You may observe differences in the way the camera performs at different times of the day, due 
to the diurnal cycle of the sun. Recall that the camera produces an image based on temperature 
differences. At certain times of the day, such as just before dawn, the objects in the image 
scene may all be roughly the same temperature, compared to other times of the day. Compare 
this to imagery right after sunset, when objects in the image may be radiating heat energy that 
has been absorbed during the day due to solar loading. Greater temperature differences in the 
scene generally will allow the camera to produce high-contrast imagery. 
Note: Under conditions such as just before dawn when it appears the camera has low contrast 
due to many objects at roughly the same temperature (typically inanimate objects), a person or 
an animal walking through the scene during this time will be quite noticeable and cause the 
AGC to produce a high-contrast image.  
Eastern or Western Exposure 
Some users will choose to mount the camera pointing directly east or west, and this may cause 
the sun to be in the field of view during certain portions of the day. We do not recommend 
intentionally viewing the sun, but looking at the sun will not permanently damage the sensor. 
However, it may cause image anomalies and it may take some time for the camera to recover. 
The amount of time needed for recovery will depend on how long the camera was exposed to 
the sun. The longer the exposure, the longer the recovery time needed.  
Image freezes 
By design, the camera image will freeze momentarily on a periodic basis during the Flat Field 
Correction (FFC) cycle. Refer to section 5.4 Flat Field Correction (FFC)
 for more information 
about this. It is possible to change the interval used for FFC with the FLIR Camera Controller 
GUI; refer to the Tau Users Manual for more information.. The software is included in CD form 
with the SR-Series camera, but can also be downloaded at: 
http://www.flir.com/cvs/cores/resources/software/tau/
. 
 
 
  
						

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8 SR-SERIES CAMERA SPECIFICATIONS 
Feature Specification 
Input Power  See below 
Dimensions, Weight  See below 
Sensor type  Uncooled Microbolometer 
Spectral range  7.5 to 13μm 
Focal Length  SR-304, SR-606                         100 mm 
SR-309, SR-612                           50 mm  
SR-313, SR-618                           35 mm 
SR-625                                         25 mm 
SR-324, SR-112                           19 mm 
SR-334, SR-117                           13 mm  
SR-348, SR-124                             9 mm 
Minimum Focus3  SR-304, SR-606                         160 m 
SR-309, SR-612                           71 m  
SR-313, SR-618                           26 m 
SR-625                                      13.1 m 
SR-324, SR-112                           10 m 
SR-334, SR-645, SR-117            4.4 m  
SR-348, SR-124                          2.1 m 
Pixel pitch  SR-1xx & SR3xx                          25 μm             
SR-6xx                                         17 μm 
Input power range  14V to 32VDC       Voltages as measured at the input to the  
18V to 27VAC          electrical interface board. 
Fuse  4 Amp fast-blow mini blade fuse 
Ex. Bussman BK/ATM-4 or equivalent 
Description:  FUSE - 4AMP, 32VOLT, BLADE TYPE 
Operating Temp. Range  -40°C to 55°C (-40°F to 131°F)  
Storage Temperature  -50° to 85°C 
Environmental Rating  IP66 
Lens Heater  Thermostat controlled  
Analog video   NTSC or PAL (EIA-170 or CCIR 624, respectively). 
Camera focus  Fixed focus (no adjustment needed) 
Serial interface   RS-232, RS-422 (DIP switch configurable) 
User Control   FLIR Camera Controller GUI (Windows-based software) 
Note: These specifications are subject to change without notice.  
 
                                                 3 Minimum distance at which target will be in focus.   
						

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Input Power  
The electrical interface board provides a screw-terminal jack for receiving 14 to 28 gauge tinned 
leads for input power.  The following table describes the input power requirements at 25o C.  
Peak ratings can occur in cold environments when the heater circuits on. 
 
Parameter Requirement True PowerApparent 
Power Comment 
AC Input 
Voltage 18 to 27 VAC  
  Voltage as measured at the input to 
the electrical interface board. 
Nominal / 
Peak Current 
(TRMS) 200 /  850 mA 
200 / 850 mA 
200 / 450 mA 
200 /  1.2 A 
200 / 2 A 2.7 / 14 W 
2.7 / 14 W 
2.7 / 7 W 
2.7 / 17.3 W 
2.7 / 36 W 5 / 21 VA 
5 / 21 VA 
5 / 11 VA 
5 / 29 VA 
5 / 48 VA SR-645/-324/-334/-348 at 24 VAC 
SR-625 at 24 VAC 
SR-618/-313 at 24 VAC 
SR-309/-612 at 24 VAC 
SR-606/-304 at 24 VAC 
DC Input 
Voltage 14 to 32 VDC  
  Voltage as measured at the input to 
the electrical interface board. 
Nominal / 
Peak Current 
(TRMS) 100 / 410 mA 
100 / 410 mA 
100 / 240 mA 
100 / 458 mA 
100 / 980 mA 2.41 / 9.8 W 
2.41 / 9.8 W 
2.41 / 5.8 W 
2.41 / 11 W 
2.41 / 25 W 
 SR-645/-324/-334/-348 at 24 VDC 
SR-625 at 24 VDC 
SR-618/-313 at 24 VDC 
SR-309/-612 at 24 VDC 
SR-606/-304 at 24 VDC 
 
Table 2 . Input Power Requirements 
Note:  The power measurements for the 160x120 models are similar to those of the SR-324, 
SR-334, and SR-348. 
 
 
 
Warning!  Proper ESD protocol should be followed while working inside the unit.  
If the terminal block is removed during installation, be extremely careful to maintain the proper 
orientation when connecting the leads and reinserting the connector to the camera. 
Warning! Do not connect leads or remove/reinsert the terminal block when power is active.  
						

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8.1  SR-Series Camera Dimensions 
 
 
Figure 8-1: Camera Side View 
 
 
 
Figure 8-2: Camera Rear View 
Dimension  All cameras except SR-304 & SR-606 SR-304 & SR-606 
Length  10.5” (26.7)  15” (38.14) 
Width  5.0” (12.7)  5.0” (12.7) 
Height 5.7” (14.4) 5.68” (14.4) 
Weight  4.6 lb (2.1 kg)  6.5 lb (2.9 kg) 
Note: Values in parentheses are in centimeters, all others in inches. 
Length
Height 
Width 
						

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Figure 8-3: Enclosure Mounting Foot 
 
9 REFERENCES 
FLIR Standard Resolution Product Specification Document Number: 427-0014-00-09 
FLIR Tau GUI Users Manual Document Number TAU-0035-00-10 
Pelco EH2500 Series Enclosure Product Specification 
NTSC EIA-170  
PAL CCIR 624 
MIL-STD-810E Environmental Testing 
MIL-STD-188-124B, Grounding, Bonding and Shielding 
IEC 60529 Degrees of protection provided by enclosures (IP Code)  
IEC 60068-2-64, Environmental Testing Part 2 Vibration testing 
Cenelec EN61326 CE Mark (Class A) 
FCC Part 15; Subpart A  EMI/EMC 
Grounding Practices: IEEE Std. 1100 (The Emerald Book).
 
National Electrical Code, NEC-70-1996 
  
4.00 (10.08)
2.00 (5.08)
1.00 (2.54) 
1.00 
(2.54) 
2.00 
(5.08) 
						

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Support 
If you have questions that are not covered in this manual, or need more information, contact 
your local FLIR service representative or, 1 (877) 773-3547 inside the US.   
In the US, you can reach FLIR Customer Support at (888) 747-FLIR (747-3547).