YES THEY DO ..
it was not hard to hook -up a small squirrel cage fan as long as it was a round head..
JB welded it with big drain PVC pipe. and got lucky with a fairly good compression fitting..
so easy to move to one of the others..I may be letting my ITL 488 argon- PS and a seperate same brand controller that I never got around to fool with it..give it one try the day it arrived and it lasered. and its on the shelf, then when the controller arrived I tried agin and output was unchanged..
The output when it arrived 11rc was 6 or 7 mW{got from another seller] so I was hoping for double digits.. like 10mW plus.. it has the stock cooling. Fires right up.. but I do not need it ..
pics soon- make offer..PCs and cords included....
Did you catch the fine MG LPM from junktronics.. it would look perfect on my bench,
more info at the listing here:
https://www.ebay.com/itm/Melles-Gri...SPSPriorityFlatRateBox!77422!US!-1:rk:18:pf:0
I am betting higher powers can be read w/o any problems by using a ND filer or by other means (wave plate)
freeShip.. $~377.
no dibbs from me ..
Melles Griot Integrated 2-Watt Broadband Laser Power / Energy Meter+Sensor LPM
These are really handy general purpose laser power meters. They use a broadband thermopile sensor so they can be used with wavelengths from UV to deep IR. They are sensitive enough to measure sub-mW lasers all the way to 2+W lasers. They can also be used to measure the energy of pulsed lasers from 10mJ to 2J. The sensor head is adjustable height.
The 13 PEM 001/J integrated 2-watt broadband power and energy meter is a high-sensitivity instrument for measuring optical radiation from the ultraviolet to the far infrared. The instrument features a sensitive, but low drift, thermopile sensor head. The sensor disc, made from high-density graphite, does not have a painted, plated, or anodized front surface that can be easily ablated. Consequently, the thermopile has a very high damage threshold. The 13 PEM 001/J is ideal for measuring the output power of cw lasers, the average power of pulsed (quasi-cw) laser sources, and the peak power of long-pulse lasers. It can also measure the energy of a laser pulse.
- Measures cw power from 10 uW to 2 W
- Calibrated from 200 nm to 20 um (20,000 nm)
- Handles 200 W/cm2 average power, 100 MW/cm2 pulsed power
- Includes broadband (400 nm - 2 um) optical filter to eliminate thermal background radiation
- Displays in both analog and digital formats
- Adjustable tilt base for easy viewing
Measurement Specifications:
- Calibrated Spectral Range: 200 nm to 20 um (400 nm to 2 um with filter)
- Power (Energy):
- Range: 10 mW to 2 W (10 mJ to 2 J)
- Resolution: 10 mW (10 mJ)
- Range Selection: 7-position switch, 3–3000 mW (mJ)
- Offset: +/- 25 mW (mJ) with 10-turn potentiometer
- Pulse Repetition Rate (energy mode): Single pulse or 1 Hz maximum
- Maximum Pulse Width: 100 msec
- Noise Equivalent Power (Energy): 10 mW (10 mJ) rms
- Drift: Less than 15 mW over 60 min
- Response Time: <0.5 sec
Detector:
- Type: 10 mm diameter large-area thermopile - high-density graphite disc
- Uniformity: +/-1% over central 8 mm
- Maximum Power Dissipation: 3 W
- Maximum Energy Density:
- ~1 J/cm2 for pulse width t ≥ 10-7sec
- ~t/10-7 J/cm2 for pulse width t ≤ 10-7 sec
- (e.g., ~10-5 J/cm2 for pulse width t = 10-12 sec)
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- no dibbs from me ..
