- Heat Settlement: 0o so you can 45oC (32o so you’re able to 113oF) ±dos.5% reliability -20o so you can 0oC and you can 45o in order to 65oC (-4o to help you +149oF and you can 112o so you can 148oF) ±5.0% accuracy
- Altitude Compensation: Less than sea-level in order to at the very least ten,000 foot.
- DIMENSIONS: 2-1/4 in strong x cuatro-1/4 inches higher x 4 ins large (5.7 centimeters strong x ten.8 centimeters large x 10.dos centimeters wide). Proportions were key shelter however, ban hose barb and you will belt clip.
- WEIGHT: 23 ounce. (652 g)
- CASE: Instance plastic material was electrically conductive to minimize radio frequency interference; an elective fabric situation can be obtained having pump safety through the rough utilize instance below ground mining otherwise design and you may demolition performs areas
- SERIAL Amount Identification: On the area of the case according
to the battery power (are count into the interaction with Zefon)
Useful Dysfunction from Operation
The new Companion ELF Pump consists of a rechargeable-battery package, a system-passionate push, the ELF sensor, while the digital circuit to deal with and display the new move speed.
Brand new cells is actually connected into the show which have a recently available restricting resistor so that use in dangerous atmospheres (see “Warnings”). Brand new prepare also offers a great PTC resistor which serves as a self-resetting routine breaker to cease damage to the fresh package if your returns terminals are eventually shorted. Good thermal cutoff covers facing destroy away from high heat conditions within the this new NiMH battery pack.
The engine-passionate push contains a keen inlet pulsation dampener, a diaphragm pump, and you can silicone polymer rubber inlet and you may exhaust regulators. The diaphragm is actually inspired of the engine to make one push coronary attack with each wave. The fresh pulsation dampener acts as a flexible stores chamber in order to easy the person push pulses to reduce their effect on new testing equipment attached to the push inlet.
Brand new ELF alarm include an excellent laminar flow ability and you may a great tension alarm. Most of the air circulation through the pump entry from the deplete port of your push and you may from the laminar flow element. The new feature was a hollow cylinder of porous stainless steel. The atmosphere streaming through the narrow passages in the cylinder supplies an atmosphere pressure difference in the outer and internal walls of the brand new cylinder. It improvement are tracked of the involvement with the fresh high and reasonable stress taps regarding a sensitive and painful differential stress alarm. The fresh new electricity rule regarding sensor is actually an excellent linear current, that’s truly about air move from the laminar ability. Which laws is actually than the circulate put point in the newest electronic routine which can be regularly manage this new circulate on put area. Any departure inside disperse speed are felt together with engine strength is actually modified in order to maintain brand new predetermined circulate rate. When it comes to a clogged move or procedure outside the push capabilities the spot where the circulate can not be brought to contained in this ±0.1 LPM of your place section, brand new flow fault Contributed might be lighted.
Contributed Signal Operation
- The fresh new Manage/Hold Contributed ensures the consumer that the tool are doing work, even in poorly lit, loud environments.
- The Work at/Keep Added also implies this new Keep setting. In the event the push is actually switched to hang, new push closes down, the newest timekeeper stops, and also the Led are switched so you’re able to a flashing function. If Focus on/Hold key was forced again, the latest pump have a tendency to restart therefore the timekeeper is going to continue from its “hold” really worth.
- The low BATT Added implies procedure of lowest power identification routine. In the event that electric battery falls so you’re able to 4.step 1 volts, the new circuit causes new push to shut off, the newest timekeeper to stop, and also the Lowest BATT Lead to light. So it restrictions subsequent power drain to just a few milliamperes, which, therefore, helps prevent deep discharging and you may battery pack wreck upon recharging. It also helps steer clear of the invalidation of one’s sample becoming drawn, since the timekeeper locations the genuine test some time and new move speed is regulated to enough time regarding sealed-down.