PH-68 Waterproof pH/EC/Temperature 3 in 1 tester
- Ref Price:
-
- Loading Port:
- ANY PORT
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 g/m²
- Supply Capability:
- 10000 g/m²/month
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Intelligent pen type three in one tester, capable of measuring water and wettable solids such as soil, dough, milk, fruits, meat, etc.
Use AAA batteries, large capacity and long-lasting. Accurate and fast measurements and fewer calibrations.
Two point button calibration, automatic recognition of pH standard buffer solution.
Automatic temperature compensation ensures accurate measurement across the entire range
Automatic power shutdown effectively saves battery energy consumption.
The replaceable electrode reduces the maintenance and usage of the instrument.
Fully waterproof performance ensures complete protection of instruments in harsh environments.
Model | PH-68 | |
Range | PH | 0.00～14.0PH |
EC | 0.00~19.9mS/cm | |
Temp | 0～50℃ | |
Resolution | PH | 0.1PH |
EC | 0.1mS/cm | |
Temp | 0.1℃ | |
Accuracy | PH | ±0.1PH |
EC | ±2%FS | |
Temp | ±1℃ | |
Automatic Temperature Compensation | 0℃～50℃ | |
Battery Type | 2×1.5V( AAA Batteries) | |
Operating Temperature | 0℃～50℃ | |
Calibration | 2 points with auto buffer recognition | |
Dimensions | 207 x 32 x 36 mm | |
Weight | 100g | |
- Q: I need definitions of ship EquipmentMain switchboard:Distribution bus bars:Ship service generators:Main Engines:Prime mover:propulsion generators:propulsion motors:
- Main switchboard: Is the circuit panel board that controls both 110v and 12/24 volt lighting and accessories. Much like your panel box at home. Distribution bus bars: When adding anything electrical to a boat, you use a distribution bar located centrally instead of running wires to the batteries or panel box. There is a positive bar and a negative bar. One wire will run from the bar to the battery, and that is how the bar gets power. Most bars contain 6 or 12 screws, and you attach your addition's wires to the bar. Bars can be made to handle both 110v and 12v. Ship service generators: are usually diesel or gasoline powered motors made to produce electricy. Larger boats and ships use generators to power 110v items such as air conditioning, refrigeration, etc when away from the dock. When at the dock, a large power cord is used to feed 110v to the boat, from a dockside power pedestal. Main Engines: Are the engines used to power the boat's forward and reverse movement through the water. Prime mover: is something used within the propulsion system of a ship. It efficiently transfers power from the engine to the drive shaft.similar to a transmission in a carI think, I am not 100% sure on this one. propulsion generators: are geberators that run off the main engine. On a car we use an alternator to produce 12v for lights, etc.but to power 110v items you need a generator. propulsion motors: These could be the same as the Main Engines, or it can mean the motors that power a ship's bow and/or stern thruster, which moves the boat in a sideways direction. Used mainly for docking.
- Q: i pods,cameras,nentendos, ect
- All those are allowed on the plane. You cannot use anything that has wireless turned on - so cell phone games can be played if the wireless part of the cell phone can be turned off. Computer is OK if you can turn off wireless internet (won't work up there anyway). Please bring headphones so that you don't annoy neighbors.
- Q: I am using a piece of equipment that uses plastics hoses to connect three metal pieces (a vacuum pump, a separation chamber, and a rotating sieve). When I touch each of these to remove material I am collecting after use, I get a small shock. What can I do to prevent this?Also, there is a loose, partially exposed wire. What can I do about this? As far as I know, it has no function.
- Is it static discharge or a 60Hz thing? If it's static discharge, it'll be a a very short jolt followed by nothing. In which case you can ground your body, like to a water pipe or something earth grounded, before touching it an you'll be fine. If the shock is a steady tingling, it's likely a 60Hz line voltage thing and it means your equipment isn't properly grounded. This can happen if a hot wire is touching the metal frame or enclosure of an appliance, like your equipment, and the frame isn't grounded. Ideally, any equipment with a metal enclosure should have that enclosure connected to earth ground, usually by the third prong of the power plug. I would get an ohm meter and measure the resistance between the third prong of the power plug and the frame/enclosure. It should be close to zero ohms. If it's not, make it so. Also check inside the equipment and make sure no hot wires(like that partially exposed wire) are accidentally touching the frame. In a three pronged power plug, one prong will be hot, the second ground, and the third is an extra safety path to ground. You can also use an ohmmeter to measure the resistance from the hot prong to the metal case of your equipment. Also make sure do this with the equipment unplugged :-)
- Q: i have problem with my home electrical wiring. the negative and ground pin is live with current even when the power is switched off and when switched on all the three pins are live and most of my electrical equipments are not working. please help?
- Wow. It sounds as though you have lost your neutral and have what is called multiwire circuits in your house. Basically what is happening is you have 120 Volts on both the hot and the neutral/ground of your house. If you most of your equipment isn't working, you really have an issue you need to get looked at. Obviously I'm not standing in your house with a volt meter in my hand so I'm taking your word that the neutral and ground have volts, not current, on them. But if what you say is true then this is the most likely scenario. I strongly recommend you get a professional there quickly.
- Q: If a landlord is renting out an old home and the tenant suffers regular damage to his or her electrical equipment, would the landlord be responsible for having the building wiring updated so that such damage does not continue to occur on a regular basis? What if the cost of such repairs far exceeds the rent that the tenant would be paying? Would the tenant be legally able to break a lease without paying fines in this type of situation?
- If there are NO grounds, as you say, in the building, then anything metal that you touch would be electrified. You would be electricuted. So I find it hard to believe there are no grounds. Depending on the type of equipment you are talking about, make sure that you have the correct ampage. You cant run a 220 electrical appliance on a 110 line. All you are going to do is blow fuses or your equipment. You could also start a fire. As to the answer, Landlord is completely correct. As long as the home meets city code and passes inspections (required in MI for all landlords), then no, the landlord does not have to update the building wiring. I have 13 homes in 4 different cities in MI that I rent out, they are inspected every year or 18 months by law, and if the electrical is not up to code, then noone can live there due to the danger of fire, until it is brought up to code. And the inspectors are hard on landlords when it comes to repairs. Finish out your lease and then move if you are so unhappy. But NO, you cant break your lease because of this.
- Q: How come water shorts things out when water doesn't even conduct electricity it is the minerals in the water. If you dropped pure water in electrical equipment what would happen
- Water is actually a pretty good insulator. The water molecules themselves don't conduct electricity very well at all. Water is conductive when there are substances dissolved in the water which dissociate into ions. It's the ions which actually do the conducting. If you placed pure water on electrical equipment, you would get wet electronic equipment, with little chance for shorting out. It would actually depend on the voltages in the electron equipment. But keep in mind that pure what does contain some ions. First there is the autoionization of water to make H+ and OH-. Secondly pure water has a pH of around 5.5 to 6 due to the absorption of CO2 from the air. This will result in H+ and HCO3- ions. So pure water is not ion-free and will conduct electricity if the voltage is high enough.
- Q: I just heard tapping noises coming from the back door. The back door leads to the laundry room and multiple storage rooms. There is also all the heating and electrical equipment down there. The leak is coming from a pipe at the ceiling in a storage one, the room beside all the electrical equipment. The floor is soaked and the water is leaking a lot. Am I in danger?
- Are you in danger only if the water comes in contact with electrical wires yes have the pipe repaired call a plumber don't wait til Monday when it will be cheaper because it won't when the ceiling collapses some one may get hit with plaster board and the. You wind up with an even bigger hole . The longer you wait the more it will cost. Especially if a fire were to start remember water and electricity don't play well together some one can be electricuted
- Q: I just don't understand it, what does it mean when people say 3 phase or 2 phase Voltage, I know higher phases are used to power bigger more voltage demanding things but what does it mean?Can you get both AC and DC in each phase?Is phase just basically saying higher phase higher voltage for higher voltage equipment?How do you convert between phases?Are high phases created with the use of transformers or can they be created directly from things like wind turbines?What is the maximum and minimum phase?How does the phase effect the amps?
- Try this side. It has pretty graphics.
- Q: 1. diode2. converter3. transformer 4. mercury-arc rectifierpl provide with explanation
- transformer
- Q: I measured it with a CRO in the physics lab and I was wondering what could be its source
- That is a period of about 62 hours or 2.5 days! Are you sure you measured this with an oscilloscope, or does CRO mean something else to you? Maybe the motion of the planets, earth, moon, etc. I don't know? Do you mean a period of 4.5 microseconds? That would be 222kHz perhaps EMI from a computer, other electronic gear, short wave radio, etc. If you can clarify, I might be of more help. Edit: OK; I have a couple of ideas, but it can be DIFFICULT to find. I spent a long time trying to track down the source of 70MHz in my lab. Turns out there is a TV station (channel 4) transmitting about 1 mile away. Channel 4 occupies the space between 67.31MHz and 71.75MHz. 222 KHz has a wavelength of about 1350 meters. It takes a pretty big antenna to launch that as a traveling wave so I'm going guess its a near field source. A good way to look for it is to make a small loop antenna with a few turns of magnet wire (maybe a few 10s of cm in diameter) and hook it to your oscilloscope. Walk around with it putting it near any and all electrical equipment that is in or near your lab. Make sure to change the orientation of the coil when you are moving around. You are basically playing a game of hot and cold. Try to maximize the signal and in theory you should be near the source. Also, be suspicious of the lights. I know their source is 60Hz, but some electronic ballasts for fluorescents run at a pretty high frequency, at least 10's of KHz, you could be seeing a harmonic. Just try flipping the lights on and off looking for a change in amplitude of the signal on the scope. If this doesn't find it, then perhps it is far field? I don't know of any commercial braoadcasts at this frequency though. The low end of AM radio is around 500KHz. Maybe you have an active Ham radio operator in the neighborhood? I wouldn't think he would be transmitting all of the time though is this 'noise' always present? Hope this helps. Let me know if you find it. Dave
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PH-68 Waterproof pH/EC/Temperature 3 in 1 tester
- Ref Price:
-
- Loading Port:
- ANY PORT
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 g/m²
- Supply Capability:
- 10000 g/m²/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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