SD-W300 Temperature and Humidity Controller

                    Factory direct supply, all goods can be customized,
                                    OEM/ODM is available.


Overview
    SD-W300 temperature and humidity controller can most carry two ways temperature sensor and two ways condensation sensor, can monitor the change of the temperature and humidity of lots of small environments. This product can be used in electrical controlling equipments such as high and low switch cabinet, box substation, terminal box, etc. it has advantages of high precision and capacity of resisting disturbance, work with element that can heat and get rid of dampness to achieve controlling the temperature and humidity of the environment.

Technical Parameter

 

 Main function 

1.The temperature and humidity logic control
A Temperature: when the temperature of the environment is lower than 5ºC, the instrument automatically fire the heater to heat, once the temperature of the environment rise to 15ºC, the instrument automatically stop heat.
B Condensation: when the environment humidity is higher than 93%RH condensation start control spot, the instrument will automatically fire heater to get rid of environment dampness, to avoid condensation, once the condensation will not happen, the instrument will stop heating.
2. Disconnection warning
When the heater break down and can not satisfy the requirement of heating, the breakdown pilot lamp will give an alarm. Meanwhile, warning output is usually close
3 .Force to heat by hand
When the temperature of the environment is too low or humidity is too high, the instrument has manual switch, put it to "manual" position, then the instrument will be forced to heat. When no need to force to heat, put the switch to "automatic" position, the instrument will return to automatic monitoring state.

Installation 

1.Outline dimension

2.The install of the sensor
The condensation sensor and the temperature sensor are integrated (one box has one temperature and one condensation)
The external form is as following. Fix the sensor by using two ∮4mm screw.
 


 Test and Inspection
1.Connect wire as diagram
2.If need to force to heat, press manual button, and two way heating lamp light.
3.If don't use the condensation sensor, terminal corresponding must be shorted.
4.The controller must connect the electricity when test the condensation sensor, take a cup of boiling water (or below) to the condensation sensor for a moment, the heating lamp of the controller brighten, the heater works. It illustrates that the controller and condensation sensor work normally.

 

Agricultural Machinery Accessories Parts

Agricultural machinery parts more generally summarizes the machinery parts associated with agricultural production, the coverage is very wide. Such as: tractor power mechanical parts, tires, bucket, etc., harvester including potato harvester, peanut harvester, agricultural machinery and tools (pear. Take the plough as an example, the plough includes the disc plough, moldshare plough, animal force plough, the component of the whole machine includes the plow tip, the plow leg, the plow share, the plow piece and so on. Related industries, the production of supporting products accessories can be called agricultural machinery accessories.

What are common agricultural machinery accessoriesNow rural use of agricultural machinery is common, in the job, because of farmland environment is bad, so most of farm machinery accessories used are consumables, need to change regularly, in order to avoid failure, farm machinery accessories usually used are:1, agricultural tiresQualified agricultural tires tues both sides have the trademark, model, specification, layer number and the cord material etc, and clear, eye-catching, some still carries with production and inspection chapter; Inner surface should be smooth with brightness, the hand has the elasticity. If the tyre surface identification is not complete or fuzzy, inner tube lacklustre, tire body thin and uneven thickness, hand inelastic, is defective.2, threadProduct appearance should be bright and clean without rust, without defects, continuous spiral arm, no burr, no crack. Will be specimen and standard accessories spinning together, should be able to spin to the terminal, and no card lag phenomenon in the process of precession; Spin after flipping the fittings should be without shaking and sound, and if the thread has defects such as corrosion, crack, burr, spin the move after fitting will shake, for inferiority of quality.3, the gearQualified gear packing should be in good condition, tooth surface should be smooth and no cutting marks, no burr, and coated with anti-rust oil or wax, gear profile usually have code, with a hacksaw blade broken crop row gear face, should be no scratches or only a fine scratches. If the gear surface have burr, notching, rust, sharp strokes with sawdust and Nick (insufficient hardness), the poor quality.4, V beltQualified V belt surface is smooth, seamless joint glue, outside the circle on a clear trademark, specification, manufacturer name and logo, the length of the same type of V belt should be consistent.If the V belt look rough, uneven glue joint or openings, shade thrum exposed edges, no marks or blur, the V belt length is differ, it is false and inferior product.5, V belt wheelQualified V belt wheel surface porosity, crack, grooved smooth, V belt buckle grooved, V belt is slightly higher than that of slot and the bottom of the V belt is not drain contact. If discover wheel blowhole defects such as trough, the groove surface shape and qualified V belt do not form a complete set, it is bad.

Agricultural cnc machining,metal parts

Tianhui Machine Co.,Ltd , https://www.thcastings.com