| Power supply |
| Power supply conditions and power supply | AC220V single-phase two wire+protective grounding; Allowable
voltage fluctuation range ± 10% V; The allowable frequency fluctuation range is 50 ± 0.5HZ; TN-S power
supply or TT power supply; The grounding resistance of protective ground wire is less than 4
Ω; Users are required to configure air or power switches of
corresponding capacity for the equipment at the installation site,
and this switch must independently control the use of the
equipment. |
| Performance index |
| Temperature and humidity range | Laboratory temperature: RT~ 50 ℃ Pressure barrel temperature: RT ~ 63 ℃ Relative humidity ≥ 85% R.H |
| Heating rate | Laboratory temperature RT →+50 ℃ ≤ 60 min Pressure barrel temperature RT →+63 ℃ ≤ 60 min |
| Main technical parameters | Temperature resolution: 0.1 ℃ Temperature deviation: ± 1 ℃ Temperature uniformity: 2 ℃ Temperature fluctuation: 1 ℃ Spray volume (m1/80cm2/h) 1.0~2.0 (collect for at least 16 hours,
and take the average value) Spray pressure: 1.00 ± 0.01kgf/cm2 PH value of liquid medicine: neutral 6.0~7.0, acidic 3.0~3.1 PH value of spray solution: neutral 6.5~7.2, acidic 3.1~3.3 Control time: 1S~9999H can be set arbitrarily Note: The loss of carbon dioxide in the solution during spraying
may cause the change of pH value. The following methods can be
used, such as heating the solution to more than 35 ℃ before putting
it into the test equipment, or using fresh boiling water to prepare
the solution to reduce the carbon dioxide content in the solution,
which can avoid the change of pH value. The acid test or copper
accelerated salt spray test is to ensure the pH value of the spray
solution, Adjust the PH value of the solution to 2.8~3.0 and check
whether the solution and/or solute meet the requirements. |
| Structure characteristics |
| Box structure | The laboratory adopts imported PVC polyethylene plate (South Asia,
Taiwan) with a thickness of 5mm and a durable temperature of 85 ℃. The seal cover of the laboratory is made of imported acrylic plate
with a thickness of 5mm. The reagent refill bottle adopts hidden attached water level
detection, which is easy to clean and not easy to crack. The pressure air barrel is made of SUS304 # stainless steel high
pressure resistant barrel, which has the best thermal insulation
effect. The test material rack adopts a plane dividing rack, which can
freely adjust the angle of falling fog and being fogged on all
sides. There are many samples placed. The sealing cover is pneumatically operated. The laboratory is sealed with water to ensure no leakage of
corrosive gas in the box. The control box and the test box are integrated, and the left and
right structures are easy to operate. Water and electricity separation structure is adopted to
effectively prevent water from entering the electrical control box
and damaging accessories. |
| Cabinet cover | The sealing cover of the laboratory is made of imported acrylic
plate with a thickness of 5mm, and the top is made into a 1000
angle sealing cover, which effectively prevents condensate from
dropping onto the sample surface during the test and affecting the
test results. |
| Control panel | Pressure gauge, main power switch. |
| Power distribution control cabinet | Water filling solenoid valve, spray solenoid valve, demisting
solenoid valve, power distribution board, over temperature
protector, air saturation pressure barrel, spray control valve. |
| Heating system | Water steam heating mode is adopted, and titanium alloy heating
tube P.I.D controls heating to achieve temperature balance. |
| Water make-up system | 1. Water supplement for laboratory and pressure barrel: manual and
automatic water supplement control systems can be connected to the
automatic control water supplement of tap water tube or the manual
double water supplement mode, which is easy to use; Note: If the tap water has too many impurities or is acidic or
alkaline, a filter shall be installed at the water inlet. 2. Liquid medicine water supplement: large water tank with
concealed inside is adopted, and manual water supplement is
adopted. |
| Drainage system | Drainage valve control device, manual drainage mode. |
| Spray system | Adopt Bernoult principle to absorb salt water and then atomize,
with uniform atomization degree; There is no blocking crystallization phenomenon, which can ensure
the standard of continuous testing; Nozzle made of special glass; Adjustable taper spray tower can effectively disperse spray, ensure
uniform spray and control spray amount. |
| Spray mode | Continuous/intermittent |
| Air supply system | The spray pressure is adjusted by 1kg/cm2 in two stages. For the
first time, the compressed air is adjusted to 2kg/cm2 and enters
the saturated barrel for heating. For the second time, the spray
pressure is adjusted to 1kg/cm2. |
| Mist exhaust system | 1. Fully automatic pressure balanced mist exhaust device, which
only needs to be connected with the mist exhaust tube, and
automatically discharges mist according to the pressure in the box. 2. Manual demisting button switch. Just click this button before
opening the test chamber cover to quickly remove indoor fog. 3. Note: The mist exhaust pipe of the machine shall be extended to
the outdoor open place, and it is necessary to avoid being close to
the corrosive articles to prevent the mist from the machine from
corroding other articles; The extended mist exhaust pipe shall be
free of wavy discounts to prevent condensate in the mist exhaust
pipe from blocking the mist exhaust pipe and effectively
discharging waste gas. |
| Electric control system |
Controller | 1.7” touch screen display, user-friendly interface, all information
at a glance. 2. All digital multiple fault warning protection system, preventing
dry burning and overtemperature. 3. It adopts high-power SSR output and imported pure silver relay
contacts, with a service life of 106. 4. Multi way control mode, which can be tested in
continuous/intermittent/manual/automatic mode. 5. It is equipped with manual/automatic demisting mode to ensure no
leakage of salt mist, so as to avoid corrosion of the laboratory. 6. The hidden correction method ensures that the temperature is
absolutely controllable. 7. With power failure memory function. In case of sudden power
failure or shutdown during the experiment, the data will be saved
automatically, without losing the experiment time, so as to avoid
redoing the experiment.
|
| Temperature input mode | Can be set on the touch screen |
| Temperature display | Display the set value and actual value of temperature. |
| Time displaying | Displayed on touch screen, minimum time 1 second. |
| Operation mode | Continuous operation/intermittent operation. |
| Temperature setting range | Upper and lower limit of maximum temperature range 5 ℃. |
| Panel display | Set temperature value, current temperature value, set time, current
time, spray time, constant temperature time, over temperature
abnormal indicator, water shortage abnormal indicator, operation
end indicator, spray status indicator, demisting status indicator. |
| Temperature measuring body | PT100 platinum resistance. |
| Temperature control mode | Anti-integral saturation PID, BTC balanced temperature regulation
control mode (temperature test equipment). |
| Safety protection device |
| Test box | Extreme overtemperature protection, water shortage protection. |
| Saturated barrel | Extreme overtemperature protection, water shortage protection. |
| Heating system | Heating pipe dry burning, abnormal water supply and drainage |
| Power Supply | Leakage protection, overload and short circuit protection |
| Storage environment requirements | The environment temperature of equipment shall be kept within 0
℃~+45 ℃ |
| Requirements for installation site | The distance between the left and right side and rear side wall
panels of the test box and the wall shall not be less than 600mm,
and the distance between the front and the wall shall not be less
than 800mm. When transporting equipment, whether it can enter the
doorway, passage, elevator, etc., so as to avoid affecting your
project progress. |
| Acceptance criteria and third-party verification |
1. Acceptance criteria: the technical indicators shall be in
accordance with the methods specified in the "Technical Agreement"
signed by both parties. 2. Acceptance method: formal acceptance shall be conducted at the
Demander's site. 3. If the Demander needs to invite a third party (verified by the
National Environmental Test Equipment Quality Inspection Center and
issued a valid inspection report) to participate in the acceptance
before leaving the factory, the cost shall be borne by the
Demander. If the first acceptance is unqualified, the expenses
incurred in the second acceptance after improvement by the supplier
shall be borne by the supplier. 4. The customer entrusts the National Environmental Test Equipment
Quality Inspection Center for verification |
