Introduction:
This
tool is designed for accurate parking. if you have a problem with the
appraisals, how far is the automobile from the wall when the park, you can use
this device to avoid collision. the ultrasonic technology, which works
automatically. let you know the sound and the three led lights. is a 9v battery
(6f22) or an external source that provides a dc voltage of 9v. it consists of a
display unit, a sensor unit and a cable. it also has low battery indication.
Appearance:
1. ultrasonic hole
2. the
switch
3. the
input jack (external power supply)
4. red
ice
5. the
yellow led
6. the
green ice
7. the
hummer
Installation:
According to figures 2 and 3 include
imaging and sensor unit on the wall. the imaging unit should be attached so
that her driver knew. the sensor unit is mounted directly below the display,
typically 0.7 to 0.9 metres above the ground. Different vehicles may lower the sensor
unit at different locations. a small adjustment may be necessary.
Make sure it's an ultrasonic aperture at
the same level as the bumper or the license plate to the ultrasound reflected
back to the sensor unit.
After the completion of the installation,
try parking your car using the apparatus to make sure that it is installed
correctly.
Note:
1. the cable should
be firmly connected to the sensor and a display unit.
2. make sure that a
sensor unit is no obstacle, which could get in the way of ultrasound.
Picture 2 Picture 3
ultrasonic aperture is at the same
height as a buffer the imaging unit should be
attached t to the driver can see
or license plate
The operating instructions
1.
turn on the machine.
3.
when the distance between the sensor unit and the car between 0.4 m and about 5
m:
a. And on ice and apparatus make a sound when the
automobile approaches the unit.
Note:
the frequency of the alarm buzzer is constant, the distance between the car and
the sensor unit less than approximately 0.5 m. if the distance between
approximately 0.5 m and about 5 m, the frequency of the alarm buzzer varies
with distance. the shorter the distance, the higher the frequency of the alarm
buzzer.
b.
the buzzer will issue a beep, and then shuts down when the car stops to move
toward the sensor unit or when the automobile stops to move to the sensor unit
and begins to move away from her.
c.
the machine lights up ice and turns off the sound when the automobile is moving
from the sensor unit.
d.
the apparatus off ice for approximately 20 seconds after the automobile is
parked.
4.
the machine stops any indication about after 20 seconds, if the distance
between the vehicle and the sensor unit is less than 0.4 m. if the car is
moving from the sensor units and is about 0.4 m far away from her, the buzzer
will issue a beep, and then shuts down.
Notes:
1. the machine can work continuously and
automatically. if it is not long time to use, remove the battery or the
external power supply.
2. when you use the machine, make sure there are no sources in the
vicinity of the ultrasound.
3. use the device only in dry and clean the garage, in which there is no
draft.
4. do not open the machine before the machine off. to prevent electric
shock.
5. if entering the garage the car is going too fast, it may reduce the accuracy.
6. do not use the appliance when the casing is disconnected or the
battery or part of the housing.
7. do not use the apparatus in the vicinity of explosive gases, vapours
or dust.
8. the maximum detection capacity of the apparatus is 5 meters.
The exchange of the battery:
If the buzzer to sound and three led flashing
at the same time, you should immediately to replace the battery. Before the exchange battery device
turn off and unplug the external power supply.
Remove the
batteries and the rear side of the sensor unit, replace a dead battery in a
same type.
Battery back cover
back.
The basic
specifications:
Low battery
indication: the three led at the same time, buzzer and flashing.
Power: 9v battery
(6f22 or equivalent) or an external source two 9v.
Working
temperature: 32 today when 50°c, air humidity < 75%.
Storage
temperature: - 50 degrees to 135, air humidity < 85%.
Size: display: 185
x 61 x 31 mm.
The sensor unit: 82
x 61 x 37 mm. weight: approximately 180 g (without battery)
Notes:
1. the content of
this manual may be changed without notice.
2. the manufacturer
does not assume responsibility for any loss.
3. the contents of
this manual may be used j
Park Indicator Park Indicator,Park Sensor,Sensor Parking,Parking Sensors Shenzhen Cartrend Technology Co, Ltd , https://www.cartrendthings.com
Balance valve features:
1, the ideal conditioning function;
2. Excellent cut-off function;
3. Accuracy to 1/10 laps of open conditions appears;
4. The theoretical flow characteristic curve is an equal percentage characteristic curve;
5. National patent-type opening and closing determination equipment;
6, corresponding to each full circle has a fixed flow coefficient, debugging only measured pressure difference between the two valves, you can easily calculate the flow through the valve;
7, PTFE and silicone seal, reliable sealing function;
8. The internal components are made of YICr18Ni9 or copper alloy, which has strong corrosion resistance and long service life.
9, the lift valve stem, no need to reserve operating space.
10. It is a combination valve.
Balance valve operating principle:
The use of DC-type valve body structure, has a very good equal percentage flow characteristics, can reasonably distribute the flow, effectively deal with the heating (air conditioning) system exists in the room temperature hot and cold inequality doubts. Together, pressure drop and flow rate can be accurately adjusted to improve the liquid activity in the pipe network system, reaching the liquid balance of the pipe network and saving energy. The valve is provided with an openness indication, opening determination device and a small pressure measurement valve for flow measurement. It is only necessary to install an appropriate standard balance valve at each branch and user's inlet, and determine after a one-time commissioning with a dedicated smart meter. The total amount of water in the system was controlled within a reasonable range, and then the unreasonable phenomenon of "large flow and small temperature difference" was overcome. The balancing valve can be either on the water supply pipe or on the return pipe. Usually the equipment is on the return pipe, especially on the high-temperature loop. To facilitate the debugging, the balance valve must be installed on the return pipe and the balance valve should be provided. (Back) The water pipe no longer need to set the cut-off valve.
In the pipeline system, the equipment balance valve is adjusted to adjust the resistance ratio ratio of the system pipeline, and arrives together with the planning request. After the system is qualified, there is no question of static hydraulic imbalance.
If the commissioning system is in a certain load operation condition, the branch pipes conditioned by the balance valve will actively reduce the flow while the total flow is reduced, but the flow ratios set by the branch pipes will not change.
The balance valve is a kind of valve with special function. The valve itself has no special place. It only uses the difference of function and field. In some industries, because the medium (various types of movable substances) has a relatively large pressure difference or flow difference between the pipes or containers, in order to reduce or balance the difference, between the corresponding pipes or containers Valves are installed to balance the relative balance of pressure on both sides, or to achieve a balance of flow through a diverted approach. The valve is called a balancing valve. 
3. an ultrasonic aperture should be at the same height as a buffer or a
plate.
2. the three led is lit
under the conditions of figure 4. the horizontal axis indicates the distance
between the sensor unit and the car. the sensor unit is in position zero.
Balance valve performance characteristics and principles
The balance valve is a conditioning valve with a digitally determined special function. Let's take a look at what characteristics and operating principles balance the valve today: