-40~85℃ IP54 Differential Air Pressure Switch
Description
The QAD Series differential pressure switches are general purpose
pressure switches designed for both HVAC and Energy Management
applications. These pressure switches can be used to sense
positive, negative, or differential air pressures when used in
conjunction with an DBZ-06, A/SPT or A/VPT Series sampling tube.
The NEMA 3 (IP54) rated weather proof plastic enclosure contains an
On/Off, single stage micro switch and two pressure chambers
separated by a silicone diaphragm. The enclosure also contains a ½”
conduit knockout and guards against accidental contact with the
live switch terminal screws as well as the factory calibrated
linear set point adjusting knob. The set point can be adjusted
without comparing to a field gauge, manometer or magnehelic.
Technical Specifications
| Model | QAD |
| Media | Air,non-combustible and non-aggressive gasses |
| Max Operating Pressure | 10kPa |
| Mounting Position | Diaphragm in any vertical plane |
| Degree of protection | IP54(with cover) |
| Operating Temperature | -40℃to 85℃ |
| Contact Arrangement | SPDT |
| Electrical Rating | Resistance: Initial: < 50 milliohms; |
| Current1.5A resistive(0.4A inductive) 250V |
| Electric Connection | 6.3x0.8 blade 46244 or screw terminals |
| Material | Housing:ABS |
| Duct connectors: ABS |
| Membrane: Silicone |
| Cable sleeve:PVC |
| Weight | 0.15kg(0.35kg with flexible pipe) |
| Connection | φ6.0mm for tube connection |
| Approval | UL,CE,RoHS |
Dimensions(mm)
Installation Connections
QAD series air pressure controls is factory-calibrated for vertical
position. If installed horizontally, this will affect the switching
point as following:
• with cover facing upwards, switching point is 15Pa higher than
scale;
• with cover facing downwards, switching point is 15Pa lower than
scale.
Note: Do not install upside down with trip pressures of less than 50pa!
Electric Wiring
Product Range
| Model | Pressure Range | Differential | Tolerance |
| QAD-1 | 20~200Pa | 10Pa | ±15% |
| QAD-2 | 30~300Pa | 10Pa | ±15% |
| QAD-3 | 40~400Pa | 20Pa | ±15% |
| QAD-4 | 50~500Pa | 20Pa | ±15% |
| QAD-5 | 200~1000Pa | 100Pa | ±15% |
| QAD-6 | 500~2500Pa | 150Pa | ±15% |
| QAD-7 | 1000~5000Pa | 250Pa | ±15% |
- The performances stated in this sheet can be modified without any
prior notice due to design improvements
FAQ
1 Q: What's the delivery time?
A: According to the specification and quantity of your order,
generally 4
days for normal standard products within 10pcs.
2 Q:Are you manufacturer or trading company?
A: We are manufacturer with many years of experience.We have our
own factory.Welcome to visit our factory.
3 Q: Can we use our logo on the products?
A: Yes.We can provide OEM service.
4 Q: Do you have products with ex-proof certificate?
A: Yes,we can offer intrinsic-safety and flame proof certificates.
5 Q: What is the warranty of your products?
A: Normal is 12 months.
6 Q: What's the means of transport?
A: Express such as TNT,Fedex,DHL,UPS, or logistics by indicator.
