 HCM380B/HCM385B Parameters |
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| Compass heading | Best heading accuracy | 0.5° tilt <10° |
| 2.0° tilt＜60° | ||
| 3.0° tilt＜80° | ||
| Resolution | 0.1° | |
| Compass tilt angle | Pitch accuracy | 0.1°<15°(Measure range ) |
| 0.1°<30°(Measure range) | ||
| 0.1°<60°(Measure range) | ||
| 0.2°<90°(Measure range) | ||
| Pitch measure range | ±85° | |
| Roll accuracy | 0.1°<15°(Measure range) | |
| 0.1°<30°(Measure range) | ||
| 0.1°<60°(Measure range) | ||
| 0.2°<180°(Measure range) | ||
| Roll measure range | ±180° | |
| Resolution | 0.1° | |
| Calibration | Hard iron calibration | Yes |
| Soft iron calibration | Yes | |
| Soft Magnetic field interference calibration method |
Horizontal rotation 360 °; vertical rotation (optional) |
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| physical characteristics | Dimension | L57×W49×H25.5mm |
| Weight | 130g(without cable) | |
| RS232/RS485/TTL interface | Direct leading cable | |
| Interface characteristics | Start delay | <50ms |
| Max output | 20Hz/s | |
| Communication rate | 2400 ~115200baud | |
| Output format | Binary high performance protocol | |
| Power supply | Power voltage | (default)DC+5V |
| Current (max) | 30mA | |
| Idea mode | 26mA | |
| Sleep mode | TBD | |
| Environment | Working temperature | -40℃～+85℃ |
| Storage temperature | -40℃～+85℃ | |
| Anti vibration performance | 100g | |
| Protective performance | IP67 | |
| Electromagnetic compatibility | According to EN61000 and GBT17626 | |
| MTBF | ≥40000 hours/time | |
| Insulation resistance | ≥100 Mega ohm | |
| Impact resistance | 100g@11ms,3 Axial Direction (Half Sinusoid) | |
| Anti vibration | 10grms,10～1000Hz | |
Measurement direction and installation requirements
Because the azimuth angle of HCM380B / HCM385B 3D compass is based on the principle of geomagnetism,
it is very important to choose an environmental installation location with minimum magnetic interference. Please install HCM380B /HCM385B as far away from iron, magnet, engine and other magnetic objects as possible. Even if there is such magnetic medium around, it needs to be controlled at least over a distance of 30cm (different magnetic fields have different distances to the compass interference). In order to ensure the best measurement environment, M3 anti-interference screw must be used during installation.HCM385B electronic compass provides 1 meter cable, and the optional cable can be 10 meters. The sensor cable should be as short as possible to obtain the minimum noise. Although HCM380B/HCM385B can compensate moderate deviation in a stable magnetic environment,it cannot compensate the changed magnetic interference. Pay special attention to the magnetic field produced by the wire with direct current, because if the direct current changes, the magnetic field size will also change. Batteries are another source of variation. Each installation is different and the user must evaluate the feasibility of the installation in all possible operating environments.
The optimal heading accuracy of HCM380B/HCM385B can reach 0.3 ° ~ 0.5 °. This is beyond doubt after strict verification. The most scientific test method is also crucial. We suggest test method is to install the HCM380B/HCM385B 3D compass on the vertically erected aluminum (non-magnetic other materials) rod to measure the heading accuracy (of course, the rotating rod is perpendicular to the rotating platform, so as to avoid the interference of large external magnetic field). In this way, the radius of compass rotation can be reduced and the measurement accuracy can be improved scientifically. This is only to provide the installation of the laboratory, which must be handled flexibly for the specific situation. For example: when installed on the vehicle, HCM380B/HCM385B should be installed perpendicular to the moving side .
Our factory
Pre-Sales Service
* Inquiry and consulting support. * Sample testing support. * View our Factory.
After-Sales Service
* Training how to instal the device, training how to use the device. * Engineers available to service products overseas.
Working room
FAQ
Q: How to choose suitable products before ordering?
A: According to your application, select the measurement axis , the appropriate measuring range, the main parameters of the output, or not sure, please contact us as soon as possible, our staff will be the first time to get in touch with you and provide the best solution and the most preferential price.
Q: What's kind of payment methods ?
A: We support T/T and Paypal methods, you can choose any one, after payment, please inform us in time, so that we can arrange your order and deliver the goods as soon as possible.
Q: How about lead time for order ?
A: After we receive your payment, the samples will be sent in 3-7 working days. If mass order please confirm the delivery schedule with our sales staff in advance so as to avoid unnecessary delay.
Q: How about quality inspection before shipment ?
We have several testing departments will be in strict accordance with the requirements of inspection of goods quality and functions, to ensure the quality of each with 100% qualified product, and the products will be inspected /tested again to ensure no any problem before shipment .
Q: What's the transportation methods ?
A: You can arrange courier to pick up goods from our company, or provide your international express account number to pay for your local courier after goods reach to your hands, but also can delivery by DHL, FEDEX, UPS, TNT, EMS... Etc through our shipping forwarder .
Q: How about after-sale service ?
A: Please check the package status in time after receipt of the goods as soon as possible, and product performance test, if any quality problem please contact us first, we will deal with your problems and feedback as soon as possible.
Q: How about product warranty and repair service?
A: Warranty for one year, In general, we can provide the repaired service in free charge if non damaged within one year , and individual cases can be extended to 3 years or more. If over a certain warranty period or damage caused by user , we will charge a reasonable fee according to the actual situation.
Q: Are the samples available free of charge?
A: At first time co-operation, we need charge related cost for samples , because our products belong to the military & Industry grade and with high quality , thus the cost is much more expensive than the average consumer goods. If we work closely together with each other more times in future, we will consider applying for free samples according to your specific requirements and sending them to you, thanks for your understanding .
Wish a pleasant cooperation with you !
