Dahua BF Series, Installation And Commissioning Manual

Page: 15 / 17

12
3
Announcements
The following is for blackbody
：

Warning
A warning indicates a condition that may cause harm to the user. To avoid personal injury or instrument
damage, follow these guidelines:

Ensure that the place is free of oil, chemicals, inflammables and explosives!

Use environment is 5
℃
~ 40
℃
, (ideal temperature of temperature measurement environment is
10
℃
~ 30
℃
). Do not put it into high and low temperature box without permission to avoid
accidents!

Make sure to use grounding socket to prevent accidental electric shock!

Blackbody cannot be used for applications other than temperature test and calibration!

It is not allowed to change the boldface range without permission, so as to avoid damaging the
boldface or causing safety accidents!

It is not allowed to dismantle or refit blackbody without permission! Tear up or damage of the
tamper proof label, the product is not warranted.

Notice
To avoid damaging the instrument or affecting the test accuracy, please follow the following
instructions:

It is not allowed to touch the blackbody radiation surface, and dirt will lead to the decrease of
blackbody accuracy or scrap, so as to avoid the scratch of blackbody radiation surface and affect
the temperature measurement accuracy.

Only for indoor use. The use environment shall be free from obvious air convection and strong
light irradiation, strong electromagnetic interference and vibration.

Heat dissipation space shall be reserved around the blackbody, and the distance from the
surrounding objects shall not be less than 10cm.

Calibration

In order to ensure the accuracy of blackbody temperature measurement, it is recommended to send
blackbody to Dahua Co., Ltd. for paid calibration on a regular basis. The calibration cycle is
usually one year.

Daily maintenance

The blackbody shall be managed and maintained by the designated personnel, and the maintenance
and use records shall be made.

In the process of use, it is not allowed to cover any object on the black body, so as not to affect the
heat dissipation and thus the temperature accuracy.

When it is unnecessary to use, dust prevention shall be done well, and the black body shall be put
into the packing box or covered with a clean cloth. Ensure that the storage environment
temperature and humidity are appropriate.

It is recommended to use neutral detergent to clean the blackbody shell and soft brush to clean the
dust on the radiation surface of blackbody.