Test equipment and test equipment maintenance and maintenance methods

Test equipment and test equipment maintenance and maintenance methods

There are many types of environmental testing equipment, but the most used environmental testing equipment is the high-temperature, low-temperature, hot-humidity test chambers. Now, most of them are high-temperature, low-temperature, hot-humidity test chambers, ie, constant temperature and humidity chambers, which are more difficult to repair. Other environmental testing equipment is large and representative. The following is an example of constant temperature and humidity, the constant temperature and humidity of the structure and some common faults and troubleshooting methods.

Humidity Chamber

Common faults and troubleshooting methods:

malfunction

category

malfunction

phenomenon

System check

Method of exclusion

Electricity

Device

unit

Minute

No

Have

Electricity

source

Is the external power supply connected/the voltage is normal?

Reconnect

Power line/connection contact is good

Is the power fuse contact good or burned or damaged?

Reinstall/replace the core (seat)

whole

machine

Do not

can

start

move

Whether the connection is good

Reconnect

The master switch contact is good / burned or damaged

Repair/replacement

Contactor or relay contact is good/whether it is burned or damaged

Whether the instrument over temperature setting is correct/whether it is burned or damaged

Reset/replace

Power input (phase sequence relay) phase sequence connection is correct/whether it is burned or damaged

Reconnect/replace

Pressure controller pressure adjustment is correct / whether burned or damaged

Re-adjust/replace

No

Have

plus

heat

Whether the connection is good

Reconnect

Meter display is normal/output

Repair/replacement

Instrument settings are correct

Reset

Whether the blower switch is on/whether it is damaged or damaged/whether the contactor is connected or burned out

Open/Change/Connect

Test equipment and test equipment maintenance and maintenance methods

Cold and hot shock chamber

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