2
instrument through this interface, which can basically replace the functions of the panel
keyboard.
1.2 Unpacking inspection
After opening the box, you should first check whether the instrument is damaged due to
transportation. We do not recommend that you power on the instrument when the appearance
is damaged.
The front panel of the instrument is marked with the specific model of the instrument and the
main measurement range. Check that it is the same as the model you ordered, and confirm it
according to the packing list. If there is any discrepancy, please contact our company or the
distributor as soon as possible to protect your rights. .
The comparison between the instrument model and basic functions is shown in Table 1-1:
Note: It is best to keep the packing box of the instrument properly after unpacking, so as to avoid
unnecessary damage to the instrument due to the unmatched packing box during later
transportation.
1.3 Conditions of use
1.3.1 Power connection
Power supply voltage: 200 to 240 VAC
Power frequency: 47 to 63 Hz
Power supply range: no less than 30 VA.
The power input phase line L, neutral line N, and ground line E should be the same as the power
plug of the instrument.
This instrument has been carefully designed to reduce the clutter interference caused by the AC
power input. However, it should still be used in a low noise environment as much as possible. If it
cannot be avoided, please install a power filter.
Warning: In order to prevent leakage to the instrument or people, the user must ensure that the
ground wire of the power supply is reliably connected to the ground.
1.3.2 Fuses
The instrument is equipped with a fuse at the factory. Users should use the fuse provided by our
company.
Model difference and function description
JK9306 conventional type, 600V / 2A, without harmonic analysis function
1.3.3 Environment
Normal working temperature: 0
℃ ～
40
℃
, humidity: 20
～
80% RH
Reference working temperature: 20
℃ ±
8
℃
, humidity: <80% RH
Transportation environment temperature: 0
℃ ～
55
℃
, humidity:
93% RH
Please do not use it in dust, vibration, direct sunlight or corrosive gas.
In order to ensure good ventilation of this test instrument, do not block the left ventilation hole
to maintain the accuracy of the instrument.
This instrument has been carefully designed to reduce the clutter interference caused by the AC
power input. However, it should still be used in a low noise environment as much as possible. If it
cannot be avoided, please install a power filter.
If the instrument is not used for a long time, please store it in the original box or similar box in a
