Power
supply |
Rechargeable
lithium-ion battery packs 9.6V, backup charger. |
Battery
indicator |
Battery
symbol shows dump energy. When the voltage is too low, automatic
shutdown after the 1 minute. |
Power
consumption |
Current
consumption of normal test 490 mA, continuous working for 8 hours. |
Display
mode |
LCD
color screen, 640dots×480dots, 5.6 inches, display domain: 116mm×88mm. |
Size of current clamp |
Small sharp current clamp: 7.5mm×13mm; |
Instrument
dimensions |
L×W×H:
240mm×170mm×68 mm. |
Number
of channels |
4U/4I. |
Phase-to
phase voltage |
1.0V~2000V. |
Phase-to-neutral
voltage |
1.0V~1000V. |
Range of current clamp |
Current clamp: 10mA~10.0A; |
Frequency |
40Hz~70Hz. |
Parameters
of electricity |
W, VA,
Var, PF, DPF, cosφ, tanφ. |
Energy
parameters |
Wh,
Varh, Vah. |
Harmonic |
Order
0~50. |
Total
harmonic distortion |
Order
0~50, each phase. |
Expert
mode |
Yes. |
Number
of Transient records |
150
sets. |
Voltage
flicker |
Yes. |
Starting
current mode |
Yes,
100 seconds. |
3
phases unbalance |
Yes. |
Record |
300
days(simultaneous recording 20 parameters, record one point every 5 seconds). |
Min/Max
recorded value |
Measurement
of maximum and minimum values over a period of time. |
Alarm |
40
different types of parameter selections, 12,800 sets alarm logs. |
Peak |
Yes. |
Phasor
diagram display |
Automatically. |
Capacity
of snapshots |
60 |
Menu
language |
English/Chinese. |
Communication |
USB. |
Automatic
switching off |
When
an alarm campaign is initiated or a search for transients, an inrush current
capture, or a trend recording is pending or in progress, the device is not
automatic switching off. |
In
other test mode, 15 minutes without keystrokes, automatic shutdown after
prompt 1 minute. |
|
Backlight
function |
Yes,
suitable for use at night and dark place. |
Weight |
Host:
1.6kg (with battery). |
Small sharp current clamp: 170g×4; |
|
Length
of voltage test wire |
3m. |
Length
of current sensor wire |
2m. |
Working
temperature and humidity |
-10°C~40°C;
below 80%Rh. |
Storage
temperature and humidity |
-10°C~60°C;
below 70%Rh. |
Input
impedance |
Input
impedance of test voltage: 1MΩ. |
Withstand
voltage |
Withstand
3700V/50Hz sinusoidal AC voltage for 1 minute between instrument wiring and
shell. |
Insulation |
Between
instrument wiring and shell ≥10MΩ. |
Structure |
Double
insulation, with insulation vibration-proof sheath. |
Safely
rules |
IEC
61010 1000V Cat III / 600V CAT IV, IEC61010-031, IEC61326, Pollution degree:
2. |
DZF-3Q Power Quality Analyzer's basic function:
◆Transient capture function
Monitoring instantaneous change of power grid voltage current parameters, including the voltage current fluctu-ations, voltage current surge, sag and short supply interruption, temporary overvoltage, impact current and Cur-rent voltage instantaneous distortion. Instruments can store 150 sets of transient waveform at the same time.
◆Starting current monitoring
Monitoring surge current of line and the startup current when electrical equipment is starting, help to correctly design capacity. Can be display the RMS rising / falling curve In the startup process, the envelope curve of startup current, waveform of 4 channels current and 4 channels voltage. Recording about 100s after trigger, storage the current /voltage instantaneous and waveform curve of each cycle in 100s.
◆Trend chart recording and storing function
Store all the test parameters of basic test functions (Urms, Uthd, Ucf, Uunb, Hz, Vrms, Vthd, Vcf, Vunb, PST, Arms, Athd, Acf, Aunb, KF,W, VAR, VA, PF, COSφ, TANφ),50 voltage harmonics, 50 current harmonics. And create the trend curve. Record data for a long time according to need(concurrent selection 20 parameters to record data for once every five seconds, you can record about 300 days.).
◆Alarm function
Set the limit values according to need, monitoring the values whether overshoot, if overshoot will generate an alarm log, such as: voltage, current, unbalance, harmonic ratio, frequency, active power, total harmonic distor-tion. You can configure 40 different alarms, each group can set different monitoring parameters (including 50 harmonics, total of 123 different parameters) and limit values, also can set the shortest time of overshoot. The log can contain up to 12,800 alarms.
◆Snapshot function
Any screen can be saved (screen snapshot), at the same time automatically records the time and test mode. Such as can save voltage and current waveform, harmonic bar chart, phasor diagram etc. It can save a maximum of 60 screen snapshot.
◆Communication function
Communicate with computer via USB; Monitoring software can display waveform of power quality analysis, read of the transient waveform, trend chart recording, alarm log, screenshots, and display on the computer.
◆Setting function
The user can configuration of the time and date, configuration of the screen contrast and brightness, definition of each phase curve colors’.
Choice of type of connection to the net work.
Configuration of the type of the current sensors and voltage ratios.
Select Chinese menu or English menu.
◆Help menu in Chinese/English
Every stage of operation can press the "help" key to obtain relevant information.