Checking High Power Range; Checking Medium Power Range - Chroma 63610-80-20 Operation & Programming Manual

Programmable DC Electronic Load 63600 Series Operation & Programming Manual
When the power is set to 400W, the power specification range is shown as follows:
DMM (W) maximum value: 400 + (0.3%×400 + 0.3%×6400) = 420.4W
DMM (W) minimum value: 400 - (0.3%×400 + 0.3%×6400) = 379.6W
Panel power reading range: DMM(W)±(0.1%×400 + 0.1%×6400)= DMM(W)±6.8W

7.3.4.1 Checking High Power Range

A. Connect the load module, DC Source, DMM and Current Shunt as Figure 7-1 shows.
Use DMM (W) to measure the voltage passing through the module's input terminal. Be
careful in making connections so that contact resistance voltage drop will not affect the
readings.
MODE
B. Press till VFD shows CP press
EDIT
C. Press to set load voltage and press
voltage output and limit current settings are based on the voltage/current values listed in
Table 7-14.
LOAD
D. Next, press
passing through the negative input terminal.
Load Power
Model
Setting
300W
63630-600-15
400W
63640-150-60
300W
63630-80-60
100W
63610-80-20
400W
63640-80-80

7.3.4.2 Checking Medium Power Range

A. Connect the load module, DC Source, DMM and Current Shunt as Figure 7-1 shows.
Use DMM (W) to measure the voltage passing through the module's input terminal. Be
careful in making connections so that contact resistance voltage drop will not affect the
readings.
MODE
B. Press till VFD shows CP press
EDIT
C. Press to set load voltage and press
voltage output and limit current settings are based on the voltage/current values listed in
Table 7-15.
LOAD
D. Next, press
passing through the negative input terminal.
7-10
to enable the load and wait for 30 seconds to record the voltage
DC Source
Voltage/ Limit
Current
20V/17A
16W 40V/0.5A
8V/60A
10W 8V/1.25A
6V/60A
16W 40V/0.5A
6V/20A
4W 40V/0.2A
6V/60A
16W 40V/0.5A
to enable the load and wait for 30 seconds to record the voltage
RANGE
to light up the H range LED indicator.
DATA
to set limit current. The DC Source
Table 7-14
DMM(W)
Max.
327.9W
43.048W
402.4W
11.23W
309W
16.48W
105.1W
8.812W
420.4W
35.248W
RANGE
to light up the M range LED indicator.
DATA
to set limit current. The DC Source
Front Panel Display
Reading (W)
Min.
272.1W DMM (W)± 9.3W
0W DMM (W)± 9.016W
397.6W DMM (W)± 0.8W
8.77W DMM (W)± 0.41W
271W DMM (W)± 5.1W
15.52W DMM (W)± 4.816W
94.9W DMM (W)± 1.7W
0W DMM (W)± 1.604W
379.6W DMM (W)± 6.8W
0W DMM (W)± 6.416W