Manual

8
E SK-H
z Saving records
When the measurement stops, the record is automatically saved.
The current value when measurement is stopped (electric charge/humidity/
temperature) and the ion balance measurement time or the static elimination
time are saved.
Records are saved from number 001 to number 100. Note that if a
measurement is performed with a record number in which data has already
been saved, the existing data will be overwritten. If you press the F1 key to
cancel a measurement that has started, the unit will return to the state that it
was in prior to the start of measurement. Switch to the record number that you
will use, and then start the measurement.
Hold down the F2 key when measurement is stopped to delete the data of the
displayed record number.
z List of screens in charge plate monitor mode
You can use the W and X arrow keys to switch between the screens.
Reference
You can only switch between record number screens when the unit is
not performing a measurement. You can switch the record number
regardless of the display mode. If the record number is 100 and you
continue to switch it forward, the record number will return to 1.
z How to execute zero point adjustment in charge plate monitor mode
1 Select a screen on which the F3
"ZERO" key is displayed.
Switch the screen using the W/X keys, and
then check that "ZERO" is displayed for the
F3 key.
2 Execute zero point adjustment.
Direct the unit toward the target that
is grounded, and press the F3
“ZERO” key.
CAUTION
You cannot switch to the screen marked with "*" during
measurement.
No.004
9.4s
10 15s
+40
−
2v
−40
0V
50
15: 53
MENU START SCALE
Ion Balance
No.012
1.1s
23s
0kV
−0.1
−32V
−1.0
10
15: 23
MENU START
Decay
−
No.013
0.8s
23s
1.0
0.1
+
9V
0kV
10
15: 22
MENU START
Decay +
No.005
V
°C %
+
2
sec
1.5
25.3 54
9/05 9: 21
9: 21
MENU START ZERO
ZERO ZERO
ZERO
Ion Balance
No.002
V
°C %
+
32
sec
1.0
26.8 50
8/23 16: 12
15: 52
MENU START
Decay +
No.003
V
°C %
−24
sec
0.2
29.5 46
8/28 15: 23
15: 23
MENU START ZERO
Decay
−
No.002
V
°C %
+
2
sec
1.5
25.3 54
9/05 9: 21
9: 21
MENU START ZERO
Ion Balance
(1) IB value display
W/X keys*
(2) IB graph display (3) Decay+ value
display
W/X keys
(6) Decay- graph
display
(5) Decay- value
display
(4) Decay+ graph
display
z Record number switching
You can use the S and T keys to switch the
record number.
W/X
keys
W/X
keys*
W/X
keys
W/X
keys*
No.005
V
°C %
+
2
sec
1.5
25.3 54
9/05 9: 21
9: 21
MENU START ZERO
Ion Balance
3. Specifications
Specifications
*1 When measured with a response time of 0.8s, this is ±100 V or less in high-precision mode
and ±1 kV or less in wide-range mode, and ±10% (indicated value) in other ranges.
*2 The measurement accuracy range is ± 30 kV.
*3 At 25°C and with a humidity of 50%RH
*4 SK-H055 is necessary.
*5 When ±100 V or less. Other ranges are ±10% (indicated value).
*6 The laser classification is implemented on the basis of IEC 60825-1 following the
requirements of Laser Notice No. 50 of the FDA (CDRH).
*7 10 to 60%RH when using the SK-H055.
Dimensions
 SK-H050
SK-H050
Charging
potential
measurement
Measurement mode
High-precision mode Wide-range mode
Measurement distance
25 mm 100 mm
Measurement range
±2 kV ±50 kV
Measurement accuracy
*1
±10 V ±100 V
*2
Minimum display unit
0 to 999 V : 1 V
1.00 to 9.99 kV : 0.01 kV
10.0 kV or more : 0.1 kV
Sampling rate
Approx. 1.4 ms
Temperature
measurement
Measurement range
0 to 40°C
Measurement accuracy
*3
±1°C
Minimum display unit
0.1°C
Sampling rate
1 s
Humidity
measurement
Measurement range
10% to 85% RH
Measurement accuracy
*3
±5% RH
Minimum display unit
1% RH
Sampling rate
1 s
Charge
plate
monitor
function
*4
Ion
balance
measure-
ment
mode
Ion balance
measurement range
±1 kV
Measurement
accuracy
*5
±10 V
Measured voltage
minimum display unit
1 V
Static
elimina-
tion time
measure-
ment
mode
Charge voltage
±1400 V
Static elimination time
minimum display unit
0.1 s
Measurement time
0 to 99 s
Laser class
Class 1 Laser Product
(IEC60825-1: 2007
FDA(CDRH)Part1040.10
*6
)
PC interface
USB 2.0 Full Speed
Ratings
Power supply voltage
AA alkaline dry cell battery × 2
Operation time
8 hours (in charge potential
measurement mode)
Environmental resistance
Ambient temperature
0 to 40°C (no freezing and no
condensation)
Ambient humidity
*7
10 to 85%RH (no condensation)
Materials
SK-H050: PC-ABS, PC, SUS
SK-H055: PC, SUS, PTFE, PVC
Weight
SK-H050: Approx. 240 g
SK-H055: Approx. 220 g
77.6
183.3
62.8
34.5
47.7 31.6
Unit: mm