Hioki PW3336-01, Instruction Manual

Page: 58 / 206

3.2 Configuring Settings
52
4
Press or to set the
synchronization source.
Settings:
U1
→
I1
→
U2
→
I2
→
U3
→
I3
→
DC
⋅⋅⋅
(Setting the source to DC will cause the SYNC. DC lamp for
the set channel to light up.)
5
Set the synchronization sources for the
other channels as necessary.
• When using a wiring mode other than 1P2W, the synchronization source will be standardized using the
CH1 settings.
• Setting the synchronization source to DC when using AC input will cause display values to fluctuate, pre-
venting accurate measurement. Set the synchronization source to a value other than DC when using AC
input.
• The voltage and current for each channel will use the same synchronization source as set.
• Input for the parameters selected as synchronization sources must be at least 1% of the range.
• When the
SYNC. ERROR lamp is lit up, accurate measurement cannot be performed.
• Even when the SYNC. ERROR lamp is not lit up, accurate measurement cannot be performed if the syn-
chronization source input signal is in any of the following states:
1. When a signal with a frequency higher than the frequency measurement range (zero-crossing filter) is
being input
2. When a measured voltage or current of an AC component of an input signal is less than 1% of each
relevant range.
3. When a measured voltage or current of an AC component of an input signal is greater than 130% of
each relevant range.
4. When a signal with a frequency component within the frequency measurement range (zero-crossing
filter) other than the measurement signal’s fundamental wave frequency is superposed
Example: When the frequency measurement rage (zero-crossing filter) is 500 Hz, if a signal for which
zero-crosses occur at a frequency of less than 500 Hz (a modulation signal, noise, etc.) is
input on top of a 50 Hz input signal
• The synchronization source cannot be changed while integration is being performed or during display hold
or maximum value/minimum value hold operation.
• When using a timeout setting other than 0.1 sec. (1 sec. or 10 sec.) for channels with the 1P2W×2 or
IP2W×3, 1P3W&1P2W, and 3P3W&1P2W wiring modes, set the synchronization source to the voltage or
current for a channel whose timeout has been set to 1 sec. or 10 sec.
Example: If the CH1 and CH3 timeout setting is 0.1 sec. and the CH2 timeout is 10 sec. while using the
1P2W×3 wiring mode, set the CH2 synchronization source to U2 or I2.
6
Press to exit the settings.
The instrument will revert to the normal measure-
ment state.