Hioki PR8111, Инструкция по эксплуатации

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1.2 Names and Functions of Parts
11
1
RANGE knob
Selects the measurement range, allowing
you to choose the range that best suits
the voltage being measured. The 500 set-
ting is used exclusively for mV ranges.
mV/V switch
Selects the unit for the measurement
range selected with the
RANGE knob.
POSITION knob
Adjusts the pen’s zero point (0 V position)
by moving its position. When the
ZERO/
MEAS switch is in the ZERO position, the
pen can be moved throughout the entire
effective recording width.
ZERO/MEAS switch
• MEAS : Use when measuring data. (You can start recording by placing
the START/STOP/FEED switch in the START position.)
• ZERO : Use when adjusting the pen’s zero point.
(You can move the position with the POSITION knob.)
CHART SPEED knob
Selects the chart speed, allowing you to
change the speed at which the recording
paper is fed through the instrument.
Operating Panel
h/min switch
Selects the unit for the speed set with the CHART SPEED
knob. You can select either minutes (min) or hours (h).
(Example: PR8112)
START/STOP/FEED
switch
Starts and stops the paper feed.
•
START : Starts feeding paper through
the instrument.
• STOP : Stops feeding paper through
the instrument.
• FEED (by pushing the switch past
STOP): Feeds paper through the
instrument. There are four feed
speeds. You can increase the feed
speed by pressing and holding the
switch in the
FEED position for at
least 2 seconds.
SPAN (p. 12)
Allows the recording width to be adjusted
using a screwdriver. This adjustment is
not usually used during normal operation.
Use as necessary when adjusting the in-
strument, for example during calibration.
• To increase the width: Turn clockwise.
(The recording width can be
increased by a maximum of about
20%.)
• To decrease the width: Turn counter-
clockwise. (The recording width can
be decreased by a maximum of about
20%.)
AC adapter terminal (p. 18)
Connect the included AC adapter here.
Battery bay and cover (p. 17)
When using batteries to power the instrument, load six
LR20 alkaline batteries here. Since the battery cover is
held in place with screws (M3), a Phillips head screw-
driver is required in order to change the batteries.
FG terminal
Use this terminal, which is connected to the instrument’s
metal chassis, to ground the chassis. For best grounding,
use a cable of 3 m or less in length.
Rear Panel
CH2 POWER switch (p. 26)
Use this switch (available only on the PR8112 [2-pen
model]) to turn CH2 (pen 2) off. Turning off CH2 lowers
the instrument’s power consumption when using only one
channel.
(Example: PR8112)
Input terminals (p. 20)
Connect the measurement cables here.
Red: Connect the cable carrying the high signal.
Black: Connect the cable carrying the low signal.
On the PR8112, the upper two terminals are CH1,
and the lower two terminals are CH2.
The PR8111 has only the upper two terminals.