LR5001
HUMIDITY LOGGER
Operation Manual
Thank you for purchasing the HIOKI LR5001
Humidity Logger.
This guide introduces the logger’s basic
measurement procedure to first-time users.
Before using the instrument, be sure to read the Instruction
Manual carefully.
Read First
Mar. 2021 Revised edition 3
LR5001B981-03 21-03H
2
1
Confirmation
LR6 alkaline battery
(Pre-installed in the log-
ger.)
3
Settings
Option
1
Besides the LR9504 Humidity Sensor, you can also use an
optional temperature/humidity sensor. Use a sensor that is suit-
able for your application.
1
2
3
4
2
3
4
1
2
3
4
Confirm package contents, and prepare needed items.
Logger and Accessories
LR5001
Instruction manual
Stand
Refer to this manual for
operating procedure
details, or when prob-
lems occur.
This is the logger stand.
See the Instruction
Manual for details.
LR9504 Humidity Sensor
(Cable length: Approx. 40 mm)
LR5091 Communication Adapter
(Includes LR5000 Utility Program CD [PC
application software] and USB Cable)
Importing data to a computer requires the optional LR5091
Communication Adapter or LR5092-20 Data Collector
Display Example: Setting the
recording interval to 10 minutes.
Display the settings,
and select the setting item.
Configure the setting as
needed.
Apply the new setting contents.
(The setting items are displayed as shown under Setting Display on
page 2.)
Stop
[REC]
disappears when
recording stops.
If the stop method is set
to
[OFF]
, recording stops
automatically when
memory becomes full.
Hold the
button for two seconds
while recording (while
[REC]
is dis-
played).
Note: Continue pressing the button until the
[REC]
indicator changes from a blinking
to off state.
Preparations
Install the battery and connect the sensor to the logger.
Installing the Battery
Press the PUSH tab as
shown, and pull the bat-
tery cover back.
Install the battery as
shown.
Align the holes in the
battery cover with the
projections on the back
of the logger.
While confirming that
there are no gaps, press
with your fingers to
close the battery cover.
When the battery is installed, the logger
turns on (there is no power switch).
Connecting a Sensor
Align the triangles on the plug
body and in front of the cable
jacks, and insert the plug
securely. (Insert the protruded
parts of the connecting cable
into the holes of the device.)
Recording
Before recording, install the logger and
perform pre-measurement inspection.
(See the Instruction manual for details.)
Start
From the Measurement display, hold
the
button for two seconds.
Note: Continue pressing the button until the
[REC]
indicator changes from a blink-
ing to off state.
When the blinking stops and the data count
is zeroed, recording starts.
After one second, the measurement display
reappears.
Logger memory contains the data for two recording sessions. (Be
aware that old data is erased when starting recording after two record-
ing sessions.)
Data can be imported to a computer without stopping recording.
No measured value is displayed.
Is the sensor inserted the wrong way round?
Is the sensor inserted as far as possible?
Verify the correct plug orientation, and insert it as
far as possible.
If the values are not displayed despite these mea-
sures, the sensor and logger need to be inspected and repaired.
Please contact your dealer or Hioki representative.
Note: The maximum and minimum values are not displayed when the
recorded data count is 0.
The display is blank.
Is auto power saving enabled (set to ON)?
When enabled, the display blanks after 30 seconds of operator inactivity.
Press any button or send a communication signal to turn on the display.
The
[REC]
indicator disappears even though recording has not
been stopped.
Is the stop method disabled (set to OFF)?
With disabled, recording stops automatically when memory becomes full.
To record continuously until stopped by the
REC/STOP
button, enable the
stop method.
(In this case, old data is overwritten when the memory becomes full.)
Recorded data has disappeared.
Does recording restart after stopping?
Note that if recording is accidentally restarted after stopping, data recorded
prior to the last recording is automatically erased.
(The logger retains the data from both current and most recent prior
recording operations.)
To erase logger memory
Erase using the PC Utility program. See the Instruction manual for details.
The battery is depleted too quickly.
Are you using the battery originally supplied with the logger?
Are you using a zinc-manganese battery?
Install a new LR6 alkaline battery
(Returns to the mea-
suring display)
Channel 1
Measured value
Channel 2
Measured value
Channel 1
Measured value
Recorded data
count
Channel 2
Measured value
Recorded data
count
Channel 1
Maximum value
Channel 1
Minimum value
Channel 2
Maximum value
Channel 2
Minimum value
REC
Recording in progress
AL
Upper/lower threshold exceeded
ENDLESS
Stop method enabled
STAT
Recording mode enabled
MAX,MIN
Maximum and minimum values
DATA
Recorded data count
Setting Display
Recording Interval
Setting
Year Setting
Month Setting
Day Setting
Hour Setting
Minute Setting
Stop Method Setting
Recording Mode
Setting
Power Save Setting
Power Save
Battery life is
extended when on
(enabled).
Default is on.
Recording Mode
When on (statistical
recording), instanta-
neous, maximum,
minimum, and aver-
age values are
recorded at each
interval. (Record
statistical values)
Battery life is
shorter.
Default is off.
Stop Method
Select what hap-
pens when memory
becomes full.
When on, the oldest
data is overwritten
(Endless Recording),
and when off, record-
ing stops (One-Time
Recording).
Default is on.
Measuring Display
Operating Buttons
SET
Displays settings.
(-), (+)
Changes Measurement display contents.
Changes setting values on the Settings display.
REC/STOP
Hold for two seconds to start/stop recording.
From a setting display, switches to measurement display.
Setting Display:
Displays settings (recording interval, date and time, etc.)
Measuring Display:
Displays recorded data (measured values, recorded data
count, etc.)
Indicators
Battery Status Indicator
Troubleshooting
EN
HIOKI LR5001B981-03
