Record data can be confirmed.
（
Surge current level and its record time
）
Instruction manual
【
Caution
】
・
The lightning memory can only be installed on earth wire. Do not install it
on power line.
・
Indoor use only. Do not use it outdoor.
・
Do not expose the lightning memory in the environmental conditions such as
rain, direct sunshine, corrosion gas and dust.
・
Remove the batteries and store the lightning memory when it is not used.
・
Do not handle the lightning memory with wet hand.
・
Push the button slowly and carefully. Prevent a mechanical shock or do not drop it.
・
Do not dismantle or remodel it.
・
Do not use different batteries except specified batteries.
・
In the event of lightning surge exceeding the specification, the lightning memory
may fail.
【
Warning
】
・
Do not install the lightning memory or replace the batteries when lightning strikes.
１
Safety instruction
６
Indication of record data
①
Open the 2 lids for batteries on the bottom.
②
Insert 2 pieces of LR03 (AAA) size batteries
with care of polarity.
③
After inserting the batteries, LCD shows the
operation menu and then LCD turns off for
measurement mode.
④
Close the lids and fix them until they click.
【
Important
】
It is recommended that the batteries are replaced every 2 years.
After replacing the batteries, the time returns to initial setting.
（
00/01/01 00:00
）
Make sure to set the time correctly after replacing the batteries.
（
Record data will not be lost.
）
Conduct the operation test by pushing “TEST” button after replacing the batteries.
Please read the instructions before installing the product, as this
instruction manual explains how to use the lightning memory effectively
and safely.
２
Insert the batteries
【
Record data indication
】
【
Example of record data
】
Surge level
Indication
Explanation
S
Small
Surge indication more than 100A
L
Large
Surge indication more than 1kA
T
Test
Test operation
５
Operation test
When pushing “TEST” button for more than 1 second during
LCD turns off (Measurement mode), time, “T”, and the number
of count are shown. The test operation is recorded to internal
memory. Because of this operation, this device can be confirmed
that it is normal.
【
Test indication
】
Year Month Day
Hour
Count
Surge level
Minute
1) Installation by screws
Earth wire is passed through the
bottom dent and fix it by M5 or M6
screws. (2 parts, 1.5 to 2N
・
m
）
It becomes measurement condition.
2) Installation by cable ties
Earth wire is passed through the
bottom dent and fix it by 2 cable ties.
It becomes measurement condition.
３
Time setting
①
Push “TEST” button and “DATA” button at the
same time for more than 1 second. The LCD
changes to the time setting mode.
※
If these buttons are not pushed for more than 10 second,
LCD turns off and returns to measurement mode.
②
Set year, month, day, hour, minute in order by pushing
the buttons.
“TIME” button
：
Increase the number
“TEST” button
：
Decrease the number
“DATA”button
：
Set the number and move to next setting
③
After setting the time(minute) and push “DATA”
button, LCD shows “SET” and time setting is completed.
④
If “TIME” button is pushed for more than 1 second, LCD
shows the current time for 5 seconds. Check this time
that is correct.
9
Specification
Name
LIGHTNING MEMORY
Type
OLM-2
、
OLM-2S
Power source
LR03 (AAA) type Alkali battery 2 pieces
(
※
Recommendation frequency of batteries replacement
：
2 years)
Applied wire
2.0
～
22mm
2
IV or KIV wire
Indication current
S
：
100A±30
％ （
8/20μs
）
L
：
1kA±30
％
（
8/20μs
）
Max. current
25kA
（
8/20
μ
s, 10/350
μ
s
）
Max. number of record
99
（
It cannot record data above 99
）
Signal contact
(OLM-2S)
Open collector output
The signal contact becomes “close”(1s) when operating
and testing.
(If the number of record is more than 99, the signal
contact output operates.)
Maximum operating voltage
：
DC80V
Maximum operating current
：
50mA
Time accuracy
Monthly difference
±
15 seconds
Applied use
Indoor use only
Applied temperature
Measurement
－
20
℃
to
＋
50
℃（
No dewing
）
Indication
0
℃
to
＋
50
℃（
No dewing
）
■Contact
（
Handling store or OTOWA
）
OTOWA ELECTRIC CO., LTD.
https://www.otowadenki.com/
Head Office (Japan)
：
TEL +81-6-6429-5951
【
Time setting mode
】
【
Time setting completed
】
４
Installation
【
TIME button
】
8
Delete of record data
1) Delete of record data
Push “TIME” button and “TEST” button at the same time for
more than 1second. LCD shows “00” and all record data are
deleted.
【
Important
】
If record data are deleted, these data cannot be restored.
2) Maximum record data
Totally maximum 99 data can be recorded. If total data
becomes 99, more data cannot be recorded. If operation test is
conducted, LCD shows “DATA FULL”.
Even when the recorded data is 99, the signal contact becomes
“close” when operating and testing.
（
OLM-2S
）
【
Delete of record data
】
【
Max. record data
】
【
Installation by screws
】
【
Installation by cable ties
】
Screw
Cable tie
Earth wire
Earth wire
【
Battery replacement
】
００／_ _／_ _
_ _：_ _
１８／１２／２３
１３：４６ＳＥＴ
１８／１２／２３
１３：４７：３６
【
Important
】
Detection current might be worse when
this product is installed in a metal box.
LIGHTNING MEMORY ＯＬＭ－２
LIGHTNING MEMORY
ＯＬＭ－２Ｓ
(With signal contact output)
△
!
△
!
１８／１２／２３
１３：４８Ｔ０１
①
When pushing “DATA” button for more than 1 second,
the number of record data is shown. (Including test
operation)
②
When pushing “TIME” button or “TEST” button during
the number of record is shown, the newest record data is
shown.
③
If pushing “TIME” button or “TEST” button every time,
the record data on LCD scrolls in order.
④
If these buttons are not pushed for more than 10 second,
LCD turns off and returns to measurement mode.
【
Indication meaning
】
０３
１９／０１／１３
０５：４３Ｓ０３
１８／１２／２８
１２：３４Ｌ０２
7
Signal contact output
(OLM-2S)
００
- - ＤＡＴＡ - -
- - ＦＵＬＬ - -
The signal contact becomes “close”(1sec) when operating and testing.
When using the signal contact output, please connect to the monitoring device using
the harness of signal contact output. (cable length: 300mm,wire diameter: 0.36mm)
DC voltage
Recommended SPD
DC12V
SL-GV12J
DC24V
SL-GV24J
DC48V
SL-GV48J
DC80V
LS-T1FS
【
Important
】
・
The signal contact output should be used less than
maximum operating voltage and maximum operating
current.
・
Take care of the voltage drop when extending the wires
from the harness of signal contact output.
・
Connect the red wire of harness to + side of DC power
and the white wire of harness to
—
side.
・
Please install the SPD for protecting
the monitoring device from induced
lightning on the signal line.
【
Signal contact terminal
】
No
．
G1-325-18-027c