LM-534B
Tone channel selective level meter
Auto-sweep function enables automated measurement of all channels!
Output of selected channel signals is enabled!
[Overview]
[Features]
There are cases where multiple channel signals
(determined by frequency band) are multiplexed to
transfer on a single transmission line of remote
monitoring control equipment, telemeter, etc.
When signal levels of a specific channel are measured
on this kind of transmission lines using an ordinary flat
level meter, the other signals should be stopped.
However, LM-534B does not require stopping other
signals so that a specific channel signal level can be
easily measured.
Signal-out function (signal output) enables outputting
signals of a specific channel; so, if you use it together
with a level variation recorder, it enables monitoring of a
specific channel for a long period of time.
◆ Various filters such as 50 baud (18 CH) ，200 baud (8 CH)，300 baud
(2 CH)，600 baud (3 CH)，1200 baud (1 CH) and ｆ0 ±50 Hz (200 Hz
to 4 kHz in 50 Hz step） are provided.
◆ Just a single operation enables starting measurement of each channel
out of multiplexed signals.
◆ The band-pass filter of f0 ±50 Hz (f0: 200 Hz to 4 kHz in in 50 Hz
step) enables measuring single-frequency signals used in control
signal, etc.
◆ Switching to a flat level meter enables measuring the total level of all
channels.
◆ Auto-sweep function provides automatic measurement of all channels
(CH) of each filter and stores them to memory.
◆ Peak hold function records max. and min. values; so, it provides easy
checking of level fluctuation.
◆ Setting input impedance to HIGH enables measuring a line where DC
is superimposed.
◆ Measurement results saved to MMC (multimedia card) in CSV format
can be transfered to a PC and edited with spreadsheet software.
◆ Small-sized and handy.
◆ Dry cell battery can be used in addition to the attached AC adapter.
Successor to LM-534.
[Differences]
- LM-534B: Supports only printers for outputting measurement
results to an external device.
- LM-534B: Supports only MMC for outputting measurement
results to an external device.
External appearance
Application
◆ Measurement of signals multiplexed on a dedicated circuit.
Transmission line
Signal transmission device
Signal transmission device
Wireless channel
Power line carrier circuit
Transmission line carrier circuit
Receiving part
Receiving part
Remote
monitoring
and
control
system, etc.
Remote
monitoring
and
control
system, etc.
Space
Mark
LM-534B
LM-534B
Receive filter
Resistance attenuator
Limiting amplifier
Frequency discriminator
Output converter
FS oscillator
Resistance attenuator
Transmission filter
◆ Measurement of signals multiplexed on a telephone line (only for HIGH connection)
Uplink
Downlink
Automatic metering
device
(HIGH connection)
(HIGH
connection)
(HIGH connection)
(HIGH
connection)
Network
Various sensors
Centralized monitoring center
LM-534B
User's premise
LM-534B
Functionality
◆ Signal-out (signal output) function
Signal-out (signal output) function enables outputting signals of a specific channel.
Transferring these signals to a connected level variation recorder (our DLR-202, etc.)
enables the long-term measurement of level fluctuation.
Transmission line
Remote
monitoring
device
◆ Measurement with peak hold function
Display and record max. and min. values of measured signal levels.
LM-534B
Level variation
Level variation
recorder
recorder
Remote
monitoring
device
◆ Auto-sweep function
Measure consecutive signal levels in multiplexed signals of each channel automatically.
Measurement data is saved to memory.
◆ Monitoring of specific frequency with band-pass filter
Band-pass filter enables measuring signal levels automatically up to 77 points (200 Hz to 4 kHz frequency band in
50 Hz step).
It is best fitted for monitoring of signal level of a specific frequency (monitoring control signal, etc.) and measuring
noise components of a communication line.
◆ Saving measurement results
Measurement results can be saved to MMC (multimedia card) in CSV format.
Measurement results saved in MMC can be edited with spreadsheet software on a PC.
Oi El ectri c
LM- 534B
TONECHANEL CHAKER
< S I G N A L
F I L T E Ｒ ：
C H ：
f ０ ：
B W ：
６ ０ ０ Ω
-
< N O
O U T >
20 0
.
d B m
M A X
+ １ ５ ． ０ d B m
M I N
- ２ ３ ． ３ d B m
M M C > ０ ９ ： １ ２ ： ３ ４
HIGH
600Ω
600Ω
FILTER
TYPE
FLAT
Measurement results
５ ０ B
１
４ ２ ５ H z
１ ０ ０ H z
BPF
50B
BPF
200B
BPF
600B
BPF
1200B
BPF
f0±50Hz
PEAK
HOLD
REAL
MAX/MIN
AUTO
SWEEP
BPF
300B
SIGNAL
OUT
ENTER
DATA
SAVE
MEMORY
READ
SELECT
WRITE
Description of operation part
Filter selection part of a measured channel.
FLAT means the total level of all channels.
Operation
part
Connection setting part of a transmission line.
Set either 600 Ohm termination or HIGH
connection.
Auto-sweep setting part.
Measure automatically consecutive signal
levels of all channels selected with a filter.
Peak hold setting part.
Set peak holds (max. and min. values).
Signal-out setting part.
Output signals of a selected channel to an external
device (measuring a level at the same time).
Menu selection part.
Select a menu in the LCD display.
Data save setting part.
Save measurement results to MMC.
Internal memory operation part.
■ Specifications
No.
Item
1 Environme Performance guarantee
Operation guarantee
2 Power
Battery
AC adapter
Built-in battery (backup)
3 External
Dimension/ Mass
4 T erminal
Measurement terminal
AC adapter jack
5 Insulation
AC terminals (AC adapter)
■ Standards
Specifications
0 to 40 degC/ 20 to 85% (non condensing)
Same as the performance guarantee
AA x 4
Usable at AC 100V ±10% (50/60 Hz) by using ACP-311M AC adapter
Backup for settings and clock available (approx. 2 days with super capacitor)
Approx. H 208 x W 96 x D 50 mm (protruding parts not included)/ approx.
C2-11P
ACP-311M for AC adapter connection
DC 500 V/ 1000 MOhm or more
AA size rechargeable battery (battery voltage 1.2 V) can be used.
No.
Item
1 Level
T erminal
Measureme Input impedance
Measurement frequency
Level measurement range
Specifications
C2-11P
600 Ohm±5% balanced/ HIGH(50 KOhm or higher)
150 Hz to 10 kHz at FLAT
Level measurement
: -70 to +20 dBm with overflow/underflow display
At signal-out
: -50 to +5 dBm with overflow/underflow display
Resolution
0.1 dB
Measurement accuracy
±1 dB
Maximum input level
+20 dBm
2 Signal
Output impedance
600 Ohm ±5% balanced
Output part Output frequency range
200 Hz to 10 kHz
Input/Output level deviation ±1.0 dB (between -50 and +5 dBm)
3 Frequency 50 baud
Center frequency
: f0 = 425 to 3315 Hz (170 Hz step/18 CH)
Selection
Passband width (BW)
: 100 Hz
200 baud
Center frequency
: f0 = 800 to 2800 Hz (400 Hz step/6 CH)
and f0 = 1700 Hz, 2100 Hz (2 CH)
Passband width (BW)
: 260 Hz
300 baud
Center frequency
: f0 = 1080 Hz, 1750 Hz (2 CH)
Passband width (BW)
: 260 Hz
600 baud
Center frequency
: f0 = 1200 Hz, 1500 Hz, 2400 Hz
Passband width (BW)
: 460 Hz
1200 baud
Center frequency
: f0 = 1700 Hz
Passband width (BW)
: 1000 Hz
: f0 ±50 Hz
Center frequency
: f0 = 200 Hz to 4 kHz (50 Hz step/77 points)
Passband width (BW)
: 100 Hz
Accessories
Measurement cordPWT-123 (MIPS-electric clips)
AC adapter
ACP-311M
Dry battery
AA
Case
PC-800 (soft case)
Instruction manual
1
1
4
1
1
Carrying case (PC-800)
Note: Specifications and external appearance are subject to change without notice for improvement.
Inquiries
Head Office
3-6, Kikuna 7-chome, Kohoku-ku, Yokohama, 222-0011, Japan TEL：81-45-433-3051 FAX：81-45-401-2194
Hokkaido Branch
4-4-18, Odori Higashi, Chuo-ku, Sapporo, 060-0041, Japan
Tohoku Branch
3-12-2, Ake Dori, Izumi-ku, Sendai, 981-3206, Japan
TEL：81-22-377-1721 FAX：81-22-377-1726
Chubu Branch
2-4-17, Tsurumai Showa-ku, Nagoya, 466-0064, Japan
TEL：81-52-882-4651 FAX：81-52-882-4652
Osaka Branch
1-21-39, Esaka-cho, Suita, Osaka, 564-0063, Japan
TEL：81-6-6388-6001 FAX：81-6-6388-6502
Hiroshima Branch
Kyushu Branch
KA1501286B
5-5, Fukuro-cho, Naka-ku, Hiroshima, 730-0036, Japan
4-8-25, Tenjin Chuo-ku, Fukuoka, 810-0001, Japan
TEL：81-11-222-7395 FAX：81-11-271-1560
TEL：81-82-241-8680 FAX：81-82-241-8283
TEL：81-92-731-2201 FAX：81-92-731-2238
You can find the latest information of new products on our web site.
http://www.ooi.co.jp E-mail : [email protected]