RION Level Recorder LR-07 | Nihon Denkei India Private Limited


Products Infomation

RION Level Recorder LR-07

Ease of Use in a Clever Package

Records sound level, vibration level or DC voltage. External control is possible for pen, paper feed and marker functions. Operates in sync with level processing equipment.

Level Recorder






  • Records sound or vibration levels
  • Records DC voltages
  • External control of pen, paper feed, and marker functions
  • Measurement with coordinated paper feed
  • Operates in sync with level processing equipment


Versatile external control

Pen movement, paper feed start/stop, marker operation, and paper feed rate selection can be controlled from other equipment.


 Paper-feed controlled measurement

When the measured sound or vibration level exceeds a certain threshold, paper feed can be automatically increased for easier reading of the recorded information. This saves paper and is useful for example in train and airplane noise measurements or other situations where non-continuous events are to be recorded.






Applicable standards JIS C 1512
Level recorders for sound level meters and vibration level
Input section Input impedance 50 kΩ, unbalanced
Voltage required forfull-scale point AC: 0.2 V to 10 V (RMS)
DC: 0.5 V to 25 V
Maximum allowable input voltage AC: 35V (RMS)
DC: 50 V
Recorder section Recording principle Automatic balancing
Frequency range Recording range 25 or 10 dB: 1 Hz to 100 kHz (tolerance ± 1 dB)
Recording range linear:     1 Hz to 100 kHz (± 10 % of full-scale point)
Recording range 50 dB:    1 Hz to 20 kHz (tolerance ± 0.5 dB, 1 dB at 1 Hz)
Dynamic characteristics FAST, SLOW, VL (vibration level), FF (averaging time constant 10 ms)
Recording pen Level recorder pen (RED)   LB-25B
Recording pen response Exponential
Recording pen speed 400 mm/s or more
Recording paper(normal paper) For level recording: RP-01D
Paper feed motor Pulse motor
Paper feed rate
(8 selectable steps)
0.01, 0.03, 0.1, 0.3, 1, 3, 10, 30 mm/s or external control (pulse drive) ;
tolerance ± 2 % or less
Paper speed control measurement Available in for 50 dB recording range
Paper feed rate increase by factor 10 when input signal exceeds a preset trigger level (not valid at 30 mm/s, 10 mm/s, 3 mm/s, and external control)
Trigger level settings: 10, 15, or 20 dB
above lower measurement limit
Power requirements Dry-cell batteries (IEC R20, size “D”)× 6, External power supply input
Ambient conditions 0 to +50 ℃, max. 90 %RH, no condensation (when operated with dry-cell batteries)
−10 to +50 ℃, max. 90 %RH, no condensation (when operated with AC adapter or rechargeable battery pack)
Dimensions and weight Approx. 122(H) × 250 (W) × 325(D)mm, Approx. 3.6 kg
Supplied accessories Input cable NC-39A× 1
Recording paper RP-01D× 2
Dry-cell batteries (IEC R20, size “D”)× 6
Carrying case× 1
Level recorder pen (RED)× 6
Spare pen holder× 1
Dual-sided adhesive tape× 1
Miniature screwdriver× 1
Calibration position sticker set× 1
Instruction manual× 1

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