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INPUT RANGE:
VIBRATION:
Gain x 1 = 0.6 to 1 100mm/S Velocity. Resolution 0.2mm/S.
Gain x 10 = 0.06 to 110mm/S Velocity. Resolution 0.02mm/S.
Fully auto-ranging within the gain selected.
NOISE: Dynamic range: 60dB (10dB below base 50dB above base).
Base Selectable: 20,40,60,80,100.
Resolution: 0.1 dB.
TRIGGER LEVEL:
USER-SELECTABLE:
Gain x 1 = 0.6 to 100mm/S Velocity.
Gain x 10 = 0.06 to 10mm/S Velocity.
CUT-OFF DELAY:
User-selectable from 0.1 to 1 second. Used to reduce event length if
event falls below trigger level for more than selected delay.
SAMPLING RATE:
VIBRATION:
User-selectable from 200 to 1000 Hz. Impulse mode only.
EVENT LENGTH:
User selectable - from 0. 1 up to 60 seconds without Flash Card
Option.
Automatic calculation of maximum length available (depending on number
of channels, Sampling Rate and memory installed).
FREQUENCY RESPONSE:
VIBRATION: 0.5 Hz to 1 KHz, with standard accelerometers, NOISE: A or
C weighted, Linear for Air Overpressure to IEC651. Octave filters
option.
MEMORY:
DATA RAM: 32K. Expandable to 160K without the Flash Card Option.
Protected by a separate battery. User information store for 10 fields,
12 characters/field and all user-selected options, with data retention
for up to 10 years.
STANDARD CHANNELS:
VIBRATION ONLY: 3 Channels (1 triaxial or 3 single axis transducers)
OR 6 Channels (2 triaxial or 6 single axis transducers). NOISE ONLY:
Single Channel, Type 1 Precision Grade microphone. SIMULTANEOUS NOISE
AND VIBRATION: 4 or 7 Channels (1 Noise Channel l + 3 or 6 Channels of
Vibration).
PRINT-OUT:
user selectable. NONE: Only valid with PC or Flash Card option.
BLOCK RESULTS:
VIBRATION: Displacement, Acceleration, Velocity, Frequency, Resultant
Velocity and Air Overpressure (Leq in the Continuous Mode).
NOISE: LEQs of Overall, Max 5 min, interval, Max 5 min per interval,
L1 0, L30, L50, L90 Percentiles, LMAX. Additional user definable
interval for Leq, Max 5 min Leq, L10, L30, L50, L90. Other percentiles
optional. FULL: As Block results with additional user data, Velocity
and Air Overpressure or Leq graphs.
TRANSDUCERS:
VIBRATION: TA1 (3 accelerometers mounted triaxially) or VT1 (single
accelerometer) as required.
NOISE :
Type 1 Precision Grade Microphone for Leq and linear sub 4 Hz Air
Overpressure data. Remote mounting up to 1 OM.
STANDARDS:
VIBRATION:
BS6472, BS7385, BS6955 and DIN4150.
NOISE: IEC651, BS5228, BS5969 and ANSI S1.4 Type 1.
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MODES:
AUTOMATIC TRIGGER (IMPULSE) MODE: Triggers on any vibration exceeding
the user defined trigger value. Used for blast monitoring or similar
events. Event length user-selectable.
CONTINUOUS MODE:
Used to record Peak Vibration and Sound Leq (in dB(A) or (C)) over
extended periods. Manual or automatic operation using 3-event timer,
repeated daily. Data tabulated at user defined intervals. Ideal for
Noise surveys and monitoring of construction operations to ensure
compliance with project limits. Applications include: Piling, Railway,
Highway and Bridge Structure Monitoring.
DUAL MODE:
Continuous monitoring for Vibration and Air Overpressure, with
vibration exceeding the trigger value producing an impulse event. Each
impulse event is printed as it occurs, with the continuous event
printed at the end of the monitoring period.
3-4 weeks notice is required if sound recording is required in
additions to vibration only
GENERAL:
Real Time Calender/Clock for Date/Time print-out with results and 3
event timer per day for unattended operation of several weeks.
LCD Display of 4 lines by 20 characters and full QWERTY
keyboard.
Internal Printer/Plotter, 4 colour for superimposed graphs on plain or
graph paper, complete with Take-up Spool and cover.
User-friendly software - Features include:
Reprinting Event; 1 Min Pause;
Quantity of full results printed before returning to Block Print-out
when left unattended.
Separate or combined graphs, user selectable.
Battery/Mains operated incorporating internal battery
charger.
Battery life: Typically 5 days; High capacity option typically 15
days.
Computer interface (RS232) and P.C. Software if required.
Strong Case sealed to IP65, Weight: 10.5Kg.
INSTRUMENT CONFIGURATION:
Sound only, Vibration only or Combined Sound and Vibration (Vibration
3 or 6 channels).
Peak Particle Velocity calculated in VDVs.
Octave band filters for sound channel.
220V power supply/charger.
Audible warning if trigger level is exceeded in either mode of
operation.
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