ShockLog Impact Recorders

ShockWatch Impact & Environmental Recorders help monitor and record impact and shock vibration to your equipment, structures, and storage environments — ensuring protection from costly damage. Additionally, they provide an ongoing record of the environmental conditions of the product, equipment, or structure being monitored.

ShockWatch Impact & Environmental Recorders monitor critical goods and equipment that need special care and handling in transport, storage, and use. Shock, vibrations, and unacceptable environmental conditions can cause costly damage. Identifying responsibility for these unacceptable conditions is the first step in preventing damage and downtime.

ShockWatch Impact & Environmental Recorders provide ongoing monitoring of the intensity and duration of shock and vibration to large stationary or moving equipment, structures, and products. Tri-axial piezo-electric accelerometer technology is used to record impact direction, amplitude, and duration. Optional sensors also record changes in temperature, humidity, and atmospheric pressure.

ShockLog - RD298

This device records the date and time of up to 400 events. It has several unique features, making it especially suitable for applications in which the cost of exposure to out-of-specification environmental influences is very high. The instrument is equally convenient for protecting high-value fixed or mobile installations, or characterizing shock and vibration during transportation.

In normal operation, the device checks the output of the sensors continuously, and dynamically records any impact above a preset level. This dynamic reloading mode offers high-resolution data capture (up to 2048 Hz) and wake-up within 1.5 ms of exceeding the threshold.

Optional accessories include an environmental indicator, and a remote accelerometer to record shock and vibration in areas away from where the device is mounted.

Optional Sensor

The RD298HPT is a combined humidity, pressure, and temperature sensor for use with the ShockLog Impact Recorder. It enables these impact recording products to monitor an extended range of environmental factors and is fully supported by the ShockLog software. The HPT sensor unit is plug and play compatible with the ShockLog.

ShockLog Brochure (PDF)

ShockLog Mounting Drawings (PDF)

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• Offshore oil platforms and equipment
• Building structures and foundations
• Warehouses and storage facilities
• Lasers, missiles, and satellites
• Power transformers
• Lasers and missiles
• Nuclear materials
• Biomedical equipment
• Wind turbines
• And much more

• Decrease costs related to damage incurred during operation, shipping, handling, and storage
• Encourage adherence to product storage and handling guidelines
• Provide a visible deterrent to improper operation and handling
• Allow for corrective action in cases of potential impact, vibration, temperature, humidity, and pressure extremes
• Pinpoint potential areas for improvement in operational, shipping, and handling processes
• Isolate when and where unacceptable conditions occur and identifies accountable parties
• Confirm acceptable conditions during equipment operation, shipping, handling, and storage
• Identify potential product design issues resulting from operation, shipping, and handling
• Characterize operational or transportation route conditions
• Alert recipients to inspect goods or equipment for damage

• Tri-axial piezo-electric accelerometers
• Self-contained unit — no cables or wires
• User-programmable impact scale ranges (ShockLog: 1G, 3G, 10G, 30G, and 100G)
• Date and time stamping (ShockLog: up to 400 events/512 days)
• LED lights provide visual notification of alarm or warning conditions
• Password-protected software
• IP67 rated RF screened
• Definable data collection frequencies
• Warning alarm levels correlated to user-definable impact scale ranges
• Programmable specific wake-up values maximize battery life
• Detailed Certificate of Calibration included — recalibration services provided by ShockWatch
• Uses C alkaline or lithium battery
• Optional external sensors record temperature, humidity, and pressure

Innovative Software for Reliable Data and Analysis

The ShockLog is offered with a comprehensive Windows-based software program that allows you to program your own wake-up, warning alarm levels, and frequency of data collection. When a pre-programmed impact level is exceeded, data will be stored for future analysis. With the software, you can also configure the devices directly or via iButtons to extract data and generate reports and charts.

ShockLog Technical Information

How the ShockLog Works

The Shocklog has been designed to monitor shock and vibration based on acceleration or velocity measurements. It has several unique features, which make it especially suitable for applications where the cost of exposure to out of specification environmental influences is very high. The instrument is equally convenient for protecting high value fixed or mobile installations or investigating shock and vibration during transportation.

In normal operation the device checks the output of the sensors (the three built in accelerometers, the built in temperature sensor and any external sensors) once every 10 seconds. The information from the sensors is merged into a record for each recording period and recorded in non-volatile memory. The length of the recording period can be set between 10 minutes and 24 hours and there is sufficient memory for 512 periods.

If any of the accelerometer signals or the first external input exceeds the 'wake up' threshold the processor will be turned on and will check the sensor outputs at a much faster rate (up to 4000 samples per second). If the output of any sensor exceeds the warning or trip thresholds the Shocklog will flash its status lamps accordingly. The Shocklog will adjust the sample rate during the event recording (within parameters set up by the user) to make the most efficient use of memory and capture the full extent of any events.

The external inputs are intended for use with low bandwidth devices such as pressure or humidity sensors and, in addition, the first external input can be used to trigger the Shocklog.

The Shocklog also supports peak recording in fixed time slots. In this mode the highest and lowest signal level present on each input is recorded for each time slot. The time slot length may be set between 10 seconds and 1 hour and as many as 262,144 slots may be recorded.

Security

The Shocklog stores all data and status information in high performance sector erase FLASH memory. This memory requires no power to retain data and offers special hardware protection against accidental erasure.

The instrument can be configured by connecting it to a PC running the data analysis and set up software supplied free with each Shocklog. During the configuration process the operator can set the levels for warnings and alarms, determine the sensor types to be used and set up user passwords for subsequent access to data.

Before the software will communicate with the Shocklog the user must supply the factory password for the individual instrument and any user passwords that may have been set to restrict access to data, resetting, calibration or other functions.

The complete electronic and transducer package is enclosed in a robust extruded aluminum case and encapsulated in polyurethane compound. It is completely impossible to tamper with the hardware without leaving clear evidence of such action.

Packaging and Environment

The Shocklog has been designed to function reliably in difficult environments. The electronic components are assembled using surface mount technology and the latest automatic assembly equipment. The complete electronic and transducer package is enclosed in the metal case and encapsulated in polyurethane. The securing bolts pass right through the body of the instrument to guarantee a reliable mechanical installation.

This construction technique, in combination with the absence of cables for power or sensors (unless additional external sensors are used) results in a very high immunity to electrical interference and very low levels of RF emission. The Shocklog may safely be used in close proximity to sensitive instruments or in difficult electrical environments.

The Shocklog is sealed to IP67 (including connectors) and is capable of operating at temperatures between -4°F/-20°C to +158°F/+70°C (-40°F/-40°C to +185°F/+85°C to special order.)