Handheld instrument registering relevant pile driving parameters, calculating diesel hammer stroke or hammer blows per minute (BPM), for an accurate pile driving log.Counts hammer blows, and equivalent blows per minute for all hammer types; calculates stroke height for diesel hammers
Provides a drive log of blow count as a function of depth
Results are downloaded from the E-SAX to your computer
Optional accessories allow for impact velocity measurements to compute kinetic energy and depth measurements
The E-Saximeter registers all relevant pile driving parameters. It calculates the hammer operating rate in blows per minute and helps the piling inspector create a pile driving log. For single acting, open-end diesel hammers the E-Sax also displays the hammer potential energy and ram stroke. This measurement is important since excessive stroke can cause pile damage.
The E-Sax is a handheld instrument. In its basic configuration, the pile inspector observes the driving process and pushes a button for every depth increment as driving progresses. Several accessories further enhance the functionality of this time-tested sound recognition device including:Proximity switches installed on the driving hammer and a wireless transmission system (transmitter attached to the driving hammer and E-Sax internal transceiver) enable the E-Saximeter to compute the hammer kinetic energy. Kinetic energy may be input to the GRLWEAP pile driving simulation software to fine-tune the driving criteria.
A depth measurement reel with wireless transmission capabilities eliminates the need for manual depth increment input, automating the entire creation of the driving log.
Technical Specification
Main Unit
Size: 100mm X 190mm X 50mm
Weight: 0.54kg
Temperature range: 10 to 40°C operating -10 to 65°C storage
Power: Built-in rechargeable battery with 16-hour minimum duration
Display: LCD, 4 lines X 16 characters, viewing area 62mm X 26mm
Keypad: Large Key (1.27mm²), non-tactile
Electronic
32-bit CICS Micro CPU up to 50MHz
10-bit 2 channel analog to digital converter; 8-bit 2 channel digital to analog converter
Internal microphone 70 to 115 dB
Standard Type A USB drive for data transfer
8 MB internal Magnetoresistive RAM
Functional and Other
Maximum blow detection rate: 68 bpm for open end diesel hammers; 300 bpm for all others
Operating units: English or SI
Full one-year warranty
Technical manual provided in PDF form on a USB drive
Optional Depth Measurement Unit
Optional Energy Switches (pair of proximity switches, available in 3 types)
| Functionality
| Normally Open
| Normally Open
| Normally closed (for special applications)
|
|---|
| Weight
| 114 g
| 205 g
| 182 g
|
|---|
| Switching Frequency
| 200 Hz
| 650 Hz
| 200 Hz
|
|---|
| Sensing Range
| 10 mm
| 10 mm
| 15 mm
|
|---|
| Repeatability
| .01 mm
| .01 mm
| .01 mm
|
|---|
Transmitters
For Optional Energy SwitchesFor Optional Depth Measurement UnitInstallationmounts on hammermounts on depth sensor| Size
| 90mm X 125mm X 32mm
| 64mm X 98mm X 34mm
|
|---|
| Weight
| .54kg
| .46kg
|
|---|
| Data Transmission
| via a standard radio protocol
| via a standard radio protocol
|
|---|
| Frequency Range
| 2.402 ~ 2.480 GHz
| 2.402 ~ 2.480 GHz
|
|---|
| Max Range
| 100m
| 100m
|
|---|
| Electronic
| Low power 16-bit processor with 12-bit analog to digital converter and 12-bit digital analog converter
| Low power 16-bit processor with 12-bit analog to digital converter and 12-bit digital analog converter
|
|---|
| Power
| Built-in rechargeable battery w/ 8-hour min. duration
| Suplied by +12V to +24V crane battery
|
|---|
| Temperature Range
| 0 to 40°C operating; -10 to 65°C storage
| 0 to 40°C operating; -10 to 65°C storage
|
|---|
Enquiry:hkmarketing@epc.com.hk 
Whatsapp Enquiry: +85261990717
