New wireless trigger link available for ABEM Terraloc instruments

 

Wire-free triggering for Terraloc products

All active seismic methods require a trigger signal to begin recording on the instrument as soon as the source event occurs. The simplest method is to run a trigger cable from the trigger device at the source location, back to one of the inputs on the ABEM Terraloc. This comes with some disadvantages, not least the inconvenience of requiring a physical connection between the source location and the seismograph. This could be required over a sizeable distance, perhaps many hundreds of metres.

The Seismic Radio Trigger provides an option for wireless triggering and has been designed with the Terraloc family of products in mind (although it would be compatible with numerous other seismographs). The system comprises two radio units: one to transmit the trigger signal and one to receive. Both the Transmitter (TX) and Receiver (RX) units can accept and provide both analogue and digital input / output.

Read more about the ABEM Terraloc Pro 2

 

Specification & Accessories

CASING 2 mm anodized aluminium
POWER Rechargeable Li-ion 2600 mAh
Low battery warning
USB-C charging
TRIGGER INPUT Geophone (with sensitivity adjustment)
Hammer switch
Digital 5.0 V
TRIGGER OUTPUT Contact / Make
Digital 3.3 V
TEST FUNCTIONS Two-way radio test
Manual trigger
DIMENSIONS 157 mm  x  47 mm  x  130 mm
(per unit, not including connectors or antenna)
WEIGHT 620 g (per unit)
RADIO SYSTEM LoRa
FSK spread spectrum technology
MAXIMUM RANGE 20 km*
ACCESSORIES 2x 135mm fold & rotate aerial
1x Mueller-banana plug adapter
2x BNC-banana plug lead
1x Double USB power adapter
2x USB-C charging lead

 

*The actual range will depend upon the type of antenna being used, the terrain, and how ‘congested’ the radio network is in the survey location.