Bently Nevada 16710-15 Seismic Transmitter

The 16710-15 serves as a seismic transmitter within the Bently Nevada 16710 series. This unit converts velocity signals from moving-coil sensors into a standardized 4–20 mA output. Plant engineers use it for continuous vibration monitoring on pumps, motors, and cooling tower fans.

Technical Specifications

Parameter	Value
Model	16710-15
Category	Seismic Transmitter
Input Signal	Velocity, moving-coil seismic sensor
Output	4–20 mA, loop-powered
Frequency Range	4.5 to 1,000 Hz
Measurement Range	0 to 25.4 mm/s (0–1 in/s)
Supply Voltage	12 to 30 Vdc
Operating Temperature	-40°C to +85°C
Storage Temperature	-55°C to +100°C
Weight	Approx. 0.9 kg
Dimensions	120 mm × 65 mm × 55 mm
Mounting	1/4-28 UNF stud or M8
Connector	2-pin Mil-spec
Enclosure Rating	IP67
Part Count	Single-channel transmitter

Signal Path and Interface Details

The transmitter accepts a raw seismic velocity signal from the sensor. Next, it integrates and filters the waveform into a stable current loop. Because the design draws power from the same two wires, field wiring stays simple. The 16710-15 supports long cable runs without extra supply conductors.

Energy Storage and Power Draw

No internal battery or supercapacitor resides inside this module. The unit relies entirely on the external loop supply for operation. Consequently, power loss immediately interrupts the output signal. System designers should therefore provide an uninterruptible 24 Vdc source.

Installation Notes

Operators mount the housing directly on the machine casing with a stud. Shielded twisted-pair cable minimizes electromagnetic interference over distance. Meanwhile, the IP67 enclosure tolerates dust, water spray, and washdown. Always verify loop polarity before energizing the circuit.