Bullhorn RM4150S Remote Monitoring Unit
Bullhorn S Series RM4150S and RM4151S RMUs are cellular-based, reliable, two-way remote monitoring units that offer unrivaled protection against surges. They are ideal for rectifiers, tanks, and well casings. Bullhorn S Series RM4150S cellular, surge-hardened RMUs withstand the most extreme environments.
Why Choose Bullhorn RM4150S RMUs
Bullhorn S Series RMUs monitor your critical data points, including AC and DC volts, pipe-to-soil potential, shunts, instant off, and accumulators.
Insights that Improve Billing – Continuous access to electronic flow meter data means that you can always generate highly accurate reports that help improve invoicing. For example, you’ll be able to easily see when a customer is consuming more product than usual and make sure they’re being billed accordingly.
Remote Operations – Uploading measurements Bullhorn Web is automatic. Use the mobile application to change a configuration, take measurements, control interruption, and initiate instant off readings.
Reliable Interruption – Patented influence and interference technology and GPS synchronized interruption are available when you purchase or as a field upgrade.
Rugged Durability – Bullhorn remote monitors survive the harshest conditions with built-in surge protection. For enhanced safety against surge events, you can add a high-energy surge arrester or Advanced SurgeProtect Kit.
Accuracy – RM4150S and RM4151S RMUs enable you to find and fix minor issues before they become significant. They automatically calibrate and zero each measurement, and AC and DC voltage measurements are accurate within ±1 percent throughout the range. For example, a one mV (millivolt) measurement is accurate within ±10 microvolts.
Instant Alerts – Never worry about unknown problems with your unit. Configure text or email notifications that immediately inform you about high-priority situations, such as a low battery or unusually high consumption rates.
Integrated Compliance Solution – We provide a complete end-to-end system to prove regulatory compliance. Easily import Bullhorn’s field measurements into PCS™ Compliance software and integrate them into reports.
Unlimited Warranty – American Innovations’ industry-leading warranty covers your Bullhorn RMUs against any unexpected surge damage for up to three years.
5 Analog Channels (RM4151S has 2 analog channels)
DC voltage range:
±150 V with accuracy of 1% of reading
AC voltage range:
150 V with accuracy of 1% of reading
Once every 30 seconds
≥ 250 V DC
Survives multiple 30KV strikes.
Tested using 50uS waveform to
simulate lightning strike.
2 Digital Channels
Digital input, accumulator, accumulator
reset, or contact closure (0 – 24 V DC)
1 = 2 V
0 = 1 V
20 scans per second
Minimum pulse width:
Switch Out channel
500 mA DC
10-14 V DC
Minimum switching cycle:
On/off cycle increments:
Daily, interference, start/stop,
continuous, and Instant Off
Set up to 99 rectifiers or groups for influence studies
NO or NC, solid state or mechanical
Analog channel 3:
± 10 V DC, sampled 60 times per sec
IR drop edge delay:
0 to 60 seconds in increments of 1 ms
GPS-synchronized measurement using
configurable on, off, and delay settings
Worldwide compatibility on
LTE cellular networks
Carrier independent. Automatically selects
the best signal.
Poll, reconfigure, set alarm thresholds & update firmware over-the-air
Bullhorn Tools for PC
100 – 240 V AC with included
10 – 14 V DC (9 – 36 V DC with
optional external DC/DC supply)
Internal sealed rechargeable battery
(5” x 2.25” x 8”)
External mount (optional):
Part #: 517200-000
(7.3” x 4” x 12.4”)
-30° C to +70° C
Safety and Compliance
FCC Part 15