SapIP – IRT Instruction Manual 1/23/2017
Page 11
Dynamax, Inc.
5.2 Solar panel or DC adapter for recharge.
DC Adapter – requires 100 mA at 12 V. Top-off mode requires 230mA at 12 volt.
Solar 2 W (150 mA) to 5 Watt solar panel. (Most 5 W solar panels are less expensive.)
Low charge rates to minimize battery temperature.
40 mA charge current (12V), to restore batteries from a 12 V solar panel.
Top off charge is also controlled (see from external commands in ‘IRT Watcher’).
230 mA current (12 V), allowed to charge batteries 5 hours internally, or temperature rise of
the battery, or up to 6.2 V whichever occurs first.
Reverts to low charge rate after above.
Notes:
Any reverse voltages, over voltages and/or voltage spikes are protected at inputs with
resettable fuses.
The IRT battery should not be discharged.
Batteries should be charged before storing.
Batteries should be disconnected before storing.
6 Power SPIP-IRT-AD Analog Version Specifications –
No batteries included.
Logger provides power: DC from either 5 V or 12 V supply to the IRT.
Logger typically switches on IRT for 2 seconds, takes a reading then stores the results. After, the
logger will power down the IRT.
Minimum 5 V input (this is considered typical operation).
Current 6 mA average, maximum 25 mA during readings.
Maximum 12-18 V – voltage or switched supply at 12 V battery nominal.
Current 3 mA average, maximum 12 mA.
7 Power SPIP-IRT-SDI SDI 12 Digital version Specifications
No batteries included.
Logger typically switches on IRT for 2 seconds, then initiates a sequence to alert the IRT to wake up,
then command it to send the serial SDI-12 data, and stores results. Afterward, the logger has the
ability to power down the IRT if it chooses.
Maximum 12-18 V – voltage or switched supply at 12 V battery nominal.
Current 4.5 mA minimum, maximum 5.8 mA during readings.
Input Volts
Current (Avg.)
12.0 V Standard SDI-12
4.6 mA
6.0 V
4.6 mA
5.5 V – Minimum Operation
6.0 mA
8. Enclosure
8.1 Specifications
Completely sealed off field enclosure.
Sealed to IP67, waterproof, rain proof, and weather tightened.
Mounting options include a low-cost 2” EPS conduit hanger
Optional gimbal mounted into a threaded socket (1/4” camera).