Campbell PS150 Manual de usuario
PS150/CH150
12 V Charging Regulators
Revision
: 06/2020
Copyright ©
2000 – 2020
Campbell Scientific, Inc.
i
Table of Contents
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1. Introduction................................................................ 1
2. Precautions and Tips ................................................ 2
3. QuickStart .................................................................. 3
3.1 Connecting Power ................................................................................5
3.1.1 Solar Panel ....................................................................................5
3.1.2 AC/DC Power ...............................................................................6
3.2 Plug In the Battery ...............................................................................7
3.3 Hook Up Power to Data Logger...........................................................9
3.4 Turn On the Charging Source ..............................................................9
3.5 Turn On Power to the Data Logger ......................................................9
3.6 LED Indicator ......................................................................................9
4. Specifications .......................................................... 10
4.1 Specifications .....................................................................................10
4.2 Battery Packs......................................................................................11
4.3 Charging Sources ...............................................................................11
5. Operational Overview.............................................. 13
6. Charging Details ...................................................... 14
6.1 Charging Algorithm ...........................................................................14
6.2 Maximum Power Point Tracking .......................................................15
7. A100 Null Modem Adapter ...................................... 15
8. A105 Additional 12 V Terminals Adapter ............... 17
9. References ............................................................... 17
Figures
1-1. PS150 ...................................................................................................1
3-1. The PS150 connected to a CR1000 and AC power..............................4
3-2. The PS150 connected to a CR1000 and solar panel.............................4
3-3. CH150 connected to BP24 battery pack and CR1000..........................5
3-4. Solar panel connections on PS150 .......................................................6
3-5. AC power connections on PS150.........................................................7
3-6. Lift latch up on PS150..........................................................................8
3-7. Slide PS150 lid off ...............................................................................8
3-8. Wiring harness plugged into battery connector....................................9
5-1. CH/PS150 schematic..........................................................................13
Table of Contents
ii
6-1. 70 W solar panel I – V and power characteristics ..............................15
7-1. A100 connector ..................................................................................16
7-2. Installing the A100.............................................................................16
7-3. A100 mounting screw ........................................................................17
8-1. A105 adapter ......................................................................................17
1
PS150/CH150 12 V Charging Regulators
1. Introduction
The PS150 is a 12 VDC power supply that includes a rechargeable 7 Ah valve-
regulated lead-acid (VRLA) battery and charging regulator. The CH150 is a
charging regulator for an external rechargeable 12 V VRLA battery such as the
BP12 or BP24 offered by Campbell Scientific. Charging power for these
charging regulators is typically supplied by an unregulated solar panel, AC/AC
transformer, or AC/DC converter.
FIGURE 1-1. PS150
The PS150/CH150 are smart chargers that provide charging with temperature
compensation for optimal charging and battery life. A maximum power point
tracking algorithm is incorporated for solar inputs to maximize available solar
charging resources.
The PS150/CH150 are compatible with the A100 null-modem adapter and the
A105 adapter for additional 12 V output terminals. The A100 Null Modem
Adapter connects and powers two Campbell Scientific peripherals via two
CS I/O 9-pin connectors configured as a null modem. This is useful in linking
different communications technologies; e.g., telephone to radio, at sites that do
not have a data logger. The A105 adapter may be used to provide additional
12 V and ground terminals where the power supply is used to power several
devices. See Section 7, A100 Null Modem Adapter (p. 15), and 8, A105
Additional 12 V Terminals Adapter (p. 17), for more information.
The PS150/CH150 charging regulators are termed series regulators, because
the regulators are placed in series between the charging source and the load. As
batteries become closer to fully charged, series regulators reduce the current
drawn from the charging source, to where the charging source may be
A100/A105
connection
PS150/CH150 12 V Charging Regulators
2
completely unloaded if full-charge is reached. While this unloading of the
charging source is acceptable for solar panels, AC/AC transformers and
AC/DC converters, it is undesirable for wind turbines because of the resulting
free spinning when unloaded. Consequently, series charging regulators,
including the PS150/CH150, should not be used to regulate the output of wind
turbines without the inclusion of a way to load the turbine when the batteries
require little or no charging current.
The PS150/CH150 chargers have several safety features intended to protect the
charging source, battery, charger, and load devices. Both the SOLAR – G and
CHARGE – CHARGE input terminals incorporate hardware current limits
and polarity reversal protection. There is a 5 Amp slow-blow fuse in series
with the CHARGE – CHARGE inputs in the event of a catastrophic AC/AC
or AC/DC charging source failure. If the 5 Amp load is sustained long enough,
the device will open permanently. There is a 4.65 A self-resetting circuit
breaker in series with the 12 V output terminals of the charger in the event of
an output load fault. The PS150/CH150 incorporate battery reversal protection,
which is catastrophic for most chargers. ESD and surge protection are
incorporated on all inputs and outputs of the PS150/CH150.
2. Precautions and Tips
Risk of electric shock. Use only in a dry
location, such as indoors or in a weather-
sealed enclosure.
Risk of fire or electric shock. Do not inter-
connect output terminals.
Permanent damage to rechargeable cells may result if
discharged below 10.5 V.
Under normal charging conditions with sealed VRLA batteries, hydrogen and
oxygen gasses are produced in relatively small quantities, most of which later
recombines back into water. Aggressive overcharging produces excess
hydrogen and oxygen gasses, resulting in gas venting by means of a pressure
activated valve. Hydrogen gas emitted from VRLA batteries must not be
allowed to accumulate, as it could form an explosive mixture. Fortunately,
hydrogen gas is difficult to contain in anything but a metal or glass enclosure.
Never put VRLA batteries in an enclosure that
does not allow emitted hydrogen gas to be
dispersed.
VRLA batteries are capable of providing high surge currents. The 12 V output
terminals of the PS150/CH150 are fused with a 4.65 A self-resettable circuit
breaker, but there is no fusing for inadvertent bridging of the battery terminals.
Accidental shorting of battery terminals by metallic objects, such as
DANGER
DANGER
WARNING
DANGER
PS150/CH150 12 V Charging Regulators
3
watchbands, can cause severe burns due to rapid heating and is also a fire
hazard.
VRLA battery manufacturers state that “Heat Kills Batteries”. While the
PS150/CH150 can operate from –40 to 60 °C, optimum battery life is achieved
with battery operating temperatures ranging from 5 to 35 °Ci, per
manufacturer’s recommendations1. The PS150/CH150 offer temperature
compensation of the battery charging voltage based on a temperature
measurement inside the PS150/CH150 cases. The CH150 internal temperature
measurement likely will not accurately represent battery temperature for charge
voltage compensation unless the battery is in close proximity to the CH150.
With rechargeable batteries, a charge →discharge →re-charge event is termed
a cycle. In general, the most important factor for the service life of a battery is
depth of discharge1. For example, decreasing the depth of each discharge from
100% to 50% approximately doubles the number of useful cycles available
from the battery1.
Leaving a lead-acid battery in a discharged state for
prolonged periods of time results in the undesirable
growth of large sulfate crystals (sulfation) that are
detrimental to battery performance.
VRLA batteries self-discharge at approximately 3% of rated capacity per
month at room temperature1. A 3% of rated capacity per month self-discharge
results in 100% discharge in approximately 33 months (≈3 years) for a battery
stored at room temperature. Self-discharge increasing with increasing storage
temperature.
Periodic recharging of stored batteries every few months is
recommended to prevent irreversible sulfation due to prolonged
time in a discharged state.
3. QuickStart
The PS150/CH150 modules are designed to handle extreme conditions. The
modules have been designed with mounting holes on one-inch centers for
mounting to a standard Campbell Scientific enclosure back plate — see the
enclosure manual for mounting suggestions. See FIGURE 3-1 through
FIGURE 3-3 for typical enclosure installations using a PS150/CH150.
iGenesis Application Manual – Genesis NP and NPX Series US-NP-AM-002,
June 2006.
WARNING
NOTE
PS150/CH150 12 V Charging Regulators
4
FIGURE 3-1. The PS150 connected to a CR1000 and AC power
FIGURE 3-2. The PS150 connected to a CR1000 and solar panel
PS150/CH150 12 V Charging Regulators
5
FIGURE 3-3. CH150 connected to BP24 battery pack and CR1000
3.1 Connecting Power
Although the power supply and battery are low voltage,
they do have the ability to supply a high current and
could potentially heat up a metal ring, watch band, or
bracelet enough to burn skin or melt metal when
shorted. Remove rings, watches, or bracelets before
hooking up power and connecting a battery.
The CH/PS150 allow both solar and AC power to be simultaneously
connected.
Toggle the power supply switch to Off before connecting power to the power
supply.
The switch on the CH/PS150 only controls power going to the
12V and Gterminal blocks. The battery is continuously charged
regardless of the switch setting as long as a charging voltage is
present.
3.1.1 Solar Panel
To prevent sparking while wiring up the solar panel,
either lay the solar panel face down on its packing box
or cover it with something opaque to block the sunlight
while wiring up the panel.
WARNING
NOTE
WARNING
PS150/CH150 12 V Charging Regulators
6
Connect the black (negative) wire from the solar panel to the terminal block
marked Gthat is directly adjacent to the SOLAR terminal block. Connect the
red (positive) wire from an unregulated solar panel to the terminal block
marked SOLAR. See FIGURE 3-4.
FIGURE 3-4. Solar panel connections on PS150
3.1.2 AC/DC Power
Double check the input voltages coming in to the charger/regulator with a volt
meter.
AC Input Voltage: 14 to 24 VAC RMS
DC Input Voltage: 15 to 40 VDC
Exceeding the voltages listed above will damage the
power supply.
Disconnect the primary side of the AC/DC power before connecting wires to
the PS150.
Connect the secondary power supply wires to the two terminal blocks marked
CHG. There is no polarity on the CHG terminal blocks, so it does not matter
which wire goes to which CHG terminal block, but make sure there is only
ONE wire per block. See FIGURE 3-5.
WARNING
PS150/CH150 12 V Charging Regulators
7
FIGURE 3-5. AC power connections on PS150
3.2 Plug In the Battery
The battery used with the PS150 is shipped inside of the PS150 case if the
power supply is NOT installed inside an enclosure. If the PS150 is mounted
inside an enclosure, then the battery will be located separately packed in one of
the packing boxes. This is done to minimize any damage that could occur if the
power supply should get loose from its mounts inside the enclosure during
shipment. The battery will NOT be plugged into the PS150. This is done to
minimize discharging the battery.
To remove the lid from the PS150, pull up on the PS150 lid latch and slide the
lid off as shown in FIGURE 3-6 and FIGURE 3-7.
Do not remove the tape holding the battery wiring
harness to the top of the battery! The tape is used to
keep the battery wiring harness out of the way of the
rubber bumpers on the inside of the lid.
WARNING
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1
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1
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