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Tech Tip - Amp Hour Meters With the use of an Amp-Hour meter, you can tell the condition of your batteries at a glance. An amp-hour meter is the best indicator of your system’s condition. As you use power, the meter counts how many amp hours are used. As the battery is charged, the meter goes backwards, toward zero. When the battery is full, the meter reads zero. This type of meter is a must for nickel-cadmium and nickel-iron batteries, where it is hard to tell state of charge from voltage, or specific gravity. The main destroyer of lead acid batteries is sulfation caused by undercharging. These sophisticated meters help you keep track of your battery’s state of charge so you can keep ’em charged. Get maximum life out of your batteries and save money and system down time. Note: Amp hour meters lose accuracy if batteries are always run in a very discharged state. |
The Battery Watch is a smart piece of equipment which automatically detects battery voltages between 7V and 32V.
It can be used to monitor
approximate battery state-of charge on 12- and 24-volt battery systems.
Three LEDs – green, red and yellow – light in various combinations to
indicate battery voltage.
An audio alarm can be set to sound at high or low voltage levels and all settings are programmable by the user with a push button on the front panel.
| Samlex Battery Watch | 028-02257 | $55 |
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www.bogartengineering.com
This
updated version of the 2020 amp-hour meter operates on 12, 24 or 48
volts. It reads volts, amps and amp-hours on an LED display. Amp-hours can
be displayed in actual amp-hour numbers or as "% full". An LED indicates a
charging battery and flashes when it is fully charged. Another LED flashes
when batteries should be recharged or equalized, and during low battery
voltage. It also records minimum and maximum voltage, number of days since
last charge, days since last equalized, and total lifetime amp-hours
withdrawn from the batteries. The TriMetric can be located hundreds of feet
away from batteries using inexpensive 4-conductor twisted-pair meter wire. A
shunt is required for operation. Use the 500-amp shunt if you have a 12V
inverter larger than 800 watts or a 24V inverter larger than 1600 watts. Use
a 1000-amp 100mV shunt for systems with stacked XW inverters or where
continuous current is over 300 amps. The 1000A/100mV shunt has the same
resistance as the 500A/50mV shunt and may be used interchangeably.
Order shunt separately.
Allows for a maximum battery bank size of 2500 amp hours. The positive
lead to the Trimetric should be fused with a 1 amp fuse. Flush mount using a
double gang box or use surface mount using the
Surface Mount Box.
The RV version
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Made in USA.
Dimensions: 4.5" x 4.75". 2 year warranty.
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Pentametric Battery Monitor
The Pentametric monitor measures 1 or 2 battery systems with a common negative. With one battery system, battery current plus two charging sources/loads can be measured.
The PentaMetric battery monitor system offers a lot more
capability than the TriMetric monitor. The complete system consists of 3
main
components, along with a shunt:
Input unit
(near batteries)
Display unit (shown
to right)
Computer Interface
Unit
Shunt
It can monitor up to 3 shunts: For example; measure total solar input and wind input independently in addition to monitoring battery "state of charge". You can access the data with display unit (shown above) with LCD display and buttons up to 1000 feet from batteries.
An optional computer interface with (Windows) software allows you to control and read out all data from the computer. It has a relay output to control a generator or external alarm and it has audible and visual alarms for high and low battery conditions. 2 year warranty.
Basic measurements include:
2 voltage channels: 8-100 volts. (For example you can monitor volts
from two battery systems.
3 amperage channels ±.01-200 Amps (with 100A/100mV shunt).± 0.1-1000
Amps (with 500A/50mV or 1000A/10mV shunt)
Each of these requires a
separate
Temperature -20 to +65 degrees C
| Secondary measurements
Amp hour (3 channels) to ±83,000 Amp-hours Data logging functions. There are 3 types of data logging functions. With the computer interface all 3 types can be output to spreadsheet file. 1. "Periodically logged data" can record any or all of the following at regular intervals: once per day to up to once per minute, Amp hours (3 channels), Watt hours (2 channels), Temperature max/min (1 channel), Volts (1 channel), Amps (1 channel) 2. "Battery discharge voltage profile" data logs volts and amps every time charge level changes by 5% (or 10%) for 1 or 2 battery systems. 3. "Battery cycle efficiency data" documents system efficiency for up to 2 battery systems. |
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LinkLITE meter
The LinkLITE monitor can measure amps up to 999 (depending on the shunt used) and amp-hours up to 999. It selectively displays voltage, net amps, consumed amp-hours and remaining battery capacity in percentage.
It is equipped with an internal programmable alarm relay, to run a generator when needed or to turn off devices when the battery voltage exceeds programmable boundaries. For use on 12- and 24-volt systems. A 500A/50mV shunt is included.
1-year warranty
LinkPRO
meter
The LinkPRO has all the features of the LinkLITE, but measures amps up to 9999 (depending on the shunt used) and amp-hours up to 9999. The LinkPRO also includes a time remaining display, battery temperature sensor input, additional programmable alarm relay functions, communication/expansion port, and storage of a wide range of historical event data in internal memory.
The LinkPRO Communications Kit includes an isolated meter to RS-232 interface box and interface cable. The LinkPRO Battery Monitor replaces and expands the features of the XBM Battery Monitor. For use on 12- and 24-volt systems. 500A/50mV shunt is included.
1-year warranty
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Description |
PART NUMBER |
OUR PRICE |
Purchase |
| LinkLITE – meter w/ 500A/50mV shunt | 028-01141 | $270 |
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| LinkPRO – meter w/ 500A/50mV shunt | 028-01142 | $320 |
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| Connection Kit -50' (15m) - for LITE/PRO | 028-01122 | $115 |
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| Communication Kit – LinkPRO only |
028-01120 |
$225 |
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| Temperature sensor – for LinkPRO only 32' (10m) | 028-01123 | $75 |
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| Mounting Bracket | 028-09014 | $7 |
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| Fuse (3) | 053-02629.3 | $2 |
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| Fuse Holder, Inline | 053-02663 | $5 |
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Bulk meter wire 8-conductor 18 AWG (OUR PRICE/ft.) |
050-01252 | $0.40 |
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The FLEXnet DC System Monitor integrates with an OutBack MATE communications device, providing you with the data you need concerning your system’s health, performance and efficiency. Easily see your system’s current condition with this at-a-glance display.
·Screen shows current
state-of-charge and whether you are currently charging or discharging your
batteries.
·It monitors the amount of power your system is currently
producing and consuming as well as the amount of
power going IN and OUT of
your battery bank. It allows the Mate to display real-time production
monitoring
of DC sources, such as a solar array or small wind turbine, as
well as consumption by loads.
·It also displays the cumulative energy your
system has produced and consumed as well as the total amount
of energy that
has gone to charging your batteries today.
·Screen displays today’s
lowest state-of-charge and allows you to see how your overall system
production
compares to system consumption.
·Review historical energy
production and consumption data for the most recent 128 days, including the
minimum
battery state-of-charge reached for each day.
·Screen can be
used to watch power system production and consumption trends.
A HUB is required to connect more than one inverter to the same load
or to connect inverters, MATE's and MX charge controllers to allow
programming and monitoring of the entire system by the MATE.
The RTS remote temperature sensor is important for accurate battery
charging, especially if the batteries get very warm or cold. If used
with a HUB, one temperature sensor can be shared by all inverters and MX
charge controllers.
PRICING & PURCHASE
The TM-500A is similar to the Trimetric Meter in a special package with fuse and fuse holder. An improved display shows volts, amps, amp-hours and percent without changing mode. Very easy to install and use. Installation is simplified with a special shunt that includes a phone-type jack. Install the shunt, plug the special six-conductor cable in to the shunt and meter and all the connections are made! Meter shows days since fully charged, cumulative amp hours, recharge indicator, low voltage indicator, and full charge indicator.
Comes with a 50’ six conductor cable with jacks, fuse, and a special 500A/50mV shunt. Also is capable of turning DR, PS, and UX inverters on and off. 2550 amp-hour max battery size. Longer length cables are available for long runs. Use the 48 volt adapter for 48 volt systems.
The TM-500A is not recommended for use with Outback PS2DC and PS4DC power system boxes because the Outback shunts will not match the shunt circuit board that comes with the meter. We recommend using the Tri-metric with the PS2DC or PS4DC.
Dimensions: 4.55" x 4.55" x 1.725".
2 year warranty.
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Model |
Description |
PART NUMBER |
OUR PRICE |
Purchase |
|
TM-500A |
Amp Hour Meter w/shunt |
028-01405 |
$365 |
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TM-500NS |
Amp Hour Meter w/o shunt |
028-01403 |
$315 |
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TM48 |
48 Volt Adapter |
028-01413 |
$71 |
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TC50 |
50 foot cable |
028-01422 |
$36 |
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Xantrex Battery Monitor XBM
The Xantrex battery monitor uses sophisticated microprocessor
technology to provide complete battery status information
for your battery. A simple display
shows volts, aps, amp-hours consumed,
and operating time remaining.
An optional communications
kit is available that contains hardware
and software to enable battery
monitoring from a Windows-based
laptop. The splash-proof panels
allow for outdoor mounting and
hands free operation. XBM is compatible with 12- and 24-volt
DC systems and comes with a 500A/50mV shunt. Front panel
measures 2.56" square and the back fits in a 2.05" hole.
1-year
warranty.
| Description | PART NUMBER | OUR PRICE | Purchase |
| XBM meter w/ 500A/50mV shunt | 028-01119 | $280 |
|
| XBM communication kit with software for Windows | 028-01120 | $215 |
|
| XBM connection kit – 32 feet | 028-01121 | $88 |
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| XBM connection kit – 50 feet | 028-01122 | $110 |
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| XBM temperature sensor kit – 32 feet | 028-01123 | $68 |
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| XBM temperature sensor kit – 64 feet | 028-01124 | $99 |
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This digital monitor and shunt combination can measure amps and amp
hours from two charging sources of up to 40 amps each on a 12-, 24- or
48-volt battery system. The monitor and shunt module are connected with a
cat-5 network cable.
The monitor stays in the battery voltage mode until the select
button is pushed. The button can turn on the backlight, advance through
display settings, reset amp hours, lock the display in any mode or activate
a scroll setting. Backlight comes on for 15 seconds every time the button is
pushed and stays on in scroll mode.
Display module requires a shunt module to operate. Order both items.
Cat 5e cable required to connect display to shunt.
| Description | PART NUMBER | OUR PRICE | Purchase |
| Atkinson PVWDM digital monitor
with shunt module |
028-A0230 | $250 |
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| Atkinson PVWDM digital monitor | 028-02205 | $135 |
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| Atkinson PVWSM shunt module | 028-02207 | $125 |
|
| Cat-5 Cable (If you don't have it you will need get it) | Buy Now | ||
| A8812-1 AcquiSuite DR Acquisition Server | |
| R9120-3 ModHopper Wireless Transceiver | |
| A89DC-08 Multi-Circuit DC Monitor (MCDM) | |
| H8035/8036 Networked Power Meters | |
| Weather Stations |
A8812-1
AcquiSuite DR Acquisition Server
The AcquiSuite data acquisition server provides “plug & play” connectivity to
detect and configure Modbus devices in just seconds. Data from the connected
Modbus devices are time stamped and stored in memory at user selected intervals.
This interval data can be stored by the AcquiSuite or updated to a destination
of the user’s choice through XML or CSV. Data can also be accessed using the
modem or LAN connection using any web browser. This enables the user contractor
to push/pull data into energy kiosks, building dashboards, or other custom
software applications or web interfaces.
The A8812-1 has 8 flex IO inputs; each
input can monitor analog, resistance, or pulse data. The AcquiSuite provides a
cost-effective solution for monitoring solar system performance down to the
string and panel level.
| Model | Description | PART NUMBER | OUR PRICE | Purchase |
| A8812-1 | AcquiSuite DR acquisition server | 029-02011 | $1,649 |
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The ModHopper provides a self-optimizing wireless interface between multiple Modbus devices and the AcquiSuite server. The device uses 900Mhz, FHSS (frequency hopping spread spectrum) technology.
It’s the perfect solution for wireless communication with solar current monitors, net meters, inverters, and environmental sensors (weather stations). There are two pulse inputs available on each ModHopper and users can connect up to 32 hardwired Modbus devices. The R9120-3 has a range up to 1500 feet (typical indoor).
Combining ModHoppers with the AcquiSuite and sensors from Obvius provides solar users and contractors with a complete wireless monitoring package.
| Model | Description | PART NUMBER | OUR PRICE | Purchase |
| R9120-3 | ModHopper wireless transceiver | 029-02044 | $535 |
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The MCDM allows owners and installers of PV systems or other DC generating applications to monitor the performance of each device individually by providing high accuracy direct current readings.
It can monitor 8 sources, strings or subarrays using 8 non-contact Hall Effect current sensors, and provides a Modbus RS485 output. If used with the AcquiSuite the user can utilize many additional features including alarming. Up to 247 MCDMs can be networked when used with the wireless ModHoppers.
Use
the MCDM to monitor key performance parameters and quickly
detect issues with panels or strings.
| Model | Description | PART NUMBER | OUR PRICE | Purchase |
| A89DC-08 | Multi-circuit DC monitor (MCDM) | 029-02015 | $995 |
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The H8035 and H8036 are three-phase networked (Modbus RTU) AC power meters. They can be used to measure three-phase or single inverter output or building loads. These innovative meters combine power metering electronics and high-accuracy industrial-grade current transformers (CTs) in a single package, eliminating the need for external electrical enclosures and greatly reducing installation time and cost. There are two application specific platforms to choose from.
The Basic Enercept Energy Meters (H8035) measure kW and kWh.
The Enercept Enhanced Data Stream meters (H8036) output 26 energy variables including kW, kWh, volts, amps and power factor, making them ideal for power monitoring and diagnostics.
Up to 63 power meters can be daisy-chained on a single RS-485 network. Connect power meters directly to AcquiSuite via Modbus RS485 output. They can also be use with the ModHopper for wireless connectivity.
Call for higher current meters.
Call for pricing on larger power meters.
| Model | Description | PART NUMBER | OUR PRICE | Purchase |
| H8035 | Power meter - basic 100A | 029-02022 | $842 |
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| H8036 | Power meter - enhanced 100A | 029-02041 | $1,061 |
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By integrating a wireless or wired “plug and play” weather station with the AcquiSuite™ and ModHopper subsystems, you can add any combination of solar radiance, wind direction and speed, temperature and relative humidity, barometric pressure and rainfall and leaf wetness.
Call for a complete list of wired and wireless sensors and the weather station will be assembled to order.
These weather stations automatically detect and configure Modbus devices in just seconds, reducing installation time and costs. A basic wired weather station that gives temperature and irradiance and a wireless one with wind speed added are listed on the OUR PRICE list.
Other options
are also available.
| Model | Description | PART NUMBER | OUR PRICE | Purchase |
| Wireless weather station w/ wind speed & humidity Call | 029-0XXX1 | $3,285 |
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| Wired weather station w/ temperature and irradiance Call | 029-0XXX2 | $1,195 |
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