MARK 15, 22 Spec 1 75 15 SHEET
User Manual: Mark 75
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The MARK PV Controllers pro-
vide ideal battery charging for
solar systems while protecting
these batteries from over-
charging. These units provide a
cost effective, flush mounted,
controller with complete digital
monitoring. The MARK PV Con-
trollers are designed for 12 volt
systems and are rated from 15 to
22 amps of charging. These
controllers are designed for use
in mobile or stationary photovol-
taic energy systems.
The standard
MARK/15 is UL
recognized.
OPERATION
SWITCHING SHUNT REGULATION -
The MARK PV Controller will allow
maximum array current to flow into
the battery through a blocking
diode, lighting the "SOLAR
CHARGING" light (LED), until the
battery voltage reaches the charge
termination set-point. At this point,
a shunt transistor will turn on,
shunting the solar array, turning off
the "SOLAR CHARGING" LED,
lighting the "BATTERY CHARGED"
light and halting any further battery
charging.
When the battery voltage drops to
the charge resumption set-point, the
shunt transistor will turn off and
charging will resume. The result is
that when battery capacity is low,
charging will be continuous. As the
battery charges up, current will pass
into the battery for shorter and
shorter periods, until at full charge,
it will pulse current into the battery
to achieve and maintain full charge.
FEATURES
CHARGE REGULATION
• For 12 volt systems
• Rated from 15 to 22 amps (refer
to serial number tag on unit for
rating).
• Switching shunt, pulse charging
• Low switching frequency (no
noise)
• No minimum operating voltage
(can charge a dead battery)
• Field adjustable set-points
DESIGN FEATURES
• 100% solid-state
• Designed for rugged mobile use
• Simple design (low component
count)
• Over-current protection –
battery fuse, array fuse
• Reverse leakage protection -
blocking diode
• Reverse polarity protection
• Lightning protection
• Input noise suppression
• Low power consumption
• 10 awg terminal block: (22 amp
units)
• 12 awg terminal block: (15 amp
units)
• Conformal coated circuit board
• Designed to operate at very low
or high temperatures
MONITORING
• Very accurate digital monitoring
of:
a) System battery voltage
b) Solar charge current
c) Charge set-point calibration
• "SOLAR CHARGING" light
• "BATTERY CHARGED" light
• Colored BATTERY CONDITION
bar-graph
• BAR or DOT display
• Power saver display mode
MOUNTING
• Flush mount
• Knock-out box available for wall
mounting (4x7 BOX accessory)
ACCESSORIES
BOX 4X7 - Knock-out box used for
wall mounting.
For MARK/15 units.
Contact factory for
specific information
MARK PV Series
Specifications
PHOTOVOLTAIC CHARGE CONTROLLER
MARK/15
tm
tm
tm
tm
tm
tm
PARAMETERS UNITS VALUE
Array Current, Continuous (Isc) (Amps) 15, 22 (Refer to Serial Number Tag on Unit)
Array Current, Max (60 seconds) (Amps) 130% of rated charge current
Nominal Voltage (Volts) 12
Array Voltage, Max (Voc) (Volts) 26
Operating Voltage at Battery, Min
Charge Control (Volts) 0
LCD Metering (Volts) 7.8
LED Bar-graph (Volts) 10.5
Current Consumption
Quiescent (Tare) (Milliamps) 8.8
Charging (with LED Bar-graph off) (Milliamps) 12.8
LED Bar-graph (Milliamps per LED) 5
Charge Termination, Factory Set (Volts) 14.4 + .2
Charge Termination, Adjustable Range (1) (Volts) 13.6 – 15.3
Charge Resumption, Factory Set (1) (Volts) 13.0 + .2
Voltage Drop, Array to Battery @ 15 amp
Controller, Max (Volts) 0.5
Controller and 2 fuses, Max (Volts) 0.8
LCD Meter Accuracy
DC Voltage (Percent) 1 %
DC Current (Percent) 2 %
Operating Temperature Range (°C) -30 to 50
Storage Temperature Range (°C) -40 to 70
Notes:
(1) The Charge Termination / Resumption span is fixed. The Resumption set-point changes as the Termination set-
point is adjusted.
SPECIALTY CONCEPTS MARK PV CONTROLLER
ACCESSORIES
4x7 BOX
PART NUMBERING KEY
Model / Nominal Current
EXAMPLE: Nominal Voltage
MARK/15-12
MARK/22-12
Specifications and product availability subject to change without notice.
Shipping weight: MARK/15 - 1 lbs. (.5 Kg.)
4X7 BOX - 1.25 lbs. (.6 Kgs.)
DIMENSIONS
In Inches (cm)
4x7 BOX (ACCESSORY)
MARK/15 unit depth: 2.25 (5.7) 4x7 BOX depth: 2.25 (5.7)
MARK/15 with 4x7 BOX depth: 2.55 (6.35)
7.0
(
17.8
)
5.0
(
12.7
)
1.75
(
4.4
)
3.75
(9.5)
Dia:
.275 (.7)
6.44
(
16.35
)
7.50
(
19.05
)
4.25
(10.80) 3.19
(8.10)
Dia:
.18 (.46)
SPECIALTY CONCEPTS, INC.
8954 Mason Ave. Ph:(818) 998-5238 E-mail: speccon@earthlink.net
Chatsworth, CA 91311 USA, Fx:(818) 998-5253 Web-site: www.specialtyconcepts.com 1/03
