BinMaster MAXIMA+, MAXIMA+-GRSS-1-GRP-23, MAXIMA+-GRSS-1-GRP-3, MAXIMA+-GRSS-1-GRP-2, MAXIMA+-GRFC-1-GRP-1 User manual
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MAXIMA+ Series
Rotary Level Indicator
BinMaster: Division of Garner Industries
OPERATING INSTRUCTIONS
PLEASE READ CAREFULLY
925-0268 Rev C 1020
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TABLE OF CONTENTS
GENERAL SPECIFICATIONS ............................................................................................ 3
SAFETY SUMMARY .................................................................................................... 4
1.0 INTRODUCTION .......................................................................................................... 5
2.0 INSTALLATION ............................................................................................................. 5
2.1 Location and Mounting ......................................................................................... 5
2.2 Input Power and Field Wiring ................................................................................. 6
2.3 Grounding .............................................................................................................. 7
3.0 RELAYS ........................................................................................................................ 7
3.1 DPDT Relay ........................................................................................................... 7
3.2 Fail-Safe High ........................................................................................................ 7
3.3 Fail-Safe Low ......................................................................................................... 8
3.4 STATUS Relay ....................................................................................................... 8
4.0 TIME DELAY ................................................................................................................. 9
4.1 Changing Time Delay ............................................................................................ 9
5.0 EXTERNAL LED ......................................................................................................... 10
6.0 WARRANTY AND CUSTOMER SERVICE ............................................................... 10
7.0 DISPOSAL .................................................................................................................. 10
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
EUROPEAN DECLARATION OF CONFORMITY ...................................................11
925-0268 Rev C 1020
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SPECIFICATIONS
MAXIMA+ GENERAL SPECIFICATIONS
Supply: AC MODEL 24/115/230 VAC 50/60 Hz (selectable)
DC MODELS 12 VDC Model or 24 VDC Model
Supply Tolerance: -15% +10%
Load: AC Model = 8 VA; DC Models = 4 VA
External Overcurrent Protection:
AC MODEL 24 VAC = 750 mA; 115 VAC = 200 mA; 230 VAC = 100 mA
DC MODELS Internally protected, no external fusing required
Ambient Temperature:
(Electronics) -40°F to +158°F (-40°C to +70°C)
Enclosure: Type 4X, 5, 9, & 12 (Hazardous
locations, Class II, Groups E, F & G)
DPDT Relay Output: 10 Amps 250 VAC
Fail-Safe: Switch selectable "High" or "Low" level modes
Status Indicator Relay: SPDT = 10 A 250 VAC
(optional) DC Solid State Relay = 1 A 42 VDC
(optional) AC Solid State Relay = 1 A 250 VAC
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
Time Delay: Selectable 5 seconds (default); programmable to 25 seconds
Mounting: 1-1/4” NPT
Conduit Entry: 3/4" NPT
1020925-0268 Rev C
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SAFETY
SAFETY SUMMARY
Review the following safety precautions to avoid injury and prevent damage to the equipment.
The product should be installed, commissioned, and maintained by qualied and authorized
personnel only.
Install according to installation instructions and comply with all national and local codes.
Use electrical wire that is sized and rated for the maximum voltage and current of the application.
Properly ground the enclosure to an adequate earth ground.
Observe all terminal and relay contact ratings as called out on the nameplate and in the
installation manual.
Ensure that the enclosure cover is in place and secured tightly during normal operation.
If this product is used in a manner not specied by the manufacturer, the safety protection
could be compromised.
Safety Terms and Symbols
WARNING: Warning statements identify conditions or practices that could result in
injury or loss of life. Risk of electrical shock.
CAUTION: Caution statements identify conditions or practices that could result in
damage to this product or other property.
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
Safety Precaution
CAUTION: Before removing the enclosure cover, open all circuits entering the
enclosure. Be aware that there may be more than one live circuit.
925-0268 Rev C 1020
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INTRODUCTION
1.0 INTRODUCTION
The BinMaster MAXIMA+ is a rotating paddle style level sensor that provides reliable point level
detection for bulk solids, including powder, pellet, and granular materials. The unit's status is con
tinually monitored, and its fail-safe circuitry will fail to a "safe" condition in the event of a unit failure or power failure. A visual LED continually indicates the sensor’s status, giving a quick visual
monitoring of paddle rotation, covered condition or fault condition. A status relay is also provided
for monitoring the status of the sensor.
The MAXIMA+ motor rotates the drive shaft and paddle at 1 RPM (2 RPM on 24 VDC Model).
When the vessel material lls to the level of the indicator paddle, the material causes the paddle
to stop rotating indicating a covered condition. When the material falls away, the paddle starts
rotating again to indicate an uncovered condition.
-
2.0 INSTALLATION
2.1 Location and Mounting
TOP MOUNT
1. Locate and cut hole in top of bin to t outside diameter
of 1-1/4” pipe coupling (1.950”).
2. Position coupling halfway into bin and weld.
3. Turn unit so conduit opening is in desired location.
4. Add 1/4” extension pipe to desired length with standard
1/4” coupling on bottom end.
5. Cut 1-1 /4” support pipe approximately 4” shorter than overall
length of 1/4” pipe shaft when used with exible coupling.
6. Insert 1-1/4” pipe into coupling and tighten.
7. Insert paddle into 1/4” coupling and drill holes for lock pins.
SIDE MOUNT
1. Locate and cut hole in side of bin to t outside diameter
of 1-1/4” pipe coupling.
2. Weld on half of standard 1-1/4” pipe coupling to bin wall
ush with inside of bin.
3. Insert hub into coupling and turn so the conduit openings
are pointed down.
4. Screw paddle into place and replace lock pin.
5. Shaft and paddle should be shielded in low level
mounting when subjected to material ow.
6. For side mount, a solid coupler is recommended.
Figure 1
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
Figure 2
1020925-0268 Rev C
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MOUNTING PLATES
1NC 1C 1NO 2NO 2C 2NC L1 L2/N 24 VAC
VOLTAGE SW
NC NO C
FAI L
SAFE
H
L
TI ME
DELAY
SETUP
ON
OFF
C U
STAT US
NRM
PLS
STAT US
RELAY
115
LINE /
NEUTRAL
LINE
SET VOLTAGE
SELECTOR SWI TCH
FOR THE CORRECT
LI NE VOLTAGE
(115 or
230 VAC)
24 VAC
(opti onal)
DPDT RELAY CONTACTS
10 A 250 VAC
LED
Mounting plates are necessary when a completely assembled unit is to be mounted on the bin
wall from the outside. A 5-1/2” hole is cut in the bin. Six bolt holes are drilled around the hole to
match the mounting plate. The plate, with the unit attached, is then bolted in place. All mounting plates are available in carbon and stainless steel.
Full Coupling Half Coupling
For use with all rotary
level controls. This
model is used for
top of bin installations where shaft
extensions and shaft
For use with all
rotary level controls. This model
is used primarily for side of bin
installations.
guards are required.
Figure 4
Figure 5
2.2 Input Power and Field Wiring
The MAXIMA+ is available in an AC Model and two DC Models. See the voltage rating on the name-
plate for the appropriate supply voltage. The AC Model can be powered from either a 24 VAC, 115
VAC, or 230 VAC supply (see diagram below). The voltage selector switch must be put in the correct
voltage position for the power supplied to the LINE input terminals N and L. Field wiring should conform to all national and local electrical codes and any other agency or authority having jurisdiction over the
installation. For power input, use wire that is sized and rated for the maximum voltage and current as per
equipment ratings and has a temperature rating of at least 70˚C. For relay outputs, use wire that is sized and
rated for the maximum voltage and current as per application, up to 250 VAC 10A. Installation shall be done
by qualied personnel.
Caution: Use supply wires suitable for 25˚C above surrounding ambient. Attention: Utiliser des ls
D'Alimentation qui conviennent a une temperature de 25˚C au-dessus de la temperature ambiante.
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
AC Models
Figure 6
115 or 230 VAC Input Power
1. Conrm that the voltage selector switch is in the
correct position for the voltage applied.
2. The LINE INPUT is connected to terminals
L1 and L2/N when the input voltage is
either 115 VAC or 230 VAC.
3. If your circuit has a neutral conductor,
connect it to the L2/N terminal. Connect
the hot conductor to the L1 terminal.
4. External overcurrent protection:
115 VAC = 200 mA 230 VAC = 100 mA
24 VAC Input Power
1. The 24 VAC terminals are used
when the input voltage is 24 VAC.
2. When powered from a 24 VAC system,
neither conductor can be grounded.
3. External overcurrent protection 24 VAC = 750 mA
925-0268 Rev C 1020
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DC MAXIMA+ Wiring
NC C NO NO C NC
1 1 1 2 2 2
NC C NO NO C NC
1 1 1 2 2 2
UNCOVERED COVERED
FAIL SAFE "HIGH" RELAY CONTACT POSITI ON
ON
ON
1 2
+
_
STAT US
DC
POWER
IN
DC MAXIMA+ units are available in either
a 24 VDC or 12 VDC model.
1. Conrm that the DC MAXIMA+ unit is rated for
the DC voltage that is used.
2. Refer the drawing to the right for correct terminal
location.
3. The positive (+) conductor of the power input is
connected to the (+) terminal of the DC INPUT.
4. The negative (-) conductor of the input power is
connected to the (-) terminal of the DC INPUT.
2.3 Grounding
An equipment grounding connection (earth ground) must be supplied to the unit for safety.
Connect the ground conductor to the green equipment grounding screw identied in the
enclosure.
3.0 RELAYS
Figure 7
The MAXIMA+ has two dierent relays, a DPDT relay and a STATUS relay. The DPDT
relay is used for covered and uncovered indication. The Status relay is used for monitoring
the status of the MAXIMA+ unit. The DPDT relay outputs may be connected to dierent phases,
only for voltages up to 125 VAC. For voltages above 125 VAC, the relays shall be connected to
the same phase circuit only.
3.1 DPDT Relay
The DPDT relay utilizes a Fail-Safe selection jumper F/S. There are two positions for this jumper
High (H) and Low (L). A Fail-Safe condition means that the DPDT relay contact positions are set
up so that in the event of a fault condition or a power failure the relay will be de-energized and
the contacts will indicate a condition that is deemed safe for the application.
3.2 Fail-Safe High
Fail-Safe High means that the relay will be energized when the paddle is rotating (uncovered)
and will de-energize when the paddle is covered. In this mode, a fault condition or a power failure will cause the relay contacts to indicate that the paddle is covered, whether it is or not.
Figure 8
FAIL-SAFE “HIGH” RELAY CONTACT POSITION
UNCOVERED COVERED
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
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1020925-0268 Rev C
3.3 Fail-Safe Low
NC C NO NO C NC
1 1 1 2 2 2
NC C NO NO C NC
1 1 1 2 2 2
UNCOVERED COVERED
FAIL SAFE "LOW" RELAY CONTACT POSITION
Fail-Safe Low means that the relay will be de-energized when the paddle is rotating (uncovered) and will energize when the paddle is covered. In this mode, a fault condition or a power
failure will cause the relay contacts to indicate that the paddle is uncovered whether it is or
not.
Figure 9
FAIL-SAFE “LOW” RELAY CONTACT POSITION
UNCOVERED COVERED
3.4 Status Relay
The Status Relay indicates the status of the MAXIMA+. There are two modes of operation for
the Status Relay, Normal (NRM) and Pulse (PLS). The mode for the Status Relay is selected
by the STATUS jumper at the top of the circuit board (see Figure 10).
In the NORMAL (NRM) position, the Status Relay is energized when the MAXIMA+ is operating correctly. In this mode the shaft rotation is monitored. If the shaft is not rotating then the
“covered” switch is monitored to see if there is a covered condition. If the shaft is not rotating
and the “covered switch” is not indicating covers, then the Maxima will go into a Fault condition. A Fault condition is indicated by both the Status Relay and the DPDT de-energizing and
the visual LED going o.
Figure 10
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
925-0268 Rev C 1020
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In NRM mode, the Status Relay will have a connection between the C and the NO terminal. In a Fault condition there will be a connection between the C and NC terminals when
using the standard SPDT relay. The solid state relays are SPST, they do not use the NC
terminal. In Normal mode with either of the solid state relay options, there will be a con
nection between the C and NO terminal when the
MAXIMA+
is operating normal. During a
-
Fault condition the there will be no connection between the C and NO terminal.
In the Pulse (PLS) mode it is recommended to have one of the solid state relay options.
In Pulse Mode (PLS) the Status Relay will be energized during a covered condition and
there will be a connection between the C and NO terminals. When the paddle is rotating
(uncovered) the Status Relay will be pulsing ON and OFF like the visual LED. During a
Fault condition the Status Relay will de-energize.
4.0 TIME DELAY
The MAXIMA+ has selectable time delay for the DPDT relay contacts. This time delay can
be selected for switching from an uncovered to a covered condition or it can be selected for
switching between a covered to an uncovered condition or both. The time delay is selected
by the two time delay DIP switches. Switch 1 is for selecting a time delay for going from an
uncovered to a covered condition. Switch 2 is for selecting a time delay for going from a
covered to an uncovered condition. When the switch is OFF there is no time delay. When
the switch is ON there will be a time delay for that condition.
By default the time delay is set to 5 seconds for both switches. This time delay can be
changed by using the SETUP push button switch on the circuit board. (Refer to Figure 10).
The Delay Time can be set for each switch independently or for both together if the same
delay time is desired for both ”delay on covered” and “delay on uncovered”. The maximum
time delay that can be programmed is 25 seconds. Follow the procedure in 4.1 to change
the delay time.
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
4.1 Changing Delay Time
Step 1. Select the switch for the delay time that you want to change by placing it in the
ON position. Switch 1 is for “Delay on Covered”. Switch 2 is for “Delay on Uncovered”.
The new delay time will be set for switch or switches in the ON position. At least one of
the delay switches must be ON in order to enter the programming mode.
Step 2. Press and hold the SETUP switch (refer to Figure 10) for three seconds to initiate
the programming mode. The LED will ash for these three seconds at a fast rate to indicate
entry of the program mode. Releasing the SETUP switch during this initial three second
period will abort the program mode and leave the delay times unchanged.
Step 3. After the three seconds has passed, continue holding the SETUP switch for the
desired amount of delay time in seconds. The LED stops ashing and will blink every
second to give you indication of the delay time so far. Each one second ash is one
second of delay time.
Step 4. After the desired amount of delay has passed, let go of the SETUP switch and the
delay time will be set for the delay switches that are in the ON position. You may enter up
to 25 seconds. Holding the SETUP switch longer than this will have no eect and limit the
delay to 25 seconds.
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5.0 EXTERNAL LED
MAXIMA+ models include an external view LED. This LED provides an externally visible
status indication for the MAXIMA+. When this LED is ashing, it indicates a normal Uncovered condition. When this LED is ON steady, it indicates a Covered condition. When
this LED is OFF, it indicates a power failure or fault condition.
6.0 WARRANTY AND CUSTOMER SERVICE
6.1 Limited Warranty
The manufacturer warrants this equipment for two (2) years according to the following
terms:
1.) This warranty extends to the original purchaser only and commences on the date
of original purchase. The original purchaser must mail to the manufacturer the
"Warranty Registration" card to conrm the equipment purchase. Failure to do
so may void the warranty.
2.) The manufacturer will repair or replace any part of this equipment found to be
defective, provided such part is delivered prepaid, to the factory. Manufacturer's
obligation is limited to the cost of material and labor to repair or replace and does
not include transportation expenses.
3.) This warranty shall not apply to any product that has, in our judgment, been
tampered with, altered, subject to misuse, neglect or accident. In addition, the
warranty does not extend to repairs made necessary by normal wear.
4.) This warranty is in lieu of all other warranties, expressed or implied.
7.0 DISPOSAL
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
This product consists of materials that can be recycled by specialized recycling companies. It uses recyclable materials and the electronics are designed to be easily separated. Consult local authorities for proper disposal locations.
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Declaration of Conformity
BinMaster declares that all models of the MAXIMA+ level control devices as listed below comply
with the following directives and harmonized standards. This product if installed, operated and
maintained as described in this manual will provide a safe and reliable point level control device
for bulk solid materials.
Low Voltage Directive 73/23/EEC
Standard IEC 61010-1:2001
Product: Rotary point level control device.
Models: MAXIMA+ AC Model 24 VAC / 115 VAC / 230 VAC; DC Models 12 VDC and 24 VDC
All test reports and documentation are held and can be obtained from BinMaster.
Manufacturing Location: Lincoln, Nebraska, USA
Scott McLain
President
3/25/2008
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
1020925-0268 Rev C
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Mounting Instructions
Always mount unit with
conduit opening down
MAXIMA+ SERIES ROTARY LEVEL INDICATOR
Conduit Seal
When installing this level indicator in environments where it is possible for moisture or moist
air to enter the enclosure through the electrical conduit, the conduit opening should be
sealed with a duct seal compound or putty appropriate for the purpose.
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