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BACKLIGHTED WEIGHT UNITS INDICATOR
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PROGRAMMABLE AUTO-ZERO TRACKING
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TARE AND ZERO FUNCTIONS
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MAX AND MIN READING MEMORY
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PROGRAMMABLE INPUT AND OUTPUT RESPONSE TIMES
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INTEGRATOR/TOTALIZER
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THREE PROGRAMMABLE DIGITAL CONTROL INPUTS
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FOUR SETPOINT ALARM OUTPUTS (W/Plug-in card)
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COMMUNICATION AND BUS CAPABILITIES (W/Plug-in card)
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ANALOG OUTPUT SIGNAL (W/Plug-in card)
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PC SOFTWARE AVAILABLE FOR INDICATOR
CONFIGURATION
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NEMA 4X/IP65 SEALED FRONT BEZEL
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UNIVERSAL AC OR 24 V SUPPLY OPTION
GENERAL DESCRIPTION
The MP30 is a high accuracy yet compact digital indicator suitable for simple
weighing and control applications. The 5 digit readout employs advanced
technology for stable, drift free readout while incorporating features that
provide application flexibility now and in the future with field plug-in option
cards. Option cards enhance the indicator functions, affording Alarm outputs,
Linear DC signal output and two-way Serial Communications.
The weight Indicator has two bipolar input ranges: ±24 mV and ±240 mV.
The built-in bridge excitation is of low-drift design and is selectable for 5 VDC
or 10 VDC output. The indicator can drive 4, 350 ohm load cells. Calibrating
the indicator is easy due to the choice of scaling procedures: Either 1) Apply
calibration weights to the weighing system or 2) Directly key-in data based
upon known load cell calibration data.
The indicator has a simple five button keypad. The key functions are: Weight
display select, Parameter Access, Tare In/Out, Acquire Zero, and Print Ticket.
Additionally, three of these keys can be programmed for different functionality.
The indicator provides readout selections of Brutto/Gross Weight, the Net
weight and the Tare Weight. The Tare Weight can be acquired automatically by
a single key-press or via a keypad direct entry.
The indicator also has a means of recording the Max and Min reading, as well
as having a Totalizer feature. The totalizer provides either a free running
accumulation of total mass flow; or keeps account of total batch weight when
adding individual ingredients.
The indicator has four setpoint outputs, implemented on Plug-in cards. The
Plug-in cards provide dual FORM-C relays (5 A), quad FORM-A relays (3 A)
or either sinking or sourcing quad open collector logic outputs. The setpoint
alarms can be configured in modes to suit a variety of control and alarm
requirements.
- High and low absolute, high and low deviation and band acting
- Balanced or unbalanced hysteresis
- On and off delay timers
- Auto reset or latching modes
- Reverse phase output and/or panel indicator
- Selection of alternate list of setpoint values
- Tracks gross or net weight
Plug-in cards also facilitate bus communications. These include RS232,
RS485 and DeviceNet. Readout values and setpoint alarm values can be
controlled through the bus. Additionally, the indicator has features that allow a
remote computer to directly control the outputs of the indicator. This is useful
during commissioning phases and diagnostic use. With a communication card
installed, set-up software allows configuration from a PC. The configuration
data can be saved to a file for later recall.
A linear DC output signal is available as a Plug-in card. The card provides
either 20 mA or 10 V signals. The output can be scaled independent of the input
range. The output can be used as a control or signal retransmission.
The features of the linear output card are:
- Output tracks either gross or net weight
- Programmable output update times
Once the indicator has been initially configured, the parameter list may be
locked out from further modification in its entirety or only the setpoint values
can be made accessible.
The indicator has been specifically designed for harsh industrial environments.
With NEMA 4X/IP65 sealed bezel and extensive testing of noise effects to CE
requirements, the indicator provides a tough and reliable local readout.
MODEL MP30 - 1/8 DIN DIGITAL WEIGHT INDICATOR
CAUTION: Read complete
instructions prior to installation
and operation of the unit.
CAUTION: Risk of electric shock.
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DIRECT INTERFACE TO LOAD CELLS (4 X 350 OHM)
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FAST 20 READINGS/SEC UPDATE RATE
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DUAL RANGE INPUT: ±24 mV OR ±240 mV
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SELECTABLE 5 VDC OR 10 VDC BRIDGE EXCITATION
DIMENSIONS In inches (mm)
Note: Recommended minimum clearance (behind the panel) for
mounting clip installation is 2.1" (53.4) H x 5.0" (127) W.
Bulletin No. MP30-C
Drawing No. LP0480
Released 11/05
