Quadbeam MXD73, Installation Manual

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Introduction
MXD73 Installation Guide - 9 -
Introduction
MXD73 Instrument Specification
Input Expansion Slots 3 slots, user configurable with any combination of
available input add-in cards.
Output Expansion Slots 1 slot, user configurable with an additional output
option add-in card.
Ambient Operating Temperature -20°C to +50°C (-4°F to +122°F) for full specification.
Display 3 ¾” QVGA back lit LCD module.
Buttons 5 tactile feedback, micro-switched, silicone rubber.
Alarm LED’s 2 Yellow LED’s located above the main display area
for instrument’s alarm status, lit = active.
Digital Inputs 8 contact closures for remote activation of user
defined operations. Can be configured to operate in
either normally open or normally closed modes.
Current Output Options 1 as standard, expandable up to a total of 4 or 6
depending on the number of relays.
Current Output Specification Each selectable 0-20mA or 4-20mA into 750 ohms
max, fully isolated to 2kV. Expandable up to 5% of
any operating range and offset anywhere in that
range.
Current Output Adjustment ±0.01mA, 3 point 0/4-20 mA for remote monitor
calibration.
Setpoints and Control Relays
Options 2 change over relays as standard, expandable up to
a total of either 4 change over relays, or 4 change
over 2 normally open relays depending on
the number of current outputs.
Setpoints and Control Relays
Specification Fully configurable setpoints with volt free contacts
for each relay. Rated at 5A @ 30V DC / 5A @ 250V AC.
Setpoint LED’s 6 Red LED’s located above main display area for
setpoint status indication, lit = relay energised.