West Control Solutions MRC 9000 - Manual (Page 17)

Section 1 1-11 Edition 3
Rev G
CURRENT OUTPUTS
Drivers Any of over 20 values can be used to drive analog outputs (e.g. inputs, derived
variables, etc.)
Output Span 0 to 20mA or 4 to 20mA, nominal
Resolution 12 bits based on a 0 to 25.6mA span
Accuracy
±
0.1% of 20mA span reference accuracy
Compliance 650 ohm load
TOTALIZERS
Number Four are included in the option
Digits Nine, displayable with and without commas
Types Continuous, preload count down, and pulse counting
Presets One per totalizer
Pulsed Outputs Fully configurable
COMPUTING CAPABILITIES
Derived Variables Twelve
Math functions Add, subtract, multiply, divide, average, exponential, log 10, log e, power 10, power e
Built-In Equations Linear, polynomial, C to F, F to C, linear mass flow, DP mass flow, BTU, RH, Fo, ZrO
2
.
Other Functions High select, low select, high peak, low peak, track and hold, 1 of 2 selector,
convert actuator
Custom Curves Four 21 point curves, usable in multiple calculations
RH Calculation Typically accurate to better than 1%
Clamps calculated value @ -10% and +110%
LOGIC CAPABILITIES
Actuators Over 100 digital values are accessible
Derived Actuators Twenty four combinations of 24 items
Logic Operators NOT, OR, AND, parentheses
Timers Four
Time/Date Combination Actuators Six
POWER REQUIREMENTS
Line Voltage Universal power supply, 85 min to 265 max. VAC 50/60Hz
Power Consumption 60 VA maximum
CONSTRUCTION
Enclosure Gasketed cover, case, and windows. Structural foam case and cover with
plastic or glass window areas. Door lock available.
NEMA Rating NEMA 3 standard, NEMA 4X optional
Conduit Openings Four openings standard, 2 additional as required
Mounting Panel, wall, or optional pipe mounting
Overall Dimensions 14.12 inches wide x 16.77 inches high x 7.75 inches deep
(358.65mm wide x 425.96mm high x 196.85mm deep)
(CONTINUED ON NEXT PAGE)