West Control Solutions MRC 9000 - Manual (Page 16)

Section 1 1-10 Edition 3
Rev G
OTHER INPUT SPECIFICATIONS
Processing Square root and exponential functions for linear inputs
Value Cutoff None, at value, to zero below value, to zero near zero
Sensor Fault Detection Sensor break on all TCs, RTDs, 1 volt, 1 to 5 volt, 4-20mA, and millivolt inputs
Sensor high and low on all inputs, 5% above or below range
Sensor Break Upscale or downscale
Transmitter Power Supplies Up to four isolated 25mA @ 24VDC supplies available
RECORDING
Pen Type Disposable 4 pen fiber tip marker assembly
Pen Colors Red, green, blue, and black
Chart Size 10", 11", 12" (12" are 11.875" actual size)
Chart Drive DC stepper motor
Chart Rotation 6 to 9999 hours per revolution
Recorded Values Any of over 20 values can be trended/recorded
Recording Methods Drag pen simulation, instantaneous value, connect the values, average value,
connect the averages
Action on New Chart Print scales, print range list, begin normal recording
Chart Messages Twelve
RECORDING PERFORMANCE
Chart Recording Accuracy 0.3% of chart span reference accuracy
Chart Rotation Accuracy
±
0.2 minutes for a 24 hour rotation, assuming all backlash removed
OPERATOR INTERFACE
Display Two line, 40 character vacuum fluorescent display with .21 inch (5 mm)
high characters
Status Indicators Eight user configurable, red LED status indicators
Keypad Fifteen keys for programming and unit operation
Display Formats Three, refer to manual
Display Modes Automatic or manual sequencing
Operator Messages Twelve
Operator Inputs Twelve
ALARMS
Number Up to four alarms for each of four process variables
Type Process high or low, rate rising or falling
Hysteresis Fully adjustable
ON/OFF OUTPUTS
On/Off Output Actuators Any of over 100 digital values/states can be used to actuate on/off outputs
(e.g. alarms, time/dates, timers, etc.)
Relays SPDT, contacts rated 5 amps resistive at 115 VAC,
2.5 amps resistive at 230 VAC - 1/8 HP at 230 VAC (single phase), 250 VA at 115/230 VAC.
Solid State Relay Driver Open collector output, can provide 40mA at 3 VDC or 20mA at 4VDC
Short circuit current is limited to 100 mA
Pulsed Outputs 50ms pulse when used with totalizer pulsed outputs