FC Flow Computer
3
1.2 Specifications:
Environmental
Operating Temperature: 0 to +50 C
Storage Temperature: -40 to +85 C
Humidity : 0-95% Non-condensing
Materials: UL, CSA, VDE approved
Approvals: CE Approved Light Industrial, UL/CSA Pending
Display
Type: 2 lines of 20 characters
Types: Backlit LCD and VFD ordering options
Character Size: 0.3" nominal
User selectable label descriptors and units of measure
Keypad
Keypad Type: Membrane Keypad
Keypad Rating: Sealed to Nema 4
Number of keys: 16
Raised Key Embossing
Enclosure
Enclosure Options: Panel, Wall, Explosion Proof
Size: See Chapter 2; Installation
Depth behind panel: 6.5" including mating connector
Type: DIN
Materials: Plastic, UL94V-0, Flame retardant
Bezel: Textured per matt finish
Equipment Labels: Model, safety, and user wiring
NX-19 Compressibility Calculations
Temperature
-40 to 240 F
Pressure
0 to 5000 psi
Specific Gravity
0.554 to 1.0
Mole % CO2
0 to 15%
Mole % Nitrogen
0 to 15%
Power Input
The factory equipped power options are internally fused.
An internal line to line filter capacitor is provided for added
transient suppression. MOV protection for surge transient is
also supported
Universal AC Power Option:
85 to 276 Vrms, 50/60 Hz
Fuse: Time Delay Fuse, 250V, 500mA
DC Power Option:
24 VDC (16 to 48 VDC)
Fuse: Time Delay Fuse, 250V, 1.5A
Transient Suppression: 1000 V
Flow Inputs:
Flowmeter Types Supported:
Linear:
Vortex, Turbine, Positive Displacement, Magnetic,
GilFlo, GilFlo 16 point, ILVA 16 Point, Mass Flow
and others
Square Law:
Orifice, Venturi, Nozzle, V-Cone, Wedge, Averaging
Pitot, Target, Verabar,
Accelabar
and others
Multi-Point Linearization:
May be used with all flowmeter types. Including: 16
point, UVC and dynamic compensation.
Analog Input:
Ranges
Voltage: 0-10 VDC, 0-5 VDC, 1-5 VDC
Current: 4-20 mA, 0-20 mA
Basic Measurement Resolution: 16 bit
Update Rate: 2 updates/sec minimum
Accuracy: 0.02% FS
Automatic Fault detection: Signal over/under-range,
Current Loop Broken
Calibration: Operator assisted learn mode. Learns Zero
and Full Scale of each range
Fault Protection:
Fast Transient: 1000 V Protection (capacitive clamp)
Reverse Polarity: No ill effects
Over-Voltage Limit:
5 0 VDC Ove r vol tag e
protection
Over-Current Protection: Internally current limited
protected to 24 VDC
Optional: Stacked DP transmitter 0-20 mA or 4-20 mA
Pulse Inputs:
Number of Flow Inputs: one
Input Impedance: 10 k
Ω
nominal
Trigger Level: (menu selectable)
High Level Input
Logic On: 2 to 30 VDC
Logic Off: 0 to .9 VDC
Low Level Input (mag pickup)
Selectable sensitivity: 10 mV and 100 mV
Minimum Count Speed: 0.25 Hz
Maximum Count Speed: Selectable: 0 to 40 kHz
Overvoltage Protection: 50 VDC
Fast Transient: Protected to 1000 VDC (capacitive clamp)
Temperature, Pressure, Density Inputs
The compensation inputs usage are menu selectable for
temperature, temperature 2, pressure, density, steam trap
monitor or not used.
Calibration: Operator assisted learn mode
Operation: Ratiometric
Accuracy: 0.02% FS
Thermal Drift: Less than 100 ppm/C
Basic Measurement Resolution: 16 bit
Update Rate: 2 updates/sec minimum
Automatic Fault detection:
Signal Over-range/under-range
Current Loop Broken
RTD short
RTD open
Transient Protection: 1000 V (capacitive clamp)
Reverse Polarity: No ill effects
Over-Voltage Limit (Voltage Input): 50 VDC
Over-Current Limit (Internally limited to protect input to
24 VDC)
Available Input Ranges
(Temperature / Pressure / Density / Trap Monitor)
Current: 4-20 mA, 0-20 mA
Resistance: 100 Ohms DIN RTD
100 Ohm DIN RTD (DIN 43-760, BS 1904):
Three Wire Lead Compensation
Internal RTD linearization learns ice point resistance
1 mA Excitation current with reverse polarity protection
Temperature Resolution: 0.1°C
Temperature Accuracy: 0.5°C
Summary of Contents for FC
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