COX PRODUCT LINE – PRECISION INSTRUMENTS
Flowmeters
Series AN, Precision Turbine Flowmeter
Description:
COX Series AN Precision Turbine Flowmeters have diverse applications in the areas of testing and control.
These meters employ durable ceramic bearings, which are compatible in most fluids including cryogenic fluids.
Six vane supports contribute to exceptional repeatability and linearity. COX Instruments' superior performance
is credited to the axial helical rotor design, which enhances linearity, repeatability and speed-of-response,
and reduces pressure drop. Series AN meters are calibrated on primary standards having an uncertainty of ±0.05% of reading.
Specifications:
- Reproducibility (% of reading): ±0.25%
- Repeatability (% of reading): ±0.02%
- Trimmed Linearity (% of reading): ±0.05%
- With Electronic Linearizer (% of reading): ±0.1%
- Frequency Output (Max.): 1200 to 1500 Hz Standard (2400 Hz Optional)
- Output Signal (Min.): 10 mv
- Response Time: 2-3 mS or better
Series 42, Precision Gas Turbine Flowmeter
Description:
COX Series 42 Precision Gas Turbine Flowmeters are designed for accurate flow rate measurement of all
compressible fluids with a minimum pressure loss. Series 42 meters have a guaranteed standard accuracy of
±1.0% of reading. Accuracies of ±0.5% are available depending on fluid conditions. The series comprises
three basic designs for low, medium, and high-density gases. This permits accurate flow measurement under
operating densities from 0.01 to 15 lbs/cu. ft. (at flow ranges from 0.4 to 400 acfm).
Specifications:
- Accuracy (% of reading): ±1.0%
- Repeatability (% of reading): ±0.25%
- Frequency Output (Max.): 1500 to 1800 Hz
- Pressure Rating: 6000 psi (at 75°F)
- Output Signal (Min.): 10 mv
- Response Time: 20-30 mS or better
Series 42 NPT, Precision NPT Turbine Flowmeter
Description:
COX Series 42 NPT Precision Turbine Flowmeters have the same quality that
has been the benchmark for all COX turbine meter designs. With National Pipe
Thread (NPT) end connections on this flow meter, users can perform precise fluid
flow measurement (either liquids or gases) in a variety of industrial applications.
All calibration variations available with standard COX AN and ANC
Series meters are available with the NPT Series.
Specifications:
Same as Series AN/ANC for liquid and Series 42 for gas.
Series 42 FLNG, Precision Flange Turbine Flowmeter
Description:
COX Series 42 FLNG Precision Flange Turbine Flowmeters are identical to the COX AN Series, except
for a few minor variations in size, end connections, and construction (to permit use in industrial
applications). This series incorporates flanged end connections with ball bearings.
Series 42 FLNG meters find wide usage in the automotive, petroleum and aerospace markets.
Specifications:
- Accuracy (% of reading): ±0.25%
- Repeatability (% of reading): ±0.02%
- Frequency Output (Max.): 1200 to 1500 Hz Standard (2400 Hz Optional)
- Pressure Rating: 150–600# ANSI Class Rating
- Output Signal (Min.): 10 mv
- Response Time: 2-3 mS or better
Series 42 HP, Precision High Pressure Turbine Flowmeter
Description:
COX Series 42 HP Precision High Pressure Turbine Flowmeters have exceptionally broad applications
in the areas of testing and control. MS33514 fittings and a wide range of sizes meet the requirements
of most high-pressure applications. With standard K factor (10:1 flow ratio) calibration, the meter's
frequency output is linear to within ±0.5% over the entire flow range with liquids up to 1.26 centistokes viscosity.
Specifications:
- Pressure Rating:
- Continuous: 5000 psig
- Proof: 7500 psig
- Burst: 25,000+ psig
- Accuracy (% of reading): ±0.25%
- Frequency Output (Max.):1200 to 1500 Hz
- Output Signal (Min.): 10 mv
- Response Time: 2-3 mS or better
Series 42 LF, Precision Low Flow Turbine Flowmeter
Description:
COX Series 42 LF Precision Low Flow Turbine Flowmeters are widely used for flow measurements
in attitude and position control for rocket engines and other applications. Built for
compatibility with exotic fuels and oxidizers, such as N204, UDMH, MMH, hydrazine, Freon, etc.,
the Series 42 LF meters are nonlinear, but are repeatable to ±0.25% of
reading, allowing an overall accuracy of ±0.5%.
Specifications:
- Accuracy (% of reading): ±0.50%
- Repeatability (% of reading): ±0.25%
- Frequency Output (Max.): 1500 to 1800 Hz
- Pressure Rating (at 75°F): 6000 psi
- Output Signal (Min.): 10 mv
- Response Time: 20-30 mS or better
Series 44 M, Turbine Flowmeter Manifold System
Description:
COX Series 44 M, Turbine Flowmeter Manifold Systems are designed for applications where extremely
wide rangeability, automatic operation, and high accuracy are required, such as in jet engine cells,
fuel control stands and flow meter calibrating devices. With the Series 44 M, flow ranges of 100:1,
1000:1 or higher are available for high-pressure systems. The system consists of a stainless steel
manifold with flow straightening sections, two or three turbine flow meters and one (or two in a
three-element system) air-operated electrically controlled shutoff valve. Operation of the manifold
system is automatic and fail-safe as normally open valves are used.
Specifications:
- Accuracy: ±0.5% of flow rate (±0.6% for Size 6 flow meters)
- Pressure Range: Size 6-12, 3000 psi; Size 16, 2500 psi; Size 20-32, 2000 psi
- Valves: Air-operated, electrically-actuated, cast iron body
- Solenoid Valve: Class 1, Group D Explosion-proof rating
- Air Supply: 80 psi
- End Connectors: 37° flared (female)
Electronics
Series FC30 Flow Computer, Panel Mount
Description:
COX FC30 Flow Computer services both liquid and gas applications. The FC30 has features such as: batching, 40-point flow meter linearization tables, temperature viscosity correction, using Strouhal/Roshko advanced linearization methods and multiple flow and control inputs. Relay outputs are independently
assignable for alarms and general purpose warnings. The FC30 has serial communications, both RS232 and 485, and isolated analog and pulse outputs.
Specifications:
- Input Power: 110/220 VAC 50/60 Hz, 12/24 VDC, 300 mA max
- Operating Temperature: 32 to 122°F (0 to 50°C)
- Accuracy: 0.01% FS at 20°C
- Resolution: 16 bit
- Update Rate: 1 update/sec min
- Linearization: 40 point table, UVC table or Strouhal/Roshko computations
- Temperature Input: 100 ohm RTD, resolution 0.01°C
- Serial Communication: RS- or RS-485 (printing, data recording and communications with a computer )
- Flow Inputs: Pulse, single rotor, dual rotor, single rotor with dual pickups or quadrature
- Control Inputs: Menu selectable for Start, Stop, Reset, Lock, Inhibit, Alarm Acknowledge, Print or Not Used
- Relay Outputs: Menu assignable - Low Rate Alarm, Hi Rate Alarm, Prewarn Alarm, Preset Alarm or General Purpose Warning
Series 92 CAR, Carrier Pickoff/Amplifier
Description:
COX Series 92 CAR, Carrier Pickoffs/Amplifiers extend the usable range of the flow meter
by eliminating magnetic drag on the rotor. This enhances not only the range, but also the
linearity at low flow. The modulated carrier frequency is amplified and conditioned to provide
a 
square wave pulse output capable of transmitting up to 100 ft. COX offers both
pickoff and modular versions in an explosion-proof housing.
Specifications:
- Input Voltage: Min 12.0 VDC; Max 28.0 VDC
- Input Current Standard: 15 mA
- Output Voltage: 10 Vp-p
- Temperature Range: -20°F to 160°F
Series 92 MAG, Magnetic Pickoff/Amplifier
Description:
COX Series 92 MAG, Magnetic Pickoffs/Amplifiers are ideal for remote locations using a battery indicator.
These preamplifiers are designed to convert low-level signals into a stable square wave pulse, which can be
transmitted up to 100 ft. COX offers both pickoff and modular 
versions in an explosion-proof housing.
Specifications:
- Input Voltage: 5.0 to 28 VDC
- Input Current: 15 mA
- Output Voltage: 10 V p-p
- Temperature Range: -20° to 160°F
- Response Time: Full scale change to 95% of final value 180 mS
See complete specs in data bulletin.
Series 92 DA, Digital-to-Analog Converter
Description:
COX Series 92 DA, Digital-to-Analog Converters take the digital output of a pickoff and convert
is to an analog signal output. The converter has a non-interacting zero and span adjustment to scale
the output to match the operating flow range. Several configurable options allow for either magnetic
or RF carrier input along with selectable outputs for 5 and 10 VDC, and for 20 and 50 mA.
The converter fits into a "Y3" explosion proof enclosure.
Specifications:
- Supply Voltage: 11.0 to 30 VDC
- Current (max.): 25 mA
- Response time: Full scale change to 95% of final value 180 mS
See complete specs in data bulletin.
Series 104-922, A/B Remote Signal Conditioner Box
Description:
COX Series 104-922, A/B Signal Conditioners are remote, wall-mounted enclosures, which can be
placed up to 50' from the flow meter pickoff. The conditioner performs the same function as the Series
92 Carrier and 92 Magnetic pickoff amplifier with the exception of it being powered by 110 or 230 VAC power.
Specifications:
- A Version: RF Carrier Amplifier
- B Version: Magnetic Amplifier
- Input Voltage: 110 or 230 VAC
- Output Voltage: 10 Vp-p
Series 106-255, Modulated Carrier Signal Conditioner
Description:
COX Series 106-255, Modulated Carrier Signal Conditioners are designed to plug directly
into the pickoff connector pins. The RF carrier amplifier extends the usable range of the
flow meter by eliminating magnetic drag on the rotor. It can be configured into a 2- or 3-wire
configuration. The Series 106-255 is mounted in an explosion-proof housing.
Specifications:
- 2-Wire Connection:
- Power: 12-28 VDC
- 5-volt nominal with 24-volt, 250-ohm load resistor
- Output Impedance: 400 ohms nominal
- 3-Wire Connection:
- Power: 12-28 VDC
- Output: Open collector may be returned to any logic supply from 5-30 VDC through an external load resistor.
- Maximum current through the load resistor is 40mA
- Output voltage is greater than logic supply minus 1.5 VDC
- Output Impedance: Z-RL
Series 4010/4020 FC, Flow Computer
Description:
COX Series 4010/4020 FC, Flow Computers are panel-mount flow computers with a six-digit rate and
total display. The unit stores and linearizes flow meter calibration data, making it an ideal solution
for nonlinear LO FLO meters and extended range requirements. The flow computer stores up to 40
calibration data points with front panel entry or using COX QuickLoad Software.
The Series 4020 is the same as the Model 4010, but has the added feature for an RTD temperature probe. This provides fluid temperature compensation and Universal Viscosity Curve (UVC) capability, improving accuracy over varying temperature ranges.
Both units are housed in a NEMA 4 front bezel panel-mount configuration with keyboard entry. The flow computer features selectable engineering units, 485 programming port and data acquisition system interface.
Specifications:
- Operating Temperature: 32 to 131°F (0 to 55°C)
- Power: 100, 110, 220 or 240 VAC (50/60 Hz)
- RTD Input: 100Ω Platinum Lead Wire Compensation, 3 or 4 Wire
- Flow inputs: 0-24 VDC, sink only
- Relay Outputs: Dry contact, Form C
- Transistor Outputs: NPN, 150 mA, Max 30 VDC
- Auxiliary Power: 24 VDC regulated and filtered, 0-100 mA
See data bulletin for complete specification.
Series 4050, Multi Input Linear Flow Computer
Description:
COX Series 4050, Multi Input Linear Flow Computers monitor up to three independent flow sensors,
and provide automatic switching for manifold applications. Users can select mass or flow rate display
via a unique, hand-held remote or front panel keypad. The flow computer provides temperature
compensation with RTD input and offers an RS485 communications port for PC interface.
It includes user-friendly data entry and set-up. Also allows programming or
reprogramming calibration data and set-up via the RS485 interface.
Specifications:
- Maximum of three voltage pulse frequency inputs
- Frequency Range: 0.5 Hz to 20 kHz
- Programmable frequency and flow rate cutoffs
- Regulated Output: 24 VDC
- Dimensions:
- Panel-mounted steel double DIN enclosure, 192 mm wide × 96 mm high × 210 mm deep (7.56 in. wide × 3.78 in. high × 8.27 in deep).
- Panel cut-out size 186 mm wide × 92 mm high (7.32 in. wide × 3.62 in. high) (+1.0 mm/-0.0 mm)
- Power Requirements: 220 to 240 VAC, 50/60 Hz; or 110 to 120 VAC, 50/60 Hz
Series 4080 FlowComp, Flowmeter Interface
Description:
COX Series 4080 Flow Comp, Flowmeter Interface provides total flow compensation to enhance
flow meter accuracy, while extending the linear flow range. The Series 4080 tracks all variables
to compensate for viscous and inertial effects due to fluid temperature and pressure variations.
Enhanced DSP technology allows exceptional signal characterization and fast response to output
dynamic data in engineering units. Meeting the demanding requirements of the aerospace,
automotive and test and measurement industries, the Series 4080 provides significant
improvements in flow meter accuracy under extreme temperature conditions.
Specifications:
- Input Power: 24 VDC nominal, 1.2 W max.; 9-32 VDC (digital output only); 15-32 VDC (for analog outputs 5V, 10V & 4-20 mA)
- Flowmeter Input Type (3 Channels: A, B & Quad): pulse TTL compatible; frequency range: 1 Hz to 3 kHz; RF 10 Ohm Carrier; frequency range: 5 Hz to 3 kHz; oscillator frequency: 55-65 kHz
- Temperature Input Type: thermistor 10k Ohm; RTD 100 Ohm platinum; current: 4-20 mA; voltage: 0-10 or 0-5 VDC
- Linearization: flow meter K-factor, number of points: 2-200, interpolation method: linear, correlation: Strouhal - Roshko (per ARP4990 publication); temperature: number of points: 2-50, interpolation method: linear; viscosity: number of points: 2-100, interpolation method: linear, correlation: ASTM D341-93, Andrades Equation or user-defined; density: number of points: 2-50, interpolation method: linear