APC AXFA11G Outline, Standard Specifications, Excitation Method Combined with AXF Remote Flowtube

11. OUTLINE

11. OUTLINE

■STANDARD SPECIFICATIONS

Excitation Method: (Combined with AXF Remote Flowtube)

•Standard dual frequency excitation: Size 2.5 to 400 mm (0.1 to 16 in.)

•Enhanced dual frequency excitation: Size 25 to 200 mm (1.0 to 8.0 in.) (Optional code HF1 or HF2)

•Pulsed DC excitation:

Size 500 to 2600 mm (20 to 104 in.)

Input Signal:

Two Status Inputs: Dry contact

Load resistance: 200  or less (ON), 100 kΩ or more (OFF)

Output Signals:

•One Current Output: 4 to 20 mA DC (load resistance: 1kΩ maximum, including cable resistance)

•One Pulse Output:

Transistor contact output (open collector) Contact capacity: 30 V DC (OFF), 200 mA (ON) Output rate: 0.0001 to 10,000 pps (pulse/second)

•One Alarm Output:

Transistor contact output (open collector) Contact capacity: 30 V DC (OFF), 200 mA (ON)

•Two Status Outputs:

Transistor contact output (open collector) Contact capacity: 30 V DC (OFF), 200 mA (ON)

Communication Signals:

BRAIN or HART communication signal (Superimposed on the 4 to 20 mA DC signal)

Distance from Power Line: 15 cm (6 in.) or more (Parallel wiring should be avoided.)

BRAIN:

Communication Distance:

Up to 2 km (1.25 miles), when polyethylene insulated PVC-sheathed cables (CEV cables) are used. Communication distance varies depending on the type of cable and wiring used.

Load Resistance:

250 to 600 Ω (including cable resistance)

Load Capacitance: 0.22 ∝F or less

Load Inductance: 3.3 mH or less

Input Impedance of Communicating Device: 10 kΩ or more (at 24 kHz)

HART:

Communication Distance:

Up to 1.5 km (0.9 mile), when using multiple twisted pair cables. Communication distance varies depending on the type of cable used.

Load Resistance:

230 to 600 Ω (including cable resistance)

Cable Length for Specific Applications:

Use the following formula to determine the cable length for specific applications:

L	65106	(Cf 10,000)
	(RC)	C

where:

L = length in meters or feet

R= resistance in Ω (including barrier resistance) C = cable capacitance in pF/m or pF/ft

Cf = maximum shunt capacitance of receiving devices in pF/m or pF/ft

Note: HART is a registered trademark of the HART

Communication Foundation.

Data Security During Power Failure:

Data (parameters, totalizer value, etc.) storage by EEPROM. No back-up battery required.

Indicator:

Full dot-matrix LCD (32132 pixels)

Lightning Protector:

The lightning protector is built into the excitation current output, the current output, the signal common, and the pulse/alarm/status input and output terminals. When optional code A is selected, the lightning protector is built into the power terminals.

Protection:

IP66, IP67, JIS C0920 immersion-proof type

Coating:

Case and Cover: Polyurethane corrosion-resistant Coating Color: Silver gray (Munsell 3.2PB 7.4/1.2 or its

equivalent)

Cover Mounting Screws: Polyurethane corrosion-resistant Coating Color: Mint green (Munsell 5.6BG 3.3/2.9 or its

equivalent)

Converter Material:

Case and Cover: Aluminum alloy

Mounting/Shapes:

•Mounting: 2-inch pipe, panel or surface mounting

•Electrical Connection: ANSI 1/2 NPT female ISO M20 1.5 female JIS G1/2 (PF1/2) female

•Terminal Connection: M4 size screw terminal

Grounding:

Grounding resistance 100 Ω or less

When optional code A is selected, grounding resistance 10 Ω or less shall be applied.

Combined Remote Flowtube:

•AXFA11 Converter can be combined with size 2.5 to 2600 mm (0.1 to 104 in.) of AXF Remote Flowtube.

However, the AXFA11 converter cannot combine with AXF Remote Flowtube of TIIS flame proof type (In this case, use the AXFA14 converter).

•If a combined converter is changed from AXFA11 to AXFA14 or vice versa, a new meter factor must be adjusted by flow calibrations.

11-1 IM 01E20C01-01E