Optional specifications for flowtubes – Yokogawa ADMAG AXF User Manual

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IM 01E20D01-01E

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6. OUTLINE

■ OPTIONAL SPECIFICATIONS FOR FLOWTUBES

᭹ Table of Optional Specifications (Size 2.5 mm (0.1 in.) to 400 mm (16 in.)) “᭛”

T26-1.EPS

Code

Submersible

Sanitary

Applicable Model

Remote

Flowtube

Integral

Flowmeter

Remote

Flowtube

Remote

Flowtube

Integral

Flowmeter

Remote

Flowtube

Integral

Flowmeter

General

Item

Specifications

For District

Heating and

Cooling or

Condensation-proof

Urethane resin potting is applied in the terminal box of a remote flowtube.

Select JIS G1/2 for the electrical connections. 30-meter signal and excitation

cables are pre-wired and waterproof grands with union joints are attached at

factory.

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DHC

User-specified

Signal and Excitation

Cable Length

Burn Out Down

Lightning Protector

DC Noise Cut Circuit

A lightning protector is built into the power terminals.

The output level is set to 0 mA during a CPU failure and is set 2.4 mA (-10 %)

or less during an alarm. Standard products are delivered with a setting 25 mA

during a CPU failure and 21.6 mA (110%) or more during an alarm.

Available for the submersible type and a model with optional code DHC. The

cable length is limited up to 200 meters when combined with an AXFA11

converter, or 100 meters when combined with an AXFA14 converter.

Following “L,” specify the cable length in three digits as a multiple of 1 meter

(e.g., 001, 002, or 005) for a length up to 5 meters or as a multiple of 5

meters (i.e., 005, 010, 015, or the like) for a length of 5 meters or more. If this

optional code is not selected, a 30-meter length cable is attached.

The DC Noise Cut Circuit is built in. Available for 15 mm (0.5 in.) and larger

sizes, and for fluids with the conductivity of 50

µS/cm or higher. Nullifies the

empty check and electrode adhesion diagnostic function.

NAMUR NE43

Compliance

Output signal

limits: 3.8 to

20.5 mA

Failure alarm down-scale: The output level is set to 0 mA during a

CPU failure and is set 2.4 mA (–10%) or less during an alarm.

Failure alarm up-scale: The output level is set to 25 mA during a

CPU failure and is set 21.6 mA (110%) or more during an alarm.

Active Pulse Output

Mass Unit Setting

Active pulses are output in order to drive an external electromagnetic or

electronic counter directly using the converter’s internal power supply.

(Nullifies the standard transistor contact pulse output.)

Output voltage: 24 V DC

±20%

Pulse specifications:

• The drive current of 150 mA or less

• Pulse rate: 0.0001 to 2 pps (pulse/second); Pulse width: 20, 33, 50, or

100 ms

The flow rate span, transmission pulse weight, and totalizer display pulse

weight can be set in terms of mass unit. Specify the density of the process

fluid when ordering in addition to the mass flow rate span, transmission pulse

wight (for mass unit), and totalizer display pulse weight (for mass unit).

When ordering a remote flowtube, parameters for 'Mass Unit Setting' will be

set in the corresponding converter before shipment.

1. Density

a. Available density Numerics:

Specify the numeric within the value of 500 to 2000 kg/m

, 4.2 to

16.7 lb/gal, or 31.2 to 124.8 lb/cf. And it can be up to five digits, to a

maximum of 32000 ignoring the decimal point. A fraction is limited to

the fourth decimal place.

b. Available density units: kg/m

, lb/gal, lb/cf

Example: A water density is about 1000kg/m

. In this case specify

“1000kg/m

”.

However a density is changed by temperature.

Specify the actual density.

(The 1000kg/m

is equivalent to 8.345lb/gal and 62.43lb/cf.)

2. The mass flow rate span, transmission pulse weight, and totalizer display

pulse weight

a. Available density Numerics:

Specify the numeric within the value of 0.0001 to 32000. And it can

be up to five digits, to a maximum of 32000 ignoring the decimal

point. A fraction is limited to the fourth decimal place.

b. Mass Units Available mass units: t, kg, g, klb, lb

Available time units: /d, /h, /min, /s

Note1: In case of specifying the mass flow span, calculate the volumetric flow

span by the setting density, and specify the available value in the mass

flow span.

Note2: In case of transmission pulse weight and totalizer display pulse weight,

specify the mass unit which was specified as the flow unit.

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ELC

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᭺: Available

–: Not available

Explosion proof

AXF***G-

AXF***C-

AXF***W

AXF***H-