Terminal configuration, Terminal wiring – APC AXFA11G User Manual

Page 114

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IM 01E20C01-01E

11-6

11. OUTLINE

OPTIONAL SPECIFICATIONS FOR AXFA11 REMOTE CONVERTER

Item

Specification

Code

Burn Out Down

Lightning Protector

DC Noise Cut Circuit

A lightning protector is built into the power terminals.
In case of power supply code 2 (24 V AC/DC), this optional code is mandatory.

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.

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

µ

S/cm or higher. Nullifies the empty check and electrode adhesion diagnostics 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

Waterproof Glands

Active pulses are output in order to drive an external electromagnetic or electronic counter directly using
the converter’s internal power supply. (Nullfies the standard transistor contact pulse output.)
Output voltage: 24 V DC

±

20%

Pulse specifications:
• The drive current of 30 to 150 mA
• Pulse rate: 0.0001 to 2 pps (pulse/second); Pulse width: 20, 33, 50, or 100 ms

Waterproof glands for G3/4 conduits or flexible tubes are attached to the electrical connections.
Available only for JIS G1/2 electric connections.

Waterproof glands are attached to the electrical connections. Available only for JIS G1/2 electric
connections.

Plastic Glands

Air Purge Fitting

Plastic glands are attached to the electrical connections. Available only for JIS G1/2 electric connections.

Provided with an air purge fitting (1.5 L/min air consumption) with purge air pressure at 0.14 MPa or
less. 1/4 NPT female (when electrical conn. code is 2 or 4) or Rc1/4 (PT 1/4) female (when electrical
conn. code is 0).

Stainless Steel Mounting
Bracket

Provided with a JIS SUS304 (AISI 304 SS/EN 1.4301 equivalent) stainless steel mounting bracket in
lieu of the standard carbon steel bracket.

AM11 Replacement Bracket

Provided with a special mounting bracket for replacing an AM11 converter with an AXFA11.

Calibration Certificate

Level 2: The Declaration and the Calibration Equipment List are issued.

Level 3: The Declaration and the Primary Standard List are issued.

Level 4: The Declaration and the Yokogawa Measuring Instruments Control System are issued.

Epoxy Resin Coating

Epoxy resin coating which has alkali-resistance instead of standard polyurethane resin coating. The
color is same as standard type.

High Anti-corrosion
Coating

Three-layer coating (polyurethane coating on two-layer epoxy resin coating) in the same range as
that for the standard coating. The color is same as standard type. Salt/alkali/acid/weather-

Painting Color Change

Coated in black (Munsell N1.5 or its equivalent.)

Coated in jade green (Munsell 7.5BG4/1.5 or its equivalent.)

Coated in metallic silver.

Stainless Steel Tag Plate

Screwed JIS SUS304 (AISI 304 SS/EN 1.4301 equivalent) stainless steel tag plate. Choose this option
when an SS tag plate is required in addition to the standard nameplate with the tag number inscribed
on it.
Dimension (Height

ϫ

Width): Appr. 12.5 (4.92)

ϫ

40 (15.7) mm (inch)

G3/4 Female
Waterproof Glands

Waterproof glands with union joints are attached to the electrical connections. Available only for JIS
G1/2 electric connections.

Waterproof Glands
with Union Joints

A

ELC

C1

C2

C3

EM

EW

EG

EU

EP

APC

SB

RK

SCT

P1

P2

P7

X1

X2

L2

L3

L4

T05.EPS

Terminal Configuration

I+

I–

CURRENT OUT

AL+

AL–

C

SA

A

B

SB

ALARM OUT

N/–

SHORT BAR

L/+

POWER SUPPLY

EX2

EX1

EXCIT ATION

P–

SI1+

SI2+

COM

P+

PULSE OUT

STATUS IN

SIGNAL

SO1+

COM

SO2+

STATUS OUT

T06.EPS

Terminal Wiring

Terminal Symbols

Description

SIGNAL

CURRENT OUT

Flow signal input

Alarm output

Status output
(Two output)

Status input
(Two input)

Pulse output

Excitation current
output

Power supply

Functional
grounding

Protective grounding
(Outside of the terminal)

Current output
4 to 20mA DC

ALARM OUT

STATUS OUT

Terminal Symbols

Description

STATUS IN

POWER SUPPLY

PULSE OUT

EXCITATION

SO1+
SO2+
COM

C
SA
A
B
SB

AL+
AL-

I+
I-

Sl1+
Sl2+
COM

P+
P-

EX1
EX2

L /+
N/-

T07.EPS

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