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Yokogawa Pressure Transmitter EJA120A-EES4A-97NA[Product print page]

Product Name: Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Product Type: EJA120A-EES4A-97NA

Exhibitors: Yokogawa

Product Documentation: No Related Documents

Brief

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA 4 to 20 mA DC signal corresponding to the measured differential pressure Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Detailed description

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Overview

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

The high performance draft range differential pressure transmitter model EJA120A-EES4A-97NA outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure. Model EJA120A-EES4A-97NA also features remote setup and monitoring through communications with the BRAIN™ terminal and CENTUM CS™ or μXL™ or HART® 275 host.

STANDARD SPECIFICATIONS

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Refer to GS 01C22T02-00E for FOUNDATION Fieldbus communication type and GS 01C22T03-00E for
PROFIBUS PA communication type marked with “<.”

PERFORMANCE SPECIFICATIONS

Zero-based calibrated span, linear output, wetted parts material code ‘S’ and silicone oil.

Reference Accuracy of Calibrated Span

(including the effects of zero-based linearity, hyster- esis, and repeatability)

2:0.2 % of Span

2:0.1 % of Span when /HAC is specified

For spans below X,

URL
2:[0.15 + 0.02Span ] % of Span
X
T01E.EPS
2:[0.05 + 0.05Span] % of Span, when /HAC is specified
where X equals:
Capsule X kPa {inH O} E 0.4 {1.6}

Square Root Output Accuracy

The square root accuracy is a percent of flow span.

Output	Accuracy
50 % or Greater	same as reference accuracy
50 % to Dropout point	reference accuracyx50
50 % to Dropout point	square root output (%)

FUNCTIONAL SPECIFICATIONS

Span & Range Limits

Measurement

Span and Range

kPa

inH2O(/D1)

mbar(/D3)

mmH2O(/D4)

Span

0.1 to 1

0.4 to 4

1 to 10

10 to 100

Range

-1 to 1

-4 to 4

-10 to 10

-100 to 100

URL is defined as the Upper Range Limit from the

table.

Zero Adjustment Limits

Zero can be fully elevated or suppressed, within the

Lower and Upper Range Limits of the capsule.

External Zero Adjustment “<”

External zero is continuously adjustable with 0.01 % incremental resolution of span. Span may be adjusted locally using the digital indicator with range switch.

Mounting Position Effect

Rotation in diaphragm plane has no effect. Tilting up to 90 0 will cause zero shift up to 0.4 kPa {1.6 inH2O} which can be corrected by the zero adjustment.

Output “<”

Two wire 4 to 20 mA DC output with digital communi- cations, linear or square root programmable. BRAIN or HART FSK protocol are superimposed on the 4 to

20 mA signal.

Failure Alarm

Output status at CPU failure and hardware error;

Up-scale: 110%, 21.6 mA DC or more(standard) Down-scale: -5%, 3.2 mA DC or less

-2.5%, 3.6 mA DC or less (Optional

code /F1)

Note: Applicable for Output signal code D and E

MODEL AND SUFFIX CODES

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Model	Suffix Codes									Description
EJA120A-EES4A-97NA										Differential pressure transmitter (for draft application)
Output Signal	-D . . . . . . . . . . . . . . . . . . -E . . . . . . . . . . . . . . . . . . -F . . . . . . . . . . . . . . . . . . -G . . . . . . . . . . . . . . . . . .									4 to 20 mA DC with digital communication (BRAIN protocol) 4 to 20 mA DC with digital communication (HART protocol, refer to GS 01C22T01-00E) Digital communication (FOUNDATION Fieldbus protocol, refer to GS 01C22T02-00E) Digital communication (PROFIBUS PA protocol, refer to GS 01C22T03-00E)
Measurement span (capsule)		E . . . . . . . . . . . . . . . . .								0.1 to 1 kPa {10 to 100 mmH2O} {0.4 to 4 inH2O} {1 to 10 mbar}
Wetted parts material *6			S# . . . . . . . . . . . . . . .							[Body] [Capsule] [Vent plug] . SCS14A 1 SUS316L 2 SUS316 *7
Process connections 女				0 . . . . . . . . . . . . . 1 . . . . . . . . . . . . . 2 . . . . . . . . . . . . . 3 . . . . . . . . . . . . . 4 . . . . . . . . . . . . . 5 . . . . . . . . . . . . .						without process connector (Rc1/4 female on the cover flanges) with Rc1/4 female process connector with Rc1/2 female process connector with 1/4 NPT female process connector with 1/2 NPT female process connector without process connector (1/4 NPT female on the cover flanges)
Bolts and nuts material 女					A . . . . . . . . . . . . B . . . . . . . . . . . . C . . . . . . . . . . . .					[Maximum working pressure] SCM435 50 kPa {0.5 kgf/cm2} SUS630 50 kPa {0.5 kgf/cm2} SUH660 50 kPa {0.5 kgf/cm2}
Installation 女						-2 . . . . . . . . . . -3 . . . . . . . . . . -6 . . . . . . . . . . -7 . . . . . . . . . . -8 . . . . . . . . . . -9 . . . . . . . . . .				Vertical impulse piping type, right side high pressure, process connector upside 3 Vertical impulse piping type, right side high pressure, process connector downside 3 Vertical impulse piping type, left side high pressure, process connector upside 3 Vertical impulse piping type, left side high pressure, process connector downside 3 Horizontal impulse piping type, right side high pressure 4 Horizontal impulse piping type, left side high pressure 4
Electrical connection 女							0 . . . . . . . . . . 2 . . . . . . . . . . 3 . . . . . . . . . . 4 . . . . . . . . . . 5 . . . . . . . . . . 7 . . . . . . . . . . 8 . . . . . . . . . . 9 . . . . . . . . . . A . . . . . . . . . . C . . . . . . . . . . D . . . . . . . . . .			G1/2 female, one electrical connection 1/2 NPT female, two electrical connections without blind plug Pg 13.5 female, two electrical connections without blind plug M20 female, two electrical connections without blind plug G1/2 female, two electrical connections and a blind plug 1/2 NPT female, two electrical connections and a blind plug Pg 13.5 female, two electrical connections and a blind plug M20 female, two electrical connections and a blind plug G1/2 female, two electrical connections and a SUS316 blind plug 1/2 NPT female, two electrical connections and a SUS316 blind plug M20 female, two electrical connections and a SUS316 blind plug
Integral indicator 女								D . . . . . . . . E . . . . . . . . N . . . . . . . .		Digital indicator Digital indicator with the range setting switch *5 (None)
Mounting bracket 女									A . . . . . . . B . . . . . . . J . . . . . . . C . . . . . . . D . . . . . . . K . . . . . . . N . . . . . . .	SECC Carbon steel 2-inch pipe mounting (flat type) SUS304 2-inch pipe mounting (flat type) SUS316 2-inch pipe mounting (flat type) SECC Carbon steel 2-inch pipe mounting (L type) SUS304 2-inch pipe mounting (L type) SUS316 2-inch pipe mounting (L type) (None)
Optional codes										/口 Optional specification

The ‘女’ marks indicate the most typical selection for each specification. Example: EJA120A-EES4A-97NA-DES5A-92NA/口T04E.EPS
The ‘#’marks indicate the construction materials conform to NACE material recommendations per MR01-75. For the use of
SUS316 material, there may be certain limitations for pressure and temperature. Please refer to NACE standards for details.

*1: Indicates cover flange and process connector material.
*2: Diaphragm material is Hastelloy C-276 or ASTM N10276. Other capsule wetted parts materials are SUSF316L, SUS316L or ASTM grade 316L.
*3: If necessary, specify Mounting bracket code C, D or K.
*4: If necessary, specify Mounting bracket code A, B or J.
*5: Not applicable for Output signal code F and G.
*6: Users must consider the characteristics of selected wetted parts material and the influence of process fluids. The use of inappropriate materials can result in the leakage of corrosive process fluids and cause injury to personnel and/or damage to plant facilities. It is also possible that the diaphragm itself can be damaged and that material from the broken diaphragm and the fill fluid can contaminate the user's process fluids.
Be very careful with highly corrosive process fluids such as hydrochloric acid, sulfuric acid, hydrogen sulfide, sodium hypochlorite, and high-temperature steam (150°C [302°F] or above). Contact Yokogawa for detailed information of the wetted parts material.
*7: SUS316 or ASTM grade 316L

Yokogawa Pressure Transmitter EJA120A-EES4A-97NA

Weight

3.9 kg (8.6 lb) without integral indicator, mounting bracket, and process connector.

Connections

Refer to the model code to specify the process and electrical connection type.

Process Connection of Cover Flange:

DIN 19213 with 7/16 inch x 20 unf female thread.