Eja310a Pressure Transmitter
DESCRIPTION:
Excellent performance and stability Compact and light-weight design Fieldbus communication capability
1. The EJA Series is available with BRAIN, HART, FOUNDATION™ fieldbus or PROFIBUS PA communication protocols.
2. The high performance absolute pressure transmitter model EJA310A can be used to measure liquid, gas, or steam pressure.
3. It outputs a 4 to 20 mA DC signal corresponding to the measured absolute pressure.
FEATURES:
Excellent performance and stability
The EJA series uses a silicon resonant sensor formed from monocrystal silicon, a perfect material which has no hysteresis in pressure or temperature changes.
The sensor minimizes overpressure, temperature change, and static pressure effects, and thus offers unmatched long-term stability.
Compact and light-weight design
Half the weight of conventional models thanks to miniaturization of the casing with the amplifier ASIC, pressure cell structure, and flange. The ASIC uses the minimum
number of parts and improves the reliability of the amplifier.
Fieldbus communication capability
Fieldbus is a digital two-way communication system. It is a revolutionary technology for configuring instrumentation control systems and a promising successor to the
standard 4 to 20 mA analog communication used in most field instruments today.
EJA series offers two types of fieldbus models, FOUNDATION™ fieldbus Low Voltage Mode and PROFIBUS PA devices, which ensure interoperability
between Yokogawa and other manufactures. As for software, the EJA series incorporates two AI function blocks that compute differential and static pressures to allow flexible
configuration of instrumentation.
MODEL AND SUFFIX CODES:
| Model | Optional codes | Description |
| EJA310A | ·········· | Absolute pressure transmitter |
| OutputSignal | -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) | L········ M········ A········ | 0.67 to 10 kPa {5 to 75 mmHg} {0.2 to 2.95 inHg abs} {6.7 to 100 mbar} 1.3 to 130 kPa {9.6 to 960 mmHg} {0.38 to 38 inHg abs} {13 to 1300 mbar} 0.03 to 3 MPa {0.3 to 30 kgf/cm2} {4.3 to 430 psia} {0.3 to 30 bar} |
| Wetted parts material^6 | S········· | [Body] [Capsule] [Vent plug] SCS14A^1 SUS316L^2 SUS316^7 |
| process connections | 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 | A········ B········ C········ | [Maximum working pressure] (L capsule) (M capsule) (A capsule) SCM435 10 kPa abs 130 kPa abs 3 MPa abs {75 mmHg abs} {960 mmHg abs} {30 kgf/cm2 abs} SUS630 10 kPa abs 130 kPa abs 3 MPa abs SUH660 10 kPa abs 130 kPa abs 3 MPa abs |
| Installation | 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 | 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 | D········ E········ N········ | Digital indicator Digital indicator with the range setting switch^5 (None) |
| Mounting bracket | A········ B········ J········ C········ D········ K········ N········ | SECC Carbonsteel 2-inch pipemounting(flat type) SUS304 2-inch pipe mounting(flat type) SUS316 2-inch pipe mounting(flat type) SECC Carbonsteel 2-inch pipe mounting(L type) SUS304 2-inch pipe mounting(L type) SUS316 2-inch pipe mounting(L type) (None) |
| Optional codes | /◊Optional specification |
