Dwyer Instruments AT2605 Specifications

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6-19/64

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1/8˝ NPT

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[65.00]

19/32

[15.00]

/8˝ NPT

8-17/64 [210.00]

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8-7/64

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Series

AT2

ATEX Approved 605 Differential Pressure

Indicating Transmitter

Series 605 in Flame-Proof ATEX Enclosure

he ATEX approved Series AT2605 Indicating Transmitter provides for both visual

onitoring and electronic control of very low differential pressure in hazardous locations.

he easily read dial g age is complimented by the two-wire, 4 to 20 mA control signal

T utilizing the time-proven Dwyer transmitter technology. The two-wire design simplifies any 4 t o 20 mA control loop powered by a 10 to 35 VDC supply. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing process pressure on gage face.

mportant notes for installation:

• Cables must be fitted through 1/2˝ NPT cable gland or ATEX conduit (not supplied with instrument).

• Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).

• Open cover only after de-energizing instrument.

• Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

Series Range

Construction Housing

Cover

Process Connection Overpressure Plug

Tag

AT2605

Magnehelic®gage mechanical design and Series 600

-00N

-11

-0

-1

-2

-3

-6

-10

-20

-30

-50

-60 Pa

-125 Pa

-250 Pa

-500 Pa

-X

-A

B O

1 2

OPV

.05 to 0 to .20 in w.c. .25 to 0 to .25 in w.c. 0 to .50 in w.c. 0 to 1.0 in w.c. 0 to 2.0 in w.c. 0 to 3.0 in w.c. 0 to 6.0 in w.c. 0 to 10.0 in w.c. 0 to 20.0 in w.c. 0 to 30 in w.c. 0 to 50 in w.c. 0 to 60 Pa 0 to 125 Pa 0 to 250 Pa 0 to 500 Pa Standard construction Aluminum

Blind Glass top cover 1/8˝ NPT female brass ports 1/8˝ NPT female SS ports Standard without overpressure relief valve Overpressure relief valve Material same as ports SS information label

SPECIFICATIONS

AGE SPECIFICATIONS

ervice: Air and non-combustible,

ompatible gases.

Wetted Materials: Consult factory. Accuracy: See page reference

below. Pressure Limits: See page reference

elow.

u b

Temperature Limits: 20 to 120°F (-6.67 to 48.9°C); Case: -76 to 140°F (-60 to 60°C) (Note: Product temperature limits differ from case). Size: 4˝ (101.6 mm) dial face.

u605 Ordering Page: See page 52 (Series 605)

TRANSMITTER SPECIFICATIONS

ccuracy: See page reference

elow. Includes linearity, hysteresis,

epeatability.

Compensated Temperature Range:

32 to 120°F (0 to 48.9°C). Thermal Effect: ±0.025% FS/°F (0.045% FS/°C).

tability: ±1% FS/year.

S Power Requirements: 10 to 35 VDC

(2-wire).

Output Signal: 4 to 20 mA. Zero and Span Adjustments:

Protected potentiometers on 605 face. Can access those by opening case. Allowed only in safe zone. Loop Resistance: DC; 0 to 1250 Ω max. Current Consumption: DC; 38 mA max. Electrical Connections: Screw terminal block. Mounting Orientation: Diaphragm in vertical position. Enclosure Rating: IP66. IP65 with option OPV, overpressure relief valve.

Housing Material: Aluminum. Finishing: Texture epoxy coat

RAL7038. Process Connections: 1/8˝ NPT female brass (SS optional). In presence of acetylene it is necessary to use SS. Electrical Connections: Two 1/2˝ NPT female. Cable gland not included.

Weight: 12.6 lb (5.7 kg). ATEX Approved Products from Comhas with ECN: BVI 14ATEX0072. Agency Approvals: CE 1370 II2

GD Ex d IIC Gb T6; -60°C ≤ Ta ≤ +60°C Ex tb IIIC Db T 85°C.

PRESSURE

Differential Pressure Transmitters