AT2-MS – ATEX/IECEx Exd Magnesense® low differential pressure transmitter

Quick Overview

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• AT2-MS differential pressure transmitters in Exd Atex/IECEx enclosures
• Ranges from 0-0.1 inch W.C. (0-25 Pa) to 25 inch W.C. (5 KPa)
• Zero center ranges
• Monitors pressure & air velocity
• Display LCD optional

Description

AT2-MS specifications

Service: air and compatible gases and dry gases.
Wetted parts: consult factory.
Temperature limits: Magnesense®: from 0 to 150°F (-18 to 66°C).
Case: from -60 to 60°C*.
Pressure limits: 1 psi max. operative pressure. 10 psi burst.
Accuracy: ±1% f.s. for ranges: 0.25”, 0.5”, 2”, 5”, 10”, 15”, 25”, 50 Pa, 100 Pa, 500 Pa, 1250 Pa, 2 KPa, 3 KPa, 5 KPa. ±2% for ranges: 0.1”-1”, 25 Pa, 250 Pa and all bi-directional ranges
Stability: ±1% f.s. / year.
Power requirements: 10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire).
Output signals: 4 to 20 mA (2-wire); 0 to 5 V, 0 to 10 V (3-wire).
Response time: field adjustable 0.5 to 15 sec. time constant. Provides a 95% response time of 1.5 to 45 seconds (additional delay in response time due to flame arrestors; from full scale to ø up to 90 sec depending on model range).
Zero & span adjustments: Digital push button (to be made in safe area).
Loop resistance: Current output: 0-1250 Ohm max.
Voltage Output: min. load resistance 1 kOhm.
Current consumption: 40 mA max..
Display (optional): 4 digit LCD.
Electrical connections:
4-20 mA, 2-wire: European Style terminal block for 16 to 26 AWG.
0-10 V, 3-wire: European Style terminal block 16 to 22 AWG.
Housing material: aluminium (stainless steel optional).
Finishing: texture epoxy coat RAL7038 (only aluminium enclosure).
Pressure connections: 1/8” NPT F brass (stainless steel optional). In presence of acetylene it is necessary to use stainless steel.
Electrical connections: 2 x 1/2” NPT F standard (cable gland not included).
Dimensions: see drawing below
Weight: 5 Kg ab. (blind)

* Operating ambient temperature is defined also according to the options and pressure instrument choosed.

CAUTION FOR USE ONLY WITH AIR OR COMPATIBLE GASES!
CONTACT FACTORY FOR USE WITH GASES, OTHER THAN AIR AND NITROGEN.

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