Series 685 Differential Pressure Transmitter

Series 685 Differential Pressure Transmitter

Series AT-MSX ATEX/IECEx Approved Magnesense® Differential Pressure Transmitter

Series AT-MSX ATEX/IECEx Approved Magnesense® Differential Pressure Transmitter

Series AT-605 ATEX/IECEx Approved Magnehelic® Differential Pressure Indicating Transmitter

Series 605 in Flameproof ATEX/IECEx Enclosure

The Series AT-605 ATEX/IECEx Approved Magnehelic® Differential Pressure Indicating Transmitter provides for both visual monitoring and electronic control of very low differential pressure in hazardous locations. An easy-to-read dial gage is complimented by the two-wire, 4-20 mA control signal utilizing the time-proven Dwyer® Magnehelic® gage mechanical design and Series 600 transmitter technology. The two-wire design simplifies any 4-20 mA control loop powered by a 10-35 VDC supply. Flameproof enclosures are available in aluminum and can include a glass window for viewing process pressure on the gage face.

Important notes for installation:
• Cables must be fitted through 1/2" NPT cable gland or ATEX/IECEx conduit (not supplied with instrument).
• Make sure after cabling to close tight cover and cable gland, in order to maintain IP66 rating.
• 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 areas.

Please see Series 605 for non-ATEX/IECEx approved.

California Residents: Click Here for Proposition 65 WARNING.

Product Applications

  • Monitor duct, room, or total building pressures
  • Filter monitoring
  • Local indication of clean room pressures with process signal sent to control room
  • Hazardous area pressure measurement and transmitter
Grouped product items
Model Description Availability* Qty Price

Specifications

GAGE SPECIFICATIONS
Service:
Air and non-combustible, compatible gases.
Wetted Materials:
Consult factory.
Accuracy:
See page reference on catalog page.
Pressure Limits:
See pressure limit chart on catalog page.
Temperature Limits:
20 to 120°F (-6.67 to 48.9°C) (Note: Product temperature limits differ from case).
Size:
4" (101.6 mm) dial face.

TRANSMITTER SPECIFICATIONS
Accuracy:
See page reference on catalog page. Includes linearity, hysteresis, repeatability.
Compensated Temperature Range:
32 to 120°F (0 to 48.9°C).
Thermal Effect:
±0.025% FS/°F (0.045% FS/°C).
Stability:
±1% FS/year.
Output Signal:
4-20 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 for versions VS1/VS2/VL1).
Housing Material:
Aluminum.
Finishing:
Texture epoxy coat RAL7015.
Process Connections:
1/8" NPT female brass (SS optional).
Electrical Connections:
Two 1/2" NPT female. Cable gland not included.
Weight:
13.2 lb (6.0 kg).
ATEX Certificate:
INERIS 21ATEX0033X.
IECEx Certificate:
IECEx INE 21.0064X.
Compliance:
ATEX: CE 0080 EX II 2G Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) II 2D Ex tb IIIC T75 °C Db;
IECEx: Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) Ex tb IIIC T75°C Db.

Features

  • ATEX/IECEx housing provides all the capabilities and values of the Series 605 Magnehelic® transmitter in a flame and explosion-proof enclosure
  • Quick response to pressure changes means no delay in assessing critical situations
  • Durable and rugged housing and high-quality components combined provide long service life and minimized downtime
  • High impact strength and high temperature rated for applications where hazardous environments exist
  • Increased response time at low pressures with LD port configuration

Product Literature

Manuals

Catalog Pages

Model Chart

SERIES AT-605 PRESSURE TRANSMITTER 
     
AT-102NA-605-X-X-XXXX AT-605 PRESSURE XMTR W/ ATEX ENCL

         1ST SYMBOL (1ST X) RANGE
           00N    0.05 - 0 - 0.20 INWC
           11     0.25 - 0 - 0.25 INWC
           0      0 - 0.50 INWC
           1      0 - 1.0 INWC
           2      0 - 2.0 INWC
           3      0 - 3.0 INWC
           6      0 - 6.0 INWC
           10     0 - 10 INWC
           20     0 - 20 INWC
           30     0 - 30 INWC
           50     0 - 50 INWC
           60PA   0 - 60 PA
           125PA  0 - 125 PA
           250PA  0 - 250 PA
           500PA  0 - 500 PA

         2ND SYMBOL (2ND X) HOUSING COVER
            B     BLIND
            W     GLASS WINDOW

         3RD SYMBOL (3RD X) PRESSURE PORT/VENTING VALVE MATERIAL
            1     BRASS
            2     STAINLESS STEEL

         4TH SYMBOL (4TH X) PRESSURE PRORT/VENTING VALVE
            VS0   STD PRESSURE PORT 1/8” FEMALE NPT/NO VENTING VALVE
            VL0   LD PRESSURE PORT 1/8” FEMALE NPT/NO VENTING VALVE
            VS1   STD PRESSURE PORT 1/8” FEMALE NPT/STD VENTING VALVE
            VS2   STD PRESSURE PORT 1/8” FEMALE NPT/LD VENTING VALVE
            VL1   LD PRESSURE PORT 1/8” FEMALE NPT/LD VENTING VALVE

         5TH SYMBOL (5TH X) CABLE ENTRY
            12    1/2" NPT ANSI/ASME B1.20.1
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Model Description Availability* Price