Michell Instruments

EPD Intrinsically Safe Field Display

4-digit loop-powered local monitor for the Easidew PRO I.S. and Easidew I.S. transmitters

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EPD Intrinsically Safe Field Display 05606

The Intrinsically Safe Field Display is a 4-digit loop-powered local monitor for the Easidew PRO I.S. and Easidew I.S. transmitters. It is certified with ATEX, IECEx, and FM and housed in an IP66 enclosure with a terminal compartment for wiring. The measurement unit can be labelled as ppmV, ppmW, °C dp or °F dp.

• Loop powered 4-20mA indicator. Intrinsically safe certified with • ATEX, IECEx, and FM
• Operating temperature between -40 and +70°C
• Bold 34mm high 4 digit display with optional backlight
• Robust GRP enclosure providing IP66 protection. Can be mounted by • itself or inside a sampling system enclosure
• Built-in terminal compartment for easy wiring
• Two optional galvanically isolated solid state alarm outputs

Input
Current (dp)4 to 20mA
Voltage DropLess than 1.2V at 20°C
Less than 1.3V at –40°C
Less than 5V with optional loop powered
backlight
Display
TypeLiquid crystal, non-multiplexed 4 digits 34mm high
ResolutionDewpoint
0.1 °C/°F
ppmV / ppmW
1 for 1000 – 9999
0.1 for 100.0 – 999.9
0.01 for 10.00 – 99.99
0.001 for 0.000 – 9.999
SpanAdjustable between 0 & ±9999 with 20mA input
ZeroAdjustable between 0 & ±9999 with 4mA input
Over-Range/Under-Range9999 or –9999 with all decimal points flashing
Certification (Display Only)
ATEXGroup II Category 1GD
Ex ia IIC T5 Ga
Ta = -40 to +70°C
IECExEx ia IIC T5 Ga
Tamb = -40 to 70°C
FMCL I, II, III: Div 1: GP A, B, C, D, E, F & G
T4 @ 70°C
Environmental
Operating Temperature-40 to +70°C (-20 to +60°C for FM version)
Storage Temperature-40 to +85°C
HumidityTo 95% at 40°C non-condensing
EnclosureIP66
Mechanical
Terminals (dp)Screw clamp for 0.5 to 1.5mm2 conductors
Weight1.7kg
Accessories
BacklightGreen, loop powered. Voltage drop of indicator plus backlight less than 5V
AlarmsTwo alarm outputs each of which may be independently configured. Isolated solid state switch complying with requirements for simple apparatus
Ron 5Ω + 0.7V max
Roff 1MΩ min
External KeypadMembrane keypad enables indicator to be configured without removing cover
Stainless Steel Legend PlateEtched legend plate with tag number or application attached to front of the instrument
Pipe Mount KitStainless steel bracket secured by two stainless steel worm drive hose clips for 60 to 80mm (outside diameter) vertical or horizontal pipe
  • Thumbnail of document Michell Instruments IS Field Display 97320 US Datasheet v1 1 13480
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    Michell Instruments IS Field Display 97320 US Datasheet v1 1 13480

    Download
  • Thumbnail of document Michell Instruments I S Field Display Manual v3 1 13481
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    Michell Instruments I S Field Display Manual v3 1 13481

    Download

Accessories

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