Dwyer 1950G User Manual download pdf

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The !;018D<8;?5;:$>;;2&C5@/4combines the best features

of the popular Series 1900 Pressure Switch with a compact explosion-

proof housing.

This unit is UL, CSA, FM listed for use in Class I, Groups A*, B, C, D,

Class II, Groups E, F, & G and Class III atmospheres and Directive

94/9/EC (ATEX) Compliant for II 2G Ex d IIB + H

T6 Gb. IECEx

certified Ex d IIB + H

T6 Gb (-40°C < Ta < + 60°C) units are available.

It is also totally rain-tight for outdoor installations. Six models allow set-

points from 0.07 to 20 inches W.C. ( 1.78 mm to 508.0 mm W.C.).

Easy access to the SPDT relay for electrical hook-up is provided by

removing the top plate of the aluminum housing. A captive screw allows

the cover to swing aside while remaining attached to the unit.

Adjustment to the set point of the switch can be made without

disassembly of the housing. The unit is very compact, about half the

weight and bulk of equivalent conventional explosion-proof switches.

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( &! 5?@10;>

CL, I GR. A*, B, C, D - CL. II GR. E, F, G - CL. III

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0344 II 2G Ex d IIB + H

T6 Gb

'E<11>@525/-@1"A9.1> KEMA 03ATEX2402 X

ATEX Standards:

EN60079-0: 2009

EN60079-1: 2007

IECEx Certified for:

Ex d IIB + H

T6 Gb (-40°C < Ta < +60°C)

IECEx Certificate of Conformity:

IECEx DEK 11.0092X

IECEx Standards:

IEC 60079-0: 2007

IEC 60079-1: 2007

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Operating ranges and deadbands

Set Point

Adjustment

Screw

1/2˝ female

NPT

Electrical

Conduit

Connection

Vent Drain

Plug

Captive

Screw

*GR. A is Only.

External

Ground Screw

 Specify either 24 for 24 VDC, 120 for 120 VAC or 240 for 240 VAC

when ordering. Example: 1950G-00-B-120

 Add “NA” suffix for models with UL, CSA, and FM approvals only.

Example: 1950G-00-B-120-NA

@@1:@5;: Units with the “NA” suffix are not Directive 94/9/EC (ATEX)

compliant. These units are not intended for use in potentially explosive

atmospheres in the EU. These units may be CE marked for other

Directives of the EU.

&$'#"&

&1>B5/1Air and compatible combustible gases.

*1@@10!-@1>5-8? Contact Factory.

'19<1>-@A>1 595@?0 to 140°F (-17 to 60°C). Note: Set point drift may

occur with ambient temperature changes.

$>1??A>1 595@?45˝ w.c. (11.2 kPa) continuous; 10 psig (68.95 kPa)

surge.

:/8;?A>1%-@5:3IP54, NEMA 3, 7 and 9.

&C5@/4'E<11 Form C relay (SPDT).

81/@>5/-8%-@5:310A, 120/240 VAC, 28 VDC. Resistive 50mA, 125

VDC.

$;C1>%1=A5>191:@?24 VDC ±10%. 120 or 240 VAC ±10% optional.

81/@>5/-8;::1/@5;:?Internal Terminal Block.

$>;/1??;::1/@5;:?1/8˝ female NPT.

!;A:@5:3#>51:@-@5;:Diaphragm in vertical position. Consult factory for

other position orientations.

&1@$;5:@06A?@91:@Screw type on top of housing.

*1534@2 lb, 15.7 oz (1.35 kg).

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - A881@5:

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Page 2

1-11/16[42.86]1/8˝ NPT LOWPRESSURE PORT5-7/16[138.1]4-7/8[123.8]1/8˝ NPT HIGHPRESSURE PORT1/2˝ NPT ELECTRICALCONDUITCONNECTIONRANGEADJUSTMENTSCREW17/6

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Page 4

42, 861/8˝ NPTUnterdruck-anschluss138, 1123, 81/8˝ NPTüberdruck-anschluss1/2˝ NPTElektrischerAnschluss6, 7 mmDurchmesserBesfestigungs-bohrungen3-1/2[8

Page 5

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1-11/16[42.86]1/8˝ NPTfPrise bassePression5-7/16[138.1]4-7/8[123.8]1/8˝ NPTfPrise hautePression1/2˝ NPTfRaccord électrique17/64˝ Dia. Mtg. Holes (2)3-

Page 7 - ;81@5:

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Page 8

1-11/16[42.86]1/8˝ NPT LOWPRESSURE PORT5-7/16[138.1]4-7/8[123.8]1/8˝ NPT HIGHPRESSURE PORT1/2˝ NPT ELECTRICALCONDUITCONNECTIONRANGEADJUSTMENTSCREW17/6

Dwyer 1950G User Manual

Browse online or download User Manual for Accessories for electrical Dwyer 1950G. Dwyer 1950G User Manual

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Dwyer 1950G User Manual

Browse online or download User Manual for Accessories for electrical Dwyer 1950G. Dwyer 1950G User Manual

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