Add a switch to your Model 120-122 DP Gauge

switch120caswitch120laswitch122ma

The Model 120 DP gauge is available with one or two hermetically sealed reed switches. The switches are adjustable within a defined percentage of the full scale range of the gauge and are available in SPDT and SPST, normally open or normally closed configurations for various load power ratings. The switches can be set to activate or deactivate on rising or falling pressure. Factory preset switch at no extra charge (Specify Setting) Specify increasing or decreasing range to be set. EXAMPLE: Set at 10 PSID increasing.

About Switch Products

Factory preset switch at no extra charge (Specify Setting)
Specify increasing or decreasing range to be set.

All switches are field adjustable!

 

120switch120aa

Model 120 shown with "AA" switch option
(1) switch in STD. enclosure with Grommet wire seal

switch120ca

Model 120 shown with "CA" switch option
(2) switches in STD. enclosure with
1/4" FNPT electrical connections NEMA 4X

switch120la

Model 120 shown with "LA" switch option.
(1) switch in STD. enclosure with plug-in DIN connector (DIN43650/IP65-PG11)

switch122ma

Model 122 shown with "MA" switch option
(1) Reed switch (Clamp-on)

Bulletins/IOMs

Model 120 - 122 Switch Specifications

The standard reed switch is enclosed in a weather-resistant plastic housing. Adjustment of the switch setting is made with an external screw adjustment. The switch functionality will be different for gauges with bi-directional operation for positive and negative delta pressure. For example a SPDT switch with positive .P applied to the gauge, the red wire will be N.O. and the black will be N.C.

For negative .P the functionality will be reversed. Location for a single SPDT (grommet or conduit) switch will be on the bottom of the gauge body for a normal port and on the top for a reverse port. 3rd Party Certified Explosion Proof enclosures with SPDT or SPST switches rated Class l, Div 1, Groups C & D, Class ll, Div 2 Groups E, F, & G and Hazardous location Class l, Div 2, Groups A, B, C & D, Class II, Div 2 Groups F, & G are available. Please contact Mid-West direct at 1-800-648-5778.

OPTION

MODEL 120 ELECTRICAL SWITCH CONFIGURATIONS (CE marked)

A One (1) Switch in standard enclosure with grommet Wire Seal
(adjustable 10-90% of full scale range)
B Two (2) Switches in standard enclosures with grommet Wire Seal
(adjustable 10-90% of full scale range)
C One (1) Switch in standard enclosure with 1/4" FNPT electrical connection NEMA 4X (adjustable 10-90% of full scale range)
D Two (2) Switches in standard enclosures with 1/4" FNPT electrical connection NEMA 4X (adjustable 10-90% of full scale range)
L One (1) Switch in standard enclosure with plug-in connector
(DIN 43650/IP65-PG11) (adjustable 10-90% of full scale range)
M Two (2) Switches in standard enclosures with plug-in connector
(DIN 43650/IP65-PG11) (adjustable 10-90% of full scale range)

(1) & (2) switch Division l or Division ll for Hazardous locations available.
Please contact Mid-West at 1-800-648-5778

 

OPTION

MODEL 122 ELECTRICAL SWITCH CONFIGURATIONS (CE marked)

M One (1) Reed switch (clamp-on) (adjustable 10-100% of full scale range)
N Two (2) Reed switches (clamp-on) (adjustable 10-100% of full scale range)

 

OPTION

ELECTRICAL SPECIFICATIONS (For Resistive Loads)

A SPDT 3W, 0.25 Amp, 125 VAC/VDC (standard)

SPST 60W 3.0 Amp & SPDT 60W 1.0 Amp 240 VAC/VDC available
Please contact Mid-West at 1-800-648-5778

 

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