Mô tả sản phẩmCông Tắc Chênh Áp Series H3
| Model |
: |
SERIES H3 |
| Manufacturer |
: |
DWYER |
| Origin |
: |
USA |
| Wetted Materials |
: |
See pressure chamber and diaphragm material in model chart. |
| Temperature Limit |
: |
-4 to 220°F (-20 to 104°C), ATEX: -20 to 90°C (-4 to 194°F). |
| Pressure Limit |
: |
1500 psig (103 bar). |
| Enclosure Rating |
: |
Standard meets NEMA 4X (IP56), drain option meets NEMA 3 (IP54). For hazardous use see the hazardous location ratings chart. |
| Switch Type |
: |
SPDT or DPDT snap switch. |
| Electrical Rating |
: |
5A @ 125/250 VAC, 30 VDC. |
| Electrical Connections |
: |
See model chart. |
| Conduit Connection |
: |
3/4" female NPT. |
| Process Connection |
: |
1/8" female NPT. |
Mounting Orientation
|
: |
Vertical. |
| Set Point Adjustment |
: |
Internal screw. |
| Weight |
: |
4 lb, 2 oz (2 kg). |
| Deadband |
: |
Approximately 5% of range. |
| Agency Approvals |
: |
UL, CSA, CE, and ATEX see ratings chart |
| Example |
H3 |
S |
2 |
S |
C |
MV |
H3S-2SC-MV Differential Pressure Control; 316 SS pressure chamber and Fluoroelastomer diaphragm; weatherproof and ATEX; SPDT snap action switch with gold contacts; fixed deadband, automatic reset; adjustable range 0.5-15 psid |
| Construction |
H3 |
|
|
|
|
|
Series designator, weatherproof and explosion-proof |
Pressure
Chamber &
Diaphragm
Material
(Wetted) |
|
A
S |
|
|
|
|
Aluminum chamber with Nitrile diaphragm 316 SS chamber with Fluoroelastomer diaphragm |
Adjustable
Operating
Range |
|
|
1
2
3
4 |
|
|
|
Adjustable range 10-180 in. w.c. (2.48-44.78 kPa)
Adjustable range 0.5-15 psid (0.03-1 bar)
Adjustable range 5-70 psid (.34-4.8 bar)
Adjustable range 10-200 psid (.7-13.8 bar) |
Circuit
(Switch)
Options |
|
|
|
S
D |
|
|
SPDT snap action switch rated 5A @ 125/250 VAC, 30 VDC
DPDT snap action switch rated 5A @ 125/250 VAC, 30 VDC |
Electrical
Connection
Options |
|
|
|
|
L
T
C |
|
18 AWG x 18 inch lead wires
UL, CSA approved internal terminal block
ATEX approved internal terminal block |
| |
|
|
|
|
|
DRAIN
MV
VIT |
Housing with drain - allows condensate to be drained from inside enclosure (meets NEMA 3 instead of 4X)
Gold contacts on snap switch for dry circuits rated 1A @ 125 VAC, 1A resistive or 0.5 A inductive @ 30 VDC
Fluoroelastomer diaphragm option where not standard |
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