DH - 90C SERIES
Features
·High load carrying capacity
·Environmental safety
·Vibration resistance
Electrical Switch Mechanism
·Dry contact switches are recommended for critical environmental conditions.
·Standard switch mechanisms are offered in rugged stainless steel construction.
·Dry contact mechanisms are supplied in both SPDT&DPDT.
Generally a maximum of two mechanisms per single control are available as standard.
With radiation wings for high temp
| Height of housing(single switch funtion) | |||
| Number of radiation fins | |||
| 0(F0) 250 | 4(F4) 357 | 6(F6) 407 | 9(F9) 467 |
Standard Model and specifications
| Control press. rating | Minimum liquid Sp.Gr | Minimum liquid Sp.Gr | Switch contact type | |||
| Psig | Bars | |||||
| 100℉ | 750℉ | 30℃ | 400℃Max | |||
| 285 600 285 350 600 300 350 230 225 285 | 95 450 95 260 450 225 260 95 165 95 | 20 41 20 24 41 21 24 16 16 20 | 7 31 7 18 31 16 18 7 11 7 | 0.57 0.65 0.67 0.67 0.65 0.57 0.67 0.50 0.81 0.71 | 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A 120VAC,15A | SPDT |
Applications
The sensor is a displacer heavier than the liquid, which is suspended by a commpression spring.
When liquid contacts the displacer, a buoyancy force is produced, which causes the effective weight of the displacer to change, this causes the spring to retract slightly to a new equlibrium position.
When the spring retracts the attraction sleeve moves upward into the field of external magnet.
(Thus overcoming the force of the bias spring and actuating the switching element.)
This principle allows adjustment of the switching point by moving the displacer along the guide pipe.
Description model
SBS - Type
SBF - Type
SSF - Type
SSFV - Type
| B(1) | C(1) | D(2) | E(2) | F | |||||
| INCH | MM | INCH | MM | INCH | MM | INCH | MM | INCH | MM |
| 2 1/4" | 57 | 3 | 76 | 10 1/2" | 267 | 3 11/16" | 94 | 6 1/2" | 165 |
| 2 5/8" | 67 | 3 1/2" | 89 | 10 1/2" | 267 | 3 11/16" | 94 | 6 | 152 |
| 2 1/2 | 64 | 2 3/4" | 95 | 9 | 229 | 3 11/16" | 81 | 6 | 152 |
1. Nominal dimensions based upon minimum differential setting, minimum liquid specific gravity and single switch function.
2. Dimensions are for 1” NPT or S,W. type only.
