- Sign In
- |
- Sign Up
- |
- My Quote (0)
- |
- CART (0)
This 3-in-1 PHOTOHELIC® pressure gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge to measure and control positive, negative, or differential pressures of air and compatible gases. Two phototransistor-actuated DPDT relays are included for low and high limit control.
This 3-in-1 PHOTOHELIC® pressure gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge to measure and control positive, negative, or differential pressures of air and compatible gases. Two phototransistor-actuated DPDT relays are included for low and high limit control.
Easy-to-adjust set point indicators are controlled by knobs located on the gauge face. Individual set point deadband is one pointer width - less than 1% of full-scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.
Features
Applications
| Gauge | |
| Service | Air and non-combustible, compatible gases |
| Accuracy | ±2% of FS at 70°F (21.1°C). ±3% on -0 and ±4% on -00 models |
| Pressure Limits | -20" Hg to 25 psig (-0.677 to 1.72 bar); MP option: 35 psig (2.41 bar); HP option: 80 psig (5.52 bar) |
| Temperature Limits | 20 to 120°F (-6.67 to 48.9°C) |
| Process Connections | 1/8" female NPT |
| Dimensions | 4" (101.6 mm) dial face, 5" (127 mm) OD x 8-1/4" (209.55 mm) |
| Weight | 4 lb (1.81 kg) |
| Switch | |
| Switch Type | Each set point has 2 form C relays (DPDT) |
| Repeatability | ±1% of FS |
| Electrical Rating | 10 A at 28 V DC, 10 A at 120, 240 V AC |
| Electrical Connections | Screw terminals. Use 167°F (75°C) copper conductors only |
| Power Requirements | 120 V AC, 50/60 Hz; 240 V AC and 24 V AC power optional |
| Mounting Orientation | Diaphragm in vertical position |
| Set Point Adjustment | Adjustable knobs on face |
| Compliance | CE, CSA, UL |
| Gauge | |
| Service | Air and non-combustible, compatible gases |
| Accuracy | ±2% of FS at 70°F (21.1°C). ±3% on -0 and ±4% on -00 models |
| Pressure Limits | -20" Hg to 25 psig (-0.677 to 1.72 bar); MP option: 35 psig (2.41 bar); HP option: 80 psig (5.52 bar) |
| Temperature Limits | 20 to 120°F (-6.67 to 48.9°C) |
| Process Connections | 1/8" female NPT |
| Dimensions | 4" (101.6 mm) dial face, 5" (127 mm) OD x 8-1/4" (209.55 mm) |
| Weight | 4 lb (1.81 kg) |
| Switch | |
| Switch Type | Each set point has 2 form C relays (DPDT) |
| Repeatability | ±1% of FS |
| Electrical Rating | 10 A at 28 V DC, 10 A at 120, 240 V AC |
| Electrical Connections | Screw terminals. Use 167°F (75°C) copper conductors only |
| Power Requirements | 120 V AC, 50/60 Hz; 240 V AC and 24 V AC power optional |
| Mounting Orientation | Diaphragm in vertical position |
| Set Point Adjustment | Adjustable knobs on face |
| Compliance | CE, CSA, UL |
