Differential Pressure Transmitters- Series 604A
4-20 mA signal. Two-three or four wire operation.Pressure rated to 30 psig.
The Dwyer Series 604A differential pressure transmitter offers very low ranges down to 0-0.1" w.c. yet withstands continuous pressure to 30 PSIG. The tough filled Nylon housing features simple surface mounting arrangement and barbed connections. The units are compact and lightweight yet provide overall accuracy of ±2%. Output signal is 4-20 mA. Zero and span adjustments plus terminal block connections are easily accessible but protected in auxilary housing.
SPECIFICATIONS
| GENERAL | |
| Maximum Pressure: | 50 PSIG surge, 30 PSIG continuous to either pressure connection. |
|---|---|
| Media Compatibility: | Air & non-combustible, non-corrosive gases. |
| ELECTRICAL | |
| Power Supply: | 13-35 VDC - 2, 3 or 4 wire; 18-26 VAC - 4 wire. |
| Connections: | 4 screw terminal block |
| Output Signal: | 4-20 mA DC (limited at 38 mA DC) |
| Loop Resistance: | DC; 0-1100 ohms, AC; 0-1130 ohms. |
| Current Consumption: | DC; 38 mA max. AC; 76 mA max. |
| MATERIALS | |
| Mineral and glass filled nylon housing, high impact acrylic cover, silicone rubber diaphragm. | |
| MECHANICAL | |
| Weight: | 6 ozs. |
| Span and Zero Adjustments: | Protected poteniometers |
| Pressure Connections: | Barbed, for 3/16" I.D. tubing. |
| PERFORMANCE AT 70°F | |
| Zero Output: | 4 mA DC |
| Full Span Output: | 20 mA DC Accuracy (includes linearity, hysteresis, repeatability): ±2% of full span output. |
| Span & Zero: | Adjustable to 0.05% of full span |
| Warm-up Time: | 10 minutes. |
| ENVIRONMENTAL | |
| Operating Temperature: | 20° to 120°F |
| Thermal Errors: | 7;1%/50°F typical |
| STANDARD ACCESSORIES | |
| Mounting screws (2), #10 X 1" long pan head sheet metal screws. | |
MODULE MODELS
| Model Number | Ranges In Inches W.C. | ||
|---|---|---|---|
| As Stocked | Minimum | Maximum | |
| 604A-0 604A-1 604A-2 604A-3 |
0-.50 0-2.0 0-10 0-50 |
0-.10 0-.50 0-2.0 0-15 |
0-.10 0-4.0 0-20 0-120 |