Pressure Indicating Transmitter- Series 621
1/16 DIN Housing, Digital Readout, 4 - 20 mA Output
Series 621 Pressure Indicating is a 1/8 DIN measuring and controlling instrument designed for positive, negative or differential pressures of air and compatible gases. Pressure readings are displayed on a large 3 ½ digit LCD display which unit simultaneously produces a standard 4-20 mA output signal. Over a dozen stocked ranges are available from 0-3 in. w.c. to 0-100 psid or choose metric units in rances fro 0.075 kPa to 0-690 kPa. Versatile circuit design enables use in 2, 3 or 4-wire current loops.
PHYSICAL DATA.
GENERAL |
|
| Pressure Connections: | Barbed for 1/8" (3mm) I.D. tubing |
|---|---|
| Media Compatibility: | Air and non-corrosive gases |
| Electrical Connections: | Terminal block |
| Housing: | Gray, PVC type I |
| Weight: | 8.5 oz (241 g) |
| Adjustments: | Accessible potentiometers |
| ELECTRICAL | |
| Power Supply: | 10 - 35 VDC (2, 3 or 4-wire); 16 - 26 VAC (4-wire) |
| Output Signal: | 4-20 mA DC, limited at 38 mA DC |
| Loop Resistance: | 0-1300 DC max, 0-1200 AC max |
| Current Consumption: | DC, 38 mA max.; AC, 76 mA max |
| Warm-Up Time: | 10 minutes |
| PERFORMANCE AT 70°F (21°C) |
|
| Zero Output: | 4 ma DC |
| Full Span Output: | 16 mA DC |
| Accuracy: | ±0.5% of F.S.O. (Includes linearity, hysteresis and repeatability) |
| Span & Zero: | Adjustable to 0.5% of full span |
| Warm-up Time: | 10 minutes |
| ENVIRONMENTAL |
|
| Operating Temperature: | 20 to 120°F (-6.7 to 49°C) |
| Thermal Errors: | ±0.02% per °F typical |
MODULE MODELS
| Model Number | Range | Maximum Pressure |
|---|---|---|
| 621-3 621-6 621-10 621-20 621-40 621-100 621-200 621-1000 621P-10 621P-20 621P-30 621P-50 621P-100 |
0-3 in. w.c. 0-6 in. w.c. 0-10 in. w.c. 0-20 in. w.c. 0-40 in. w.c. 0-100 in. w.c. 0-200 in. w.c. 0-1000 in. w.c. 0-10 psid 0-20 psid 0-30 psid 0-50 psid 0-100 psid |
5 psig 5 psig 5 psig 11 psig 11 psig 29 psig 29 psig 150 psig 58 psig 58 psig 58 psig 150 psig 150 psig |