| Feature: |
| Series 621 Pressure Indicator 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 3-1/2 digit LCD display while 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 ranges from 0-0.75 kPa to 0-690 kPa. Circuit design enables use in 2-wire current loops. |
| Specifications: |
| Service | Air and non-combustible, compatible gases. |
| Accuracy | +/-0.5% F.S. (Includes linearity, hysteresis & repeatability). |
| Stability | ± 1% F.S./yr. |
| Temperature Limits | 0 to 140°F (-17.8 to 60°C). |
| Compensated Temperature Limits | 20 to 120°F (-6.67 to 48.9°C). |
| Thermal Effect | 0.025% F.S./ºF (0.045% F.S./°C). |
| Power Requirements | 10-35 VDC (2-wire). |
| Output Signal | 4 to 20 mA. |
| Zero & Span Adjustments | Accessible Potentiometers. |
| Loop Resistance | DC; 0-1250 ohms max. |
| Current Consumption | DC; 38 mA max. |
| Electrical Connections | Terminal block |
| Process Connections | Barbed for 1/8˝ (3.18 mm) I.D. tubing. |
| Enclosure Rating | Face designed to meet NEMA 4 (IP66). |
| Mounting Orientation | Not position sensitive |
| Weight | 7.8 oz (221 g). |
| Agency Approvals | CE. |
Pressure 
