Material No.: 30571932
| Silica measurement range | 0-5000 ppb, limit of detection per ASTM Method D7126 |
| Operating Range (Temp.) | 5 °C – 60 °C 41 °F – 140 °F |
| Sample Flow rate | 50 – 250 mL / min |
| Process Connection | Sample inlet: 6 mm or 1/4" OD tube SS compression fitting Drain hose: 19 x 25.4 mm (¾ x 1"), 2 m (6 ft) length included |
| Protection Rating | IP55 |
| Ingress Protection | IP55 (Enclosure) IP66 / NEMA4X (Electronics) |
| Silica Measurement Accuracy | ± 5 % of reading or ± 1 ppb, whichever is greater |
| Operator Interface | Simultaneous display of silica concentration and measurement or auto-cal status TFT color touchscreen |
| Zero calibration | Automatic, every measurement cycle |
| Analog Output | Powered 0 / 4 – 20 mA, 22 mA alarm, 500 ohm max load, not for use with externally powered circuit |
| Analog Output Scaling | Linear, bi-linear, logarithmic (1,2,3,4 decades), auto ranging |
| Power Supply | 100 – 240 VAC, 50 – 60 Hz, 100 W on power loss all settings are retained without batteries |
| Power Supply (AC/DC) | 100 V – 240 V |
| Flow Rate | 50 mL/min – 250 mL/min |
| Digital Input | Remote start / stop of measurement cycle |
| Measurement Parameter | Silica |
| Reagent Consumption | Approx 500 mL each per 3 months with 20 min measurement cycle time |
| Humidity | 10 – 90 % non-condensing |
| Communication | PROFIBUS DP |
| Grab Sample Measurement | 500 mL capacity |
| Sample Pressure | 0.3 – 7 bar (5 – 100 psig) |
| Analog Output Accuracy | ± 0.05 mA |
| Measurement Cycle Time | 20 min typical Adjustable ≥ 10 min |
| Weight | 18 kg (40 lbs) |
| Sample Temperature | 5 – 60 °C (41 – 140 °F) |
| Model Family | 2850Si |
| EnclosureType | Full |
| Dimensions HWD | Enclosure: 543 x 413 x 300 mm (21.4" x 16.3" x 11.8") |
| Outputs | 8 Powered 0 / 4 – 20 mA |
| Relay Contact(s) | 4-SPST Type Reed 250 VAC or DC, 0.5 A 4-SPST mechanical rated at 250 VAC, 3 A |
| Resolution | 4 digits with decimal, autoranging 0.001 ppb in lowest range |
| Built-in sequencer | Yes |
| Ambient Operating Temperature | 10 – 50 °C (50 – 122 °F) |
| Ratings/Approvals | CE, cULus |
| Span calibration | Automatic per schedule once per month, typical |
