| Performance | |
| Measurement Technology | Thermo-paramagnetic oxygen sensor |
| Measured Gas | Oxygen (O2) |
| Background Gas | Analyzer is calibrated in the background gas of the process. Standard backgrounds include N2, CO2, CH4, H2, He & BIOGAS. |
| Gas Requirements | Non-condensing sample with particles <3μm |
| Measurement Range | Analyzer is calibrated to the range the customer requires. Select from:
0–0.5% up to 0-50% and 20, 80 or 90–100% |
| Display Resolution | 0.01%
0.1% for suppressed zero ranges |
| Display Type | Backlit LCD (not on 501-GP2 model) |
| Intrinsic Error (Accuracy) | < ±1% of span or ±0.02% O2, whichever is greater
< ±0.2% O2 or 1% of range, whichever is greater (for suppressed zero ranges 20/80/90 to 100%) |
| Response Time (T90) with High Speed Response (HSR) Enabled | < 15 seconds |
| Repeatability | ±0.2% of span or 0.02% O2, whichever is greater |
| Linearity | ±0.5% of span or 0.05% O2, whichever is greater |
| Zero Stability | ±0.25% of span per month |
| Span Stability | ±0.25% of span per month |
| Sample Flow Rate | 100 to 500 ml/min (0.2 to 1.27 scfh) |
| Sample Flow Effect (Calibrated at 300 ml/min) | < 1% of span for flows within stated range |
| Sample Pressure | 0.75 to 2 Bar A (unit must be calibrated at the same pressure as sample) |
| Sample Temperature | A constant temperature between 5 and 55°C |
| Sample Cell Temperature | +50°C |
| Electrical Specifications | |
| Analog Inputs | 1 off mA input for an external sensor (can be displayed on the screen)
1 off mA input to act as an active compensation for the process conditions |
| Analog Outputs | 2 off 4-20 mA outputs (powered with 24V excitation voltage) |
| Output Ranges | Primary range is set to the calibrated range of the instrument. The second is user-selectable |
| Alarms | 2 off single pole changeover relays for concentration (250 V, 5 A max) |
| Datalogging | Digital communications can be used to log the output from the analyzer on an external device |
| Digital Communications | MODBUS RTU over RS485 Protocol |
| Power Supply | 24 V DC, 1.5 A max |
| Operating Conditions | |
| Ambient Temperature | +5 to +40°C |
| Mechanical Specifications | |
| Warm-Up Time | < 25 minutes (at 20°C ambient) |
| Stabilization Time | 5 minutes |
| Wetted Materials | 316 stainless steel, borosilicate glass, platinum, (plus O-ring) |
| Dimensions (w x d x h) | 260 x 180 x 128mm |
| Weight | Approx. 3kg |
| O-Ring Materials | Viton |
| Gas Connection | 1/8” bulkhead standard |
| Ingress Protection | IP55 |
