The Rapidox 1100Z provides continuous oxygen measurement in industrial processes and controlled atmospheres.
Advantages
Zirconia accuracy at low ppm
The zirconia cell spans 1 ppm to 30 % O2 with ±1 % accuracy of the actual concentration and a 90 % response in about 4 s. It suits inert and aggressive industrial atmospheres, with a life expectancy above 17,500 h.
Operational in minutes
Warm-up takes 1-2 minutes and calibration accepts up to five user-selectable gas compositions; internal pressure correction keeps readings accurate.
Closed-loop atmosphere control
Two programmable alarm relays, 0-10 V and 4-20 mA outputs and RS232 communications (RS485 optional; Modbus RTU/Ethernet) are standard. The PFC and RSO variants drive a proportional valve or a solenoid directly from the oxygen reading.
Flexible installation
Bench use or panel mounting, with gas fittings at the front or rear. Sampling runs on a variable-speed pump (0-1.2 L/min) or an optional vacuum ejector; the ZR3 variant samples three points in sequence.
Software included
The package covers full instrument control, live graphing and Excel-compatible logging, on any mains voltage from 90-260 V AC and with password protection.
Applications
- Inert-gas blanketing and glove boxes.
- Metal heat treatment, PCB production and manufacturing.
- Combustion, emissions and chemical processes.
- Food, medical and research applications.
About the product
Beyond the standard model, the range offers the ZR3 three-channel multiplex version, the PFC closed-loop version with 4-20 mA PID signal and the RSO version with a remote 24 V solenoid output. The instrument holds UL/ETL certification UL-61010-1 and complies with EMC Directive 2004/108/EC.
The bench unit measures 150 mm × 253 mm × 272 mm and weighs 3.5 kg (4 kg with bezel). Available accessories: calibration kit and service, thermal printer, multiplex sampling system, gas recovery bag and gas filters.
Technical specifications
| O2 range | 1 ppm to 30 % (zirconia sensor) |
| Accuracy | ±1 % of the actual concentration; 90 % response in approx. 4 s |
| Sensor life | > 17,500 h |
| Outputs | 0-10 V, 4-20 mA, RS232/RS485, Modbus RTU/Ethernet |
| Warm-up | 1-2 min |
| Format | Bench or panel mount, 3.5 kg |
Frequently asked questions
Why a zirconia sensor?
It delivers fast, accurate low-ppm oxygen analysis and withstands inert and aggressive industrial atmospheres, with a life above 17,500 h.
Can the analyser control the atmosphere automatically?
Yes. The PFC variant modulates a proportional valve through a 4-20 mA PID signal and the RSO variant switches a solenoid via a 24 V output.
Can several points be sampled?
Yes. The ZR3 multiplex version samples three gas streams in sequence or at set intervals.
How are results documented?
The supplied software provides live graphing and Excel-compatible data logging.
