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OxyGuard 1 Single channel monitor for dissolved and gaseous oxygen
High resolution photo
 Wall-Mount version |
Panel-Mount version |
The OxyGuard 1 system measures dissolved or gaseous oxygen.
Typical uses are:
- Dissolved oxygen monitoring in sewage treatment plants.
- Effluent monitoring in industry, land fill sites etc..
- Monitoring of oxygen levels in clean water, beverages, oil etc..
- The measurement of the purity of oxygen gas from oxygen generators.
- Alarm monitor for the contamination of inert or other gas by oxygen.
- Safety monitor where air could contain too low or too high oxygen levels.
OxyGuard 1 meets all of the usual demands made to such equipment, and has a galvanically isolated analogue output and three relay outputs with individual set points. The system is flexible; the user can change the range setting, choice of alarm function and analogue output type.
OxyGuard 1 comes complete with probe and accessories for several years normal use. The probe - the OxyGuard Standard Probe - is designed to last a lifetime with a minimum of maintenance!
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Technical Information
Technical Advantages
Transmitter:
- 12 measurement ranges the user can easily change the range.
- 0-20 or 4-20 mA analogue output, max. load 750 ohm.
- Power supply either 230/115 VAC or 24 VDC.
- Three relay outputs can be individually set to normally open or normally closed operation.
- Wall-mount and panel-mount versions.
- Full galvanic isolation between input and outputs.
Probe:
- Galvanic type - True zero. With built-in temperature compensation.
- Excellent long-term stability.
- No practical limit to cable length - extension can be made with any type of cable.
- Needs only very small water flow for correct measurement.
- Tough membrane can be wiped clean with cloth or paper.
- Does not need regular service or renovation.
- Wide range of armatures and fixtures - e.g. the Pioneer for use in sewage treatment plants, the Air Alarm for worker safety in areas where fluctuating oxygen levels could occur, Flow Cell etc. Ask for details.
- Wide range of accessories - e.g. the EasyCal calibrator, OxyClean compressed air cleaner etc.
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Specifications
Probe
| Dimensions: |
Diameter = 58 mm, length = 59 mm. Standard cable length = 5 m. |
| Weight: |
400 g incl. cable. |
| Principle of Measurement: |
Galvanic cell, self polarizing, self temperature compensating. |
| Operating Conditions: |
0 to 40°C, and pressure to 10 atm. or more (liquid measurements only). |
Transmitter
| Construction: |
ABS/Acrylic enclosure containing front panel with display, set point and calibration adjustments; main circuit board with power supply, terminals, electronics and relays. |
| Dimensions: |
1W: b x h x d: 175 x 235 x 85 mm. 1P: Cut-out 66 x 137 mm., depth 150 mm. |
| Weight: |
Approx. 1 kg |
| Supply: |
230/115 VAC or 24 VAC. Please specify when ordering. |
| Operating Conditions: |
-10 to +50°C. Enclosure rated IP65. |
| Output: |
0/4-20 mA. Max. load 750 ohm. Fully galvanically isolated from the input |
| Range: ppm: |
0-5.0, 0-10.0, 0-20.0 and 0-100.0 ppm. (mg/l).
% sat:, 0-50.0, 0-100, 0-200 and 0-1000 % sat,
% volume: 0-25.0, 0-50.0 and 0-100% volume, |
| Accuracy/Repeatability: |
Accuracy depends on method of calibration and reference method. Repeatability is typically better than +/- 0.5% of measured value. |
| Relay Outputs: |
2 alarm output relays, marked "HI" and "LO", with potential free changeover contacts. The relays are normally energized for fail safe operation.
One CON output - potential free changeover contact. |
Ordering Information
| OxyGuard 1W: B011W |
OxyGuard 1P: B011P |
| OxyGuard 1W for ambient air monitoring (with AirAlarm): B011WR |
| OxyGuard 1W for gas purity (with gas flow cell): B011WG |
| Portable version of OxyGuard 1W: B011T |
The equipment is delivered ready for use
Data subject to change without notice
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