Apollo ORB-OP-12001-APO is the Orbis Optical Smoke Detector, a conventional two-wire detector head from Apollo Fire Detectors. It works on the light-scatter principle, and its chamber measures back-scattered as well as forward-scattered light, which Apollo says improves its response to black smoke. Apollo recommends it as a general-purpose smoke detector for early warning in most areas, and notes optical detectors suit smouldering fires and escape routes.
Specifications
| Detection principle |
Photo-electric detection of light scattered by smoke particles |
| Sampling |
Once every four seconds |
| Operating voltage |
8.5 to 33 V DC, two-wire supply, polarity sensitive |
| Average quiescent current |
95 µA at 24 V |
| Alarm current |
20 mA at 12 V; 40 mA at 24 V |
| Alarm load |
600 Ω |
| Holding voltage / current |
5 to 33 V; 8 mA minimum holding current |
| Alarm reset |
Below 1 V; reset time one second |
| Power-up time |
Less than 20 seconds |
| Alarm indicator |
Integral, 360° visibility |
| Remote LED output |
1.2 kΩ connected to negative supply |
| Operating and storage temperature |
-40 °C to +70 °C (-40 °F to 158 °F) |
| Humidity |
0% to 98% RH, no condensation or icing |
| Dimensions |
97 mm diameter x 31 mm high (3.82 in x 1.22 in) |
| Weight |
75 g |
| Housing |
White flame-retardant polycarbonate; tin-plated stainless steel terminals |
| Approvals for this part number |
CPR, LPCB, VdS, BOSEC, SBSC, FG (EN 54-7 standard listed) |
Compatibility and installation notes
- Detector head only; it fits an Orbis base. Apollo's head installation guide covers fitting heads to Orbis TimeSaver bases, including the optional head locking feature.
- StartUp check: with correct polarity, the red LED flashes once per second for four minutes after power-up; a smoke or heat test can be done during that window.
- A locked head is released with a 1.5 mm hexagonal driver (Apollo part 29600-095) through the small hole in the detector face.
- FasTest runs a functional test in four seconds; the yellow DirtAlert LED flags a detector that has reached its drift-compensation limit.
- The approvals Apollo lists for this part are European marks; no UL or ULC listing is stated in the documents used here.
Related models
Documents
Specifications from Apollo data sheet PP2632/2019/Issue 1 (Orbis Optical Smoke Detector) and Orbis Detector Head Installation Guide 39214-211 Issue 2. Manufacturer specifications are subject to change.
