Dräger Polytron® 8720 IR
TF:
007013-HW-Dräger-013
Overview
The Dräger Polytron® 8720 IR is an explosion-proof transmitter designed for precise carbon dioxide detection in both percent volume and ppm ranges. It features the durable infrared Dräger PIR 7200 sensor, capable of withstanding submersion without damage.
| Type | Transmitter |
|---|---|
| Measuring Principle | Infrared |
| Response time | <= 8 seconds |
| Cable entry | M20 or 3/4" NPT |
| Display | Yes |
| Intrinsic Safety | No |
| Flameproof | Yes |
| Increased Safety | Yes |
| SIL | SIL 2 (IEC 61508-1-3) |
| 4-20 mA | Yes |
| Bus | Yes |
| HART® | Yes |
Technical Data
| Power Supply | 10 to 30 VDC, 3-wire |
|---|---|
| Temperature (operation) | -40°C - 77°C |
| Humidity | 0 to 100% r.h., non-condensing |
| Pressure (hPa) | 700 - 1300 |
| Dimensions (H × W × D) | 28x15x13 cm |
| Weight | 5.7 Kg |
| Housing Material | Epoxy coated copper-free aluminum or stainless steel SS316 L |
| Degree of protection (IP class) | IP65/66/67 |
Approvals
| ATEX | Yes |
|---|---|
| IECEx | Yes |
| UL | Yes |
| CSA | Yes |
| CE marking | Yes |
| GOST (EAC) | Yes |
| Performance approval | No |
| Shipping approval (MED) | yes |
Offering 4–20 mA output with relays plus HART®, Modbus, and Fieldbus communication, the Polytron® 8720 IR integrates easily with most control systems. Its robust design and advanced infrared sensing ensure reliable CO₂ monitoring in demanding industrial environments.