Pac III Gas Detection Instruments
Our Third Generation of Personal Gas Detection Instruments

Pac = Personal Air Control

Pac III Features:

- the ability to use any of our
14 different intelligent DrägerSensors,
- can measure up to 35 different toxic gases and oxygen,
- a durable RFI-shielded housing,
- three versions Pac III B (Basic), Pac III S (Standard), and Pac III (Extended) with advanced capabilities.
The Sensors
The sensors are plug-in type precalibrated sensors with the sensor data being programmed into the EEPROMs. The sensor software is protected. The instrument automatically recognizes sensor type, measuring range and alarm levels thus enabling the user simply to connect the sensors and start measurement after a respective warm-up period.

The issue of cross sensitivities in regards to electrochemical sensors is important. By their nature, electrochemical sensors often exhibit sensitivity to more than one gas. We have greatly reduced inherent cross-sensitivities in DrägerSensors by carefully selecting a so-called bias voltage. Except for a few examples, this cross-sensitivity is positive. This means that you are always on the safe side because you will receive an early warning.

In those cases where you wish to avoid cross-sensitivities, we offer a wide selection of filters. Due to defined cross-sensitivities some of these sensors can be recalibrated to other gases.

 The following 14 sensors are available:

 

· Oxygen (O2 ),
· Carbon monoxide (CO),
· Hydrogen sulphide (0-100 ppm H2S),
· Hydrogen sulphide (0-500 ppm H2S),
· Sulfur dioxide (SO2),
· Nitrogen monoxide (NO),
· Nitrogen dioxide (NO2),
· Ammonia (NH3),
· Hydrogen cyanide (HCN)
· Chlorine (Cl2)
· Phosphine (z.B. PH3)
· Carbon dioxide (CO2)
· Ethylene oxide (z.B. EO / C2H4O)
· Phosgene (COCl2)

 

Technical Data
Pac III
Dimensions (W x H x D) 66 x 110 x 32 mm
Weight 185 g
Power supply NiCd battery (200 h)
9 V alkaline battery (600 h)
Lithium battery (1100 h)
Display digital
- measured data
- error
- alarms
- STEV/TWA 2)
- overrange
Alarms visible and audible (> 95 dB(A))
- 2 TWA/TLV alarms
- TRGS 402 alarm 2)
- Low Bat
- device failure
Data logger 8000 measured values 2)
Outputs digital
Expected sensor service life up to 3 years
Ambient conditions during operation -20 °C...+55 °C T41)
-20 °C...+40 °C T6
700 hPa-1300 hPa
10-95 % r.h.
Ex-approval intrinsic safety IP 64
CENELEC-BVS
EEx ia IIC T4/T6
EEx ia I