Explo Trainer
User’s Manual
Version 1.1 | 18/06/19
Page 2
General description
The Explo Trainer has been developed to safely train the use of a four-gas-meter in explosion hazard
situations. No use is made of real gases; instead, transmitters (electronic beacons) are used to simulate
a cloud of gas. As the transmitters are equipped with a field strength regulator, it is possible to simulate
both large and small clouds of gas.
The Student Unit can be adjusted to two types of sensitivity. This enables the user to simulate a large
gas cloud in an open field or in a space, and to simulate a lower, homogenous concentration of gas in a
small space.
The system is capable of simulating four different types of gas:
-
Explosive gas (%LEL)
-
Oxygen (O
2
)
-
Hydrogen Sulfide (H
2
S)
-
Carbon Monoxide (CO)
The trainee’s gas meter (Student Unit) measures the strength of the signal of the
transmitters, thus simulating one of the four gases (selectable). An alarm sounds if the measured value
exceeds the preset alarm value.
The instructor also receives an alarm signal if one of the alarm values is exceeded. The alarm on the
Student Unit is optical and acoustic. The optical alarm of the Instructor Unit is switched on by default, the
acoustic alarm on the Instructor Unit can be switched on and off.
Per gas type, two alarm levels can be set by the Instructor.
One gas type (user selectable on the Instructor Unit) will be simulated by the transmitters, the other three
gases can be adjusted on the Instructor Unit.
The Student Unit and Instructor Unit communicate with each other using a wireless link. The Student
Unit will always follow the Instructor Unit’s settings for the three gases that are not simulated by the
transmitters.
The set consists of:
-
1 Explo Trainer Instructor Unit
-
1 Explo Trainer Student Unit
-
3 Explo Trainer transmitters
-
1 Explo Trainer measuring probe
-
1 AC/DC Power Supply
-
1 DC Power splitter cable
-
1 User Manual
