Manual
4
Safety symbols
Safety-related instructions the non-observance of which can cause damage to the device or personal
injury carry a safety symbol.
Symbol
Designation / description
General safety symbol
Non-observance can cause personal injury and/or damage to the device.
Warning of electric voltage
Non-observance can cause electric shocks.
2 Specifications
2.1 Technical specifications
Sensor unit
Measured gas
carbon dioxide (CO
2
): 0 ... 50,000 ppm (5 %) (vol.) NDIR sensor
Temperature (gas /
environment)
0 ... +45 °C
Supply of gas samples
by diffusion
Alarm contacts
- 1 potential-free normally open contactor to control external devices
by releasing alarm 1
- switching power: 30 V DC / 250 V AC, max. 2 A
Alarm thresholds
Alarm 1
0.5 / 1 / 1.5 / 2 %
Alarm 2
1.5 / 2 / 2.5 / 3 / 3.5 / 4 %
Menu items
Function test of connection between sensor unit and remote display
unit, calibration, switching between °C and °F, alarms 1, 2 and factory
default settings
Display elements
- 4-digit digital display for measured gas concentration within range
0 ... 9999 ppm
- 3-digit digital display for measured gas concentration within range
1 ... 5 %
- additional 3-digit digital display for measurement and temperature in
°C and °F
- LEDs for operation, alarms 1, 2 and monitoring of voltage supply
Operating elements
Reset, menu selection, Enter
Safety
continuous self-surveillance of temperature range, sensor life,
implausible values, EEPROM system, internal data transfer
Enclosure
plastic, IP 54, splash-water proof
Voltage Supply
Mains adaptor 100 ... 240 V AC, 50 / 60 Hz
Diameters
168 x 125 x 47 mm (without connections)
