Electrical Characteristics. TSI Quest Quest Environmental Monitor EVM Series, EVM-7

122 Specifications

Electrical Characteristics

Electrical Characteristics

Battery life Approximately 8+ hours of continuous operation at normal operation under reference to environmental conditions when full capacity batteries are installed.

Battery pack Rechargeable Lithium-Ion

External DC power input 10 to 16 Volt Power Inlet (Nominal 12VDC) 1.5A

Power adapter

Memory capacity

Universal AC adapter 100 to 240 VAC; 50-60 Hz

2 MB – over 24 hours at 15 second logging interval

Environmental effects

The typical time interval needed to stabilize after changes in environmental conditions is 5 minutes for each 10ºC change.

Operating Conditions Temperature: 0 ºC to + 50 ºC (32 ºF to 122 ºF)

Pressure Range: 65 KPa to 108 kPa

Storage Conditions

Relative Humidity Range: 10% to 90%, Non-Condensing

Temperature: -20 ºC to + 60 ºC (-4 ºF to + 140 ºF)

Relative Humidity Range: 0 to 95%, Non-Condensing

Battery: Insure battery is re-charged every 6 months during long-term storage.

Physical characteristics

Size and weight

Weight

Housing

Display size

Backlighting

Keys

19 cm x 19 cm x 7 cm (7.5” x 7.5” x 2.75”)

1.3 kg (2.9 lb)

Static dissipative ABS-Polycarbonate

128 x 64 pixel display that measures 6 cm x 4.8 cm (2.4 in. x 1.9 in.)

Manual setting

Five keys have dedicated control functions, another five are primarily used for selection and navigation, and another four provide variable functions when they are defined in the display (soft keys). Audible (beep) feedback

Measurements units

Particulates

Carbon Dioxide

Relative Humidity

Temperature

Toxic Gas

VOCs

Air Velocity mg/m 3 ppm

%

ºC or ºF ppm (Option) (Using one of the toxic sensors indicated in “Toxic Sensors”) ppm or ppb (Options) (Using PID – 10.6eV Photo Ionization Detector) m/s or m/ft (Options) (Using external air probe accessory)

EVM Series User Manual