Technical Data - Hach BOD Direct plus Basic User Manual

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9

Technical data

9.1 BOD Measurement System
Type
Measuring principle
Measurement ranges [mg/l O
Applications
Display
Automatic measurement buffer
Autostart
Power supply, batteries
Power supply, external
Time
Interfaces
Dimensions, without stirrer
drive, W x D x H
Weight, with batteries and
empty bottles, without mains
adapter plug and stirrer drive
Environmental conditions
Test approvals
9.2 Stirrer unit
Type
Number of positions
Stirring output
Speed
Dimensions (W x D x H) [mm]
Stirring position spacing
Weight (stirrer drive)
Housing material
Environmental conditions
Operating voltage
Protection class
Test approvals
32
BOD Direct plus
Respirometric; electronic pressure sensor
] 0 40, 0 80, 0 200, 0 400, 0 800, 0 2000, 0 4000
2
BOD , BOD , OECD 301 F, etc.
5 7
Graphic display, 16 grey levels, 240 pixels wide, 128 pixels high
First day - hourly
Second day - every 2 hours
Third day and later - every 24 hours
Can be switched off; controlled by pressure drop in the bottle
3 alkali-manganese cells, type C / LR14
15 V DC via supplied mains adapter plug, low-voltage barrel
connector, max. power requirement 600 mA
Real-time clock, supported by the batteries if the device is not
provided with an external power supply
USB host (only for USB stick), USB device, SD card
182 mm x 376 mm x 213 mm
4139 g
2 – 40°C, 5 – 80 % relative air humidity, non-condensing
CE
Inductive stirring system
6
7 W
320 rpm, brief centring phase every 40 s
270 x 180 x 25
88 mm
1960 g
PVC
-10°C to +56°C, 95 % relative air humidity
15 V DC
IP 68
CE
BOD Direct plus_BMU_2 03/2016