Technical data – YSI 900 Chlorine Colorimeter User Manual
Page 20
20
technical Data
instrument:
single
wavelength, direct reading colorimeter
light source:
LEDs,
interference filters (IF) and photosensor in transparent
cell chamber. Wavelength specifications of the IF:
530 nm = 5 nm
Wavelength accuracy: ± 1 nm
photometric accuracy*: 3% FS (T = 20° C – 25° C)
photometric resolution: 0.01 A
power supply:
4 batteries (AAA/LR 03)
lifetime: approx. 17 hours or 5000 tests
auto-OFF:
instrument automatically turns off 20 minutes after last keypress
Display:
backlit LCD (on keypress)
storage:
internal ring memory for 16 data sets
interface:
IR interface for data transfer
time:
real time clock and date
Calibration:
user and factory calibration
resetting to factory calibration possible
Dimensions:
155 x 75 x 38 mm (LxWxH)
Weight:
approx. 260 g (incl. batteries)
ambient conditions:
temperature: 5–40°C
rel. humidity: 30–90% (non-condensing)
Waterproof:
floating; IP 68 (1 hour at 0.1 meter)
Ce:
Certificate for Declaration of CE-Conformity
*measured with standard solutions
To ensure maximum accuracy of test results, always use the reagent systems supplied by the
instrument manufacturer.