Hach 2100Q User Manual

4.2 Display description
The measurement screen shows the turbidity, unit, calibration status,
date and time, operator ID (if setup) and sample ID (if setup). Refer to
Figure 5.
Figure 5 Single screen display
1 Operator identification 9 NTU (Nephelometric Turbidity
Unit) or FNU (Formazin
Turbidity Unit)
2 Sample identification 10 Reading mode: Rapidly
Settling Turbidity (Target
icon)
3 Stability or display lock
indicator
11 Reading mode: Signal
Average (X-bar icon)
4 Calibration status indicator
(Calibration OK=pass)
12 Time
5 Calibration status indicator
(Calibration ?=fail)
13 Date
6 Parameter title 14 Read (contextual: OK, Select)
7 AC power icon 15 Options (contextual)
8 Battery icon 16 Verification calibration
8 English

Hach 2100Q Specifications

General

Range	0 - 1000 NTU
Resolution	0.01 NTU on lowest range
Detector	Silicon photodiode
Stray Light	< 0.02 NTU
Measurement Method	Nephelometry
Power Supply	4 AA alkaline batteries
Operating Temperature	0 to 50 °C
Storage Temperature	-20-60°C
Measurement Modes	Signal Averaging, Rapidly Settling Turbidity
Display	LCD
Accuracy	±2% of reading plus stray light from 0 to 1000 NTU
Light Source	Tungsten filament lamp