Hach-Lange 2100 N Laboratory Turbidimeter User Manual - Manual (Page 7)

Specifications
Specifications are subject to change without notice.
Specification Details
Measurement method Nephelometric
Regulatory Meets EPA Method 180.1
ASTM D7315 - Standard Test Method for
Determination of Turbidity Above 1 Turbidity Unit (TU)
in Static Mode
ASTM D6655 - Standard Test Method for
Determination of Turbidity Below 5 NTU in Static Mode
Light source Tungsten filament lamp
Measurement modes NTU, NEPH (Nephelo) and EBC
Range NTU (Ratio on, manual range): 0–0.999, 0–9.99, 0–
99.9, 0–4000
NTU (Ratio on, auto range): 0–4000 auto decimal
NTU (Ratio off): 0–40.0
Nephelo (Ratio on, manual range): 0–9.99, 0–99.9, 0–
26,800
Nephelo (Ratio on, auto range): 0–26,800 auto
decimal
Nephelo (Ratio off): 0–268
EBC (Ratio on, manual range): 0–0.999, 0–9.99, 0–
99.9, 0–980
EBC (Ratio on, auto range): 0–980 auto decimal
EBC (Ratio off): 0–9.8
Accuracy 1, 2 Ratio on: ±2% of reading plus 0.01 NTU from 0–
1000 NTU, ±5% of reading from 1000–4000 NTU
based on formazin primary standard
Ratio off: ±2% of reading plus 0.01 NTU from 0–
40 NTU (under reference conditions
3 )
Resolution Turbidity: 0.001 NTU/EBC, Nephelo (on lowest range)
Specification Details
Repeatability ±1% of reading or 0.01 NTU, whichever is greater
(under reference conditions)
Response time Signal averaging off: 6.8 seconds
Signal averaging on: 14 seconds (when
10 measurements are used to calculate the average)
Stabilization time Ratio on: 30 minutes after start-up
Ratio off: 60 minutes after start-up
Reading modes Manual or auto range, signal averaging on or off, Ratio
on or off
Power requirement 115–230 VAC, 50/60 Hz (automatic power selection)
28 W maximum
Pollution
degree/installation
category 2; II
Protection Class 1
Operating conditions Temperature: 0 to 40 °C (32 to 104 °F)
Relative humidity: 0–90% at 25 °C, 0–75% at 40 °C,
noncondensing
Altitude: 2000 m (6560 ft) maximum
Indoor use only
Storage conditions –40 to 60 °C (–40 to 140 °F), instrument only
Interface RS232C serial interface by way of DB9 subminiature
D-shell connector for data output to computer or
printer, and data input (command). No handshaking.
Air purge Dry nitrogen or instrument grade air (ANSI MC 11.1,
1975)
0.1 scfm at 69 kPa (10 psig); 138 kPa (20 psig)
maximum
Hose barb connection for
1 /
8
-inch tubing
English 5