Section 1 Specifications - Hach sc100 1720E Instrument Manual

Section 1
Method of Detection
Range
Accuracy
Linearity
Resolution (Displayed)
Repeatability
Response Time
Sample Flow Required
Sensor Storage
Temperature
Operating Temperature
Sample Temperature Range
Operating Humidity
Power Requirements
Sample Inlet Fitting
Drain Fitting
Signal Average (Filter) Time
Sensor Dimensions
Sensor Cable Length
Sensor Cable Rating
Mounting Options
Shipping Weight
4
Specifications
Specifications are subject to change without notice.
Table 1 Turbidimeter Specifications
Nephelometric light scatter at 90 degrees relative to the incident light beam. The incident light
beam is composed of a tungsten filament light source with a color temperature between 2200 and
3000K.
0.001–100 nephelometric turbidity units (NTU)
± 2% of reading or ± 0.015 NTU (whichever is greater) from 0 to 40 NTU;
± 5% of reading from 40 to 100 NTU
Better than 1% 0–40 NTU on formazin. Allows for accurate calibration at high turbidity values.
Temperature dependent ±2 °C.
0.0001 NTU up to 9.9999 NTU; 0.001 NTU from 10.000 to 99.999 NTU
Better than ±1.0% of reading or ±0.002 NTU, whichever is greater for each range.
For a full-scale step change, initial response in 1 minute, 15 seconds. Varies with flow rate,
see the table below. The response time is also dependent on the signal averaging time, which is
user selectable.
% Step Change
10 1¼ minutes
50 2 minutes
90 3½ minutes
99 4 minutes
200 to 750 mL/minute (3.2 to 11.9 gal/hour)
–20 to 60 °C (–4 to 140 °F); 95% relative humidity, non-condensing.
0 to 50 °C (32–122 °F) for single sensor system, 0 to 40 °C (32–104 °F) for two sensor system
0 to 50 °C (32–122 °F)
5 to 95% non-condensing
12 V dc ±5%, 12.5 watts maximum
¼-inch NPT female. ¼-inch compression fitting (supplied)
½-inch NPT female, ½-inch hose barb (supplied)
no averaging, 6, 30, 60, and 90 seconds, user selectable. Default is 30 seconds.
Turbidimeter body and cap: 25.4 x 30.5 x 40.6 cm (10 x 12 x 16 inches)
2 m (6.6 ft); Optional 7.62 m (25 ft) extension cable. Maximum cable length is 9.62 m (31.6 ft).
Cable: 105 °C, 300 V, PVC jacket
Wires: 22 AWG, PVC jacket
Wall; floor stand
1720E Turbidimeter and Controller: 6.31 kg (13.5 lb); 1720E Turbidimeter only: 4.71 kg (10 lb)
Flow Rate
750 500
1½ minutes
2½ minutes
3½ minutes
5 minutes
250
2½ minutes
6 minutes
9 minutes
12 minutes