We inventory the following Turner Designs inline fluorometers:
LITTLE DIPPER 2™ IN-LINE FLUOROMETER
OVERVIEW
The Little Dipper™ 2 is an accurate, single-channel, light industrial fluorometer which installs directly into industrial process streams. It provides a 4 – 20 mA signal output proportional to the concentration of the fluorophore being measured. The Little Dipper 2 is a rugged, 24/7 sampling device that provides maximum performance, minimal maintenance, and solid state reliability. It can be used with data collection systems to monitor and control the level of treatment chemicals for industrial applications.
Patent Number 7,099,012
PRODUCT HIGHLIGHTS
- Improved turbidity and dissolved iron rejection
- Dynamic Range:
- <1 to 300 ppb typical for PTSA
- <1 to 300 ppb typical fluorescein
- Sensitivity: <1 ppb typical
- Simple calibration
- Solid state fluorometer uses LED/photodiode technology, no moving parts
- Customizable optics: (365 – 1100 nm)
Little Dipper 2 Performance Specifications
| Dynamic Range | < 1 to 300 ppb typical for PTSA
< 1 to 100 ppb typical for fluorescein |
| Sensitivity | < 1 ppb typical |
Little Dipper 2 Electrical Specifications
| Power Draw | 0.80 W @ 12 VDC (1.0 W maximum) |
| Input Voltage | 8-30 VDC |
| Signal Output | Signal Output 4-20 mA |
| Warm up time | 5 seconds |
Little Dipper 2 Physical Specifications
| Material | PVC – Type I, machined plastic |
| Weight | 4.4 ounces (125 g) |
| Length | 8.63 inches (21.9 cm) |
| Housing Diameter | 1.3 inches (3.3 cm) |
| Diameter at Flange | 1.72 inches (4.4 cm) |
| Temperature | 0 – 50◦ C |
Mounting Tee Physical Specifciations
| Material | PVC – Type I, molded plastic |
| Dynamic Pressure | 100 PSI |
| Threading | 1 inch (NPT) |
| Length | 3.30 inches (8.4 cm) |
HANDHELD LITTLE DIPPER™ FLUOROMETER
OVERVIEW
The Handheld Little Dipper is a small, lightweight, highly durable handheld fluorometer ideal for quick measurements in the field. Two versions are available for cooling tower and boiler system applications. Simple to operate, the Handheld Little Dipper is a perfect tool for system verification.
2850-000-A – 2850-000-A Handheld Little Dipper with PTSA Channel
2850-000-F – Handheld Little Dipper with Fluorescein Channel
PRODUCT HIGLIGHTS
- Dustproof, watertight, highly durable Dynamic Range:
- Small size easily fi ts in shirt or jacket pocket
- >10,000 measurements per AA battery set
- Single-point (100 ppb) calibration
- 10 bit resolution
- 5 second warm up
- Low maintenance field fluorometer
Handheld Little Dipper Specifications
| Linear Range: | 0-200 ppb typical for fluorescein
0-200 ppb typical for PTSA |
| Sensitivity: | 1ppb typical for fl uorescein and PTSA |
| Temperature: | 41o – 104oF (5o – 40oC) |
| Warm up time: | 5 seconds |
| Case: | IP 67 standard; dustproof/waterproof |
| Power: | 2 AA batteries |
| Light Source: | LED |
| Detector: | Photodiode |
| Weight: | 4.3 oz; 120 g |
| Size: | 8.9”x 2”x 1.75”; 22.6 cm x 5.1 cm x 4.5 cm |