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 35 years of optical measurement expertise has allowed HF scientific to become a leader in regulatory reporting turbidimeters. The HF scientific MicroTOL Online Turbidimeter has been specifically designed to meet regulations of the EPA and ISO 7027. Features include fast and easy calibration, verification in seconds, low maintenance, fail safe design which ensures your instrument is always reading accurately, bubble rejection system, automatic continuous ultrasonic autoclean system (except MicroTOL #2 & #5 models), and a data acquisition software system that allows logging and data storage for multiple turbidimeters.
No need to monitor turbidity greater than 10NTU?
HF scientific has added four new low range models, the new 0.02-10NTU models #5 (White light and IR) and 0.02-10NTU models #6 (White light and IR) that are perfect for applications such as drinking water where a measurement range greater than 10NTU is not needed. Calibration points are 0.02, 1.0 and 10NTU.
Features
- Fast and easy calibration
Verification in seconds while a complete primary calibration can be completed in less than 5 minutes
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Low volume sample chamber
Low volume sample chamber (30ml) reduces calibration costs and provides quick response times
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Low maintenance fail safe design
Simple modular design - Easy to use and service
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Bubble rejection system
Eliminates bubbles without delaying the response time
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Affordable
Modular microprocessor based technology ensures high quality at the industry's lowest price
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Autoclean (except MicroTOL 2 and 5)
Automatic continuous ultrasonic autoclean allows for the first EPA 180.1 accepted automatic cleaning online turbidimeter
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Made in the USA
Optional Features
- Online software
Allows logging, comparisons, graphs and data acquisition for multiple online turbidimeters into a PC
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Remote display
Allows remote monitoring up to 500 feet away
Specifications
| Measurement principle |
Nephelometry (90°) |
| Range |
Auto ranging from 0.02-10, 0.02-100, and 0.02-1000 NTU depending on model |
| Resolution |
0.0001 Selectable |
| Accuracy |
2% of reading or ±0.02 below 40 NTU (0-500 NTU) |
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5% of reading above 40 NTU (500-1100 NTU) |
| Response time |
Adjustable (5 to 500 seconds) 0 to 1000 NTU |
| Standard outputs |
4-20 ma galvanic isolated or RS-485 |
| RS-485 protocols |
Modbus, HF simplebus, HF Online interface |
| User alarms |
2 user selectable high/low alarms |
| Light source |
White light or infrared (850nm LED) |
| Operating temperature |
0°-50°C (32° to 122°F) |
| Input pressure |
1 - 200psi (built in regulator set at 15psi) |
| Enclosure |
NEMA 4X, IP66 |
| Display |
Multiline custom LCD (backlight option) |
| Certifications |
USEPA, ISO 7027, CE approved, ETL Listed to UL 3111-1 and ETL certified to CSA 22.0 No. 1010-1-92 |
Literature and Specifications
Operators Manual
Chlorine Pocket Photometer Instruments and Accessories
Instruments
| Model |
Description |
| 20053 |
MicroTOL 2 instrument, white light , 0 - 1000 NTU |
| 20054 |
MicroTOL 2 instrument, Infrared , 0 - 1000 NTU |
| 20055 |
MicroTOL 3 instrument, white light , 0 - 100 NTU, Autoclean |
| 20056 |
MicroTOL 3 instrument, Infrared , 0 - 100 NTU, Autoclean |
| 20063 |
MicroTOL 4 instrument, white light , 0 - 1000 NTU, Autoclean |
| 20064 |
MicroTOL 4 instrument, Infrared , 0 - 1000 NTU, Autoclean |
| 40060 |
MicroTOL 5 instrument, white light, range 0.02-10 NTU |
| 40061 |
MicroTOL 5 instrument, Infrared, range 0.02-10 NTU |
| 40070 |
MicroTOL 6 instrument, white light, range 0.02-10 NTU with ultrasonic autoclean |
| 40071 |
MicroTOL 6 instrument, Infrared, range 0.02-10 NTU with ultrasonic autoclean |
Accessories
| Model |
Description |
| 02053 |
Electronic service module MicroTOL 2 WL (also will retrofit to MicroTOL 1 WL) |
| 02054 |
Electronic service module MicroTOL 2 IR (also will retrofit to MicroTOL 1 IR) |
| 02055 |
Electronic service module MicroTOL 3 WL |
| 02056 |
Electronic service module MicroTOL 3 IR |
| 02063 |
Electronic service module MicroTOL 4 WL |
| 02064 |
Electronic service module MicroTOL 4 IR |
| 19778 |
Inline flow regulator (1L/min) Recommended for pressurized system |
| 19787 |
Converter RS-485 to USB. For use with HF Online Software |
| 19945A |
Flow Alarm for MicroTOL (factory installed) |
| 20106 |
Stilling / Bubble Removing Chamber |
| 20111 |
24 volt Power Supply for MicroTOL (factory installed) |
| 20779S |
Power Cord 120VAC |
| 20815 |
22 gauge RS-485 two wire twisted pair shielded communication cable (sold per foot) |
| 21045A |
Inductive Isolator Option for 4-20mA |
| 21201 |
Source/Drain Tubing - sold per foot |
| 21201S |
Source/Drain Tubing - 50 foot roll |
| 21396S |
Lamp assembly for infrared models |
| 21555R |
Replacement Desiccant Pouch |
| 24017S |
Junction Box Power Supply Assembly |
| 24082S |
Lamp assembly for white light models |
| 24165S |
Flow through assembly, nylon (does not include cuvette) |
| 24166S |
Ultrasonic cuvette assembly - MicroTOL 3, 4 and 6 |
| 24306S |
Inline pressure regulator |
| 39824 |
ProCal Primary Calibration Standard - 100 NTU |
| 39825 |
ProCal Primary Calibration Standard - 10 NTU |
| 39950 |
ProCal Primary Calibration Kit - 0.02, 1.0 and 10 NTU (for MicroTOL 5 and 6) |
| 39953 |
ProCal Calibration Kit .02,10, and 100NTU (for MicroTOL 3) |
| 39957 |
ProCal Primary Calibration Kit, Full Range, .02, 10, and 1000 NTU (for MicroTOL 2, 4 and Micro100) |
| 50036 |
Flow through cuvette - MicroTOL 2 (3 pack) |
| 50040 |
Formazin Stock Solution Kit - Primary Calibration - each kit contains: 32 onces of 4000 NTU Formazin, one gallon 0.02 NTU Reference Standard, four cuvettes with indexing light shields, three pipettes and instruction manual |
| 50121 |
Flow Through Assembly, high temperature, 0 - 90°C (32 - 194°F) |
| 50125 |
Flow through assembly (includes non ultrasonic cuvette) |
| 70914 |
Formazin Stock Solution - 4000 NTU in a 16 oz bottle |
| 98877 |
Demo Stand for MicroTOL |
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