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Hach 1720E User Manual

Hach 1720E
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Catalog Number 6010018
1720E Low Range Turbidimeter
USER MANUAL
04/2016, Edition 8

Table of Contents

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Hach 1720E Specifications

General IconGeneral
Resolution0.001 NTU
Sample Temperature0 - 50 °C (32 - 122 °F)
Operating Temperature0 - 50 °C (32 - 122 °F)
DetectorSilicon photodiode
Weight4.5 kg (10 lbs)
Measurement PrincipleNephelometric
Power Requirements100-240 VAC, 50/60 Hz
Output4-20 mA
Light SourceLED
Enclosure RatingNEMA 4X (IP66)

Summary

Section 1 Specifications

Accuracy

Details accuracy specifications for the turbidimeter.

Linearity

Details linearity specifications for the turbidimeter.

Repeatability

Details repeatability specifications for the turbidimeter.

Response Time

Provides response time data based on flow rate.

Sample Flow Required

Specifies the required sample flow rate for operation.

Storage Temperature

Specifies the acceptable storage temperature range.

Operating Temperature

Specifies the acceptable operating temperature range.

Sample Temperature Range

Specifies the acceptable sample temperature range.

Operating Humidity

Specifies the acceptable operating humidity range.

Power Requirements

Details the power requirements for the instrument.

Sample Inlet Fitting

Describes the type of sample inlet fitting used.

Signal Average Time

Lists available signal averaging time options.

Dimensions

Provides the physical dimensions of the turbidimeter.

Sensor Cable Length

Specifies available sensor cable lengths.

Mounting Options

Lists available mounting options for the instrument.

Shipping Weight

Details the shipping weight of the product.

Calibration Methods

Outlines the available calibration methods.

Verification (Wet) Method

Describes the wet verification method.

Verification (Dry) Method

Describes the dry verification method.

Recommended Maintenance

Lists recommended maintenance tasks.

Installation Environment

Details the suitable installation environment.

Primary Compliance Method

Specifies the primary compliance method used.

Limit of Detection

States the limit of detection for the instrument.

Section 2 General Information

Safety Information

Provides crucial safety information for the user.

Theory of Operation

Explains the fundamental working principle of the turbidimeter.

Section 3 Installation

Connecting/Wiring the Sensor to the sc100 Controller

Instructions for connecting the sensor to the controller.

Hard-wiring a sc Sensor to the sc100 Controller

Detailed steps for hard-wiring the sensor.

Connecting the Sensor to the sc1000 Controller

Instructions for connecting the sensor to the sc1000 controller.

Turbidimeter Installation Information

General guidance for installing the turbidimeter body.

Mounting the Turbidimeter Body

Steps for securely mounting the turbidimeter body.

Installing the Head Assembly

Procedure for correctly installing the sensor head assembly.

Installing a Sample Line

Steps for properly installing the sample line.

Sample Connections

Details on making sample inlet and drain connections.

Section 4 System Startup

General Operation

Overview of initial system operation and setup.

Starting Sample Flow

Guidance on initiating sample flow and stabilization.

Section 5 Operation

Sensor Setup

Instructions for configuring sensor settings and naming.

Sensor Data Logging

Details on configuring and managing data logging.

Sensor Diagnostics Menu

Information on accessing diagnostic error and warning lists.

Sensor Setup Menu

Explains the various options within the sensor setup menu.

Sensor Calibration and Verification

Overview of calibration and verification procedures.

User-prepared Calibration

Step-by-step guide for user-prepared calibration.

Calibration with StablCal®

Instructions for calibrating using StablCal standards.

Instrument Verification

Methods for verifying instrument performance.

Dry Verification

Procedure for performing dry instrument verification.

Wet Verification

Procedure for performing wet instrument verification.

Calibration and Verification History

How to access and interpret calibration/verification logs.

Offset Feature

Explanation of the clean water offset feature.

Setting the Offset

Steps to enter and adjust the offset value.

Section 6 Maintenance

Maintenance Schedule

Outlines routine maintenance tasks and frequency.

Removing a Sensor from the System

Procedure for safely removing a sensor.

Reinstalling a Sensor on the System

Steps for reinstalling a sensor after maintenance.

Cleaning

Detailed instructions for cleaning instrument components.

Cleaning the Photocell Window

Specific steps for cleaning the photocell window.

Cleaning the Turbidimeter Body and Bubble Trap

Guide to cleaning the body and bubble trap.

Replacing the Lamp Assembly

Procedure for replacing the lamp assembly.

Section 7 Troubleshooting

Error Codes

Lists and defines error codes displayed by the sensor.

Warnings

Lists and defines warning codes displayed by the sensor.

General Troubleshooting

Provides common issues, causes, and corrective actions.

Additional Malfunctions Not Recorded in the Event Log

Lists malfunctions not captured in the event log.

Event Codes

Explains event codes and their meanings.

Section 8 Replacement Parts and Accessories

Replacement Items

Lists essential replacement parts for the instrument.

Optional Accessories

Lists available optional accessories for the turbidimeter.

Calibration and Verification Standards and Accessories

Details standards and accessories for calibration.

Section 9 Compliance Information

Product Safety

Information regarding product safety standards and certifications.

Immunity

Details EMC immunity standards the equipment complies with.

Emissions

Information on radio frequency emissions compliance.

FCC PART 15, Class “A” Limits

FCC compliance details for Class A digital devices.

Appendix A Modbus Register Information

Table 8 Sensor Modbus Registers

Lists Modbus registers for sensor data.

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