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FL904
User Manual
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Hach FL900 Series, FL900, FL902, FL904, FL901 User Manual

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DOC026.53.80015
FL900 Series Flow Logger
06/2018, Edition 9
User Manual
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Table of Contents
Specifications.............................................................................................................. 3
General information.................................................................................................. 4
Safety information........................................................................................................ 4
Certification.................................................................................................................. 5
Wireless modem certification....................................................................................... 6
Cellular devices........................................................................................................... 6
Product overview......................................................................................................... 8
Product components ................................................................................................... 9
Apply power to the Logger ................................................................................... 9
Install the batteries....................................................................................................... 9
Attach an external power supply (optional)................................................................ 11
System startup.......................................................................................................... 12
Install FSDATA Desktop on a computer.................................................................... 12
Attach the logger to the computer.............................................................................. 12
Attach a sensor or external devices to the logger...................................................... 12
Attach an external module......................................................................................... 13
Attach a sampler........................................................................................................ 13
User interface ........................................................................................................... 14
Program a unit equipped with a modem........................................................ 14
Set up the wireless account....................................................................................... 14
Modbus communication....................................................................................... 20
Basic setup................................................................................................................. 20
Make a basic logger program.................................................................................... 20
Calibrate the sensor with the Cal Wizard................................................................... 21
Site installation ........................................................................................................ 22
Hang from a cable..................................................................................................... 22
Install on a wall bracket............................................................................................. 23
Maintenance .............................................................................................................. 23
Clean the instrument.................................................................................................. 23
Replace the batteries................................................................................................. 24
Replace the desiccant............................................................................................... 24
Troubleshooting ...................................................................................................... 24
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Table of Contents
Communication failure............................................................................................... 24
Replacement parts and accessories............................................................... 25
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Specifications

Specifications are subject to change without notice.
Specification Details
Dimensions (W x D x H) 25.4 x 22 x 40 cm (10.0 x 8.7 x 16.0 in.)
Enclosure PC/ABS structural foam
Environmental rating NEMA 6P/IP68 (24 hours at 1.8 m (6 ft) submersion)
Weight (model FL900) 4.5 kg (10 lb) with no batteries, 6.3 kg (14 lb) with 2 batteries and 8.2 kg (18 lb)
Operating temperature –18 to 60 ºC (0 to 140 ºF) at 95% RH
Storage temperature –40 to 60 ºC (–40 to 140 ºF)
Power requirements 8 to 18 VDC from batteries or external power source, 2.5 W max
Battery life Varies with sensor type, logging intervals, telemetry and environment.
Installation category I
Protection class III
Pollution degree 4
Sensor ports 1, 2 or 4 ports
Connectors Stainless steel connectors
Datalog channels 16 maximum
Alarms Maximum of 16 channel alarms with high/high, high, low, low/low options.
Alarm actions Start the sampler, change the log interval, change the call interval, send an e-
Logging intervals 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 or 60 minutes
Data storage Event log: 1000 events maximum in non-volatile flash memory
PC communication USB
Remote communication (optional)
with 4 batteries
For a 15 minute logging interval, with no modem, four 6 V lantern batteries at room temperature:
• Flo-tote 3 sensor 306 days
• Area Velocity sensor with AV9000 Analyzer 296 days
• Flo-Dar sensor 185 days
• Ultrasonic sensor 456 days
Note: For longer deployments use with Long Life Battery, PN 8542900.
System alarms include low battery, low RTC battery, low slate memory, slate memory full, sensor time out, sensor ID.
mail or a text message (SMS) from logger or server.
Note: SMS rates may apply. Not all alarm types may be available with all cellular carriers and service plans.
Primary and secondary intervals for dynamic logging
Sample history: 2000 sample events maximum in non-volatile flash memory
Datalog: 325,000 data points; 1128 days for 3 channels at 15-minute log intervals
RS232 (Baud rates: 9600, 19200, 38400, 57600, 115200)
Wireless modem: 3G, 4G LTE (Verizon); 3G, 4G LTE, PTCRB (USA and Canada)
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Specification Details
Protocols Modbus RTU (RS232)
Mobile-Terminated SMS
Mobile-Originated SMS
Timebase accuracy ±0.002%, synchronized every 24 hours with server software and modem
Supported sensors Flo-Dar, Flo-Dar with SVS, Flo-Tote, Rain Gauge, Ultrasonic, Submerged Area
Velocity1, Sigma 950
Sampler interface Compatible with Sigma 900 Standard, Sigma 900 Max, Hach SD900 and
AS950 to support set point sampling, flow-pacing and sample history logging
Certifications Logger: CE
Optional AC power supply: UL/CSA standards (cETLus)/CE
Modems: FCC, IC, others may be available—contact the manufacturer for more information.
Warranty 1 year
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General information

In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential damages resulting from any defect or omission in this manual. The manufacturer reserves the right to make changes in this manual and the products it describes at any time, without notice or obligation. Revised editions are found on the manufacturer’s website.

Safety information

N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including, without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent permitted under applicable law. The user is solely responsible to identify critical application risks and install appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this equipment in any manner other than that specified in this manual.

Use of hazard information

Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
D A N G E R
W A R N I N G
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation that may result in minor or moderate injury.
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special emphasis.
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This device attaches through an external module.
C A U T I O N
N O T I C E
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Precautionary labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary statement.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential injury. If on the instrument, refer to the instruction manual for operation or safety information.
This symbol indicates that a risk of electrical shock and/or electrocution exists.
This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and indicates that care must be taken to prevent damage with the equipment.
This symbol indicates radio waves.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to the user.

Confined space precautions

D A N G E R
Explosion hazard. Training in pre-entry testing, ventilation, entry procedures, evacuation/rescue
procedures and safety work practices is necessary before entering confined spaces.
The information that follows is supplied to help users understand the dangers and risks that are associated with entry into confined spaces.
On April 15, 1993, OSHA's final ruling on CFR 1910.146, Permit Required Confined Spaces, became law. This standard directly affects more than 250,000 industrial sites in the United States and was created to protect the health and safety of workers in confined spaces.
Definition of a confined space:
A confined space is any location or enclosure that has (or has the immediate potential for) one or more of the following conditions:
• An atmosphere with an oxygen concentration that is less than 19.5% or more than 23.5% and/or a hydrogen sulfide (H2S) concentration that is more than 10 ppm.
• An atmosphere that can be flammable or explosive due to gases, vapors, mists, dusts or fibers.
• Toxic materials which upon contact or inhalation can cause injury, impairment of health or death.
Confined spaces are not designed for human occupancy. Confined spaces have a restricted entry and contain known or potential hazards. Examples of confined spaces include manholes, stacks, pipes, vats, switch vaults and other similar locations.
Standard safety procedures must always be obeyed before entry into confined spaces and/or locations where hazardous gases, vapors, mists, dusts or fibers can be present. Before entry into a confined space, find and read all procedures that are related to confined space entry.

Certification

Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
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Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations: CAN ICES-3(A)/NMB-3(A).
Cet appareil numérique de classe A répond à toutes les exigences de la réglementation canadienne sur les équipements provoquant des interférences.
FCC Part 15, Class "A" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications to this equipment not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at their expense. The following techniques can be used to reduce interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.

Wireless modem certification

The device complies with Part 15 of the FCC Rules and Industry Canada license-exempt RSS standard(s). Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications to this wireless communication equipment not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Any change to the equipment will void the Industry Canada certification and FCC grant. Changes and modifications include any modifications to the wireless modems and associated antennas, including antenna cables. Follow the manufacturer recommendations for product installation, configuration and wireless operation.

Cellular devices

N O T I C E
Network and access point security is the responsibility of the customer that uses the wireless instrument. The manufacturer will not be liable for any indirect, special, incidental or consequential damages caused by a breach in network security.
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W A R N I N G
Pacemaker precautions. If electromagnetic interference (EMI) occurs, it can either:
• Stop the stimulating pulses from the pacemaker that control the rhythm of the heart.
• Cause the pacemaker to supply the pulses irregularly.
• Cause the pacemaker to ignore the rhythm of the heart and supply pulses at a set interval.
Current research shows that cellular devices are not a significant health problem for most pacemaker wearers. However, persons with pacemakers should use precautions to make sure that their device does not cause a problem. Keep the device a minimum of 20 cm (7.9 in.) from the user.
Electromagnetic radiation hazard. Make sure that the antenna is kept at a minimum distance of 20 cm (7.9 in.) from all personnel in normal use. The antenna cannot be co-located or operated in conjunction with any other antenna or transmitters.
Electromagnetic radiation hazard. In portable applications, do not use the modem within 20 cm (7.9 in.) of the user.
C A U T I O N
C A U T I O N
Regulatory RF device approvals
Modem MTSMC-LAT3 (Equipment Class: PCS Licensed Transmitter, LTE/3G module):
• FCC: Approved as a Modular Device with a TCB Grant of Authorization. FCC ID: RI7LE910NAV2
• IC: Approved as a Modular Device with Certificat D'Acceptabilite' Technique C-REL ID: 5131A­LE910NAV2
Modem MTSMC-LVW3 (PCS Licensed Transmitter, LTE/3G module):
• FCC: Approved as a Modular Device with a TCB Grant of Authorization. FCC ID: RI7LE910SVV2
• IC: Approved as a Modular Device with Certificat D'Acceptabilite' Technique C-REL ID: 5131A­LE910SVV2
Table 1 Cellular Modem: MTSMC-LAT3
FCC rule parts Frequency bands (MHz) Maximum output power (Watts)
22, 24, 27 700 (B12/ B13), 850 (B5), 1700 (B4), 1900 (B2) 0.232
Cellular Modem MTSMC-LAT3—FCC Grant Notes & Conditions :
Single Modular Approval. Power output listed is conducted. This device is approved for mobile and fixed use with respect to RF exposure compliance, and may only be marketed to OEM installers. The antenna(s) used for this transmitter, as described in this filing, must be installed to provide a separation distance of at least 20 cm from all persons. Installers and end-users must be provided with operating conditions for satisfying RF exposure compliance. Maximum permitted antenna gain/cable loss: 6.63 dBi for 700 MHz & 850 MHz; 6.00 dBi for 1700 MHz; 8.51 dBi for 1900 MHz.
Table 2 Cellular Modem: MTSMC-LVW3
FCC rule parts Frequency bands (MHz) Maximum output power (Watts)
24, 27 700 (B13), 1700 (B4), 1900 (B2) 0.219
Cellular Modem MTSMC-LVW3—FCC Grant Notes & Conditions :
Single Modular Approval. Power output listed is conducted. This device is approved for mobile and fixed use with respect to RF exposure compliance, and may only be marketed to OEM installers. The antenna(s) used for this transmitter, as described in this filing, must be installed to provide a separation distance of at least 20 cm from all persons. Installers and end-users must be provided with operating conditions for satisfying RF exposure compliance. Maximum permitted antenna gain/cable loss: 6.94 dBi for 700 MHz; 6.00 dBi for 1700 MHz; 9.01 dBi for 1900 MHz.
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Product overview

The FL900 series flow loggers are used in open-channel flow monitoring studies such as inflow & infiltration (I&I), combined sewer overflow (CSO), capacity and planning and storm water runoff monitoring.
Data is collected from attached sensors and logged for future retrieval. The sensors can be added or changed in the field. Depending on the model, up to four sensors can be connected. The data can be retrieved directly through a USB or RS232 cable or remotely through a wireless network with FSDATA Desktop and FSDATA server software. The FL900 Series loggers can also connect to an external power source, rain gauge or be used to pace a Sigma or Hach sampler.
The wireless option and the number of available connectors varies with the model of the logger. Refer to Figure 1 and Figure 2.
Figure 1 Connectors—side 1
1 Sensor (all models) 3 Computer—USB or RS232 cable (all models)
2 Sensor (FL902, FL904 only) 4 Auxiliary—external power or sampler (all but FL900)
Figure 2 Connectors—side 2
1 Sensor (FL904 only) 3 Antenna option (all but FL900)
2 Sensor (FL904 only) 4 Rain gauge (all but FL900)
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Product components

If any items are missing or damaged, contact the manufacturer or a sales representative immediately.

Apply power to the Logger

Install the batteries

W A R N I N G
Explosion hazard. Incorrect battery installation can cause the release of explosive gases. Be sure that the batteries are of the same approved chemical type and are inserted in the correct orientation. Do not mix new and used batteries.
Fire hazard. Battery substitution is not permitted. Use only alkaline batteries.
Do not over-tighten the cover. Tighten until the cover just touches the O-ring, then tighten one-quarter to one-half turn maximum from O-ring contact. Keep the O-ring lubricated with silicone grease.
The instrument can use two or four 6 V batteries for power. Use two batteries for short-term use or four batteries for long-term use (for battery life, refer to Specifications on page 3). When only two batteries are used, put both batteries on the same side of the compartment (A-A or B-B). Refer to the illustrated steps that follow. Changes in temperature and pressure can cause the battery compartment cover to be difficult to remove by hand. If this occurs, a tool can be used to remove the cover (Figure 3).
Figure 3 Battery cover removal
W A R N I N G
N O T I C E
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Attach an external power supply (optional)

W A R N I N G
Potential explosion hazard. The instrument is not approved for use in hazardous locations.
The instrument can be powered by an external long-life battery, an AS950 power supply or other source that can supply power in the specified range (refer to Specifications on page 3 and
Replacement parts and accessories on page 25). If the logger has both external power and internal
batteries, the internal batteries are used as an auxiliary power supply. When the external power falls below approximately 9 V, the internal batteries supply power until the voltage from the external source is above 9 V.
1. Install the external power source in a safe location near the logger. Be sure to obey all safety
precautions for the power supply.
2. Attach the cable from the power source to the AUX connector on the logger (Figure 4).
3. Apply power to the power source, if applicable.
Figure 4 External power options
1 2-conductor power cable (Figure 5) 3 AS950 power supply
2 Power adapter cable 4 Long-life battery
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Figure 5 2-conductor power cable wiring
1 Power—#16 AWG red 2 Common—#16 AWG black

System startup

Install FSDATA Desktop on a computer

Before the FL900 Logger is connected to a computer, make sure that FSDATA Desktop is installed on the computer. FSDATA Desktop is available at www.hachflow.com.

Attach the logger to the computer

Pre-requisites: Make sure that FSDATA Desktop is installed on the computer.
Connect only one logger to the computer.
1. Attach the logger to the computer.
2. When a USB cable is attached for the first time, the Found New Hardware wizard opens. Run the
new hardware wizard to install the USB driver for the logger. When finished, the message “Your new hardware is installed and ready to use” is shown. In the event the wizard does not run or the install fails, contact Hach Flow Tech Support to assist with trouble shooting your specific operating system.

Attach a sensor or external devices to the logger

Pre-requisite: Make sure that the connection status is "not connected".
W A R N I N G
Sensor Hazardous Locations and RF Exposure Hazards. Some sensors have RF radiation exposure hazards and are used in explosive atmospheres. See sensor manual warnings and instructions before connecting a sensor to the logger.
The number of sensors that can attach to the logger varies with the model of the logger. Some sensors must attach to an external module that is used as an interface between the sensor and the logger. Figure 7 shows the AV9000 Area Velocity Analyzer module on the side of the logger and the connection to a submerged area/velocity sensor.
1. If the sensor cable has connectors on both ends, attach the cable to the sensor first.
2. Attach the sensor (or module) to any SENSOR port on the logger (Figure 6 or Figure 7). Tighten
the connector by hand.
Note: For rain gauges, attach the sensor to the RAIN connector.
3. If the sensor uses an external module, attach the module to the logger, then attach the sensor to the module (Figure 7).
4. If the sensor cable has a desiccant hub, align the desiccant hub vertically and make sure that the air port points down (Figure 6).
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Figure 6 Attach a sensor to the logger
Figure 7 Attach a sensor to an external module

Attach an external module

An external module must be used as an interface between some sensor types and the logger. The external module is mounted on the side of the logger (Figure 7 on page 13). Refer to the documentation that is supplied with the module for mounting instructions.

Attach a sampler

The logger can attach to a Sigma 900 Standard, Sigma 900 Max, Hach SD900 or Hach AS950 sampler for flow-paced and set point sampling. Connect the AUX port on the logger to the
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auxiliary port on the sampler using a full auxiliary cable. If it is necessary to externally power the logger while connected to an AS950 sampler, use the power input aux cable assembly. To make a sampler program, refer to the documentation supplied with the sampler.

User interface

The indicators on the user interface show the status of the instrument and the modem. Refer to
Figure 8 and Table 3.
Figure 8 User interface
1 Instrument without modem 2 Instrument with modem
Table 3 LED status indicators
Indicator LED color Description
Green Flashes every 3 seconds during normal operation. Flashes every
Red Flashes when an attached sensor does not agree with the logger
Green Stays green during a call to the server.
Red Flashes red if the call to the server failed.
15 seconds during sleep mode.
program, an expected sensor is not found or the sensor operation has failed.

Program a unit equipped with a modem

C A U T I O N
Electromagnetic radiation hazard. Make sure that the antenna is kept at a minimum distance of 20 cm (7.9 in.) from all personnel in normal use. The antenna cannot be co-located or operated in conjunction with any other antenna or transmitters.
For units without a modem, refer to Basic setup on page 20. For units that come with activated modem accounts2, go to Add the logger to the FSDATA Server on page 18.

Set up the wireless account

Note: Adequate cellular coverage from the selected carrier must be verified for each site before a logger with a cellular modem is purchased.
2
The units that come with activated modem accounts have part numbers with .AX, .AR, .VX, or .VR as the last digits.
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N O T I C E
Network and access point security is the sole responsibility of the customer using the wireless instrument. The manufacturer will not be liable for any indirect, special, incidental or consequential damages caused by a breach in network security.
When the logger has a modem, data can be sent from the logger to the internet for remote access. The user must first open an account with a mobile (wireless) provider. The instrument is then registered to the data-hosting server (FSDATA), and the applicable communication settings are programmed into the logger with FSDATA Desktop. If the modem was activated at the factory, go to
Add the logger to the FSDATA Server on page 18.
Pre-requisite: Make sure that the logger, logger test certificate and antenna are nearby.
Note: For optimal troubleshooting, install the FSDATA Desktop driver, add the logger to the FSDATA server, and verify telemetry before visiting the deployment site.
1. Gather your account information.
a. Find the IMEI number from the label. Refer to Figure 9. b. Find the modem carrier model from the label.
2. Contact a wireless provider to start service on the modem. Make sure the wireless provider
matches the modem type in the logger, LVW3 = Verizon or LAT3 = PTCRB (AT&T, T-Mobile, etc.). Request a data plan with a minimum 10 MB of data per month and SMS. (SMS is optional but required to transmit alarm notifications to an email or mobile number).
a. Give the IMEI number to the provider. If requested, give the carrier model, also found on the
transmitter label.
b. Record the phone number for the modem.
3. Use the modem diagnostics in FSDATA Desktop to verify operation. Refer to the FSDATA
Desktop documentation.
Figure 9 Transmitter Label Examples
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Install a SIM card

N O T I C E
Potential Instrument Damage. Delicate internal electronic components can be damaged by static electricity, resulting in degraded performance or eventual failure.
N O T I C E
The instrument enclosure can break if the cover screws are over-tightened. Tighten the cover screws by hand with a maximum torque of 2.0 Nm (20 in./lb). Make sure that the gasket is lubricated with grease.
Install a SIM card from the mobile carrier. Refer to the illustrated steps that follow. Make sure that the PIN of the SIM card is disabled, and that the SIM card is for 4G LTE data.
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Attach an antenna (wireless option)

C A U T I O N
Electromagnetic radiation hazard. Make sure that the antenna is kept at a minimum distance of 20 cm (7.9 in.) from all personnel in normal use. The antenna cannot be co-located or operated in conjunction with any other antenna or transmitters.
An antenna can be attached to the instrument for wireless communication. Various antenna options are available. Refer to Replacement parts and accessories on page 25. Attach an antenna directly to the logger or attach an antenna cable to the ANTENNA connector (Figure 10).
Figure 10 Attach the blade antenna
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Add the logger to the FSDATA Server

Pre-requisite: Serial number of the logger
Figure 11 Serial number location
N O T I C E
Be sure to enter the serial number and SVC correctly to prevent communication failure.
1. Go to the website http://fsdata.hach.com to access the FSDATA server.
2. Enter the user name and password:
• User name—the default user name is the 8-digit customer ID number
• Password—the default password is HachWebData
3. Go to Instruments>Instrument Manager.
4. Record the SVC (Server Verification Code) from the upper left corner of the screen:
_______________________
5. Click ADD NEW. The Add Instrument window opens.
6. Enter the serial number (SN) of the logger (Figure 11).
7. Select the Instrument Type.
8. Select the Active check box and click OK. The instrument is shown in the Instrument Manager.

Configure the logger for remote communication

Pre-requisites: The logger must be attached to the computer. An account with a network provider
must be set up, and the server must be configured. The settings for remote communication must be entered into FSDATA Desktop and then written to the logger.
1. Start a communication session with the logger:
a. Open FSDATA Desktop. b. Click CONNECT. The Connect to Instrument window opens. c. Click the FL900 button. d. Select the port on the computer where the logger is attached (serial or USB), then click
Connect.
Note: If the sensor mismatch message is shown, select "Create new program based on sensors connected."
e. Make sure that the connection status shows "connected".
2. Go to the Communications tab. Enter the information for the desired site. Select Time Zone.
3. Complete the Remote Settings information:
Option Description
Verizon 4G No additional configuration is necessary.
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Option Description
LAT3 4G Select the network provider and enter the user name and password, if applicable.
Primary Call Interval The frequency that the logger calls the server.
Secondary call interval The frequency that the logger calls the server during an alarm condition.
Server Verification Code The code that specifies which account on the FSDATA server the logger belongs
to. The server cannot store data without this code.
4. Click WRITE TO LOGGER to save the settings. A message window is shown:
Option Description
Warning: all data will be lost. Continue?
Set Logger Clock Synchronize to Computer Clock—the logger uses the date and time settings of the
All data that is stored in the logger is erased when a program is written to the logger. To save the data, select No and download the data to a safe location. Select Yes to erase all data and update the logger with the new program.
computer. Set Logger Clock—the logger uses the date and time settings that are set by the user. If the unit has a modem, the logger automatically uses the date time settings of the server.

Verify the telemetry (wireless option)

The user can manually send a call to the server to make sure that the network communication is good.
1. Temporarily attach the antenna to the logger to test the antenna and the cell coverage at the site location before installation.
2. Touch the magnet to the call initiation target (Figure 12). The modem LED indicator changes to green.
3. Look at the modem LED indicator during the call (45 to 90 seconds) and wait for a change:
• LED goes off—the call to the server was successful.
• LED flashes red—the call to the server failed.
Note: If the connection failed, refer to Troubleshooting on page 24 for more information.
Figure 12 Call the server
1 Call initiation target 2 Magnet
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Verify the telemetry with FSDATA Desktop

1. In FSDATA Desktop, select Communications>Modem Diagnostics.
2. Make sure the registration status is either home or roaming. If blank or "identify" is shown, the
connection has failed.
3. Adjust the antenna for optimum signal strength and quality.
4. Click Call Server to make a call to the network.
A pop up screen will indicate success or failure.

Troubleshooting telemetry

• Make sure the SVC is correct.
• Make sure the serial number is registered and active on the host server.
• Make sure the modem is enabled and the Hach IP address has been correctly entered.
• If the problem persists, contact technical support.

Use the mobile SMS option

Configure the FL900 modem to send or receive SMS messages (optional). Refer to FSDATA Desktop documentation for configuration information.

Modbus communication

The Modbus protocol can be used for communication with this instrument. Attach an external network device, such as a PLC, to the RS232 interface on the instrument to read data as it is logged.
Contact technical support for more information on Modbus communications.
Note: Historical data cannot be read with Modbus communication.

Basic setup

The information in this manual can be used to make a simple program for the logger and to calibrate the sensors. Refer to the FSDATA Desktop documentation for advanced options. Complete the sections in the order that they are shown.

Make a basic logger program

A basic program must be written to the logger to specify the channels to be logged.
1. Open a communication session with the logger:
a. Open FSDATA Desktop. b. Click CONNECT. The Connect to Instrument window opens. c. Click the FL900 button. d. Select the port on the computer where the logger is attached (serial or USB), then click
CONNECT.
Note: If the sensor mismatch message is shown, select "Create new program based on sensors connected."
e. Make sure that the connection status shows "connected".
2. Complete the information in the General Settings tab.
Option Description
Site Identification Enter a unique name for the site.
3. Select the channels to be logged in the Select channels to log section:
a. Expand the tree for the Logger channel group. The Power Supply channel is always shown in
this group. Logging the power supply will provide values for the battery level. An alarm could be set at a specific level to alert the account manager of a low level, thus prompting a field
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visit to change the batteries and prevent lost data. If the logger contains a port for a rain gauge, the Rain channel is also shown. To include a Logger channel in the datalog, select the check box next to the channel name.
b. Expand the tree for each Port[1](Sensor Name) channel group to view the available channels
for the sensor. If the check box next to Logger or Port[1] is selected, all of the channels in the group are automatically selected.
c. To include a Sensor channel in the datalog, select the check box next to the channel name.
The log channel count increases each time a channel is selected.
Note: For loggers with multiple sensor ports, the port number is added to the channel name. For example, Velocity 3 is the velocity channel name for sensor port 3.
4. To set the logging interval for a channel group:
a. Click on the channel group name, for example Port1 (Flo-Dar). The logging intervals are
shown.
b. Select the interval from the drop-down list. The primary logging interval is used for normal
operation. The secondary logging interval is used during alarm conditions.
Note: The logging interval cannot be set for an individual sensor channel.
5. Click WRITE TO LOGGER to save the settings. A message window is shown:
Option Description
Warning: all data will be lost. Continue?
Set Logger Clock Synchronize to Computer Clock—the logger uses the date and time settings of the
All data that is stored in the logger is erased when a program is written to the logger. To save the data, select No and download the data to a safe location. Select Yes to erase all data and update the logger with the new program.
computer. Set Logger Clock—the logger uses the date and time settings that are set by the user. If the unit has a modem, the logger automatically uses the date time settings of the server.

Calibrate the sensor with the Cal Wizard

Pre-requisite: The logger must be connected to the computer and must be online for calibration.
The sensor can be configured and calibrated with the calibration wizard.
1. Click the Sensors tab.
2. Click on Sensor Port[1] (sensor name).
3. Click on the CAL WIZARD button. The Calibration Wizard window opens.
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4. Select the options on each screen. When the Calibration Complete screen is shown, click FINISH.
5. Click WRITE TO LOGGER to save the settings. A message window is shown:
Option Description
Warning: all data will be lost, Continue?
Set Logger Clock Synchronize to Computer Clock—the logger uses the date and time settings of the
All data that is stored in the logger is erased when a program is written to the logger. To save the data, select No and download the data to a safe location. Select Yes to erase all data and update the logger with the new program.
computer. Set Logger Clock—the logger uses the date and time settings that are set by the user. If the unit has a modem, the logger automatically uses the date and time settings of the server.
The installation is complete. The Status light should flash green if the programming was successful.

Site installation

W A R N I N G
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.

Hang from a cable

N O T I C E
Do not use the handles to hang the logger. The handles are not designed to hold the weight of the logger.
The logger can hang from a cable for installation in an area such as a manhole.
1. Connect a cable to the eye bolts on the top of the logger. Refer to Figure 13.
2. Hang the cable from a strong support such as an optional spanner bar.
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Figure 13 Hang the logger from a cable

Install on a wall bracket

The logger can be attached to a wall, pole or ladder. Refer to the documents that are supplied with the hardware for installation instructions.

Maintenance

W A R N I N G
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
W A R N I N G
Biological hazard. Obey safety handling protocols and wear all of the personal protective equipment required when handling an instrument that may have come in contact with biological hazardous materials. Wash and decontaminate the instrument with a disinfectant soap solution and rinse with hot water before maintenance or shipping.
Electromagnetic radiation hazard. Make sure that the antenna is kept at a minimum distance of 20 cm (7.9 in.) from all personnel in normal use. The antenna cannot be co-located or operated in conjunction with any other antenna or transmitters.

Clean the instrument

Clean the exterior of the instrument with a moist cloth and a mild soap solution and then wipe the instrument dry.
C A U T I O N
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Replace the batteries

Replace the batteries with the same type and rating. Refer to Install the batteries on page 9 and
Specifications on page 3.

Replace the desiccant

The desiccant is located in the battery compartment. To remove the battery cover, refer to Install the
batteries on page 9. The desiccant absorbs moisture from the air and prevents corrosion to the
instrument components. The desiccant beads change color when they become saturated. Replace the desiccant when the beads change from a yellow to a green color (refer to Figure 14). As a best practice, replace the desiccant when the batteries are replaced.
Figure 14 Desiccant replacement

Troubleshooting

If problems occur in the system, try to find whether the problem is with the sensor, the logger or the cable connections.
• Examine all connections to the sensors. Make sure all connections are tight.
• Remove and examine the sensor connectors for moisture. Clean and dry if necessary.
• Examine the sensors for debris and remove the debris.
• Examine the Event Log for problem events.

Communication failure

If a call was sent to the server but the connection failed, complete the following tasks:
• Disconnect and apply power to the instrument.
• Adjust the antenna to increase the signal strength.
• Log on to the server and make sure that the serial number was entered correctly and that the SVC
used for configuration was recorded correctly.
• Make sure that the communication settings were entered correctly in the FL900 driver window.
• Connect the logger to the computer and open a communications session. In the FL900 driver
window, click on the Diagnostics tab and then the Modem menu. The Registration Status should be Home.
• If there is no resolution, call technical support.
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Replacement parts and accessories

Note: Product and Article numbers may vary for some selling regions. Contact the appropriate distributor or refer to the company website for contact information.
Replacement parts
Description Item no.
Battery compartment cover 8524400
Battery compartment cover, O-ring 8533400
Desiccant cap assembly (battery compartment desiccant) 8754900
Desiccant tube assembly (battery compartment desiccant) 8535200
Desiccant, replacement beads, 680 g (1.5 lb) 8755500
Eyebolts, 1/4–20 x 2.5-in. stainless steel 8535500
Gasket, top cover 8533300
Enclosure screw, #10–14 x 1 in. 8753300
Logger handle 8524200
Lubricant, silicone, 0.25 oz 000298HY
Magnet assembly 8537800
Cap and lanyard for the Sensor, Comm or Aux connectors 8535000
Cap and lanyard for the rain gauge connector 9492500
Power
Description Item no.
Battery, 6 V lantern 11013M
Battery, long-life alkaline 8542900
Long-life alkaline battery pack top cap adapter and cable 8543000
Cable assembly, external power, 2.7 m (9 ft) 8528700
Cable assembly, external power, 7.6 m (25 ft) 8528701
Mounting hardware
Description Item no.
Wall-mount bracket without ladder hanger 8542700
Wall-mount bracket adapter 8543800
Antennas
Description Item no.
Blade, 3G/4G LTE, 3 dBi 8623800
Mini-wing, 2G/3G/4G LTE, 2.5 m (8.2 ft) cable, 5.5 dBi 8624000
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Antennas (continued)
Description Item no.
Burial, 3G/4G LTE, 3 m (9.8 ft) cable, 3 dBi 8624200
Manhole Lid, 3G/4G LTE, 3 m (9.8 ft) cable, 3 dBi 8624400
Auxiliary/Sampler cables
Description Item no.
Cable, auxiliary, multi-purpose half, 7 pin, 2.7 m (9 ft) 8528500
Cable, auxiliary, multi-purpose half, 7 pin, 7.6 m (25 ft) 8528501
Cable, FL900 logger to AS950 AUX port, 7 pin, 2.7 m (9 ft) 9500700
Cable, FL900 logger to AS950 AUX port, 7 pin, 7.6 m (25 ft) 9500701
Cable assembly, power input AUX, AS950-FL900 with power adapter 8322800
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*DOC026.53.80015*
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P.O. Box 389, Loveland, CO 80539-0389 U.S.A. Tel. (970) 669-3050 (800) 368-2723 (U.S.A. only) U.S.A. – orders@hach.com International – intlsupport@hach.com flowtechsupport@hach.com www.hachflow.com
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