OTT Hydrolab DS5X User manual

Hydrolab DS5X, DS5, and MS5
Water Quality Multiprobes
USER MANUAL
February 2006, Edition 3
© Hach Company, 2006. All rights reserved.

3
Table of Contents
Section 1 Specifications......................................................................................................................................... 5
Section 2 General Information ............................................................................................................................... 9
2.1 Safety Information............................................................................................................................................... 9
2.1.1 Use of Hazard Information......................................................................................................................... 9
2.1.2 Precautionary Labels................................................................................................................................. 9
2.2 DS5, DS5X Multiprobe...................................................................................................................................... 10
2.3 MS5 Multiprobe................................................................................................................................................. 10
2.4 Sensor Options ..................................................................................................................................................11
2.4.1 DS5 Sensor Options................................................................................................................................ 12
Section 3 Installation ............................................................................................................................................ 15
3.1 Unpacking the Instrument................................................................................................................................. 15
3.2 Instrument Assembly ........................................................................................................................................ 15
3.3 Power Options .................................................................................................................................................. 16
Section 4 Operation .............................................................................................................................................. 19
4.1 Parameter Setup............................................................................................................................................... 19
4.1.1 Using the Surveyor for Parameter Setup................................................................................................. 19
4.1.2 Using Hydras 3 LT for Parameter Setup.................................................................................................. 20
4.1.3 Specific Conductance Parameter Setup.................................................................................................. 20
4.1.4 Clark Cell Dissolved Oxygen Parameter Setup....................................................................................... 22
4.1.5 pH Parameter Setup................................................................................................................................ 22
4.1.6 Other Parameter Setup ........................................................................................................................... 22
4.2 Calibration......................................................................................................................................................... 22
4.2.1 Calibrating the Sensors Using the Surveyor............................................................................................ 22
4.2.2 Calibrating the Sensors Using Hydras 3 LT............................................................................................. 23
4.2.3 Calibration Preparation............................................................................................................................ 24
4.2.4 Temperature Sensor Calibration.............................................................................................................. 25
4.2.5 Specific Conductance Calibration............................................................................................................ 25
4.2.6 Clark Cell Dissolved Oxygen Sensor Calibration .................................................................................... 25
4.2.6.1 Water-Saturated Air Dissolved Oxygen Calibration....................................................................... 25
4.2.6.2 Known Concentration Dissolved Oxygen Calibration..................................................................... 26
4.2.7 Pressure Sensor Calibration.................................................................................................................... 27
4.2.8 pH/ORP Calibration................................................................................................................................. 27
4.2.9 Other Sensor Calibrations....................................................................................................................... 27
4.3 Using the DS5/MS5 for Short Term Deployments............................................................................................. 27
4.3.1 Gathering Data Using the Surveyor......................................................................................................... 27
4.3.2 Gathering Data Using a PC and Hydras 3 LT.......................................................................................... 27
4.3.3 Using the DS5/DS5X/MS5 for Unattended Monitoring............................................................................ 27
4.3.3.1 Creating Log Files.......................................................................................................................... 27
4.3.3.2 Downloading Log Files................................................................................................................... 28
Section 5 Deployment........................................................................................................................................... 29
5.1 Deployment Considerations.............................................................................................................................. 29
5.1.1 Pressure Extremes.................................................................................................................................. 29
5.1.2 Temperature Extremes............................................................................................................................ 29
5.1.3 Data Transmission Lines......................................................................................................................... 29
5.1.4 Minimum Depth Requirements................................................................................................................ 29
5.2 Deployment in Open Waters............................................................................................................................. 30
5.2.1 Minimum Clearance Requirements ......................................................................................................... 30
5.2.2 Long-term Deployment in Open Waters.................................................................................................. 30
5.2.2.1 Anchoring the DS5 or DS5X using the Support Bail...................................................................... 31
5.2.2.2 Anchoring the MS5 using the Bail Kit............................................................................................. 32
5.2.2.3 Anchoring the MS5 using the Mooring Fixture............................................................................... 32

4
Table of Contents
5.2.3 Short-term Deployment in Open Waters..................................................................................................33
5.2.4 Minimum Flow Requirements...................................................................................................................35
5.2.5 Non-submersible Deployment..................................................................................................................35
Section 6 Maintenance..........................................................................................................................................37
6.1 Multiprobe and Accessory Maintenance............................................................................................................37
6.1.1 Cleaning the Multiprobe Housing.............................................................................................................37
6.1.2 Dryer Maintenance...................................................................................................................................37
6.1.3 FreshFlow™ Miniature Sample Circulator Maintenance..........................................................................38
6.2 Battery Replacement.........................................................................................................................................38
6.2.1 DS5 and DS5X Battery Replacement......................................................................................................38
6.2.2 MS5 Battery Replacement.......................................................................................................................39
6.2.3 Lithium Battery Replacement...................................................................................................................40
6.3 Storage and Care Recommendations ...............................................................................................................42
6.3.1 Mulitprobe and Sensor Storage ...............................................................................................................42
6.3.2 Electrical Cable Care ...............................................................................................................................42
6.4 Sensor Maintenance..........................................................................................................................................43
6.5 Clark Cell Dissolved Oxygen Maintenance .......................................................................................................43
6.6 Specific Conductance, Salinity, and TDS Maintenance.....................................................................................44
6.7 ORP Sensor Maintenance.................................................................................................................................44
6.8 pH Electrode Maintenance................................................................................................................................44
6.8.1 Standard Reference Electrode.................................................................................................................45
6.8.2 pH Integrated Sensor...............................................................................................................................46
6.9 Temperature Sensor Maintenance ....................................................................................................................46
6.10 Pressure Sensor Maintenance........................................................................................................................46
6.11 Other Sensor Maintenance..............................................................................................................................46
Section 7 Replacement Parts and Accessories..................................................................................................47
Section 8 How to Order .........................................................................................................................................49
Section 9 Repair Service.......................................................................................................................................50
Section 10 Limited Warranty ................................................................................................................................51
Appendix A Troubleshooting................................................................................................................................53
Appendix B External Communications ...............................................................................................................57
B.1 SDI-12 Interface .........................................................................................................................................57
B.2 Connection to an External Device ..............................................................................................................58
B.3 RS485 Interface..........................................................................................................................................60
B.4 Modbus Interface........................................................................................................................................60
B.5 Using a Modem with Multiprobes ...............................................................................................................62
B.6 TTY Mode...................................................................................................................................................64
B.6.1 TTY Menu and Commands...............................................................................................................65
B.6.2 Data Display......................................................................................................................................66
Appendix C Using HyperTerminal........................................................................................................................67
C.1 HyperTerminal Setup .................................................................................................................................67
Appendix D Glossary & Abbreviations................................................................................................................69

5
Section 1 Specifications
Specifications are subject to change without notice.
DS5 and DS5X Transmitter
Outer Diameter 8.9 cm (3.5 in.)
Length 58.4 cm (23 in.)
Weight (typical configuration) 3.35 kg (7.4 lb)
Maximum Depth 225 m
Operating Temperature –5 to 50 °C
Battery Supply (optional) 8 C batteries
Computer Interface RS232, SDI-12, RS485
Memory (optional) 120,000 measurements
MS5 Transmitter
Outer Diameter 4.4 cm (1.75 in.)
Length 53.3 cm (21 in.)
74.9 cm (29.5 in.) with battery pack
Weight (typical configuration) 1.0 kg (2.2 lb)
1.3 kg (2.9 lb) with battery pack
Maximum Depth 225 m
Operating Temperature –5 to 50 °C
Battery Supply (optional) 8 AA batteries
Computer Interface RS232, SDI-12, RS485
Memory (optional) 120,000 measurements
Temperature Sensor
Range –5 to 50 °C
Accuracy ± 0.10 °C
Resolution 0.01 °C
Specific Conductance Sensor
Range 0 to 100 mS/cm
Accuracy ± 1% of reading; ± 0.001 mS/cm
Resolution 0.0001 units
pH Sensor
Range 0 to 14 units
Accuracy ± 0.2 units
Resolution 0.01 units

6
Specifications
Clark Cell Dissolved Oxygen Sensor
Range 0 to 50 mg/L
Accuracy ± 0.2 mg/L at ≤ 20 mg/L
± 0.6 mg/L at > 20 mg/L
Resolution 0.01 mg/L
ORP
Range –999 to 999 mV
Accuracy ± 20 mV
Resolution 1 mV
Depth Vented Level
Range 0 to 10 m
Accuracy ± 0.01 m
Resolution 0.001 m
Depth 0–25 m
Range 0 to 25 m
Accuracy ± 0.05 m
Resolution 0.01 m
Depth 0–100 m
Range 0 to 100 m
Accuracy ± 0.05 m
Resolution 0.01 m
Depth 0–200 m
Range 0 to 200 m
Accuracy ± 0.1 m
Resolution 0.1 m
Hach LDO® Sensor
Range 0–30 mg/L
Accuracy ± 0.01 mg/L for 0–8 mg/L; ± 0.02 mg/L for greater than 8 mg/L
Resolution 0.01 or 0.1 mg/L
Salinity
Range 0 to 70 ppt
Accuracy ± 0.2 ppt
Resolution 1 mV
4-beam Turbidity (DS5 Only)
Range 0 to 1000 NTU
Accuracy ± 5% of reading; ± 1 NTU
Resolution 0.1 NTU (<100 NTU); 1NTU (≥100 NTU)

7
Specifications
Self-cleaning Turbidity
Range 0 to 3000 NTU
Accuracy ± 1% up to 100 NTU, ± 3% up to 100–400 NTU, ± 5% from 400–3000 NTU
Resolution 0.1, up to 400 NTU; 1.0, 400–3000 NTU
Ammonium/Ammonia
Range 0 to 100 mg/L-N
Accuracy Greater of ± 5% of reading or ± 2 mg/L-N (typical)
Resolution 0.01 mg/L-N
Nitrate
Range 0 to 100 mg/L-N
Accuracy Greater of ±5% of reading or ±2 mg/L-N (typical)
Resolution 0.01 mg/L-N
Chloride
Range 0.5 to 18,000 mg/L
Accuracy Greater of ± 5% of reading or ± 2 mg/L (typical)
Resolution 0.0001 units
Total Dissolved Gas
Range 400 to 1300 mmHg
Accuracy ± 0.1% of span
Resolution 1.0 mmHg
Ambient Light
Range 0 to 10,000 µmol s–1 m–2
Accuracy ± 5% of reading or ± 1 µmol s–1 m–2
Resolution 1 µmol s–1 m–2
Chlorophyll a
Range 0 to 500 µg/L, 0 to 50 µg/L, 0 to 5 µg/L
Accuracy ± 3% for signal level equivalents of 1 ppb Rhodamine WT dye
Resolution 0.01 µg/L
Rhodamine WT
Range 0 to 1000 ppb, 0 to 100 ppb, 0 to 10 ppb
Accuracy ± 3% for signal level equivalents of 1 ppb Rhodamine WT dye
Resolution 0.01 ppb
Blue-green Algae
Range 100 to 2,000,000 cells/mL, 100 to 200,000 cells/mL, 100 to 20,000 cells/mL
Accuracy ± 3% for signal level equivalents of 1 ppb Rhodamine WT dye
Resolution 0.01 cells/mL

9
Section 2 General Information
2.1 Safety Information
Please read this entire manual before unpacking, setting up, or operating this instrument.
Pay particular attention to all danger and caution statements. Failure to do so could result
in serious injury to the operator or damage to the equipment.
Do not use or install this equipment in any manner other than that which is specified in this
manual.
2.1.1 Use of Hazard Information
If multiple hazards exist, this manual will use the signal word (Danger, Caution, Note)
corresponding to the greatest hazard.
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or
moderate injury.
Important Note: Information that requires special emphasis.
Note: Information that supplements main points in the text.
2.1.2 Precautionary Labels
Read all labels and tags attached to the instrument. Personal injury or damage to the
instrument could occur if not observed.
This symbol, when noted on the instrument, references the instruction manual for operation
and/or safety information.
This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or
electrocution exists and indicates that only individuals qualified to work with hazardous voltages should open the
enclosure or remove the barrier.
This symbol, when noted on the product, identifies the location of a fuse or current limiting device.
This symbol, when noted on the product, indicates that the marked item can be hot and should not be touched
without care.
This symbol, when noted on the product, indicates the presence of devices sensitive to Electro-static Discharge and
indicates that care must be taken to prevent damage to them.
This symbol, when noted on the product, identifies a risk of chemical harm and indicates that only individuals
qualified and trained to work with chemicals should handle chemicals or perform maintenance on chemical delivery
systems associated with the equipment.
This symbol, when noted on the product, indicates the need for protective eye wear.
This symbol, when noted on the product, identifies the location of the connection for Protective Earth (ground).

10
General Information
2.2 DS5, DS5X Multiprobe
The DS5 and DS5X are designed for in-situ and flow-through applications, and can
measure up to 15 parameters simultaneously. The DS5 and DS5X have seven
configurable ports that can include up to ten of the following sensors: ambient light,
ammonia, chloride, chlorophyll a, rhodamine WT, conductivity, depth, dissolved oxygen,
nitrate, ORP, pH, temperature, total dissolved gas, turbidity, and blue-green algae.
Figure 1 DS5 Multiprobe
Figure 2 DS5X Multiprobe
2.3 MS5 Multiprobe
The MS5 is a portable instrument used for long-term monitoring or profiling applications.
The MS5 has four configurable ports that can include a combination of the following
sensors: ammonia, chloride, chlorophyll a, rhodamine WT, conductivity, depth, dissolved
1. Calibration Cup 5. Bulkhead Connector
2. Storage Cup 6. Battery Compartment (optional)
3. Locking Screw 7. Bail Attachment
4. Housing
1. Calibration Cup 5. Bulkhead Connector
2. Storage Cup 6. Battery Compartment (optional)
3. Locking Screw 7. Bail Attachment
4. Housing
167
∅
∅
88 mm
3.45 inches
571 mm (22.5 inches)
23 45
167
∅
∅
88 mm
3.45 inches
571 mm (22.5 inches)
23 45

11
General Information
oxygen, nitrate, ORP, pH, temperature, total dissolved gas, turbidity, and blue-green
algae.
Figure 3 MS5 Multiprobe
2.4 Sensor Options
1. Calibration Cap 4. Housing
2. Calibration Cup 5. Battery Compartment (optional)
3. Locking Screw 6. Connector
MS5 Sensor Options
Sensor Description Cat. No.
Hach LDO® Sensor 007455
Clark Cell Dissolved Oxygen/Conductivity 004467
Clark Cell Dissolved Oxygen 004470
Conductivity with pH Return 004468
Total Dissolved Gas 004469
pH and ORP, with Integrated Reference 004454
pH with Integrated Reference 004446
Low Ionic Strength Reference 004445
pH 004461
pH and ORP 004462
Chloride 004496
Nitrate 004494
Ammonium/Ammonia 004492
Standard Reference 004463
Circulator 007245
Self-cleaning Turbidity 007280
Standard Turbidity 004466
123 45 6 ∅
∅
44.5 mm
1.75 inches
724 mm (28.5 inches)

12
General Information
Chloropyll a 007284
Rhodamine WT 007285
Blue-green Algae 007293
2.4.1 DS5 Sensor Options
Sensor Description Cat. No.
Hach LDO®Sensor 007455
Clark Cell Dissolved Oxygen/Conductivity 004467
Clark Cell Dissolved Oxygen 004470
Conductivity with pH Return 004468
Total Dissolved Gas 004469
pH and ORP, with Integrated Reference 004454
pH with Integrated Reference 004446
Low Ionic Strength Reference 004445
pH 004461
pH and ORP 004462
Chloride 004496
Nitrate 004494
Ammonium/Ammonia 004492
Standard Reference 004463
Circulator 007245
4-beam Turbidity (DS5 only) 004524
Standard Turbidity (DS5 only) 004466
Self-cleaning Turbidity 007140
Chlorophyll a 007202
Rhodamine WT 007204
MS5 Sensor Options
Sensor Description Cat. No.

13
General Information
Blue-green Algae 007291
2.4.1 DS5 Sensor Options (continued)
Sensor Description Cat. No.

15
Section 3 Installation
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
3.1 Unpacking the Instrument
Remove the multiprobe from its shipping carton and inspect it for any visible damage.
Contact Customer Service at 1-800-949-3766 if any items are missing or damaged.
Note: It is normal for a small amount of solution to be in the cup.
3.2 Instrument Assembly
There are many ways to connect a multiprobe to a display or a personal computer.
DANGER
An electrical shock hazard can exist in a wet or outdoor environment, if the
multiprobe is powered via the external 115 VAC power supply. The safest and
preferred method of powering this equipment in wet or outdoor environments is
with battery or solar power (with a combined voltage not to exceed 15 volts). If it is
necessary to power the multiprobe with the 115 VAC power supply in a wet or
outdoor environment, a Ground Fault Interrupt (GFI) circuit is required. The
installation of the GFI device must be done by a licensed electrician.
1. Remove all protective plugs and keep them in a safe place, they will be used again for
moving and storage.
2. Connect the calibration cable (Cat. No. 013470), or detachable cable (015XXX) to the
multiprobe. The connectors are keyed for proper assembly. Align the bigger pin on the
multiprobe male connector to the indicator dots on the female cable connector. Do not
rotate the cable or force or twist the pins into the connectors to prevent damage to the
connector pins.
3. Power the instrument by connecting the power receptacle from the calibration cable
and external power adapter to an approved battery or power supply (see Figure 4 on
page 16).
4. Connect the other end of the calibration cable, detachable cable, fixed cable, or
external power adapter to the computer serial port.
5. Start the communications program (Hydras 3 LT).
6. The software will automatically scan for Sondes. All detected Sondes are displayed in
the ‘Connected Sondes’ list in the Main window displayed below. If a Sonde is not
found, reattach the data cable and press RE-SCAN FOR SONDES. Retry until the
Sonde(s) are found.

16
Installation
3.3 Power Options
A logging multiprobe can be powered by several sources:
•The DS5 and DS5X have an optional internal battery pack (IBP) holding 8 size C
alkaline batteries.
•The MS5 has an optional internal battery pack holding 8 size AA alkaline batteries.
•Both multiprobes can use the external battery pack (EBP).
•Both multiprobes can use either of the following power supplies: the 110 VAC 12 VDC
power adapter or the 220 VAC 12 VDC power adapter.
•Both multiprobes can use a customer-supplied 12-volt deep cycle battery with
appropriate amp-hour capacity connected via the battery adapter or a cable with a
4-pin female metal shell connector.
•Both multiprobes can be powered using a Surveyor Datalogging Display, which is
equipped as a standard with a 7.2V, 3.5 Ah NiMH rechargeable battery.
Note: Multiprobes configured with the Self-cleaning Turbidity and one or more fluorescence sensors
(Chlorophyll a, Rhodamine WT, Blue-green Algae) require either an internal battery pack or an
external power source other than the Surveyor.
Figure 4 Power Options
*Use the correct power cord with the IEC 320 connector.
**To prevent damage, use a regulated 12 VDC adapter. An unregulated 12 VDC adapter may exceed the instrument voltage
limit rating.
PRefer to Assembly Options.
P
P
P
P
P
110 VAC, 12 VDC Power Adapter (Cat. No. 013450)
220 VAC, 12 VDC Power Adapter (Cat. No. 013460)
Cigarette Lighter Adapter (Cat. No. 013210)
External Battery Pack
(110 VAC, 12 VDC - Cat. No. 011050)
(220 VAC, 12 VDC - Cat. No. 012480)
Battery Adapter (Cat. No. 011530HY)

17
Installation
Figure 5 Assembly Options

19
Section 4 Operation
CAUTION
When loosening removable parts from a multiprobe, always point those parts away
from your body and other people. In extreme conditions, excess pressure may
build-up inside any underwater housing, causing the caps, sensors, or other
removable parts to disengage with force which may cause serious injury.
The Sondes use Hydras 3 LT or a Surveyor to set up parameters and calibrate the
sensors.
Figure 6 Operations Setup
4.1 Parameter Setup
4.1.1 Using the Surveyor for Parameter Setup
For more information on the Surveyor, refer to the User Manual (Cat. No. 00719618).
1. Attach the power and data cable to the Sonde. Attach the 9-pin connector to the
Surveyor.
2. Turn on the Surveyor. Wait approximately 10 seconds for initialization.
3. Press SETUP/CAL. Press SETUP. Press SONDE.
4. Highlight Parameters and press SELECT.
5. Use the ARROW keys to highlight the appropriate parameter and press SELECT.
6. Highlight the appropriate function and press SELECT. A configuration screen will be
displayed. Depending on the application, use the ARROW keys to change the function,
press SELECT and DONE to finish.
HYDROLAB
POWERED BY TECHNOLOGY
SURVEYOR 4a
R
Windows 98 , NT , 2000 , XP
®® ®®
Surveyor®4a
Power
Adapter
DataSonde
or
MiniSonde
™
™
4-pin
6-pin
9-pin
Calibration Cable

20
Operation
4.1.2 Using Hydras 3 LT for Parameter Setup
For more information on Hydras 3 LT, refer to the Quick Start Guide (Cat. No. 6234289) or
press the F1 key while Hydras 3 LT is active.
1. Attach the power and data cable to the Sonde. Attach the 9-pin connector to a PC.
2. Start Hydras 3 LT. Wait for the software to scan for connected Sondes. Highlight the
multiprobe and press OPERATE SONDE.
Note: If the Sonde appears to be connected and the software does not recognize the Sonde
connection, remove and replace the connector cable and press RE-SCAN FOR SONDE. Repeat
until Hydras 3 LT recognizes the Sonde.
3. Click on the Parameter Setup tab and select the parameter tab to be configured.
4. Enter the appropriate values and press SAVE SETTINGS.
4.1.3 Specific Conductance Parameter Setup
For specific conductance set the following functions using Hydras 3 LT or the Surveyor:
•Select the specific conductance function (Fresh, Salt, StdMth, None, or Custom).
• Fresh (default) is based on the manufacturer’s freshwater temperature
compensation. This function is derived from