Hach-Lange Sigma SD900 User Manual

Catalog Number DOC026.53.00742

Sigma SD900 Portable Sampler

USER MANUAL

June 2007, Edition 1

© HACH Company, 2007. All rights reserved. Printed in the U.S.A.

Table of Contents

Section 1 Specifications.................................................................................................................... 5

1.1 Dimensions.................................................................................................................................. 8

1.2 Bottle and retainer configurations ................................................................................................ 9

Section 2 General Information....................................................................................................... 11

2.1 Safety information...................................................................................................................... 11

2.1.1 Use of hazard information................................................................................................. 11

2.1.2 Precautionary labels ......................................................................................................... 11

2.1.3 Confined space precautions ............................................................................................. 12

2.2 Sampler overview ...................................................................................................................... 13

2.2.1 Sampler components........................................................................................................ 13

Section 3 Installation........................................................................................................................ 15

3.1 Unpack the sampler ...................................................................................................................15

3.2 Installation guidelines................................................................................................................. 17

3.2.1 Manhole installation .......................................................................................................... 19

3.3 Sampler base preparation.......................................................................................................... 19

3.3.1 Clean the sample bottles .................................................................................................. 19

3.3.2 Single bottle installation .................................................................................................... 20

3.3.2.1 Full bottle shut-off installation................................................................................... 20

3.3.3 Multiple bottle installation .................................................................................................. 21

3.3.3.1 Bottle number 1 position .......................................................................................... 21

3.3.3.2 Two or four bottle installation ................................................................................... 22

3.3.3.3 Eight bottle installation ............................................................................................. 23

3.3.3.4 24 bottle installation ................................................................................................. 24

3.3.3.5 Distributor installation............................................................................................... 26

3.4 Intake tubing and strainer installation ........................................................................................ 27

3.5 Electrical installation .................................................................................................................. 28

3.5.1 Power installation .............................................................................................................. 29

3.5.1.1 Battery installation.................................................................................................... 29

3.5.1.2 AC power installation ............................................................................................... 30

3.5.2 Flow meter installation ...................................................................................................... 31

3.5.3 Communications installation ............................................................................................. 31

Section 4 Sampler operation.......................................................................................................... 33

4.1 Power on and power off ............................................................................................................. 33

4.2 Controller overview.................................................................................................................... 33

4.2.1 Keypad description ........................................................................................................... 33

4.2.2 Navigation.........................................................................................................................34

4.2.3 Parameter selection.......................................................................................................... 34

4.3 Main menu overview.................................................................................................................. 35

4.4 Sampler programs ..................................................................................................................... 35

4.4.1 Sampler program overview............................................................................................... 36

4.4.2 Create a sampler program ................................................................................................ 37

4.4.2.1 Tips and techniques ................................................................................................. 37

4.4.3 Modify a program .............................................................................................................. 38

4.4.4 Review a program............................................................................................................. 38

4.4.5 Restore default settings .................................................................................................... 39

4.4.6 Store programs as presets................................................................................................ 39

4.4.6.1 Load a stored program............................................................................................. 39

4.5 Start or stop a program.............................................................................................................. 40

1

Table of Contents

4.6 Manual operation........................................................................................................................40

4.6.1 Collect grab samples .........................................................................................................40

4.6.2 Move the distributor arm....................................................................................................41

4.6.3 Start or stop the pump.......................................................................................................41

4.7 View data....................................................................................................................................41

4.7.1 Status screen.....................................................................................................................41

4.7.2 Status for main program ....................................................................................................42

4.7.2.1 Ready to start ...........................................................................................................42

4.7.2.2 Running/halted .........................................................................................................42

4.7.2.3 Complete ..................................................................................................................42

4.7.3 Status for stormwater program..........................................................................................42

4.7.4 Sample history...................................................................................................................43

4.7.5 Event log............................................................................................................................43

4.7.5.1 View the event log ....................................................................................................44

4.7.5.2 Erase the event log...................................................................................................44

4.8 Volume calibration......................................................................................................................44

4.8.1 Volume calibration using the liquid sensor ........................................................................45

4.8.1.1 Reset the calibration.................................................................................................45

4.8.2 Volume calibration based on time .....................................................................................46

4.8.3 Verify sample volume........................................................................................................47

4.9 Controller settings ......................................................................................................................47

4.9.1 Liquid sensor calibration....................................................................................................48

4.9.2 Set password.....................................................................................................................48

4.9.3 Tubing life indicator ...........................................................................................................49

4.9.3.1 Enable the tubing life indicator .................................................................................49

4.9.3.2 Tubing life status ......................................................................................................49

4.9.3.3 Tubing life cycle limit ................................................................................................49

4.9.3.4 Reset tubing cycles ..................................................................................................50

Section 5 Advanced sampling........................................................................................................51

5.1 Advanced sampling overview.....................................................................................................51

5.2 Advanced sampling menu..........................................................................................................51

5.3 Advanced sampling instructions.................................................................................................51

5.3.1 Send output signal at program completion ........................................................................52

5.3.2 Send output signal with sample cycle (special output) ......................................................52

5.3.3 Operate from external signal (setpoint sample).................................................................53

5.3.4 Set multiple start and stop times .......................................................................................53

5.3.5 Collect first flush stormwater samples ...............................................................................54

5.3.6 Set variable intervals.........................................................................................................55

Section 6 Maintenance.....................................................................................................................57

6.1 Upgrades, Repairs, General Maintenance .................................................................................57

6.2 Sampler cleaning........................................................................................................................57

6.3 Pump maintenance ....................................................................................................................57

6.3.1 Pump tube life....................................................................................................................57

6.3.2 Pump tube replacement ....................................................................................................58

6.3.3 Rotor removal and cleaning...............................................................................................60

6.4 Distributor arm tubing replacement ............................................................................................62

6.5 Desiccant replacement...............................................................................................................62

Section 7 Troubleshooting ..............................................................................................................65

7.1 General troubleshooting .............................................................................................................65

7.2 Error messages and notifications ...............................................................................................66

2

Table of Contents

7.3 Diagnostic tests.......................................................................................................................... 67

7.3.1 Distributor diagnostic ........................................................................................................ 67

7.3.2 Keypad diagnostic............................................................................................................. 68

7.3.3 LCD diagnostic.................................................................................................................. 68

7.3.4 Liquid sensor diagnostic ...................................................................................................68

Section 8 Replacement Parts and Accessories......................................................................... 69

8.1 Bottle kits ................................................................................................................................... 69

8.2 Containers and bottle sets......................................................................................................... 69

8.3 Replacement parts..................................................................................................................... 69

8.4 Accessories................................................................................................................................ 70

Section 9 Contact information....................................................................................................... 73

Appendix A Wiring for non-Sigma flow meters ......................................................................... 75

Index...................................................................................................................................................... 79

3

Table of Contents

4

Section 1 Specifications

Specifications are subject to change without notice.

Sampler body dimensions (see Figure 1 on page 8)

Diameter: 50.5 cm (19.9 in.)

Standard base

Compact base

Composite base

Sample bottle capacity (see Figure 2 on page 9)

Standard base

Compact base

Height: 69.4 cm (27.3 in.)
Weight: with (24) 1-L polyethylene bottles—15 kg (35.6 lb);

weight with (1) 2.5-gal polyethylene container—14.8 kg (32.6 lb)

Diameter: 44.1 cm (17.4 in.)
Height: 61 cm (24 in.)
Weight: with (24) 575-mL polyethylene bottles— 12.2 kg (27 lb);

weight with (1) 2.5-gal polyethylene container—12.9 kg (28.3 lb)

Diameter: 50.28 cm (19.8 in.)
Height: 79.75 cm (31.4 in.)
Weight: with (12) 950-mL glass bottles—15 kg (36 lb)

(24) 1 L polyethylene and/or 350-mL glass bottles
(8) 2.3 L (0.6 gal) polyethylene and/or 1.9 L (0.5 gal) glass bottles
(4) 3.8 L (1 gal) polyethylene and/or (4) 3.8 L (1 gal) glass bottles
(2) 3.8 L (1 gal) polyethylene and/or (2) 3.8 L (1 gal) glass bottles
(1) 21 L (5.5 gal) polyethylene composite container or (1) 15 L (4 gal)

polyethylene composite container or (1) 20 L (5.25 gal) polyethylene or
(1) 10 L (2.5 gal) polyethylene or (1) 10 L (2.5 gal) glass

(24) 575 mL polyethylene bottles
(8) 950 mL glass bottles
(1) 10 L (2.5 gal) polyethylene bottle
(1) 10 L (2.5 gal) glass bottle

Composite base (1) 21 L (5.5 gal) polyethylene bottle

Sampler

Sampler housing

Sample temperature range 0–60°C (32–140 °F)

Strainers

Sample intake tubing 9.5 mm (

SD900 controller

Enclosure

Power requirements 12 VDC supplied by optional AC power converter or battery

Overload protection 6 amp DC line fuse for pump

Pump Peristaltic high speed, with spring-mounted rollers

Pump rollers Nylatron,

Pump enclosure

Pump tubing 9.5 mm I.D. x 15.9 O.D. mm (3/8 in. x5/8 in.) silicone

Impact-resistant ABS, 3-section construction. Double-walled base with 2.54 cm
(1 in.) insulation—direct bottle contact with ice.

316 stainless steel in standard size, high velocity or low profile for shallow depth
applications and Teflon

3

/8 in.) I.D. vinyl or Teflon®-lined polyethylene

High-Impact, injection-molded PC/ABS blend; submersible, watertight, dust-tight,
corrosion, and ice resistant; NEMA 4X, 6, IP 67

impact/corrosion resistant

Track is injection-molded polyphenylene sulfide. Cover is polycarbonate, high
impact resistant. Pump enclosure rated IP37.

®

/316 stainless steel in standard size

5

Specifications

20,000 sample cycles under the following conditions:

• 1 L sample volume

• 1 rinse

Pump tubing life

Tubing replacement time < 1 minute using pre-cut pump tube

Maximum vertical lift to draw sample

Pump flow rate 1.25 gpm (4.8 L/min) at 3 ft (1 m) vertical lift using

Typical sample volume repeatability

Typical sample volume accuracy

Typical transfer velocity

Liquid sensor Ultrasonic

• 6 minute pacing interval

• 16 ft of

3

/8 in. intake tube

• 15 ft of vertical lift

• 70 °F sample temperature

Minimum of 28 ft, using 29 ft of

3

/8-in. vinyl intake tube at sea level at 20–25 °C

(68–77 °F)

± 5% of 200 mL sample volume using uncalibrated liquid detect with 15 feet
vertical lift,16 feet of

3

/8-in. vinyl intake tube configured for a single bottle using full

bottle shut-off at room temperature and 5000 ft elevation
± 10% of 200 mL sample volume using uncalibrated liquid detect with 15 feet

3

vertical lift,16 feet of

/8-in. vinyl intake tube configured for a single bottle using full

bottle shut-off at room temperature and 5000 ft elevation

2.9 ft/s (0.9 m/s) with 15 ft (4.6 m) vertical lift, 16 ft of
70 °F (21 °C) and 5000 ft elevation

3

/8-in. intake tube

3

/8-in. vinyl intake tubing,

Liquid sensor body Ultem® NSF ANSI standard 51 approved, USP Class VI compliant

Internal battery Lithium

Internal clock Indicates real time and date

Storage temperature –30 to 60 °C (–22 to 140 °F)

Operating temperature 0 to 50 °C (32 to 122 °F)

Storage/operating humidity 100% condensing

Graphics display

Status display

Graphic dot matrix, 128 x 64 pixel with LED backlight. Self prompting,
menu-driven program.

Indicates the number of samples collected, the number of missed samples,
inhibit mode, bottle position, time or counts to next sample and battery voltage

Multiple bottle mode: after complete revolution of distributor arm (unless

Automatic shutdown

Continuous Mode is selected).
Composite mode: after preset number of samples have been delivered to

composite container, from 1 to 999 samples, or upon full container.

User interface

Embossed keypad with one power key, four function keys, and eight navigation
keys; LED indicator

Stores up to 255 entries for sample time stamp, bottle number and sample status

Sample history

(success, bottle full, rinse error, user abort, distributor error, pump fault, purge fail,
sample timeout, power fail and low main battery)

Records Power On, Power Fail, Firmware Updated, Pump Fault, Distributor Arm

Event log

Error, Low Memory Battery, Low Main Battery, User On, User Off, Program
Started, Program Resumed, Program Halted, Program Completed, Grab Sample,
Tube Change Required

Connections Power, auxiliary, serial communications and distributor

3

Fittings Barbed fittings for

Wetted materials

Typical materials in contact with sample: stainless steel, PE, Teflon, Ultem, Silicon
or approved materials that can be tested for leaching properties

/8-in. I.D. flexible tubing

Weight 4.2 kg (9 lb, 5 oz)

6

Specifications

Dimensions 10-3/8 in. (26.4 cm) L x 11-½ in. (29.2 cm) W x 6-¾ in. (17.1 cm) H

Programming features

Password protection 6-character; protect changes to program and system settings

Multiple programs Stores up to three sampling programs

Cascade programs

Synchronized sampling Ability to simultaneously take two samples with input from a single flow meter

Sample volume Programmed in 10-mL increments from 100 to 10,000 mL

Air purge

Intake rinse option Option to rinse intake line with source liquid prior to each sample, 1 to 3 rinses.

Sample distribution Composite, samples per bottle or bottles per sample.

Set point sampling Ability to start and/or stop a sample program based on an external trigger.

User start/stop times Up to 12 user-defined start/stop times/dates, with option to restart at position 1.

Storm water program Ability to run time-based, first flush program in parallel with main sample program.

Two samplers used in combination. The second sampler is initiated after the first
sampler completes the program.

Air purged automatically before and after each sample; duration automatically
compensates for varying intake line lengths.

Current status Display parameters relevant to main or storm water programs.

Units of measure Volume: gallons or mL; length: feet (ft) or cm

Sample retries

Manual grab sample Ability to manually deliver a grab sample to a specific bottle location

Run modes Continuous or non-continuous with user-entered number of samples.

Time pacing Uniform or variable time intervals.

Flow pacing Uniform or variable flow intervals.

Auxiliary connector

Program delay

Communication

Firmware updates Ability to perform field upgrades using Sample View software

Serial interface

Option to repeat sample collection cycle from 1 to 3 times if sample not obtained
on initial attempt.

Power to Sigma 9XX, SD900, flow pulse input, external inhibit, special output,
bottle number output and program complete output.

Two formats: 1) 1–9,999 flow pulses (in one unit increments);

2) Programmable start time/date

RS232 compatible; allows on-site collection of stored data including event log and
sample history. Ability to configure remotely. Supports Modbus for SCADA
connectivity.

7

Specifications

1.1 Dimensions

Figure 1 Portable sampler dimensions

1 Portable sampler with compact base 3 Portable sampler with composite base
2 Portable sampler with standard base

8

1.2 Bottle and retainer configurations

with

8582

8584

8580

2347

1502

2189

2190

[18.75 in]

ASSEMBLY

ARM (8583)

and 476.3 mm

DISTRIBUTOR

with

[16.25 in]

ASSEMBLY

ARM (8585)

and 412.8 mm

DISTRIBUTOR

with

[9.75 in]

ASSEMBLY

ARM (8581)

and 247.7 mm

DISTRIBUTOR

RETAINER

POSITIONER/

SUPPORT

CONTAINER

RETAINER

RETAINER

TUBE (8578)

TUBE (8579)

TUBE (8577)

Specifications

1422

RETAINER

8996

RETAINER\

8561

STANDARD

8976

STANDARD

8975

COMPACT

FULL

CONTAINER

FOR 5.5 GAL.

INSULATED BASE

BASE

INSULATED

BASE

INSULATED

SHUT-OFF

POLYETHYLENE

with

247.7 mm [9.75 in]

CONTAINER

TUBE (8998)

8925SD

SD900 PORTABLE

WASTEWATER SAMPLER

WITH COVER (8890)

1918 2.5 GAL.

POLYETHYLENE CONTAINER

6559 2.5 GAL.

GLASS CONTAINER

1369 (24) 575 mL

POLYETHYLENE BOTTLES

2348 (8) 950 mL

GLASS BOTTLES

1367 4 GAL.

POLYETHYLENE CONTAINER

6498 5.5 GAL.

POLYETHYLENE CONTAINER

6494 5.5 GAL.

POLYETHYLENE CONTAINER

2215 (2) 1 GAL.

Figure 2 Bottle and retainer configurations

POLYETHYLENE BOTTLES

2214 (2) 1 GAL.

GLASS BOTTLES

2217 (4) 1 GAL.

POLYETHYLENE BOTTLES

2216 (4) 1 GAL.

GLASS BOTTLES

657 (8) 2.3 LITER

POLYETHYLENE BOTTLES

1118 (8) 1.9 LITER

GLASS BOTTLES

737 (24) 1 LITER

POLYETHYLENE BOTTLES

732 (24) 350 mL

GLASS BOTTLES

9

Specifications

10

Section 2 General Information

2.1 Safety information

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.

To 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.

2.1.1 Use of hazard information

DANGER
Indicates a potentially or imminently hazardous situation
which, if not avoided, will result in death or serious injury.

WARNING
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.

2.1.2 Precautionary labels

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12
August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European
electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to
the user.

Note: For return for recycling, please contact the equipment producer or supplier for instructions on how to return
end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or
electrocution exists.

This symbol, if 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).

Important Note: Information that requires special emphasis.

Read all labels and tags attached to the instrument. Personal injury
or damage to the instrument could occur if not observed. A symbol,
if noted on the instrument, will be included with a danger or caution
statement in the manual.

This symbol, when noted on the product, identifies the location of a fuse or current limiting device.

This symbol, when noted on the product, indicated the presence of devices sensitive to Electro-static Discharge
(ESD) and indicated that care must be taken to prevent damage with the equipment.

This symbol, if noted on the product, indicates a pinch hazard. Keep hands and fingers clear.

11

General Information

2.1.3 Confined space precautions

Important Note: The following information is provided to guide
users of Sigma SD900 Portable Samplers on the dangers and risks
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 new standard directly
affects more than 250,000 industrial sites in the U.S.A. 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 presents or has
the immediate potential to present one or more of the following
conditions:

• An atmosphere with less than 19.5% or greater than 23.5%

oxygen and/or more than 10 ppm Hydrogen Sulfide (H

• An atmosphere that may be flammable or explosive due to

gases, vapors, mists, dusts or fibers.

• Toxic materials which upon contact or inhalation, could result in

injury, impairment of health or death.

2

S).

Confined spaces are not designed for human occupancy. They
have 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 followed prior to entry
into confined spaces and/or locations where hazardous gases,
vapors, mists, dusts or fibers may be present. Before entering any
confined space check with your employer for procedures related to
confined space entry.

12

2.2 Sampler overview

2.2.1 Sampler components

General Information

DANGER
This sampler is designed for collection of aqueous samples
only. Non-aqueous samples may damage the equipment and
could result in fire and chemical hazards.

The SD900 sampler automatically collects and preserves liquid
samples. The sampler is suitable for collection of conventional and
toxic pollutants and suspended solids.

The sampler consists of three main sections (Figure 3). The center
section contains the controller. Use the controller to program the
sampler and for manual operation. The controller contains the
following components:

• Pump—operates in the forward or reverse direction to

collect a sample, rinse and purge the intake tube.

• Liquid sensor—allows the sampler to dispense accurate

sample volumes into the sample bottle(s). Can be
calibrated to specific sample conditions in the field.

• Cable connectors—for power, flow meter or

communication.

• Desiccant—absorbs internal moisture in the controller and

prevents corrosion.

Figure 3 Sampler components

1 Bottle/base section 3 Power source 5 Controller
2 Center section 4 Top cover

13

General Information

14

Section 3 Installation

3.1 Unpack the sampler

CAUTION
Only qualified personnel should conduct the tasks described
in this section of the manual.

WARNING
Explosion hazard. This product is not designed for hazardous
locations where combustible environments may exist.

The sampler can be set up for single-bottle or multiple-bottle
collection. The components for each configuration will vary (see

Figure 4 for single-bottle or Figure 5 on page 17 for multiple-bottle

collection).

Check the sampler packages for the following components:

• Sampler—includes cover, base and midsection with controller

and distributor or full bottle shut-off

• Bottle(s)—1, 2, 4, 8 or 24

• Power source—battery or AC power supply

• Pump tubing—replacement

• Sample intake tubing—vinyl or Teflon-lined

• Silicone grease packet—for desiccant maintenance

• Strainer—stainless steel or Teflon/stainless steel

• User documentation

15

Installation

Figure 4 Sampler with single bottle

1 Sampler base 7 Top cover (Cat. No. 8890)
2 Container support (Cat. No. 1502)
3 Bottle 9 Intake tubing, vinyl or teflon-lined
4 Full bottle shut-off (Cat. No. 8996) 10 AC power supply (optional)
5 Sampler center section (Cat. No. 8922) 11 Battery recharger (optional)
6 Battery (Cat. No. 8754400, optional)

1

The container support for a 2.5-gal bottle with the standard base is shown. Other bottle sizes may not use a container support.

1

8 Strainer

16

Installation

Figure 5 Sampler with multiple bottles

1 Sampler base 7 Intake tubing, vinyl or teflon-lined
2 Sample bottles 8 Strainer
3 Retainer 9 Distributor assembly
4 Sampler center section 10 AC power supply (optional)
5 Battery (Cat. No. 8754400, optional) 11 Battery recharger (optional)
6 Top cover (Cat. No. 8890)

3.2 Installation guidelines

WARNING
Explosion hazard. This product is not designed for hazardous
locations where combustible environments may exist.

Refer to the following guidelines and Figure 6 when evaluating
site location.

• If the site is located in a confined space such as a manhole,

refer to section 2.1.3 on page 12 for safety information.

• Make sure that the site has a level surface or a place to hang

the suspension harness, support bracket or spanner bar
(Figure 6).

17

Installation

• Make sure that the temperature at the site is within the

operating temperature range that is specified for the sampler.

• Make sure that the intake tube is as short as possible.

• Maximize the vertical slope of the intake tube from the sampler

to the sample source so that the tube drains completely. This
prevents cross-contamination of samples and freezing the tube.

Note: See Specifications on page 5 for limitations on transport velocity
and maximum vertical lift.

Note: If site conditions do not permit the intake tube to have a
downward slope, or if the line is pressurized, disable the liquid sensor
and calibrate the sample volume (section 4.8.2 on page 46).

• Install the strainer in the middle of the sample stream (not near

the surface or bottom) to make sure that a representative
sample is collected.

Figure 6 Mounting configuration

1 Strainer 4 Vertical lift
2 Intake tubing 5 Mounting surface
3 Suspension harness

18

3.2.1 Manhole installation

Installation

WARNING
Explosion hazard. This product is not designed for hazardous
locations where combustible environments may exist.

Installation in a manhole requires suspending the sampler above
the sample water. Refer to section 2.1.3 on page 12 for safety
information in confined spaces.

Prerequisites:

Use the following hardware to mount the sampler in a manhole.

• Spanner bar or support bracket. A spanner bar is placed inside

the manhole and is supported by pressure against the walls. A
support bracket has the same width as the manhole cover and
is placed directly under the cover for support.

• Suspension harness

Note: See Accessories on page 70 for ordering information.

Installation procedure

Complete the following steps to mount the sampler in a manhole.

3.3 Sampler base preparation

3.3.1 Clean the sample bottles

1. Connect the suspension harness to the latches on the

sampler cover.

2. Hang the suspension harness on the spanner bar or

support bracket.

3. Mount the spanner bar or support bracket in the manhole.

CAUTION
Biological sample hazard. Follow safe handling protocols
during contact with sample bottles and sampler components.
Disconnect the sampler from power to disable the pump
before handling.

The sampler is set up at the factory with a single bottle or multiple
bottle configuration. To change the bottle configuration:

• Use Figure 2 on page 9 to determine the components that

are required for the selected configuration.

• Install the full bottle shut-off device (section 3.3.2.1 on page 20)

or distributor assembly (section 3.3.3.5 on page 26).

Clean the sample bottles and caps using a brush and water with a
mild detergent before setting up the sampler. Rinse the containers
with fresh water followed by a distilled water rinse. Glass bottles
may also be autoclaved.

19

Installation

3.3.2 Single bottle installation

Use a single bottle when one composite sample is needed. A full
bottle shut-off signals the controller when to stop sample collection.
Refer to Figure 4 on page 16 for a diagram of required components.

Prerequisites:

• One plastic or glass bottle

• Retainer (Cat. No. 2190)

Note: Refer to Figure 2 on page 9 to make sure that the correct sample
bottle is used with the correct sampler base and retainer.

Installation procedure:

1. Clean the sample bottle as described in section 3.3.1.

2. If using a 2.5-gallon bottle with the standard base, place a

container support (Cat. No. 1502) in the sampler base.

3. Place the sample bottle in the center of the base.

4. Fill the sampler base with ice after the bottle is in place to

preserve samples.

3.3.2.1 Full bottle shut-off installation

Note: The time that it takes the ice to melt varies with the amount of
ice used, the external temperature and sample temperature.

5. Place the midsection over the base, making sure that the full

bottle shut-off is inside the neck of the bottle.

6. Program the sampler and install in the field.

The full bottle shut-off is typically installed at the factory and signals
the controller when the bottle is full. Complete the following steps to
replace or install a new full bottle shut-off.

Prerequisites:

• Full bottle shut-off device

Installation procedure:

1. Slide the slot in the full bottle shut-off base plate under the

retainer pin inside the center section (Figure 7). Make sure that
the tube and cable exit through the openings in the full bottle
shut-off assembly.

2. Position the thumbscrew over the threaded hole and hand

tighten to hold the device in place.

20

3. Connect the cable on the full bottle shut-off to the bottom of the

controller (Figure 7). Turn to tighten.

4. Connect the free end of the full bottle shut-off tubing to the

inside tube fitting (Figure 7).

Installation

Figure 7 Full bottle shut-off installation

1 Inside tube fitting 4 Slot in full bottle shut-off base plate
2 Threaded hole 5 Thumb screw on full bottle shut-off assembly
3 Retainer pin

3.3.3 Multiple bottle installation

Use multiple bottles to collect samples into separate bottles or into
more than one bottle. A distributor positions the sample tube over
each bottle. Position the bottles in the sampler base as shown in

section 3.3.3.1. Refer to Figure 5 on page 17 for a diagram of

required components.

3.3.3.1 Bottle number 1 position

Position the first sample bottle (number 1) under the label in the
sampler base (see Figure 8). Place the remaining bottles in
increasing number in the direction indicated by the label.

21

Installation

Figure 8 Bottle number 1 location

1 Bottle #1 location for 24 bottles 6 Standard base
2 Bottle #1 location for 8 bottles 7 Bottle #1
3 Bottle #1 location for 2 or 4 bottles 8 Elastic straps
4 Bottle #1 location in compact base 9 Retainer
5 Compact base 10 Sample bottle

3.3.3.2 Two or four bottle installation

Use 2 or 4 bottles to collect samples into one-gallon bottles.

Prerequisites:

• Two or four 1-gallon plastic or glass bottles

• Retainer (Cat. No. 2190)

Note: Refer to Figure 2 on page 9 to make sure that the correct sample
bottles are used with the correct sampler base and retainer.

Installation procedure:

1. Clean the sample bottles as described in section 3.3.1.

2. Place the bottles in the base as shown in Figure 9. Arrange the

bottles so that the first bottle is located under the label at the
point marked 2 or 4 BOT (Figure 8 on page 22).

22

3. Place the retainer over the bottles with the knobs pointing up.

Secure with the straps (Figure 9).

Installation

4. To keep samples cool, fill the sampler base with ice after the

bottles are in place.

Note: The time that it takes the ice to melt varies with the amount of
ice used, the external temperature and sample temperature.

5. Place the midsection over the base, program the sampler and

install in the field.

Figure 9 Two and four bottle installation

1 Standard sampler base (Cat. No. 8976) 3 Retainer (Cat. No. 2190)
2 1-gallon plastic or glass bottles (2x) 4 1-gallon plastic or glass bottles (4x)

3.3.3.3 Eight bottle installation

Use 8 bottles to collect samples into one-liter or two-liter bottles.

Prerequisites:

• 8 plastic or glass bottles

• Retainer (see Figure 2 on page 9 for catalog number)

Note: Refer to Figure 2 on page 9 to make sure that the correct sample
bottles are used with the correct sampler base and retainer.

Installation procedure:

1. Clean the sample bottles as described in section 3.3.1.

2. Place the bottles in the base (see Figure 8 on page 22):

• Compact base first bottle position: under the arrow label.

• Standard base first bottle position: under the 8 BOT label.

3. Place the retainer over the bottles with the knobs pointing up.

Secure with the straps.

Note: The retainer for the compact base has two pieces. Place the
larger piece in the bottom of the base.

23

Installation

4. To keep samples cool, fill the sampler base with ice after the

bottles are in place.

Note: The time that it takes the ice to melt varies with the amount of
ice used, the external temperature and sample temperature.

5. Place the midsection over the base, program the sampler and

install in the field.

Figure 10 Eight bottle installation

1 Standard sampler base (Cat. No. 8976) 5 950-mL glass bottles (8x)
2 1.9-L glass bottles or 2.3-L plastic bottles (8x) 6 Retainer bottom (Cat. No. 2347)
3 Retainer (Cat. No.1422) 7 Compact sampler base (Cat. No. 8975)
4 Retainer top (Cat. No.2347)

3.3.3.4 24 bottle installation

Use 24 bottles to collect samples into 350-mL, 575-mL or
1-liter bottles.

Prerequisites:

• 24 plastic or glass bottles

• Retainer

Note: Refer to Figure 2 on page 9 to make sure that the correct sample
bottles are used with the correct sampler base and retainer.

24

Installation

Installation procedure:

1. Clean the sample bottles as described in section 3.3.1.

2. Place the bottles in the base:

• Compact base: arrange the bottles so that the first bottle is

located under the arrow label (Figure 8 on page 22).

• Standard base: arrange the bottles so that the first bottle is

located under the label marked 24 BOT (Figure 8 on

page 22).

3. Place the retainer over the bottles with the knobs pointing up.

Secure with the straps (Figure 11).

Note: If using 350-mL glass bottles with the standard base, place the
bottles around the outside of the retainer.

4. To keep samples cool, fill the sampler base with ice after the

bottles are in place.

Note: The time that it takes the ice to melt varies with the amount of
ice used, the external temperature and sample temperature.

5. Place the midsection over the base, program the sampler and

install in the field.

Figure 11 24 bottle installation

1 Standard sampler base (Cat. No. 8976) 5 Retainer (Cat. No. 1422)
2 350-mL glass bottles (24x) 6 Compact sampler base (Cat. No. 8975)
3 Retainer (Cat. No. 2189) 7 575-mL plastic bottles (24x)
4 1-L plastic bottles (24x)

25

Installation

3.3.3.5 Distributor installation

CAUTION
Pinch hazard. Make sure the sampler is powered off before
removing or installing the distributor assembly.

The distributor automatically moves the sample tube over each
bottle during multiple bottle sampling. The distributor assembly is
typically installed at the factory. Complete the following steps to
install a new or different assembly.

Prerequisites:

• Distributor assembly—three assemblies are available. Refer to

Figure 2 on page 9 to make sure that the correct distributor

assembly is used.

Installation procedure:

1. Slide the two slots in the distributor assembly housing under

the retainer pins located on the top inside surface of the center
section (Figure 12).

2. When fully seated, hand tighten the thumbscrew on the

distributor assembly to hold the distributor in place.

3. Push the distributor tubing on the sampler fitting on the top

inside surface of the center section (Figure 12).

4. To make sure that the arm has sufficient freedom of movement,

hand-rotate the arm in a circle (both clockwise and
counterclockwise) until it hits the arm stop. If the arm does not
rotate freely, reposition the tubing to the other side of the arm
so that the arm can rotate.

Note: Do not force the arm past the arm stop. The arm stop prevents
the arm from rotating more than 360 degrees and pinching the tubing.

5. Install the mid section on the base.

6. To make sure that the distributor is aligned properly, run the

manual distributor diagnostic (see section 7.3 on page 67).

26

Installation

Figure 12 Distributor assembly installation

1 Thumbscrew 3 Retainer pins
2 Arm stop 4 Slots

3.4 Intake tubing and strainer installation

Place the intake tubing and strainer directly in the sample source to
collect samples. Refer to section 3.2 on page 17 to make sure that
samples are free from contamination and are representative of the
sample source.

Prerequisites:

• Vinyl or Teflon-lined tubing

• Connection kit (Cat. No. 2186) (for Teflon-lined tubing only)

• Strainer

Note: See Accessories on page 70 for ordering information.

Installation procedure:

1. Connect one end of the tubing to the liquid sensor fitting.

Note: Use Cat. No. 2186 (connection kit) if using Teflon-lined tubing.

2. Press the tubing into the strain relief (Figure 13).

3. Route the tubing through the sampler housing so that the

tubing is not pinched when the cover is on.

4. Connect the other end of the tubing to the strainer.

Note: Use Cat. No. 2186 (connection kit) if using Teflon-lined tubing.

27

Installation

5. Place the intake tube and strainer in the main stream of the

sample source where the water is turbulent and well-mixed.
Make sure that the intake tube does not have kinks or loops.

Figure 13 Intake tubing installation

1 Strainer 3 Strain relief
2 Intake tubing 4 Liquid sensor

3.5 Electrical installation

Connect cables to the controller as shown in Figure 14 for the
following components:

• Power (section 3.5.1)

• Flow meter or other device (section 3.5.2 on page 31)

• Communications (section 3.5.3 on page 31)

28

Figure 14 Side view of controller—connectors

1 Power connector 3 Serial connector
2 Auxiliary connector 4 Distributor/full bottle shut-off connector

Installation

3.5.1 Power installation

3.5.1.1 Battery installation

The sampler can be powered by a battery (section 3.5.1.1) or by
AC power (section 3.5.1.2).

Prerequisites:

• 12 VDC gel electrolyte (lead acid) battery plus recharger.

Note: A 2-pin to 3-pin adaptor cable (Cat. No. 8739400) may be used with
older batteries containing a 2-pin connector to power the sampler.

Installation procedure:

1. Place the battery directly behind the controller (Figure 3 on

page 13).

2. Pull the rubber straps up and over the clips at each end of the

battery to secure it to the sampler body.

3. Connect the cable from the battery to the power connector on

the controller.

29

Installation

3.5.1.2 AC power installation

Optional battery cable

If the external battery cable with bare leads (Cat. No. 2198) is used,
the following requirements must be met:

• The cable must not be altered to more than 3 meters long.

• The cable can only be connected to a 12 VDC battery.

• The maximum voltage cannot exceed 18 VDC.

• Failure to observe proper polarity when connecting the

clips to the battery will result in a blown fuse in the cable.

WARNING
Electric shock hazard. The temperature of the power supply
will increase when the sampler pump is operating. If the time
interval between sample cycles is too short, the power supply
can become overheated and result in a electric shock hazard
or power supply failure. Refer to the power supply instruction
sheet (DOC306.53.00801) to determine the time that the pump
must stay off between sample cycles to prevent overheating.

Prerequisites:

Important Note: Use only the AC power supply that is specified for
this sampler. The power supply connector must have three pins. An
adapter cannot be used to convert a older two-pin power supply for
use with this sampler.

• AC power supply (Cat. No. 8754500US)

Installation procedure:

1. Place the power supply directly behind the controller (Figure 3

on page 13).

2. Pull the rubber straps up and over the clips at each end of the

power supply to secure it to the sampler body.

3. Connect the cable from the power supply to the power

connector on the controller.

Electrical transients

When connected to an AC power source, the SD900 controller may
be temporarily upset by strong electrical transients caused by
sources such as lightning or large electrical motors. These upsets
can result in a missed sample, but the SD900 controller will recover
and continue with the sample program.

A missed sample will be recorded and can be viewed in the status,
event log or sample history screens. Remedial actions may involve
the use of a power line filter or connecting the controller to a
different branch circuit.

30

3.5.2 Flow meter installation

Installation

The sampler can be connected to a flow meter to start or stop
sampling based on the flow volume.

Prerequisites:

• Multi-purpose full cable for Sigma flow meters (or 980 half

cable for the model 980 flow meter). To connect to another
brand of flow meter, use a multi-purpose half cable and follow
the wiring instructions in Appendix A on page 75.

• Optional splitter (Figure 15) to provide additional connections.

Two or more splitters may be connected in series.

Note: See Accessories on page 70 for ordering information.

Installation procedure:

1. Connect one end of the cable to the flow meter. For connection

to the model 980 flow meter, follow the instructions in the model
980 user manual.

2. Connect the other end of the cable to the controller.

Note: For connection to a flow meter with an existing 6-pin cable, use
the auxiliary adapter cable (6-pin to 7-pin adapter)

3.5.3 Communications installation

Figure 15 Splitter

The sampler can be connected to a PC or Modbus device for data
transfer or programming.

Prerequisites:

• Serial cable (Figure 16)

Note: See Accessories on page 70 for ordering information.

Installation procedure:

1. Connect one end of the cable to the PC or Modbus device.

2. Connect the other end of the cable to the controller. The pin

assignments for the serial cable are detailed in Table 1.

31

Installation

Figure 16 Serial connector cable

Table 1 Serial cable reference

7-pin connector assignment letter Signal description DB-9 pin assignment number

B Signal ground 5
DRCD3
FTXD2
G Earth ground —

32

Section 4 Sampler operation

4.1 Power on and power off

Important Note: The AC power supply will become overheated if
the sampler pump is operated continuously. Refer to the power
supply instruction sheet (DOC306.53.00801) to determine the time
interval that must be allowed between sample cycles to prevent
damage to the AC power supply and/or to prevent a burn hazard.

4.2 Controller overview

4.2.1 Keypad description

Power on: press

Power off: press

POWER (Figure 17). The LED will blink.

POWER and select YES. The LED will stay off.

Sleep mode: automatic after two minutes of inactivity. The LED will

blink but the display will be blank. Press any key to restore
the display.

The keypad and description is detailed in Figure 17.

Figure 17 SD900 keypad

1 POWER: press to turn controller on or off 7 BACK: cancel or return to previous screen

VOLUME CALIBRATION: enter volume calibration menu 8 ARROW KEYS: moves cursor or scrolls through values

2

STOP: stops the pump or distributor if running 9 STATUS: displays current status of the sample program

3

LED: blinks when controller is powered on 10 RUN/HALT PROGRAM: starts or stops a sample program

4

MENU: displays the main menu 11 MANUAL OPERATION: manual operation of pump or

5

ENTER: selects the highlighted or entered value

6

distributor

33

Sampler operation

4.2.2 Navigation

Use the controller to access all sampler operations. Use the

ARROW keys, ENTER key and BACK key to move from one screen

to another. An arrow on the display indicates that more screens are
available (Figure 18).

Example:

1. Press the

2. Press the

Press

MAIN MENU key.

DOWN ARROW key to highlight diagnostics.

ENTER. The diagnostics menu will be shown.

3. Note the down arrow on the bottom of the display (Figure 18).

Press the down arrow until additional options are shown.

4. Press the

BACK key or MAIN MENU key to return to the

main menu.

Figure 18 Screen navigation

1 Left arrow 3 Up arrow
2 Right arrow 4 Down arrow

4.2.3 Parameter selection

Parameter selection is made in one of two ways (Figure 19):

• Selection from a list

• Enter a value using the arrow keys

Figure 19 Parameter selection

1 Select item from list 2 Enter value with arrows 3 Acceptable range

34

4.3 Main menu overview

The SD900 sampler main menu contains four options for sampler
operation, monitoring or data management. Each option is detailed
in Table 2.

Table 2 SD900 sampler menu overview

Menu option Description

Program setup Create, review, or set up a sampling program

Modify all Create or edit a sampling program
Modify selected Edit a portion of a sampling program
Review Review a sampling program
Presets Enter or select up to three program templates
Restore defaults Restore the program default selections

Status Display the status of the current program

Diagnostics Review and manage data or test the operation of components

Event log Display or delete the event log
Sample history Review the sampling history

Distrib diag

Keypad diag Test the operation of each key
LCD diag Test the operation of the LCD display screen
Liquid sensor diag Display calibration data for the liquid sensor

System setup Change controller settings or calibrate the liquid sensor

Test the ability of the distributor to detect each of the 24 bottle positions

Note: Only active when the sample program is configured for more than 1 bottle.

Sampler operation

Time/date setup Set the time (24 hour) and date

Communication

Setup base Specify whether the standard or compact base is used
Language Select one of the available languages
Liq sensor cal Calibrate the liquid sensor
Set contrast Adjust the contrast of the LCD display screen
Password setup Create or disable a password
Tubing life Enable optional alarm to indicate when pump tubing needs to be changed

Set the baud rate (19200, 38400, 57600 or 115200) and protocol (Modbus RTU or ASCII) for the
serial port

4.4 Sampler programs

Create sampler programs to operate the sampler automatically.
Once programmed, install the sampler at the sampling site. Return
to collect the samples at regular intervals or when the sampling
program is complete. Sampler programs can be stored for later
recall (4.4.6 on page 39).

35

Sampler operation

4.4.1 Sampler program overview

Table 3 outlines the menu for creating a basic sampling program.

Table 3 Basic program setup

Menu option Description

Bottles Enter bottle information.

Bottle quantity Select the number of bottles in the sampler (1, 2, 4, 8, 12 or 24).
Bottle volume Enter the volume capacity of each bottle in milliliters or gallons (0.5–99.8 gal or 50–65000 mL).

Intake tubing Enter intake tubing information.

Tubing length

Intake tube type Select the size and type of tubing (¼ in. vinyl, 3/8 in. vinyl or 3/8 in. teflon)

Program delay

Enable/disable Select enable to use a program delay or disable to omit it.

Date and time If enabled, enter the date and time when the program will start (24 hour format).

Counts

Enter the length of the intake tube from

100–3000 cm). An accurate length is necessary to obtain accurate sample volumes.

Delay starting the sampling program until specified time and day or until specified number of
counts is reached.

If enabled, enter the counts from the flow meter when the program will start (1–9999 counts). If
counts is selected and the sample pacing is later set to time, the program delay will be disabled.

the strainer to the liquid sensor (3–99 ft or

Sample pacing/collection Specify whether to collect samples at regular time intervals or regular flow volume.

Time based Collect samples at regular time intervals.

Pacing interval Enter the time interval, in hours and minutes (0:01–999:00).
Take first sample Select whether the program will start immediately or after the first time interval has passed.

Flow based Collect samples at a specified flow volume (requires external flow meter)..

Take sample every Enter the flow interval that must expire between sample cycles, in counts (1–9999 counts).
Override time Select enable to force a sample to be collected if the flow volume is unusually low.

Time

Take first sample Select whether the program will start immediately or after the first flow interval has passed.

Sample distribution For multiple bottle sampling, specify how the samples are delivered to the bottles.

Deliver samples to all Select whether each sample will be delivered to all bottles or not.

Yes Each sample will be delivered to all bottles.

End after last Program will stop after the last sample has been collected. Enter number of samples (1–999).
Continuous Sampler will continue collecting samples until stopped manually.

No Samples will be delivered to a subset of bottles (see Figure 20 on page 38).

Samples/bottle Enter the number of samples to be collected in each bottle (1–999).
Bottles/sample Enter the number of bottles that will contain the same sample.

Liquid sensor Enable/disabled. If disabled, the sample volume must be calibrated by time.

If enabled, enter the maximum time between samples (0:01–999:00). Timer is reset each time a
sample is collected based on flow counts.

Sample volume

Intake rinses Enter the number of times the intake tube will be rinsed before each sample is collected (0–3).

Sample retries Enter the number of sample retries to perform when a failure occurs (0–3).

Site ID

Advanced sampling Access the advanced sampling menu.

Done Finished creating basic sampling program. Prompts user to start or cancel the program.

Enter the volume to be collected per sample. If bottles/sample mode is selected, each bottle
receives a full sample volume (100–10,000 mL).

Enter a name for the sampling location (enter up to 12 characters). The site ID is used as the
preset name if the program is saved.

36

4.4.2 Create a sampler program

Sampler operation

Create a sampler program to set up the sampler for automatic
sampling routines.

Procedure:

1. Select

2. Select

PROGRAM SETUP from the main menu.

MODIFY ALL. The first parameter, bottle quantity, will be

shown.

3. Select the number of bottles in the sampler. The next

parameter, bottle volume, will be shown.

4. Enter the volume of the individual bottle(s). Use the

RIGHT

ARROW keys to move the cursor left or right. Use the UP

AND DOWN

ARROW keys to change the value. Change the

LEFT AND

units if necessary (gal or mL) with the arrow keys.

5. Continue to select or enter values for each parameter until

complete. Refer to Table 3 on page 36 for a complete list of all
available options for a basic sample program.

4.4.2.1 Tips and techniques

Refer to Table 4 and Figure 20 for help with sample programming.

Table 4 Tips and techniques for the basic sampling program

Parameter Tips and techniques

When 1 bottle is selected, the full bottle shut-off device is enabled and the distributor

Bottle quantity

Intake tubing

Program delay

Sample pacing—flow Each time a sample is collected based on flow counts, the override timer is reset.

is disabled. When more than 1 bottle is selected, the distributor diagnostic
is enabled.

The sampler uses the intake tubing information to determine sample volume. If the
intake tubing information is not accurate, the sample volume will not be accurate.

If the program delay is set to counts and sample pacing is set to time, the program
delay will be disabled.

If the bottle quantity is 1, the sample distribution option will not be available.
See Figure 20 for a description of samples per bottle vs. bottles per sample.

Sample distribution

Liquid sensor If the liquid sensor is disabled, the sample volume must be calibrated manually.

Sample volume

Bottles per sample—use bottles per sample when the sample volume is larger than
one bottle can hold.

Samples per bottle—the distributor arm will not advance to the next bottle until the
specified number of samples has been delivered to the current bottle.

The sample volume must be entered as mL (1 gal.= 3785.4 mL).

Make sure that
the sample volume does not exceed the bottle volume. Sample volumes are
rounded to the nearest 10 mL.

37

Sampler operation

Figure 20 Two samples per bottle (left) vs. two bottles per sample (right)

4.4.3 Modify a program

Use the modify selected option to change an individual parameter
for the currently loaded program.

Procedure:

4.4.4 Review a program

1. Select

2. The selected parameters are grouped within the following

subheadings. Select one of the available subheadings using
the up and down arrow keys.

• Bottles—quantity and volume

• Intake tubing—length and type

• Program delay

• Sample pacing/collection—time or flow based

• Sample distribution—for multiple bottle sampling

• Liquid sensor—enable/disable

• Sample volume—enter volume

• Intake rinses—enter number

• Sample retries—enter number

• Site ID—enter ID

• Advanced sampling

3. Change the parameter as shown in section 4.2.3 on page 34.

PROGRAM SETUP>MODIFY SELECTED.

38

Use the review option to view the selected parameters without
making any changes to the program.

Procedure:

1. Select

2. Press

PROGRAM SETUP>REVIEW from the main menu.

ENTER to view each entry.

4.4.5 Restore default settings

Sampler operation

Use the restore option to set all program parameters to the
default settings.

Procedure:

4.4.6 Store programs as presets

4.4.6.1 Load a stored program

1. Select

2. Select

PROGRAM SETUP>RESTORE from the main menu.

YES to restore the factory default settings.

Use the presets option to store up to three sampler programs for
later use. If any changes are made to a preset program after it is
loaded, the program must be stored again to save the changes.

Procedure:

1. Select

2. The three available presets are displayed as

PROGRAM SETUP>PRESETS from the main menu.

P1, P2 and P3.

Select one of the presets.

Note: If a program is already stored, the site ID for that program will
appear to the right of the preset number. If no preset program has
been stored, the preset field will be empty.

3. Select STORE CURRENT to store the current program as

apreset.

Use the load program option to use a preset program as the
current program.

Procedure:

1. Select

2. Select one of the presets (

3. Select

PROGRAM SETUP>PRESETS from the main menu.

P1, P2 or P3).

LOAD PROGRAM to load the selected preset as the

current program. The selected preset program will be loaded
and the display will return to the main menu. The program can
be modified or used as is.

If a preset program is loaded and then modified, the program
must be stored again (store current) to save the changes.

39

Sampler operation

4.5 Start or stop a program

Use the RUN/HALT PROGRAM key to start or stop a program.

Procedure:

4.6 Manual operation

1. Press

2. Select one of the available options:

Note: A program must be stopped before the program setup or system
setup menus can be modified.

Use manual operation to collect a grab sample, move the distributor
arm or operate the pump.

RUN/HALT PROGRAM to run, halt, resume or end a

sampler program.

•Start: starts the currently loaded program. The status

changes to running.

•Halt: stops the program temporarily. The status changes

to halted.

•Resume: if halted, the program resumes from the point at

which it was halted. The status changes to running.

•Start over: if halted, the program starts from the beginning.

The status changes to running.

• End program: ends the currently running program. The

program status changes to complete.

4.6.1 Collect grab samples

Grab samples can be collected to verify sample volume or to collect
samples without running a sampling program.

Procedure:

1. Press the

2. Select

3. Place the intake tube into the sample water. Remove the outlet

pump tube from the fitting on the sampler and place the tube
into a sample container.

4. Enter the volume to be collected and press

Note: The grab sample volume can only be modified if the liquid
sensor is enabled. if the liquid sensor is disabled, the grab sample
volume will reflect the volume defined using timed calibration.

5. The pump will purge the intake tube and then collect the

specified volume of sample. The pump will then purge the
intake tube.

To stop the pump at any time during the sample cycle, press
the

MANUAL OPERATION key.

GRAB SAMPLE.

ENTER.

STOP key.

40

4.6.2 Move the distributor arm

Sampler operation

When configured for multiple bottles, the distributor arm can be
moved manually to distribute a grab sample to a specific bottle.

Procedure:

4.6.3 Start or stop the pump

1. Press the

2. Select

3. The current bottle number will be displayed. Enter the bottle

number over which to position the distributor arm.
Press

4. The distributor arm will move to the selected bottle. To stop the

distributor arm at any time, press the

The pump can be operated outside of a sampling program to collect
a sample or purge the intake tubing.

Procedure:

1. Press the

2. Select

3. Select the direction to run the pump:

• Run forward: pump operates in the forward direction to

• Run backward: pump operates in the reverse direction to

MANUAL OPERATION key.

MOVE DISTRIB.

ENTER.

STOP key.

MANUAL OPERATION key.

OPERATE PUMP.

collect a sample and deposit into a sample container.

purge the intake line.

4.7 View data

4.7.1 Status screen

4. The screen will display pumping if the forward direction was

selected or purging if the reverse direction was selected.

5. The pump will operate until the

Data can be viewed from one of the status screens or from the
diagnostics menu.

The Status screen can be accessed by pressing the STATUS key or
by selecting

The status menu will be shown if the main and stormwater
programs run simultaneously. The status of either main program or
the stormwater program can be viewed by selecting

STORM from the status menu.

STATUS from the main menu.

STOP key is pressed.

MAIN or

41

Sampler operation

4.7.2 Status for main program

4.7.2.1 Ready to start

4.7.2.2 Running/halted

The status screen for the main program gives information about the
program depending on the status of the main program. The status
information depends on whether the program is in the ready to
start, running/halted or complete mode.

The status reads READY when a program is ready to start and also
displays the power supply voltage and the current time.

The status reads RUNNING or HALTED when a program is currently
running or has been halted by the user. Use the
to access information about the program currently running.

RIGHT ARROW key

4.7.2.3 Complete

The information displayed includes:

• Power supply voltage

• Inhibit mode (none, setpoint trigger, program delay, user

start, storm trigger, full bottle, setpoint delay)

• Sample summary (number of samples tried, missed and

remaining)

• Next sample information (sample number, bottle number of

next sample)

• Time before next sample

• Program start time

The status reads COMPLETE when a program ends after all sample
cycles have been completed or when ended by the user. Use the

RIGHT ARROW key to access information about the program that

just ended. The display includes:

• Power supply voltage

• Program end time

• Sample summary (number of samples tried and missed)

4.7.3 Status for stormwater program

42

The status screen shows information about the stormwater
program similar to that shown for the main program (Ready,
Running, Halted or Complete).

Use the
the program.

RIGHT ARROW key to access additional information about

4.7.4 Sample history

Sampler operation

Sample history displays the sample number, bottle number, result
and time/date for each sample. The following results can be shown:

• Success—the sample was drawn successfully

• Bottle full—the full bottle shut-off was activated

• Rinse error—an error occurred during the rinse cycle

• User abort—a user pressed the

• Arm faulty—the distributor arm did not move correctly

• Pump fault—a fault occurred when the pump was operating

•Purge fail—an error occurred during the purge cycle

• Sample time out—liquid not detected within the timeout period

•Power fail—a power failure occurred during sampling

If a program is running or has been halted, the sample history is
displayed for the currently running sample program. If the program
has been completed, the sample history is displayed for the most
recently completed sampling program. The sample history is
automatically erased when a new program is started.

Procedure:

1. Select

to view the sample history.

2. The sample history will list the sample numbers, bottle numbers

and brief result for each sample. Select a sample from the list
and press ENTER to view complete details.

3. The complete details for the selected sample will be shown.

DIAGNOSTICS>SAMPLE HISTORY from the main menu

STOP key to end the program

4.7.5 Event log

The event log records information on the following events:

• Power on—power was connected to the controller

•

Power fail—power was intentionally or unintentionally

disconnected from the controller without first turning power off

• Firmware update—a new version of firmware was installed

• Pump fault—a fault occurred when the pump was operating

• Arm faulty—the distributor arm did not move correctly

• Low memory battery—the internal battery should be replaced

•User on—a user turned the power on using the power key

•User off—a user turned the power off using the power key

• Program start—the sample program was started

• Program resume—a program was resumed from the halt state

• Program halt—a program was halted

• Program complete—a program was completed

•Grab sample—a grab sample was taken

• Change tube—the maximum pump cycle counts have expired

43

Sampler operation

4.7.5.1 View the event log

View the event log to see details about the events that have
been recorded.

Procedure:

4.7.5.2 Erase the event log

1. Select

the event log.

2. Select

3. The event log will list the date and event. Select an event from

the list and press ENTER to see complete details.

The top bar will show the event number and total number of
events in the event log. For example, 01/80 will be displayed for
event number 1 and a total number of 80 events.

4. The time/date, event description and any additional data for the

selected event will be displayed.

Erase the event log after event details have been reviewed to
reduce the number of entries that are shown.

Procedure:

1. Select

the event log.

2. Select

3. Select

DIAGNOSTICS>EVENT LOG from the main menu to view

DISPLAY.

DIAGNOSTICS>EVENT LOG from the main menu to erase

ERASE.

YES to confirm the deletion.

4.8 Volume calibration

Samples can be collected with the liquid sensor enabled
(recommended) or disabled. When the liquid sensor is enabled, the
volume calibration is optional. When the liquid sensor is disabled,
the volume for samples, rinses and stormwater must be calibrated
manually.

When the liquid sensor is used for volume calibration, the sensor is
adjusted to accurately measure all programmed volumes. When
the sensor is disabled and the volume is calibrated by time, all
programmed sample volumes must be calibrated individually.

Verify calibrations by measuring the volume from a grab sample
(section 4.8.3 on page 47). If calibration using the liquid sensor
does not give accurate volumes, the sensor can be calibrated
(section 4.9.1 on page 48).

For typical applications, tap water can be used for volume
calibration. If the sample composition is significantly different from
typical water samples, calibrate the sampler using the liquid to
be collected.

Calibration cannot occur while a sample program is running. All
programs must be ended before calibration.

44

4.8.1 Volume calibration using the liquid sensor

Use the volume calibration with the liquid sensor enabled to adjust
sample volumes slightly.

Procedure:

Sampler operation

1. Make sure the liquid sensor is enabled by selecting

SETUP

2. Press

>MODIFY SELECTED>LIQUID SENSOR>ENABLE.

VOLUME CALIBRATION and select CALIBRATION.

PROGRAM

3. Remove the outlet pump tube from the fitting on the sampler

and place the tube into a graduated cylinder. Place the intake
tube into the sample source or tap water.

Note: Use the sample source for best accuracy.

4. Select START.

5. The pump will purge the intake tube and then collect the

sample volume that is specified in the sampling program. The
pump will then purge the intake tube.

To halt the calibration at any time, press the

6. When the sample has been collected, select

STOP key.

DONE. Compare

the volume collected in the graduated cylinder with the sample
volume that is entered in the program setup menu.

Select

REPEAT to repeat the volume collection if necessary.

7. If the volume that was collected is different from the sample

volume in the current program, enter the volume that was
actually collected. Press

ENTER. The sensor is then adjusted to

accurately measure all programmed volumes.

4.8.1.1 Reset the calibration

To verify sample volume, collect a grab sample (section 4.8.3

on page 47).

8. Select

START to start the sampling program or CANCEL to exit

the volume calibration menu.

Use the reset cal option to restore the volume calibration to the
default factory settings.

Procedure:

1. Make sure the liquid sensor is enabled by selecting

SETUP

2. To undo the calibration, press

select

>MODIFY SELECTED>LIQUID SENSOR>ENABLE.

VOLUME CALIBRATION and

RESET CAL.

PROGRAM

3. The calibration will be reset to the default calibration and the

message “value has been reset to 0” will be shown.

45

Sampler operation

4.8.2 Volume calibration based on time

When the liquid sensor is disabled, the main sample volume, the
first flush storm volume (if storm water is enabled), and the rinse (if
rinses are > 1) must be calibrated manually.

The sample volume is calibrated for the volume specified in the
current program. If the sample volume is changed in the program,
the sample volume must be recalibrated for the new volume.

Procedure:

1. Make sure the liquid sensor is disabled by selecting

SETUP

2. Press

>MODIFY SELECTED>LIQUID SENSOR>DISABLE.

VOLUME CALIBRATION. Select one of the displayed

PROGRAM

volumes to calibrate if more than one is listed.

3. If calibrating a sample volume, remove the outlet pump tube

from the fitting on the sampler and place the tube into a
graduated cylinder. Place the intake tube into the sample
source or tap water.

4. Select

START. The pump will purge the intake tube and then

begin to collect a sample.

5. Stop the pump at the selected volume or rinse location:

• Sample volume: observe the volume in the graduated

cylinder and press the

STOP key when the volume

specified in the main program is collected.

• Rinse: observe the liquid as it travels up the intake tube

and press the

STOP key when the liquid reaches the liquid

detector.

• Storm volume: observe the volume in the graduated

cylinder and press the

STOP key when the volume

specified in the stormwater program is collected.

6. If the pump was stopped at the correct volume, select

repeat the calibration select

REPEAT.

DONE. To

46

7. Select another volume to calibrate or select

Note: All volumes must be calibrated before exiting the volume
calibration menu.

DONE.

8. When finished, connect the outlet pump tube to the tube fitting

on the sampler.

9. Select

START to start the sampling program or CANCEL to exit.

4.8.3 Verify sample volume

Sampler operation

To check the sample size after calibration use the Manual
Operation key to take a grab sample. Do not go back into
calibration to check the volume since the volume compensation is
reset to zero at the start of a calibration.

Procedure:

4.9 Controller settings

1. Press the

2. Remove the outlet pump tube from the fitting on the sampler

and place the tube into a graduated cylinder. Place the intake
tube into the sample source or tap water.

3. If the liquid sensor is enabled, enter the volume that needs to

be verified. If the liquid sensor is disabled, enter the volume
specified in the program.

4. Press

5. Compare the volume that was collected in the graduated

cylinder to the volume specified in step 3. If the volume is
acceptable, the sampler is calibrated correctly. If the volume is
incorrect, repeat the volume calibration.

Use the system setup menu to change the following parameters:

• Date and time

• Communication

• Sampler base

• Liquid sensor calibration

MANUAL OPERATION key. Select GRAB SAMPLE.

ENTER. The pump cycle will start (purge-sample-purge).

• Display contrast

• Password

• Pump tube replacement reminder

Procedure:

1. Select

2. Select one of the available parameters, for example time/date

setup. Refer to Table 2 on page 35 for an overview of the
system setup menu.

3. Make selections or change values with the arrow keys. Use the

LEFT AND RIGHT ARROW keys to move the cursor left or right.

Use the

4. Select another parameter from the system setup menu, or

press

SYSTEM SETUP from the main menu.

UP AND DOWN ARROW keys to change the value.

BACK to return to the main menu.

47

Sampler operation

4.9.1 Liquid sensor calibration

The accuracy of the liquid sensor can vary with the type of liquid
that is being sampled. For example, the volume of a highly turbid
sample may not be as accurate as that of clear water. In some
applications, the liquid sensor may be calibrated using the source
liquid to improve detector performance.

Procedure:

1. Make sure the liquid sensor is enabled by selecting

SETUP

2. Select

3. Select

>MODIFY SELECTED>LIQUID SENSOR>ENABLE.

SYSTEM SETUP>LIQ SENSOR CAL from the main menu.

PERFORM CAL.

PROGRAM

4. Place the intake tube into the sample source or tap water (if tap

water is representative of the type of samples to be collected).

Note: Use the sample source for best accuracy.

5. Select START. The pump will operate in reverse to purge the

intake tube.

6. The pump will then operate in the forward direction. Observe

the sample flow in the intake tube to verify that it passes the
liquid sensor. When the sample passes through the liquid
sensor and no bubbles are present, press the

STOP key.

7. The liquid sensor calibration is complete after the intake tube is

automatically purged. Select
menu or

Note: To restore the default calibration for the liquid sensor, select
SYSTEM SETUP>LIQ SENSOR CAL>RESTORE DEFAULT from the

main menu.

REPEAT to repeat the calibration.

DONE to exit the liquid sensor

4.9.2 Set password

A password can be enabled to restrict access to the program setup
and system setup menus.

Procedure:

1. Select

SYSTEM SETUP>PASSWORD SETUP from the main

menu.

2. Select

3. Select

ENABLE to activate a password.

YES to set a new password or NO to activate the existing

password.

4. If yes was selected, enter the old password and press

ENTER. If

changing the password for the first time, enter 900900 as the
old password.

5. Enter a new password and press

ENTER. The new password

will be required to access the menus for program setup and
system setup.

48

4.9.3 Tubing life indicator

4.9.3.1 Enable the tubing life indicator

Sampler operation

The tubing life option can be used to set a reminder to replace the
pump tubing. The user defines a maximum number of pump cycles
after which a message will be shown to replace the pump tubing.
After replacing the tubing, the current number of cycles must be
reset for the new tubing.

Enable the tubing life indicator to set a reminder for when the pump
tubing should be replaced.

Procedure:

4.9.3.2 Tubing life status

4.9.3.3 Tubing life cycle limit

1. Select

SYSTEM SETUP>TUBING LIFE from the main menu to

access the tubing life option.

2. Select

ENABLE to activate the tubing life indicator.

Use the status option to see how many pump cycles have
been completed.

Procedure:

1. If the tubing life option is not enabled, select

SYSTEM SETUP>TUBING LIFE>ENABLE>STATUS. If the tubing

life option is enabled, select

SYSTEM SETUP>TUBING LIFE>STATUS.

2. The current number of cycle counts on the pump since the

tubing life indicator was reset and the cycle limit set by the user
are both shown. Press

ENTER or BACK to return to the system

setup menu.

Use the cycle limit option to set the number of pump cycles when
the change tube reminder will be shown.

Procedure:

1. If the tubing life option is not enabled, select

SYSTEM SETUP>TUBING LIFE>ENABLE>CYCLE LIMIT. If the

tubing life option is enabled, select

SYSTEM SETUP>TUBING LIFE>CYCLE LIMIT.

2. Change the cycle limit to the number of pump cycles after

which the pump tubing should be replaced. After setting the
limit, press

ENTER to view the current status and verify the

cycle limit.

3. When the number of actual cycle counts equals the cycle limit

set by the user, the “change tube” message will be shown when
a key is pressed and an entry will be placed in the event log.

49

Sampler operation

4.9.3.4 Reset tubing cycles

When the “change tube” message is shown, replace the pump
tubing and then reset the pump cycles.

Procedure:

1. If the tubing life option is not enabled, select

SYSTEM SETUP>TUBING LIFE>ENABLE>RESET CYCLES. If the

tubing life option is enabled, select

SYSTEM SETUP>TUBING LIFE>RESET CYCLES.

2. Select

YES to reset the pump cycle count to 0. Press ENTER to

view the status screen to verify that the cycle count is set to 0.

Note: It is important to reset the pump cycles so that the change tube
message will be shown at the correct time for the new tube.

50

Section 5 Advanced sampling

5.1 Advanced sampling overview

Use the advanced sampling menu for the following operations:

• Send a 12 VDC output signal to start a second sampler,

activate a relay or for communications

• Set the sampler to start and stop from an external signal

• Set multiple start and stop times

• Set variable time intervals

• Collect first flush samples from stormwater

5.2 Advanced sampling menu

Table 5 outlines the menu for the advanced sampling operations.

Table 5 SD900 advanced sampling menu

Menu option Description

Program complete O/P

Setpoint sample Start and stop the sampler from an external source

Start on setpoint

Start/stop

Special output Send a signal to a connected device.

Send a signal at the completion of a sampling program. The signal can be used to start a second
sampler or activate a relay.

Start a sampling program when the external signal falls outside of the setpoint limits. Continue
running even when the signal falls within the setpoint limits.

Start sampling when the external signal falls outside of the setpoint limits. Stop sampling when
the signal falls within the setpoint limits.

Each sample Send signal at the completion of each sample cycle.
Sample pumping Send signal during the sample intake.
Rinse to purge Send signal during the entire sample cycle, including all purge and rinse cycles.

Start/stop times Start and stop a program at user specified dates and times.

Program start Set up to 12 start and stop times for any one program.

Stormwater Collect first flush samples at timed intervals. Can be initiated by external device.

Immediate Start program immediately.
External Start program from an external device.

Variable intervals Sample at variable time or flow intervals.

Done Exit the advanced sampling menu.

5.3 Advanced sampling instructions

To access the advanced sampling menu, select PROGRAM

SETUP

>MODIFY SELECTED>ADV SAMPLING from the main menu.

51

Advanced sampling

5.3.1 Send output signal at program completion

A 12 VDC signal can be sent through pin F of the auxiliary
connector at the completion of a sampling program or when the full
bottle shut-off is activated. The signal remains on for 61 seconds.

To enable the ability to transfer sample history to an external Sigma
950 flow meter, program complete must be disabled to enable the
bottle number output. In addition, the special output must be
enabled and configured to assert after the sample cycle is
complete.

The output signal can be used for the following purposes:

• Start another sampler. Cascading samplers require a

cascading cable (Cat. No. 8757300). The slave sampler must
enable setpoint sampling and start on external trigger.

• Activate a relay or other device when the program is complete.

Procedure:

1. Select

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

from the main menu.

2. Select

PGM COMPLT O/P>ENABLE.

3. The message “Bottle number output disabled on pin F” will be

shown. The bottle number output to send sample history to a
Sigma 950 flow meter will be disabled.

4. Select

BACK or ENTER to activate the output signal.

5.3.2 Send output signal with sample cycle (special output)

The special output option sends a 12 VDC signal through pin E of
the auxiliary connector during or after a sample cycle. When
program complete output is disabled, and program complete is
disabled (thereby enabling the program complete output). The
sample history will be transferred to the external Sigma 950.

There are three possible configurations:

• After each sample—four second pulse at the end of each

sample cycle. This option is used to signal an external device
that a sample cycle is complete.

• During sample intake—during the sample intake portion of the

cycle only, ignoring all purges and rinse cycles.

52

• During entire cycle—during the entire sample cycle including all

purge and rinse cycles.

Procedure:

1. Select

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

from the main menu.

2. Select

SPECIAL OUTPUT>ENABLE.

3. Select one of the output options:

•

AFTER CYCLE—at the completion of each sample cycle.

•

SAMPLE PUMPING—during sample intake only.

•

ENTIRE CYCLE—during entire sample cycle.

5.3.3 Operate from external signal (setpoint sample)

The setpoint sample option starts and stops the sampler after
receiving a signal from an external device such as a flow meter.
The current status indicates when the sample program is being
inhibited by an external device.

Note: Setpoint and stormwater sampling cannot be enabled at the
same time.

Procedure:

Advanced sampling

1. Select

2. Select

3. Select one of the setpoint options:

4. Enter a delay time in hours and/or minutes that must expire

5.3.4 Set multiple start and stop times

The start/stop time option creates an intermittent sampling
schedule. The program begins sampling at the first start time and
continues until the first stop time. Up to 12 start and 12 stop times
can be specified.

Procedure:

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

from the main menu.

SETPT SAMPLE>ENABLE.

•

START ON SETPT—starts a sample program when the

signal is received, ignoring all future transitions, and
continues until the program is complete.

•

START/STOP—starts a sample program when the signal is

received and stops the program when the signal is no
longer received.

before the sample program starts. The delay time will begin
when the external signal is received. The program will begin
after the delay time has passed.

1. Select

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

from the main menu.

2. Select

STRT/STOP TIME>ENABLE.

3. If the sample program is configured for multiple bottles, select

ENABLE to start sampling at bottle 1 when each start time is

reached. Select

DISABLE to continue the distribution sequence

from the last stop time.

4. Enter the time (24 hour) and date for the first start time.

5. Enter the time (24 hour) and date for the first stop time.

6. Repeat steps 4 and 5 until all start and stop times have

been entered.

53

Advanced sampling

5.3.5 Collect first flush stormwater samples

The stormwater option collects first flush (FF) samples or initial
runoff during storm conditions when pollutants are typically at a
high concentration. The first flush samples are collected at timed
intervals and can be initiated by an external device. A stormwater
program can run at the same time as the main program. The
stormwater option has the following capabilities:

• Collection of grab samples at up to 24 different time intervals.

First flush and main program flow-weighted composite samples
are automatically segregated. The first flush sample volume
may be set independently of the sample volume for the
flow-weighted composite.

• Initiation by an external device. A dry contact closure across

pins B and D on the auxiliary connector, held closed for at least
61 seconds, is required.

• When sampling with multiple bottles, the sampler can be

programmed to collect one large “first flush” sample (or small
multiple samples) at timed interval(s). The number of bottles
segregated for the first flush sample is selectable. Concurrently,
flow-weighted samples are collected from the beginning of the
storm until all remaining bottle(s) are filled, or after a user
selected time has elapsed.

Procedure:

1. Select

from the main menu.

2. Select

3. Select whether the program will be started immediately or from

an external device:

• Immediate—program starts when

• External—program starts when signaled by an

4. If configured for a single bottle, enter the number of first flush

(FF) samples to collect.

5. If configured for multiple bottles, enter the number of bottles to

be used for first flush collection.

6. Enter the multi-bottle distribution mode (Figure 20 on page 38):

• Samples per bottle: more than one sample is collected in

• Bottles per sample: more than one bottle is used to collect

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

STORMWATER>ENABLE.

RUN is pressed and

START is selected.

external device.

each bottle

each sample.

54

7. Enter the number of samples per bottle or bottles per sample.

8. Enter the time interval between each first flush sample cycle.

Variable intervals may be entered, or the same time may be
entered for each interval. The sum of the intervals is equal to

Advanced sampling

the total length of the stormwater collection period. First flush
samples are usually collected within 30 minutes of a storm.

Note: The number of intervals is determined by the number of bottles
and the distribution mode.

9. Enter the volume of each first flush sample.

5.3.6 Set variable intervals

10. Select

ENABLE to set a time limit for stormwater collection.

Enter the program time limit. The program will stop when this
time limit is reached.

Select

DISABLE to allow the program to run until complete

without a time limit.

NPDES requirements typically request monitoring for the first
three hours of a storm. If the flow volume is lower than
expected, flow-weighted sampling could continue for some time
as flow rates drop and sample intervals become longer.

Variable time or flow intervals can be set for sample cycles.
Intervals will be in hours and minutes if the sample pacing mode is
time based. Intervals will be in counts if the sample pacing mode is
flow based.

Procedure:

1. Select

PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING

from the main menu.

2. Select

VARIABLE INTVL>ENABLE.

3. Enter the time (or count) interval between each sample cycle.

Up to 99 intervals can be entered.

55

Advanced sampling

56

Section 6 Maintenance

CAUTION
Only qualified personnel should conduct the tasks described
in this section of the manual.

WARNING
Potential shock hazard. Always disconnect power to the
sampler before performing any maintenance or service.

CAUTION
Biological sample hazard. Follow safe handling protocols
during contact with sample bottles and sampler components.
Disconnect the sampler from power to disable the pump
before handling.

6.1 Upgrades, Repairs, General Maintenance

Only a qualified technician should service the sampler. For
example, steps that require knowledge of CMOS electrostatic
discharge precautions and advanced electronics training should
only be performed by a qualified technician.

6.2 Sampler cleaning

6.3 Pump maintenance

6.3.1 Pump tube life

Sampler housing

Clean the interior and exterior of the sampler housing with a damp
sponge and mild detergent. Do not use abrasive cleaners.

Sample bottles

Clean the bottles using a brush and water with a mild detergent,
followed by a fresh water rinse and a distilled water rinse. Glass
bottles may also be autoclaved.

CAUTION
Pinch hazard. Always disconnect power to the sampler before
opening the pump cover.

The tubing in the peristaltic pump will deteriorate over time from the
action of the rollers against the tubing. Be sure to replace the pump
tubing before it splits to prolong the life of the sampler and prevent
contamination of the work area.

Pump tube life depends on several factors:

• Distance from sample source. Locate the sampler as close to

the sample source as possible.

• Vertical lift. Minimize the vertical lift as much as possible.

• Intake rinses. Minimize the number of intake rinses prior to

sample collection.

• Sample retries. Minimize the number of sample retries to

successfully collect a sample.

• Sample volumes/duration. Minimize the volume of sample and

maximize the time between samples.

57

Maintenance

6.3.2 Pump tube replacement

• Constituents in the sample liquid. Grit and other abrasive solids

cause greater wear on the tube when they are squeezed
through the pump rollers.

Important Note: Use of tubing other than that supplied by the
manufacturer may cause excessive wear on mechanical parts
and/or poor pump performance.

Inspect the pump tubing and rollers on a regular basis. Replace the
tubing when deteriorated, at regular intervals or when the
“change tube” message is displayed (section 4.9.3 on page 49).

Prerequisites:

• Pump tubing—pre-cut or bulk (15 ft or 50 ft)

Note: See Replacement parts on page 69 for ordering information.

Removal procedure:

1. Turn off the controller power.

2. If using bulk pump tubing, cut a 23.25 inch piece and mark the

tube with alignment dots at the locations shown in Figure 21.

3. Disconnect the old pump tubing from the liquid sensor and from

the tube fitting on the sampler housing.

4. Loosen the thumbscrew on the pump cover and open

the cover.

5. Pull the tube from the pump tube track while turning the rotor to

remove the old tubing from the pump.

6. Clean the silicone residue from the interior of the pump housing

and from the rollers (see section 6.3.3 on page 60).

Figure 21 Pump tubing measurement

1 To liquid sensor 3 Inside pump body
2 Alignment dot 4 To tube fitting on center section

58

Maintenance

Installation procedure:

1. Connect one end of the tubing to the liquid sensor fitting. Press

the tubing into the pump tube guide (Figure 22).

2. Press the tubing into the upper pump tube track. Make sure

that the alignment dot is in line with the upper pump tube track
as shown in Figure 22.

3. Hold the tubing with one hand while rotating the pump rotor to

guide the tubing around the rotor (Figure 22). The guide pins
will push the tubing into place.

4. Press the tubing into the lower pump tube track. Make sure that

the alignment dot is in line with the lower pump tube track as
shown in Figure 22.

5. Close and secure the pump cover with the thumbscrew.

6. Connect the open tube end to the tube fitting on the sampler

(Figure 23).

Figure 22 Pump tubing installation

1 Pump tube guide 5 Rotor
2 Pump tube track (upper) 6 Pump tube track (lower)
3 Guide pin 7 Connection to liquid sensor
4 Alignment dot

59

Maintenance

Figure 23 Pump tube installed

1 Pump tube to sampler tube fitting 2 Pump tube to liquid sensor

6.3.3 Rotor removal and cleaning

Remove the pump rotor to thoroughly clean the silicone residue
from the pump tube.

Procedure:

1. Remove the pump tube (see section 6.3.2 on page 58).

2. Open the rubber flap on the end of the rotor and remove the

screw with a flat-blade screwdriver (Figure 24).

3. Remove the rotor. A collet connects the rotor to the pump shaft

and can come off when the rotor is removed (Figure 24).

4. Clean the rotor, pump tube tracks and pump housing with a

mild detergent.

5. If the collect was removed in step 3, align the recess in the

collet with the tang on the shaft and push the collet on the shaft
(Figure 24).

6. Push the rotor on the shaft and secure with the screw. Do not

overtighten the screw. Close the rubber flap on the rotor.

7. Install the pump tube (section 6.3.2 on page 58).

60

Maintenance

Figure 24 Pump rotor removal

1 Shaft 5 Rotor
2 Collet recess 6 Collet
3 Rubber flap 7 Tang
4 Screw

61

Maintenance

6.4 Distributor arm tubing replacement

The distributor arm moves over each bottle during multiple bottle
sampling. Inspect the tubing in the distributor arm on a regular
basis. Replace the tubing when deteriorated or at regular intervals.

Prerequisites:

• Tubing, distributor arm, pre-cut. Make sure that the correct tube

is used for the correct distributor and distributor arm. Refer to

Figure 2 on page 9 and to Replacement parts on page 69.

Procedure:

1. Remove the old tubing from the distributor arm.

2. Insert the new tubing into the distributor arm so that the end of

the tubing extends out of the nozzle no more than
(Figure 25).

Note: Do not let the tubing extend more than 1/8 inch past the nozzle
end of the arm. If the tubing extends too far, the tubing will get caught
on the bottles and interfere with sampling.

3. To make sure that the distributor is aligned properly, run the

manual distributor diagnostic (see section 7.3 on page 67).

Figure 25 Distributor assembly

1 Nozzle 4 Shaft
2 Distributor arm 5 Tube
3 Distributor motor

1

/8 inch

6.5 Desiccant replacement

62

A desiccant cartridge is located inside the controller to absorb
moisture and prevent corrosion. Over time the desiccant will
become saturated with moisture and should be replaced.

Monitor the desiccant color through the clear plastic window
(Figure 26). The color will change from yellow to green when the
desiccant is saturated.

Prerequisites:

• Desiccant

• Silicone grease

Note: See Replacement parts on page 69 for ordering information.

Maintenance

Procedure:

1. Unscrew and remove the desiccant holder from the controller

(Figure 26).

2. Remove the plug from the end of the desiccant tube (Figure 27)

and discard the spent desiccant.

3. Fill the desiccant tube with fresh desiccant.

Note: Fresh desiccant should be yellow.

4. Replace the plug.

5. Apply grease to the O-ring (Figure 27).

6. Replace the desiccant tube in the controller.

Figure 26 Side view of controller—pump and desiccant

1 Desiccant window 2 Peristaltic pump

Figure 27 Desiccant holder

1 Plug 3 O-ring
2 Desiccant tube

63

Maintenance

64

Section 7 Troubleshooting

7.1 General troubleshooting

Refer to the information in Table 6 when a problem with the
sampler occurs.

Table 6 SD 900 general troubleshooting information

Problem Cause Solution

Instrument will not power on with AC
power.

Instrument will not power on with DC
power.

Battery life is short.

Sampler will not create sufficient lift.

Inaccurate sample volumes.

Problem may be with the controller,
power supply or main power source.

Problem with circuit breaker.

Problem with electrical outlet.

Defective power supply. Replace power supply or use a battery.
Defective controller. Contact the service center.
Battery is not charged. Replace with a fully charged battery.

Battery does not hold charge.

Defective controller. Contact the service center.

Insufficient voltage.

Battery power drains quickly.

Incorrect sampler base configuration.

Strainer is not completely submerged.

Intake tube has a leak. Replace intake tube.
Pump tube is worn. Replace pump tube.
Pump roller assembly is worn. Contact the service center.

Incorrect volume calibration.

Incorrect intake tube length is
programmed in the sampler.

Intake tube is not completely purging.

Stainer is intermittently submerged.

Worn pump tubing and/or roller
assembly.

When the liquid sensor is disabled,
variable suction heads will cause
variable sample volumes.

Liquid sensor is not operating properly.

Isolate components to determine which
component has the problem.

Check the circuit breaker for the main
power.

Check to see if the outlet is receiving
power.

Replace battery or use an AC power
supply.

The lead-acid battery should hold

12.6 V to 13.4 V when fully charged.
Fully charge the battery and allow to

stand for one hour. If the voltage drops
below 12.5 V, replace the battery.

Set sampler base to portable option
(Table 2 on page 35).

Make sure the strainer is completely
submerged.

Repeat the volume calibration and take
a grab sample to verify accuracy.

Measure the intake tube length and
enter in the program setup menu.

Make sure the intake tube is on a
downward slope as vertical as possible,
with no low points where liquid can
accumulate.

Install the shallow depth strainer
(Cat. No. 2071 or 4652).

Replace pump tubing; contact service
center for roller assembly.

Enable the liquid sensor and complete a
volume calibration.

Calibrate the liquid sensor using the
same liquid that is being sampled.

65

Troubleshooting

7.2 Error messages and notifications

Messages will be shown in the controller display when errors occur
or to confirm that an operation is complete. Refer to Table 7 for a
description of the possible messages.

Table 7 SD 900 error and information messages

Message Reason Action

ERROR
WRONG RANGE

BOTTLE NUMBER
OUTPUT DISABLED
ON PIN F

NOT ALLOWED
CANNOT ENABLE SETPOINT SAMPLING
AND STORM WATER

NOT PERMITTED.
END THE PROGRAM FIRST TO ACCESS
THIS FEATURE

NEED TO CAL.
LIQUID SENSOR IS DISABLED.
CAL IS REQUIRED!

The value that was entered is outside of
the acceptable range.

Message is displayed when program
complete output is enabled. The bottle
number output on the auxiliary port
(pin F) is automatically disabled.

An attempt was made to enable setpoint
sampling and stormwater sampling at
the same time.

An attempt was made to access a menu
such as program setup, system setup,
volume calibration or manual operation
while a program was running.

The liquid sensor was disabled and a
manual volume calibration is required.

Press
number that is within the range specified
on the bottom of the screen.

Press BACK or ENTER to keep program
complete output enabled. If bottle
number output is preferred, disable the
program complete output.

Disable setpoint sampling or stormwater
sampling, then enable the preferred
option.

Press

END PROGRAM or CANCEL to continue

the program.

Calibrate all volumes as specified in

section 4.8 on page 44.

BACK or ENTER. Enter a valid

BACK or ENTER and select

NEED TO CAL.
LIQUID SENSOR IS ENABLED. SENSOR
REQUIRES CAL

DISTRIBUTOR
MOVE IS COMPLETE

NOT ALLOWED.
1 BTL CONFIGURED DISTRIBUTOR NOT
RELEVANT.

RESET CAL.
VALUE HAS BEEN RESET TO 0.

NOT ALLOWED.
ENABLE LIQUID SENSOR TO
PERFORM CAL

BOTTLE NUMBER OUTPUT ENABLED ON
PIN F

CANNOT ENABLE.
PGM START/STOP AND STORM WATER
AT SAME TIME

FAULT.
PUMP FAULT

ALARM.
CHANGE TUBE

FAULT.
ARM FAULTY

The liquid sensor must be calibrated.

Confirmation that the distributor arm
was moved to a specific bottle position
and the move is complete.

An attempt was made to move the
distributor when the program setup was
set to a single bottle.

Confirmation that volume calibration
with the liquid sensor enabled was reset
to 0 in the volume calibration menu.

An attempt was made to calibrate the
liquid sensor when the liquid sensor was
disabled.

Calibrate the liquid sensor as specified
in section 4.9.1 on page 48.

BACK or ENTER to acknowledge

Press
the information.

Change the bottle number configuration
in the program setup menu before
moving the distributor.

Press BACK or ENTER to acknowledge
the information. The liquid sensor is no
longer calibrated.

Enable the liquid sensor in the program
setup menu.

Confirmation that the bottle number
output on pin F of auxiliary port is
enabled when the program complete

BACK or ENTER to acknowledge

Press
the information.

output is disabled.

An attempt was made to enable
start/stop time and stormwater at the
same time.

Disable start/stop time or stormwater in
the advanced sampling menu, then
enable the preferred option.

The pump failed to operate properly. Examine the pump for obstructions.

The specified maximum number of
pump cycles have expired. The pump
tube should be changed.

The distributor arm failed to operate
properly.

Change the pump tube and reset the
maximum number of pump cycles
(section 4.9.3 on page 49).

Make sure the distributor arm is
connected properly and can move freely
in both directions.

66

Table 7 SD 900 error and information messages (continued)

Message Reason Action

Troubleshooting

ERASING LOG.
PLEASE WAIT

ERROR
WRONG PWD

PGM DELAY DISABLED

STARTING
PLEASE WAIT

ALARM
LOW BATTERY

ALARM
LOW MEMORY BATTERY

ERROR
INVALID SELECTION

7.3 Diagnostic tests

Confirmation that the event log is being
cleared.

An incorrect password was entered.

A program delay was set based on
counts but sample pacing/collection was
set based on time. The program delay is
automatically disabled.

Confirmation that a program is starting. Wait for the program to start.

The main battery power is low.

The internal memory battery is low Contact the service center.

The selection is not compatible with the
program setup. For example, the base
selected in the system setup menu must
be compatible with the number of bottles
in the program setup menu.

Wait for the log to be erased.

Press

BACK or ENTER and enter the

correct password.

To use a program delay in counts, set
the sample pacing/collection to flow
based.

Replace the battery with a fully-charged
battery.

Select a value that is compatible with
the values specified in the program
setup menu.

Use the diagnostics option to test for correct operation of the
following components:

7.3.1 Distributor diagnostic

• Distributor (section 7.3.1)

• Keypad (section 7.3.2)

• Display (section 7.3.3)

• Liquid sensor (section 7.3.4)

An overview of the available diagnostic tests is shown in Table 2 on

page 35.

Use the distributor diagnostic to check for proper operation of the
distributor. The test moves the distributor arm to all 24 bottle
positions regardless of the number of bottles that are specified in
the program.

Note: The distributor diagnostic is only active when the sample program is
configured for multiple bottles.

Procedure:

1. Select

DIAGNOSTICS>DISTRIB DIAG from the main menu. The

distributor arm will begin moving to all positions.

2. The display will show

ARM MOVING and then return to the

diagnostics menu when the test is complete.

If the arm is not connected or is not able to move to all
positions, the message “arm faulty” will be shown. Review

section 3.3.3.5 on page 26 and section 6.4 on page 62 to make

sure the distributor and arm are set up properly.

67

Troubleshooting

7.3.2 Keypad diagnostic

Use the keypad diagnostic to make sure each key on the keypad is
operating correctly.

Procedure:

7.3.3 LCD diagnostic

7.3.4 Liquid sensor diagnostic

1. Select

2. Press each key on the keypad (except the

display should show the name of the key that was pressed.

3. To exit the test, press

Use the LCD diagnostic to make sure the controller display is
operating correctly.

Procedure:

1. Select

the test.

2. Observe the display. Each row will show SD900 and then each

pixel will darken. When complete, the display will briefly show
“test complete”.

Use the liquid sensor diagnostic to show the current calibration
information for the liquid sensor.

Procedure:

DIAGNOSTICS>KEYPAD DIAG from the main menu.

BACK key). The

BACK key.

DIAGNOSTICS>LCD DIAG from the main menu to begin

1. Select

2. The display will show the input frequency (MHz), the output

voltage (VDC) and the signal to noise ratio for the current
calibration.

DIAGNOSTICS>LIQ SENSE DIAG from the main menu.

68

Section 8 Replacement Parts and Accessories

8.1 Bottle kits

Description Catalog number

Single bottle kits (include full bottle shut off):

10-L (2.5-gal) glass bottle and full bottle shut off (for standard base) PS010025
10-L (2.5-gal) poly bottle and full bottle shut off (for standard base) PS010030
10-L (2.5-gal) glass bottle and full bottle shut off (for compact base) PC010025
10-L (2.5-gal) poly bottle and full bottle shut off (for compact base) PC010030
15-L (4.0-gal) poly bottle and full bottle shut off (for standard base) PS010040
21-L (5.5-gal) poly bottle and full bottle shut off (for standard base) PS010055

Multi-bottle kits (include retainer and distributor arm):

(24) 350-mL glass bottles, retainer and distributor arm (for standard base) PS240350
(24) 575-mL poly bottles, retainer and distributor arm (for compact base) PC240575
(24) 1-L poly bottles, retainer and distributor arm (for standard base) PS241000

8.2 Containers and bottle sets

Description Catalog number

Container, 10-L (2.5-gal) glass with cap 6559
Container, 10-L (2.5-gal) poly with cap 1918
Container, 15-L (4-gal) poly with cap 1367
Container, 21-L (5.5-gal) poly with cap 6498
Container, 20-L (5.25 -gal) poly with cap 6494
Bottle set, (24) 1-L poly with caps 737
Bottle set, (24) 350-mL glass with caps 732
Bottle set, (24) 575-mL poly with caps 1369
Bottle set, (8) 2.3-L (0.6-gal) poly with caps 657
Bottle set, (8) 1.9-L (0.5-gal) glass with caps 1118
Bottle set, (8) 950-mL glass with caps 2348
Bottle set, (4) 3.8-L (1-gal) poly with caps 2217
Bottle set, (4) 3.8-L (1-gal) glass with caps 2216
Bottle set, (2) 3.8-L (1-gal) poly with caps 2215
Bottle set, (2) 3.8-L (1-gal) glass with caps 2214

8.3 Replacement parts

Description Catalog number

Desiccant, refill, 1.5 pounds 8755500
Desiccant cap assembly 8754900
Desiccant tube 8742100
Desiccant tube assembly 8741500
Desiccant tube assembly with grease packet 8755600
Grease, silicone, 7 grams (0.25 oz) 000298HY
Pump Cover/Door Assembly 8755400
Tubing for Distributor Arm, 16¼-inch, for assembly 8584 (arm 8585) 8579

69

Replacement Parts and Accessories

8.3 Replacement parts (continued)

Description Catalog number

Tubing for Distributor Arm, 17-inch, for assembly 8580 (arm 8581) 8577
Tubing for Distributor Arm, 18¾-inch, for assembly 8582 (arm 8583) 8578
Tubing for Peristaltic Pump, pre-cut for portable sampler 8753800
Tubing for Peristaltic Pump, 15 ft 4600-15
Tubing for Peristaltic Pump, 50 ft 4600-50

3

Tubing, Teflon-lined intake
Tubing, Teflon-lined intake 3/8-in., 25 ft 922
Tubing, Teflon-lined intake
Tubing, vinyl intake 3/8-in., 25 ft 920
Tubing, vinyl intake
Tubing, vinyl intake, 3/8-in., 500 ft 924
Tubing Connection Kit, for Teflon-lined PE tubing 2186

3

/8-in., 10 ft 921

3

/8-in., 100 ft 925

/8-in., 100 ft 923

8.4 Accessories

Description Catalog number

3-way Splitter Assembly 939
Battery, gel electrolyte (lead acid), with 3 pin connector, 12 VDC 8754400
Battery Charger, gel electrolyte, with 3 pin connector, 90–250 VAC 8753500US
Base, standard assembly 8976
Base, compact assembly 8975
Base, 5.5-gal. poly container 8561
Cable, multi-purpose full, 7 pin, 10 ft 8757100
Cable, multi-purpose full, 7 pin, 25 ft 8757000
Cable, multi-purpose half, 7 pin, 10 ft 8756900
Cable, multi-purpose half, 7 pin, 25 ft 8756800
Cable for Cascade Sampling, 7 pin, 25 ft 8757300
Cable for 980 instrument, half, 7 pin, 10 ft 8758100
Cable for 980 instrument, half, 7 pin, 25 ft 8757200
Cable, battery adaptor (2 to 3 pin) 8739400
Cable, auxiliary adaptor (6 to 7 pin) 8758000
Cable, serial (DB9 to 7 pin), 3 meters 8758200
Distributor Assembly with Arm, 24 bottle, compact base 8580
Distributor Assembly with Arm, 24 bottle standard base 8582
Distributor Assembly with Arm, 2, 4, and 8 bottle base and 8 bottle compact base 8584
Distributor Arm for Assembly 8580 8581
Distributor Arm for Assembly 8582 8583
Distributor Arm for Assembly 8584 8585
Flow-thru Module 2471
Full Bottle Shut-off 8996
Manhole Spanner Bar, 18–28 inches 9542
Manhole Spanner Bar, 28–48 inches 9557
Manhole Support Bracket, 18–27 inches 5713000

70

Replacement Parts and Accessories

8.4 Accessories (continued)

Description Catalog number

Power Supply, 3 pin connector, 100–120 VAC 8754500US
Retainer, (8), (24) poly/glass bottles 1422
Retainer, (24) 350 mL glass bottles 2189
Retainer, (8) 950-mL glass bottles 2347
Retainer, 1-gal. glass/poly bottles 2190
Retrofit Kit, SD900 controller assembly for portable samplers (includes controller, pump tube, manual) 8759400
Sampler Locking Assembly 1354
SampleView CD with RS-232 Cable 8757500
Strainer, all 316 stainless steel, 6.0 in. long x 0.406 in. OD 2071
Strainer, all 316 stainless steel, 7.94 in. long, x 1.0 in. OD 2070
Strainer, stainless steel, 3.9 in. long x 0.406 in. OD 4652
Strainer, Teflon®/stainless steel, 5.5 in. long x 0.875 in. OD 926
Strainer, Teflon/stainless steel, 11.0 in. long x 0.875 in. OD 903
Support, container, for standard base, 2.5 gal. glass and 3 gal. poly 1502
Suspension Harness 1355

71

Replacement Parts and Accessories

72

Section 9 Contact information

United States:
Hach Company

P.O. Box 389
Loveland, Colorado
80539-0389 U.S.A.
Tel [phone]
Fax [phone]
[e-mail]
www.hach.com

Hach Lange EU subsidiaries:

HACH LANGE LTD

Pacific Way
Salford
GB-Manchester, M50 1DL
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.co.uk

DR. BRUNO LANGE AG

Juchstrasse 1
CH-8604 Hegnau
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ch

Repair Service in the
United States:

Authorization must be
obtained before sending
any items for repair.

HACH Company
Tel [phone]
or [phone]
Fax [phone]
[e-mail]

HACH LANGE LTD

Unit 1, Chestnut Road
Western Industrial Estate
IRL-Dublin 12
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ie

HACH LANGE FRANCE
S.A.S.

33, Rue du Ballon
F-93165 Noisy Le Grand
Tél. [phone]
Fax [phone]
[e-mail]
www.hach-lange.fr

Canada, Latin America,
sub-Saharan Africa, Asia,
Australia and New Zealand:

Hach Company World
Headquarters,
P.O. Box 389
Loveland, Colorado,
80539-0389 U.S.A.
Tel [phone]
Fax [phone]
[e-mail]

DR. BRUNO LANGE GES.
MBH

Industriestraße 12
A-3200 Obergrafendorf
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.at

HACH LANGE SA

Motstraat 54
B-2800 Mechelen
Tél. [phone]
Fax [phone]
[e-mail]
www.hach-lange.be

Europe, Middle East and
Mediterranean Africa:
Hach Lange GMBH

Willstätterstraße 11
D-40549 Düsseldorf
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.de

DR. LANGE NEDERLAND
B.V.

Laan van Westroijen 2a
NL-4003 AZ Tiel
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.nl

HACH LANGE E.P.E.

27, Avlidos str
GR-115 27 Athens
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.gr

HACH LANGE APS

Åkandevej 21
DK-2700 Brønshøj
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.dk

HACH LANGE LDA

Av. do Forte nº8
Fracção M
P-2790-072 Carnaxide
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.pt

HACH LANGE KFT.

Hegyalja u. 7-13.
H-1016 Budapest
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.hu

HACH LANGE AB

Vinthundsvägen 159A
SE-128 62 Sköndal
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.se

HACH LANGE SP.ZO.O.

ul. Opolska 143 a
PL-52-013 Wrocław
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.pl

HACH LANGE S.R.L.

Str. Leonida, nr. 13
Sector 2
RO-020555 Bucuresti
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ro

HACH LANGE S.R.L.

Via Riccione, 14
I-20156 Milano
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.it

HACH LANGE S.R.O.

Lešanská 2a/1176
CZ-141 00 Praha 4
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.cz

HACH LANGE

8, Kr. Sarafov str.
BG-1164 Sofia
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.bg

HACH LANGE S.L.U.

Edif. Arteaga Centrum
C/Larrauri, 1C- 2ª Pl.
E-48160 Derio/Vizcaya
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.es

HACH LANGE S.R.O.

Roľnícka 21
SK-831 07 Bratislava –
Vaj nory
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.sk

HACH LANGE SU
ANALÝZ SÝSTEMLERÝ
LTD.ÞTÝ.

Hilal Mah. 75. Sokak
Arman Plaza No: 9/A
TR-06550 Çankaya/ANKARA
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.com.tr

HACH LANGE D.O.O.

Fajfarjeva 15
SI-1230 Domžale
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.si

ÇÁCH LANGE E.Ð.Å.

Αυλίδος 27
GR-115 27 Αθήνα
Τηλ. [phone]
Fax [phone]
[e-mail]
www.hach-lange.gr

73

74

Appendix A Wiring for non-Sigma flow meters

CAUTION
Only qualified personnel should conduct the tasks described
in this section of the manual.

Prerequisites:

• Multi-purpose half cable

• Auxiliary adapter cable (6-pin to 7-pin adapter)

• Optional splitter (Figure 15 on page 31) to provide additional

connections. Two or more splitters may be connected in series.

See Accessories on page 70 for ordering information.

Procedure:

Use the auxiliary connector diagram in Figure 28 and wiring
information in Table 8 to wire the flow meter to the controller.

Pin

A

Signal
description

12 VDC
power
output

Figure 28 Auxiliary connector (7-pin)

Table 8 Half-cable wiring information for non-Sigma flow meters

Wire
color

Red

Purpose Rating

1

Power supply positive output. Powers
an external device or flow meter. Must
be used in conjunction with pin B
(common).

Power supply negative return. When
using AC power, this pin is connected to
earth ground.

This output is protected by a thermal current limiter.
12 VDC nominal output at 1 A maximum when using

battery 8754400 to power the sampler.
15 VDC regulated output at 0.5 A maximum when

using AC power to power the sampler.B Common Black

75

Wiring for non-Sigma flow meters

Table 8 Half-cable wiring information for non-Sigma flow meters (continued)

Signal

Pin

description

C Pulse input Brown

Liquid level
actuator/aux

D

iliary control
input

Special

E

output

Wire
color

Orange

Yell ow

Purpose Rating

1

This input triggers sample collection.
The signal may be generated by:

• An external flow meter or other

device with an appropriate control
output.

• Simple floating (dry) contact

closure.

The sampler is capable of accumulating
from 1 to 9,999 input pulses. This count
is advanced at the beginning (rising
edge) of the input signal. Each contact
closure output from a flow meter
represents a specific flow volume.

The contact closure signal is sent more
frequently for high flow rates, and less
frequently for low flow rates. The
sample frequency will increase as the
flow rate increases and decrease as the
flow rate decreases, thus taking
samples in proportion to flow rate.

This input sends a signal to the
microprocessor inside the sampler
causing it to "wake up" and begin or
resume its sampling program.
Applications for this input include:

A simple float level switch (dry contacts)
may be used to actuate the sampler
when liquid is present.

Start this sampler after another sampler
has finished its program.

Start the sampler in response to some
user-defined condition from an external
device that provides an appropriate
control signal. For example a pH meter
could be used to initiate sampling in
response to a high or low pH condition.

Normally at 0 VDC, this line goes to +12
VDC upon any of the selected events
described in section 5.3.2 on page 52.

This input responds to a positive pulse with respect
to Common (pin B). It is terminated (pulled low) to
Common (pin B) through a series 1 kΩ resistor and

7.5 V zener diode.
Absolute maximum input: 0 to 15 VDC with respect

to Common (pin B). Signal required to activate input:
5–15 V positive going pulse with respect to common

(pin B) of at least 50 millisecond duration. Source
impedance of driving signal should be less than
5kΩ.

Dry contact (switch) closure of at least 50 millisecond
duration between pin A (12 VDC) and pin C (Pulse
Input). Contact resistance should be less than 5 kΩ.
Contact current will be less than 8 mA DC.

This input is terminated (pulled high) to an internal
+5 V supply through an 11 kΩ resistance and
protected by a series 1 kΩ resistor and 7.5 V zener
diode terminated to Common (pin B). The input
responds to a high to low voltage transition with a
logic low pulse width of at least 50 milliseconds.

Absolute maximum input:
0 to 15 VDC with respect to Common (pin B). Signal

required to activate input:
External logic signal having 5-15 VDC power source.

The drive signal should be normally high. The
external driver should be capable of sinking 0.5 mA
@ 1 VDC maximum at the logic low level.

A logic high signal from a driver with power source of
greater than 7.5 V will source current into this input
at the rate of: I = (V - 7.5)/1000 where:

I is the source current
V is the power supply voltage of the driving logic.
Dry contact (switch) closure of at least 50 millisecond

duration between pin D and pin B (common).
Contact resistance should be less than 2 kΩ. Contact
current will be less than 0.5 mA DC.

This output is thermally protected against short
circuit currents to common (pin B). Limit external
load current to 0.2 A.

The output is normally logic low (0 VDC) with respect
to common (pin B). Active high output levels are:

15 VDC nominal when using AC power to power the
sampler

12 VDC nominal when using battery 8754400 to
power the sampler.

76

Wiring for non-Sigma flow meters

Table 8 Half-cable wiring information for non-Sigma flow meters (continued)

Pin

Signal
description

Wire
color

Purpose Rating

1

Normally an open circuit, this line
switches to ground for 90 seconds at
the conclusion of the sampling program.

F

Program
complete
output

Green

Used to “wake up” another sampler to
take over sampling or to signal an
operator or data logger upon the
completion of the sampling program.
This pin is also used to signal the bottle
full condition in a single
bottle/continuous mode, and will

This is an open collector output with 18 V zener
clamp diode for overvoltage protection. The output is
active low with respect to common (pin B).

Absolute maximum ratings for output transistor:
Sink current = 25 mA DC maximum.
External pull-up voltage = 18 VDC maximum.

transmit the bottle number to a flow
meter if the program complete signal
is disabled.

Not intended for use as safety ground. Do not use as
a current carrying conductor.

Cables greater than 3 meters length connected to
the sampler auxiliary port should be shielded.

Regardless of length, if a shielded cable is
connected to the auxiliary port, the shield (drain) wire
should only be connected to earth ground at one end

GShield N/A

Provides connection to earth ground
when the sampler is powered using
AC power. This connection is only
intended for use in controlling RF
emissions and susceptibility.

of the cable to avoid ground loop currents.

1

Wire color refers to the colors of multi-purpose cables Cat. No. 8756800 and 8756900.

77

Wiring for non-Sigma flow meters

78

Index

A

AC power

installation
accessories
advanced sampling

menu overview

operate from external signal

output signal

stormwater

variable intervals
auxiliary connector

output signal

.......................................................... 30

.............................................................. 69

.................................................. 51

.............................. 53

...................................................... 52

......................................................... 54

................................................ 55

...................................................... 52

B

battery installation .................................................... 29

bottles

bottle no. 1 position

cleaning

eight bottle installation

four bottle installation

list of

setting the number of

twenty four-bottle installation

two bottle installation
bottles per sample

............................................................. 19

.................................................................. 69

........................................... 21

....................................... 23

......................................... 22

......................................... 38

............................. 24

......................................... 22

.................................................... 38

C

calibration

liquid sensor

manual calibration

sample volume
cascade sampling
cleaning

bottles

pump rotor
communication

serial connector
containers. See bottles

...................................................... 48

............................................. 46

.................................................. 44

.................................................... 52

................................................................ 19

......................................................... 60

................................................. 31

D

data

event log

sample history

viewing
default settings
desiccant

replacement
diagnostic tests

............................................................ 43

................................................... 43

............................................................... 41

......................................................... 39

....................................................... 62

........................................................ 67

distributor

arm tube replacement
diagnostic test
installing
manual operation of

.................................................... 67

............................................................. 26

........................................ 62

........................................... 41

E

error messages ........................................................ 66

event log

.................................................................. 43

F

flow meter

installation
trigger sampler operation with

full bottle shut-off installation

.......................................................... 31

........................... 53

.................................... 20

G

grab samples ..................................................... 40, 47

I

ice for sample preservation ...................................... 20

intake tubing

installing
specifying type and length

............................................................. 27

................................. 38

K

keypad ..................................................................... 33

L

LED indicator ........................................................... 33

liquid sensor

calibration of
diagnostic test
volume determination with

...................................................... 48

.................................................... 68

................................. 44

M

maintenance

desiccant replacement
distributor tube replacement
pump rotor cleaning

pump tube replacement
manhole installation
manual operation

distributor

grab samples

pump

.................................................................. 41

................................................. 19

........................................................... 41

..................................................... 40

....................................... 62

.............................. 62

........................................... 60

..................................... 58

O

output signal

at each sample cycle

at program completion

......................................... 52

....................................... 52

79

Index

P

password .................................................................. 48

preserving samples
presets
pump

..................................................................... 39

cleaning the rotor
manual operation of
tube installation
tube replacement

.................................................. 20

............................................... 60

........................................... 41

.................................................. 59

............................................... 58

R

rotor .......................................................................... 60

S

safety

confined space precautions

general information
sample history
sample program

basic menu overview

bottle number

cascade sampling

default settings

history

intake tubing

multiple start/stop times

reviewing

starting or stopping

status
sampler

components

manhole installation

mounting

replacement parts
sampler setup

eight bottles

twenty four bottles

two or four bottles

.......................................................... 43

..................................................... 38

.................................................. 39

................................................................ 43

...................................................... 38

........................................................... 38

................................................................. 41

....................................................... 13

............................................................ 17

....................................................... 23

............................................ 11

.............................................. 52

............................................ 40

........................................... 19

.............................................. 69

............................................. 24

.............................................. 22

............................... 12

......................................... 35

..................................... 53

samples per bottle
SD900 controller

advanced software overview
diagnostic tests
keypad
passwords
software overview
turning on or off

serial connector

pin assignments
setpoint sampling
spanner bar
stormwater sampling

first flush samples

menu overview

............................................................... 33

.................................................... 38

............................. 51

.................................................. 67

......................................................... 48

.............................................. 35

................................................. 33

................................................. 31

..................................................... 53

.............................................................. 19

.............................................. 54

.................................................. 51

T

templates. See presets
troubleshooting

diagnostic tests

table

................................................................... 65

tubing replacement reminder
tubing, distributor
tubing, intake

installing
tubing, pump

installation

replacement

tubing life

............................................................. 27

.................................................. 67

................................... 49

..................................................... 62

.......................................................... 59

....................................................... 58

........................................................... 57

V

variable intervals ...................................................... 55

volume

bottle

.................................................................. 37

calibration

manual calibration

verify sample volume

.......................................................... 44

............................................. 46

......................................... 47

80