Hach AS950 AWRS Instruction Manual

DOC026.98.80492
AS950 Portable Sampler
06/2016, Edition 5
Basic Installation and Maintenance
Grundlegende Installation und Wartung
Installazione e manutenzione base
Installation de base et maintenance
Instalación y mantenimiento básicos
Instalação e Manutenção Básica
Základy instalace a údržby
Standaard installatie en onderhoud
Podstawowa instrukcja montażu i konserwacji
Основен монтаж и поддръжка
Alapvető telepítés és karbantartás
Informaţii generale despre instalare şi întreţinere
Базовая установка и обслуживание
Temel Kurulum ve Bakım
Základná inštalácia a údržba
Osnovna namestitev in vzdrževanje
Osnovne upute za ugradnju i održavanje
Βασική εγκατάσταση και συντήρηση
Grundläggande Installation och Underhåll

English..............................................................................................................................3
Deutsch.......................................................................................................................... 25
Italiano............................................................................................................................ 49
Français......................................................................................................................... 72
Español.......................................................................................................................... 96
Português.................................................................................................................... 119
Čeština......................................................................................................................... 142
Nederlands................................................................................................................. 165
Polski............................................................................................................................ 188
български................................................................................................................... 212
Magyar......................................................................................................................... 236
Română....................................................................................................................... 260
Русский........................................................................................................................283
Türkçe...........................................................................................................................308
Slovenský jazyk......................................................................................................... 330
Slovenski..................................................................................................................... 353
Hrvatski........................................................................................................................ 375
Ελληνικά...................................................................................................................... 397
Svenska....................................................................................................................... 421
2

Table of contents
Specifications on page 3 Startup on page 17
General information on page 5 Maintenance on page 18
Installation on page 9 Troubleshooting on page 23
Additional information
Additional information is available on the manufacturer's website.
Specifications
Specifications are subject to change without notice.
AS950 portable sampler
Specification Standard base Compact base Composite base
Dimensions Diameter: 50.5 cm (19.9 in.)
Height: 71.6 cm (28.2 in.)
Diameter: 44.1 cm (17.4 in.)
Height: 63.8 cm (25.1 in.)
Diameter: 50.28 cm
(19.9 in.)
Height: 79.75 cm
(31.4 in.)
Weight 15 kg (35.6 lb) with 1-L (33.8 oz)
polyethylene bottles (24x)
14.8 kg (32.6 lb) with 10-L (2.5 gal)
polyethylene bottle (1x)
12.2 kg (27 lb) with 575-mL
(19.44 oz) polyethylene
bottles (24x)
12.9 kg (28.3 lb) with 10-L
(2.5 gal) polyethylene bottle
(1x)
15 kg (36 lb) with 950-
mL (32.12 oz) glass
bottles (12x)
Enclosure Impact-resistant ABS, 3-section construction; double-walled base with 2.54 cm (1 in.)
insulation—direct bottle contact with ice.
Sample
temperature
0–60 °C (32–140 °F)
Strainers 316 stainless steel in standard size, high velocity or low profile for shallow depth applications
and Teflon® or 316 stainless steel in standard size.
Sample bottle
capacity
1-L (33.8 oz) polyethylene and/or
350-mL (11.83 oz) glass bottles
(24x)
2.3-L (0.6 gal) polyethylene and/or
1.9-L (0.5 gal) glass bottles (8x)
3.8-L (1 gal) polyethylene and/or
3.8-L (1 gal) glass bottles (4x)
3.8-L (1 gal) polyethylene and/or
3.8-L (1 gal) glass bottles (2x)
21-L (5.5 gal) or 15-L (4 gal)
polyethylene composite bottle or 20-
L (5.25 gal) polyethylene or 10-L
(2.5 gal) polyethylene or 10-L
(2.5 gal) glass (1x)
575-mL (19.44 oz)
polyethylene bottles (24x)
950-mL (32.12 oz) glass
bottles (8x)
10-L (2.5 gal) polyethylene
bottle (1x)
10-L (2.5 gal) glass bottle
(1x)
21-L (5.5 gal)
polyethylene bottle (1x)
English 3

AS950 controller
Specification Details
Dimensions (W x H x D) 31.1 x 18.9 x 26.4 cm (12.3 x 7.4 x 10.4 in.)
Weight 4.6 kg (10 lb) maximum
Enclosure PC/ABS blend, NEMA 6, IP68, corrosion and ice resistant
Pollution degree/installation
category
3, II
Protection class II
Display ¼ VGA, color
Power requirements 15 VDC supplied by a 8754500 power supply (110–120 or 230 VAC, 50/60Hz);
12 VDC supplied by an external battery
Overload protection 7 A, DC line fuse for the pump
Operating temperature 0 to 50 °C (32 to 122 °F)
Storage temperature –30 to 60 °C (–22 to 140 °F)
Storage/operating humidity 100% condensing
Pump Peristaltic high speed with spring-mounted Nylatron rollers
Pump enclosure Polycarbonate cover
Pump tubing 9.5 mm ID x 15.9 OD mm (3/8-in. ID x 5/8-in. OD) silicone
Pump tubing life 20,000 sample cycles with: 1 L (0.3 gal) sample volume, 1 rinse, 6-minute
pacing interval, 4.9 m (16 ft) of 3/8-in. intake tube, 4.6 m (15 ft) of vertical lift,
21 °C (70 °F) sample temperature
Vertical sample lift 8.5 m (28 ft) for 8.8 m (29 ft) maximum of 3/8-in. vinyl intake tube at sea level at
20 to 25 °C (68 to 77 °F)
Pump flow rate 4.8 L/min (1.25 gpm) at 1 m (3 ft) vertical lift with 3/8-in. intake tube typical
Sample volume Programmable in 10-mL (0.34 oz) increments from 10 to 10,000 mL (3.38 oz to
2.6 gal)
Sample volume repeatability
(typical)
±5% of 200 mL sample volume with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft)
of 3/8-in. vinyl intake tube, single bottle, full bottle shut-off at room temperature
and 1524 m (5000 ft) elevation
Sample volume accuracy
(typical)
±5% of 200 mL sample volume with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft)
of 3/8-in. vinyl intake tube, single bottle, full bottle shut-off at room temperature
and 1524 m (5000 ft) elevation
Sampling modes Pacing: Fixed Time, Fixed Flow, Variable Time, Variable Flow, Event
Distribution: Samples per bottle, bottles per sample and time based (switching)
Run modes Continuous or non-continuous
Transfer velocity (typical) 0.9 m/s (2.9 ft/s) with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft) of 3/8-in. vinyl intake
tubing, 21 °C (70 °F) and 1524 m (5000 ft) elevation
Liquid detector Ultrasonic. Body: Ultem® NSF ANSI standard 51 approved, USP Class VI
compliant. Contacting liquid detector or optional non-contact liquid detector
Air purge An air purge is done automatically before and after each sample. The sampler
automatically compensates for different intake tube lengths.
Tubing Intake tubing: 1.0 to 30.0 m (3.0 to 99 ft) length, ¼-in. or 3/8-in. ID vinyl or 3/8-in.
ID Teflon™-lined polyethylene with protective outer cover (black or clear)
4 English

Specification Details
Wetted materials Stainless steel, polyethylene, Teflon, Ultem, silicone
Memory Sample history: 4000 records; Data log: 325,000 records; Event log:
2000 records
Communications USB and optional RS485 (Modbus)
Electrical connections Power, auxiliary, optional sensors (2x), USB, distributor arm, optional rain
gauge
Analog outputs AUX port: none; optional IO9000 module: Three 0/4–20 mA outputs to
supply the recorded measurements (e.g., level, velocity, flow and pH) to
external instruments
Analog inputs AUX port: One 0/4–20 mA input for flow pacing; optional IO9000 module:
Two 0/4–20 mA inputs to receive measurements from external instruments
(e.g., third-party ultrasonic level)
Digital outputs AUX port: none; optional IO9000 module: Four low voltage, contact closure
outputs that each supply a digital signal for an alarm event
Relays AUX port: none; optional IO9000 module: Four relays controlled by alarm
events
Certifications CE, cETLus
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this
equipment in any manner other than that specified in this manual.
Use of hazard information
D A N G E R
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.
English 5

N O T I C E
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument
could occur if not observed. A symbol on the instrument is referenced in the manual with a
precautionary statement.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential
injury. If on the instrument, refer to the instruction manual for operation or safety information.
This symbol indicates a potential pinch hazard.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public
disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
Certification
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de classe A répond à toutes les exigences de la réglementation canadienne
sur les équipements provoquant des interférences.
FCC Part 15, Class "A" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC
Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications to this equipment not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. This equipment has been tested
and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to
correct the interference at their expense. The following techniques can be used to reduce
interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the
interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect
the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
6 English

Product overview
D A N G E R
Chemical or biological hazards. If this instrument is used to monitor a treatment process and/or
chemical feed system for which there are regulatory limits and monitoring requirements related to
public health, public safety, food or beverage manufacture or processing, it is the responsibility of the
user of this instrument to know and abide by any applicable regulation and to have sufficient and
appropriate mechanisms in place for compliance with applicable regulations in the event of malfunction
of the instrument.
CAUTION
Fire hazard. This product is not designed for use with flammable liquids.
The portable sampler collects liquid samples at specified intervals and keeps the samples in bottles.
Use the sampler for a wide variety of aqueous sample applications and also with toxic pollutants and
suspended solids. Set up the sampler with different retainers or bottles. Refer to Figure 1.
Figure 1 Product overview
1 Compact base 7 Pump
2 Standard insulated base 8 Controller
3 Center section 9 Liquid detector
4 Power source 10 Non-contacting liquid detector
5 Top cover 11 Composite insulated base for one 21-L (5.5 gal)
bottle
6 Controller connections
Close the cover
To close the cover, align the latch plates as shown in Figure 2 and close the latches.
English 7

Figure 2 Latch plates alignment
Product components
Make sure that all components have been received. Refer to Figure 3. If any items are missing or
damaged, contact the manufacturer or a sales representative immediately.
Figure 3 Product components
1 Base (Standard, compact or composite) 7 AC power supply (optional)
2 Components for a single-bottle option (bottle and
support can change)
8 Strainer
3 Center section with controller 9 Intake tubing, vinyl or Teflon-lined
4 Battery (optional) 10 Components for a multiple-bottle option (bottles
and retainers can change)
5 Top cover 11 Tubing coupler1
6 Battery charger (optional)
1Supplied with controllers with the non-contacting liquid detector only.
8 English

Installation
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Confined space precautions
D A N G E R
Explosion hazard. Training in pre-entry testing, ventilation, entry procedures, evacuation/rescue
procedures and safety work practices is necessary before entering confined spaces.
The information that follows is supplied to help users understand the dangers and risks that are
associated with entry into confined spaces.
On April 15, 1993, OSHA's final ruling on CFR 1910.146, Permit Required Confined Spaces, became
law. This standard directly affects more than 250,000 industrial sites in the United States and was
created to protect the health and safety of workers in confined spaces.
Definition of a confined space:
A confined space is any location or enclosure that has (or has the immediate potential for) one or
more of the following conditions:
• An atmosphere with an oxygen concentration that is less than 19.5% or more than 23.5% and/or a
hydrogen sulfide (H2S) concentration that is more than 10 ppm.
• An atmosphere that can be flammable or explosive due to gases, vapors, mists, dusts or fibers.
• Toxic materials which upon contact or inhalation can cause injury, impairment of health or death.
Confined spaces are not designed for human occupancy. Confined spaces have a restricted entry
and contain known or potential hazards. Examples of confined spaces include manholes, stacks,
pipes, vats, switch vaults and other similar locations.
Standard safety procedures must always be obeyed before entry into confined spaces and/or
locations where hazardous gases, vapors, mists, dusts or fibers can be present. Before entry into a
confined space, find and read all procedures that are related to confined space entry.
Site installation guidelines
D A N G E R
Explosion hazard. The instrument is not approved for installation in hazardous locations.
This instrument is rated for an altitude of 2000 m (6562 ft) maximum. Although the use of this
equipment above the 2000 m altitude does not show any substantial safety concern, the
manufacturer recommends that users with concerns contact technical support.
Refer to the guidelines that follow for the site location evaluation.
• Obey all the safety precautions if the sampler is installed in a confined space. Refer to Confined
space precautions on page 9.
• Make sure that the temperature at the location is in the specification range. Refer to Specifications
on page 3.
• Install the sampler on a level surface or hang the sampler with the suspension harness, the
support bracket or the spanner bar. Refer to Install the sampler in a manhole on page 10 and to
the applicable installation documentation.
• Install the sampler as near the sample source as possible. Refer to Plumb the sampler
on page 12.
• For limitations on transport velocity and maximum vertical lift, refer to Specifications on page 3.
English 9

Mechanical installation
Install the sampler in a manhole
Install the sampler above the sample water in a manhole. Install the sampler with a spanner bar or a
support bracket. Install the spanner bar inside the manhole. The spanner bar is supported by
pressure against the walls. The support bracket has the same width as the manhole cover. Install the
support bracket directly below the cover for support.For the accessories, refer to the expanded
manual on the manufacturer's website. Refer to the documentation supplied with the accessories to
install the sampler.
Prepare the sampler
Clean the sample bottles
Clean the sample bottles and caps with a brush, water and a mild detergent. Flush the sample
bottles with fresh water followed by a distilled water rinse.
Install a single bottle
When a single bottle is used to collect one composite sample, do the steps that follow. When multiple
bottles are used, refer to Install the first bottle for multiple sample collections on page 10.
When the bottle is full, the full bottle shut-off stops the sample program. Install the sample bottle as
shown in Figure 4.
Figure 4 Single bottle installation
1 Polyethylene bottle, 10 L (2.6 gal) 6 Polyethylene bottle, 21 L (5.5 gal)
2 Glass bottle, 10 L (2.6 gal) 7 Compact base
3 Support for standard base and 10 L (2.6 gal) glass
bottle
8 Standard insulated base
4 Polyethylene bottle, 15 L (4 gal) 9 Composite insulated base for 21 L (5.5 gal) bottle
5 Polyethylene bottle, 19 L (5 gal)
Install the first bottle for multiple sample collections
Use multiple bottles to collect samples into separate bottles or into more than one bottle. The
distributor moves the sample tube above each bottle. Install the bottles in the sampler base as shown
in Figure 5. Install the first sample bottle (number 1) below the label in the sampler base. Install the
remaining bottles in increasing numbers in the direction shown by the label. Refer to Figure 6
on page 12 for a diagram of necessary components.
10 English

Figure 5 Bottle number 1 installation
1 Bottle number 1 location (compact base) 6 Elastic straps
2 Bottle number 1 location for 24 bottles 7 Composite insulated base for 21 L (5.5 gal) bottle
3 Bottle number 1 location for 8 bottles 8 Standard insulated base
4 Bottle number 1 location for 2 or 4 bottles 9 Compact base
5 Retainer
Install multiple bottles
When multiple bottles are installed, a distributor arm moves the sample tube over each bottle.
Sample collection automatically stops when the specified number of samples have been collected.
1. Install the first sample bottle (number 1) below the label in the sampler base. Refer to Install the
first bottle for multiple sample collections on page 10.
2. Assemble the sample bottles as shown in Figure 6. For eight or more bottles, make sure that the
first bottle goes next to the bottle one indicator in the clockwise direction.
3. Put the bottle assembly in the sampler. For eight or more bottles, align the wires in the slots in the
bottom tray.
English 11

Figure 6 Multiple bottle installation
1 Retainer/Positioner for 8 950-mL glass bottles 8 Bottle set, 4 3.8-L (1-gal) poly or glass
2 Retainer for 8 or 24 glass or poly bottles 9 Bottle set, 8 1.9-L (0.5-gal) glass or 8 2.3-L (0.6-gal)
poly
3 Retainer for 4 3.8-L (1 gal) glass or poly bottles 10 Bottle set, 24 1-L (0.26 gal) poly
4 Retainer for 24 350-mL (11.83 oz) glass bottles 11 Bottle set, 24 350-mL (11.83 oz) glass
5 Bottle set, 8 950-mL (32.12 oz) glass 12 Compact base
6 Bottle set, 24 575-mL (19.44 oz) poly 13 Standard base
7 Bottle set, 2 3.8-L (1-gal) poly or glass
Plumb the sampler
Install the strainer in the middle of the sample stream (not near the surface or the bottom) to make
sure that a representative sample is collected. Refer to Figure 7.
1. Connect the tubing to the sampler as shown in Figure 8.
Note: When Teflon-lined tubing is used, use the tubing connection kit for Teflon-lined PE tubing.
2. Install the intake tube and strainer in the main stream of the sample source where the water is
turbulent and well-mixed.
• Make the intake tube as short as possible. Refer to Specifications on page 3 for the minimum
intake tubing length.
• Keep the intake tube at a maximum vertical slope so that the tube drains completely between
samples.
Note: If a vertical slope is not possible or if the tube is pressurized, disable the liquid sensor. Calibrate the
sample volume manually.
• Make sure that the intake tube is not pinched.
12 English

Figure 7 Instrument installation
1 Strainer 3 Intake tube
2 Vertical lift
Figure 8 Intake tube installation
Electrical installation
Connect the sampler to power
D A N G E R
Electrocution hazard. If this equipment is used outdoors or in potentially wet locations, a Ground Fault
Circuit Interrupt (GFCI/GFI) device must be used for connecting the equipment to its main power
source.
English 13

D A N G E R
Fire hazard. Install a 15 A circuit breaker in the power line. A circuit breaker can be the local power
disconnect, if located in close proximity to the equipment.
D A N G E R
Electrocution hazard. Protective Earth Ground (PE) connection is required.
WARNING
Electrocution hazard. Make sure that there is easy access to the local power disconnect.
Connect the sampler to a battery (8754400) or an AC power supply (8754500US, 8754500EU or
8754500UK). Refer to Figure 9.
Figure 9 Connect the sampler to power
Controller connections
WARNING
Electrical shock hazard. Externally connected equipment must have an applicable country safety
standard assessment.
Figure 10 shows the electrical connectors on the controller.
14 English

Figure 10 Controller connections
1 Sensor 2 port (optional) 5 Rain gauge/RS485 port (optional)
2 Power supply port 6 Auxilliary I/O port
3 Sensor 1 port (optional) 7 Distributor arm/Full bottle shut-off port
4 USB connector
Connect a Sigma 950 or FL900
If sample pacing is flow based, supply the controller with a flow input signal (pulse or 4–20 mA).
Connect a Sigma 950 or an FL900 Flow Logger to the AUX I/O port.
As an alternative, connect a flow sensor to a sensor port. Refer to Connect a sensor on page 17.
Item to collect: Multi-purpose auxiliary full cable, 7 pin
1. Connect one end of the cable to the flow meter. Refer to the flow meter documentation.
2. Connect the other end of the cable to the AUX I/O port on the controller.
Connect a non-Hach flow meter
To connect a non-Hach flow meter to the AUX I/O port, do the steps that follow.
Items to collect: Multi-purpose auxiliary half cable, 7 pin
1. Connect one end of the cable to the AUX I/O port on the controller.
2. Connect the other end of the cable to the flow meter. Refer to Figure 11 and Table 1.
Note: In some installations, it is necessary to connect external equipment to the Pulse input, Special output
and/or Program Complete output with long cables. Since these are ground-referenced pulse interfaces, false
signaling can be caused by transient ground differences between each end of the cable. High ground
differentials are typical in heavy industrial environments. In such environments, it may be necessary to use
third-party galvanic isolators (e.g., optocouplers) in line with the affected signal(s). For the Analog input,
external ground isolation is typically not necessary because the 4–20 mA transmitter typically supplies isolation.
Figure 11 Auxiliary connector
English 15

Table 1 Half cable wiring information
Pin Signal Color2Description Rating
1 +12 VDC
power
output
White Power supply positive output.
Only use with pin 2.
Battery power to the IO9000 module: 12 VDC
nominal; Power supply to the IO9000 module:
15 at 1.0 A maximum.
2 Common Blue Negative return of power supply.
When the power supply is used,
pin 2 is connected to earth
ground3.
3 Pulse input
or Analog
input
Orange This input is a sample collection
trigger from the flow meter (pulse
or 4–20 mA) or a simple floating
(dry) contact closure.
Pulse input—Reacts to a positive pulse with
respect to pin 2. Termination (pulled low): pin 2
through a series 1 kΩ resistor and 10 kΩ
resistor. A 7.5 zener diode is in parallel with the
10 kΩ resistor as a protection device.
Analog input—Reacts to the analog signal that
enters pin 3 and returns on pin 2. Input burden:
100 Ω plus 0.4 V; Input current (internal limit):
40 to 50 mA maximum4
Absolute maximum input: 0 to 15 VDC with
respect to pin 2.
Signal to make the input active: 5 to 15 V
positive-going pulse5 with respect to pin 2,
50 millisecond minimum.
4 Liquid level
input or
Auxiliary
control
input
Black Liquid level input—Start or
continue the sampling program. A
simple float level switch can
supply input.
Auxiliary control input—Start a
sampler after the sampling
program on another sampler
ends. As an alternative, start a
sampler when a trigger condition
occurs. For example, when a
high or low pH condition occurs,
the sampling program starts.
Termination (pulled high): internal +5 V supply
through an 11 kΩ resistance with a series 1 kΩ
resistor and 7.5 V zener diode terminated to pin
2 for protection. Trigger: High to low voltage
with a low pulse of 50 milliseconds minimum.
Absolute maximum input: 0 to 15 VDC with
respect to pin 2. Signal to make the input
active: external logic signal with 5 to 15 VDC
power source. The drive signal must be
typically high. The external driver must be able
to sink 0.5 mA at 1 VDC maximum at the logic
low level.
A logic high signal from a driver with a power
source of more 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 and V is
the power supply voltage of the driving logic.
Dry contact (switch) closure: 50 millisecond
minimum between pin 4 and pin 2. Contact
resistance: 2 kΩ maximum. Contact current:
0.5 mA DC maximum
5 Special
output
Red This output goes from 0 to
+12 VDC with respect to pin 2
after each sample cycle. Refer to
the Mode setting of the hardware
settings for the AUX I/O port.
Refer to the AS950 operations
documentation.
This output has protection against short circuit
currents to pin 2. External load current: 0.2 A
maximum
Active high output: 15 VDC nominal with AC
power to the AS950 controller or a 12 VDC
nominal with battery power to the
AS950 controller.
2The wire color refers to the colors of multi-purpose cables (8528500 and 8528501).
3All mains powered equipment that connects to the controller terminals must be NRTL listed.
4Long-term operation in this state voids the warranty.
5Source impedance of the driving signal must be less than 5 kΩ.
16 English

Table 1 Half cable wiring information (continued)
Pin Signal Color2Description Rating
6 Program
Complete
output
Green Typical state: open circuit. This
output goes to ground for
90 seconds at the end of the
sampling program.
Use this output to start another
sampler or to signal an operator
or data logger at the end of the
sampling program.
This output is an open drain output with 18 V
zener clamp diode for over-voltage protection.
The output is active low with respect to pin 2.
Absolute maximum ratings for the output
transistor: sink current = 200 mA DC maximum;
external pull-up voltage = 18 VDC maximum
7 Shield Silver The shield is a connection to
earth ground when AC power is
supplied to a sampler to control
RF emissions and susceptibility
to RF emissions.
The shield is not a safety ground. Do not use
the shield as a current carrying conductor.
The shield wire of cables that are connected to
the AUX I/O port and are more than 3 m (10 ft)
should connected to pin 7.
Only connect the shield wire to earth ground at
one end of the cable to prevent ground loop
currents.
Connect a sensor
To connect a sensor (e.g., pH or flow sensor) to a sensor port, refer to Figure 12.
Figure 12 Connect a sensor
Startup
Set the instrument to on
Push and hold the Power key on the controller to set the instrument to on.
Preparation for use
The physical installation is now complete. Refer to the operations manual to complete the setup for
the first use.
English 17

Maintenance
D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
D A N G E R
Electrocution hazard. Remove power from the instrument before doing maintenance or service
activities.
WARNING
Biohazard exposure. Obey safe handling protocols during contact with sample bottles and sampler
components.
WARNING
Multiple hazards. The technician must make sure that the equipment operates safely and correctly
after maintenance procedures.
N O T I C E
Do not disassemble the instrument for maintenance. If the internal components must be cleaned or repaired,
contact the manufacturer.
Clean the instrument
CAUTION
Fire hazard. Do not use flammable agents to clean the instrument.
If water is not sufficient to clean the controller and the pump, disconnect the controller and move the
controller away from the sampler. Allow sufficient time for the controller and pump to dry before the
parts are re-installed and put back into service.
Clean the sampler as follows:
• Sampler enclosure—Clean the internal and external surfaces with a damp cloth and a mild
detergent. Do not use abrasive cleaners or solvents.
• Sample bottles—Clean the bottles with a brush and water and a mild detergent. Rinse with fresh
water and then with distilled water. Use an autoclave to clean glass bottles if necessary.
Replace the desiccant
A desiccant cartridge in the controller absorbs moisture and prevents corrosion. Monitor the
desiccant color through the window. Refer to Figure 13. Fresh desiccant is orange. When the color is
green, replace the desiccant.
1. Unscrew and remove the desiccant cartridge. Refer to Figure 13.
2. Remove the plug and discard the spent desiccant.
3. Fill the desiccant tube with fresh desiccant.
4. Install the plug.
5. Apply silicone grease to the O-ring.
6. Install the desiccant tube in the controller.
18 English

Figure 13 Desiccant cartridge
1 Plug 3 O-ring
2 Desiccant tube 4 Desiccant window
Pump maintenance
CAUTION
Pinch hazard. Remove power from the instrument before maintenance or service activities are done.
Replace the pump tubing
N O T I C E
Use of tubing other than that supplied by the manufacturer can cause excessive wear on mechanical parts and/or
poor pump performance.
Examine the pump tubing for wear where the rollers rub against the tubing. Replace the tubing when
the tubing shows signs of wear.
Pre-requisites:
• Pump tubing—pre-cut or bulk 4.6 m or 15.2 m (15 ft or 50 ft)
1. Disconnect the power to the controller.
2. If the bulk tubing is used, cut the tubing and add alignment dots. Refer to Figure 14.
3. Remove the pump tubing as shown in the illustrated steps that follow.
4. Clean the silicone residue from the interior of the pump housing and from the rollers.
5. Install the new pump tubing as shown in the illustrated steps that follow.
English 19

Figure 14 Pump tubing preparation
1 To intake tubing 4 Length for controller with standard liquid detector
2 Alignment dots 5 Length for controller with optional non-contacting
liquid detector
3 To fitting on sampler base 6 Length inside the pump
20 English