This instruction manual is designed to help you gain a thorough understanding of the
operation of the equipment. Teledyne Isco recommends that you read this manual
completely before placing the equipment in service.
Although Teledyne Isco designs reliability into all equipment, there is always the possibility of a malfunction. This manual may help in diagnosing and repairing the malfunction.
If the problem persists, call or e-mail the Teledyne Isco Technical Service Department
for assistance. Simple difficulties can often be diagnosed over the phone.
If it is necessary to return the equipment to the factory for service, please follow the
shipping instructions provided by the Customer Service Department, including the
use of the Return Authorization Number specified. Be sure to include a notedescribing the malfunction. This will aid in the prompt repair and return of the
equipment.
Teledyne Isco welcomes suggestions that would improve the information presented in
this manual or enhance the operation of the equipment itself.
Teledyne Isco is continually improving its products and reserves the right to
change product specifications, replacement parts, schematics, and instructions without notice.
Customer Service
Phone:(800) 228-4373(USA, Canada, Mexico)
Fax:(402) 465-3022
Email:IscoCSR@teledyne.com
Technical Service
Phone:(800) 775-2965 (Analytical)
Email:IscoService@teledyne.com
Return equipment to: 4700 Superior Street, Lincoln, NE 68504-1398
Other Correspondence
Mail to:P.O. Box 82531, Lincoln, NE 68501-2531
Email:IscoInfo@teledyne.com
Web site:www.isco.com
Contact Information
(402) 464-0231(Outside North America)
(800) 228-4373(Samplers and Flow Meters)
Revised September 15, 2005
6712SR Refrigerated Sampler
Safety
6712SR Refrigerated Sampler
Safety
General WarningsBefore installing, operating, or maintaining this equipment, it is
imperative that all hazards and preventive measures are fully
understood. While specific hazards may vary according to
location and application, take heed in the following general
warnings:
WARNING
This instrument has not been certified for use in
“hazardous locations” as defined by the National Electrical
Code.
WARNING
Avoid hazardous practices! If you use this instrument in
any way not specified in this manual, the protection
provided by the instrument may be impaired; this will
increase your risk of injury.
AVERTISSEMENT
Éviter les usages périlleux! Si vous utilisez cet instrument
d’une manière autre que celles qui sont specifiées dans ce
manuel, la protection fournie de l’instrument peut être
affaiblie; cela augmentera votre risque de blessure.
Hazard Severity LevelsThis manual applies Hazard Severity Levels to the safety alerts,
These three levels are described in the sample alerts below.
CAUTION
Cautions identify a potential hazard, which if not avoided, may
result in minor or moderate injury. This category can also warn
you of unsafe practices, or conditions that may cause property
damage.
WARNING
Warnings identify a potentially hazardous condition, which
if not avoided, could result in death or serious injury.
DANGER
DANGER – limited to the most extreme situations
to identify an imminent hazard, which if not
avoided, will result in death or serious injury.
iii
6712SR Refrigerated Sampler
Safety
Hazard SymbolsThe equipment and this manual use symbols used to warn of
hazards. The symbols are explained below.
Hazard Symbols
Warnings and Cautions
The exclamation point within the triangle is a warning sign alerting you of
important instructions in the instrument’s technical reference manual.
The lightning flash and arrowhead within the triangle is a warning sign alerting you of “dangerous voltage” inside the product.
Pinch point. These symbols warn you that your fingers or hands will be seriously injured if you place them between the moving parts of the mechanism
near these symbols.
Symboles de sécurité
Ce symbole signale l’existence d’instructions importantes relatives au produit dans ce manuel.
Warnungen und Vorsichtshinweise
Ce symbole signale la présence d’un danger d’électocution.
Risque de pincement. Ces symboles vous avertit que les mains ou les
doigts seront blessés sérieusement si vous les mettez entre les éléments
en mouvement du mécanisme près de ces symboles
Das Ausrufezeichen in Dreieck ist ein Warnzeichen, das Sie darauf
aufmerksam macht, daß wichtige Anleitungen zu diesem Handbuch
gehören.
Der gepfeilte Blitz im Dreieck ist ein Warnzeichen, das Sei vor “gefährlichen
Spannungen” im Inneren des Produkts warnt.
Vorsicht Quetschgefahr! Dieses Symbol warnt vor einer unmittelbar drohenden Verletzungsgefahr für Finger und Hände, wenn diese zwischen die
beweglichen Teile des gekennzeichneten Gerätes geraten.
The 6712SR Refrigerated Sampler is an integral part of Teledyne
Isco’s comprehensive sampling system. The system includes the
6712SR and 6712SR Refrigerated Samplers, the 6712 Compact
Sampler, and the 6712 Standard Sampler.
The 6712SR is ideally suited for permanent installation in a wide
variety of indoor and outdoor environments. Constructed from
durable, corrosion resistant materials, the 6712SR withstands
the hostile environments of industrial and municipal monitoring
sites. However, do not install in locations where the refrigerator’s
lower compartment could become submerged.
The 6712SR accepts a variety of sequential and composite bottle
kits. Like all samplers in the 6712 series, it is compatible with a
variety of Teledyne Isco instruments.
6712 Front Panel
1.1 About This ManualThis manual contains the information you will need to install,
program, operate, and maintain a 6712SR refrigerated sampler.
There are eight sections and five appendices:
• Section 1, Introduction lists the features and specifica-
tions of the 6712SR refrigerated sampler.
• Section 2, Installation/Preparation steps you through
installing the sampler and preparing it for use.
• Section 3, Getting Started describes features that are
common to both standard and extended programming
modes.
• Section 4, Standard Programming shows how to
program your sampler using standard programming
mode.
• Section 5, Extended Programming shows how to
program your sampler using extended programming
mode.
• Section 6, SDI-12 Sondes provides information on
setting up sondes to work with the 6712SR.
• Section 7, Remote Operation explains how the 6712
controller can be operated remotely from external
devices.
• Section 8, Maintenance covers the basic maintenance
required to keep your sampler in top operating
condition.
The bay on the controller’s side accepts any of Teledyne Isco’s 700
Series Modules. The 700 Series includes:
• 701 pH Parameter Module for monitoring pH and
temperature.
• 710 Ultrasonic Module for monitoring a flow stream’s
level and flow rate with an ultrasonic level sensor.
• 720 Submerged Probe Module for monitoring a flow
stream’s level and flow rate with a submerged probe.
• 730 Bubbler Flow Module for monitoring a flow stream’s
level and flow rate with a bubbler system.
• 750 Area Velocity Module for monitoring a flow stream’s
level, velocity, and flow rate.
• 780 4-20mA Input Module for interfacing to
non-Teledyne Isco devices with 4 to 20 milliampere
output signals.
The modules are optional accessories, and are not required for
operation. However, the modules offer a number of advantages:
they are an economical way to combine flow-rate or parameter
monitoring with sampling, and you can program the samplers
and modules as a single unit. Finally, the samplers store the
readings in memory.
1.3 SDI-12 SondesAs an option, the sampler accepts up to 16 parameters from up to
ten sensors with SDI-12 addresses from 0 - 9 (refer to SDI-12
Sonde Readings, page 1-10, for specific parameters).
The data parameters used by the sensing device (sonde) and
recording device (sampler) must match. Certain vendors’ sondes
have enhanced commands that facilitate “plug and play” setup.
These Teledyne Isco Ready sondes can tell the 6712SR what
values they have, their order, and units of measure. Other sondes
can be used, but require manual setup to identify proper data
types for each data value reported.
1.4 Memory to Store
Monitoring Data
1-2
The samplers contain enough memory to store five sampling programs, sampling data, Teledyne Isco 700 Series Module readings,
and SDI-12 parameter readings. You can view the readings on
your sampler’s display.
You can also retrieve the readings and reports so the information
can be processed on a personal computer. Readings and reports
may be collected with a computer running Teledyne Isco’s
Flowlink™ software. Flowlink can download the information
through a direct connection, a modem connection (when the
6712SR Refrigerated Sampler
Section 1 Introduction
sampler is equipped with the optional dial-out modem), or from a
581 Rapid Transfer Device (RTD). The RTD is a quick and simple
way to transfer the data from the field to your computer. Reports
are easily collected with Teledyne Isco’s Samplink software.
1.5 Pump RequirementsThe pump requires a pump tube made specifically for the 6712
and 6700 Series samplers. These pump tubes are easily recognized by their blue alignment collars. The 6712 pump tubing is
the same as that for Teledyne Isco’s 6700 Series samplers, but
different from Teledyne Isco’s earlier model samplers, such as the
3700 Series. Other types of pump tubing will not work inthe 6712SR. Refer to Replacing the Pump Tube on page 8-8.
Table 1-1 6712SR Sampler Features
GENERAL FEATURES
Top C ov e r
Controller Only
(does not include
refrigerator)
Refrigerator
•Protects pump, power source, and controller.
•Lockable latches.
•Contains a rechargeable desiccant to prevent moisture damage to the
electronics, pump, and distributor systems.
•Control panel sloped 15 degrees for easy reading.
•Keys labeled with large, vivid icons.
•80-character display (4 lines by 20 columns).
•Display has selectable backlight:
Always on or always off.
Timed, switching off when keypad is inactive for 60 seconds.
•Memory for program and data storage.
•Flash memory for easy software upgrades.
•NEMA 4X and 6 (IP67) ratings.
•The 6712SR requires 120 volts AC, 60 Hz, or optional 230 volts Ac, 50 Hz. A
built-in 12 volt DC power converter powers the controller.
•The power supply and solid state thermostat are sealed inside the
refrigerator’s base. However, electrical connections for the fan and
compressor are not sealed.
•A forced air condensing coil and front ventilation let you place the unit close
to a wall or in a corner.
•The oversized wrap-around evaporator plate cools the sampling
compartment quickly and efficiently. Heaters on the plate let the sampler
continue to operate in cold temperatures. The evaporator plate is
self-defrosting.
•Food-grade ABS plastic interior will not support bacterial growth or leach
plasticizers into the sample.
Adjustable
Distributor Arm
Discharge Tube and Support
Spring
Composite Tube Guide for
Composite Sampling
•A single distributor arm adjusts quickly to fit all bottle kits. Easily removed
for composite sampling.
•Routes sample liquid from pump tube, through distributor arm to sample bottle.
•Keeps discharge tube in place over composite bottles.
Real-Time DisplaysAs the sampler runs a sampling program, it displays the program’s status.
Programming for ModulesProgram the modules from the sampler’s control panel. The module’s
Setup for SDI-12 SondesCalibrate and program SDI-12 sondes from the sampler’s control panel. The
Memory for Stored Programs
and Readings
• 581 Rapid Transfer Device • 1640 Liquid Level Actuator
• 674 Rain Gauge• 2100 Series Flow Modules
• 700 Series Modules• 4100 Series Flow Loggers
• SDI-12 Sondes• 4200 Series Flow Meters
• Refrigerator Temperature Sensor• Flowlink, Samplink
The status display may include such information as the time of the next
sample, the number of the next bottle, or whether the sampler is disabled or
stopped. If the sampler encounters an error while running the program, it
displays a message alerting you to the problem.
program settings become part of the sampling program.
program settings become part of the sampling program. See Section 6.
512 kilobytes of battery-backed RAM (Random Access Memory), to store:
•Five sampling programs.
•A sampling report from the most recently run program. It records as many as
1000 sampling events; events can be the program start time, enable time,
sample event information, etc.
•700 Series module readings. The readings can be: level, flow rate, velocity, pH,
temperature, or the data collected by the 4-20 mA module.
•Rain gauge and refrigerator temperature readings.
•SDI-12 sonde readings.
Five Reports Available
Serial Data Output
Units of MeasureA variety of metric and English units of measure for length, flow rate, flow
External Sampler EnableTeledyne Isco flow meters and flow loggers have a programmable sampler
Dual Sampler ModeDual Sampler Mode operates two samplers.
Command Driven Operation
Warning Messages
•The Program Settings report, listing current program settings.
•The Sampling Results report, listing the events occurring during the program.
•The Combined Results report, combining sampling events with readings from a
rain gauge, module, or SDI -12 sonde.
•The Module Summary report, summarizing flow rate or parameter readings.
•The Rainfall Summary report, listing a summary of rainfall readings.
ASCII data output from the interrogator port.
volume, and temperature.
enable feature that lets them send an electronic signal to a 6712SR that
enables (starts) or disables (stops) a running sampling program.
Operate sampler functions using RS-232 communications.
•Pump Tube Warning. The 6712SR displays a warning to inspect the tube.
•Internal Battery Warning. From the Maintenance screen, the 6712SR displays a
warning when it is time to replace the internal battery. The internal battery
preserves stored data when the 6712SR is without external power.
1-4
6712SR Refrigerated Sampler
Table 1-1 6712SR Sampler Features (Continued)
Section 1 Introduction
Optional Dialout ModemThe 6712 controller can be ordered with a factory-installed 2400 baud dialout
On-Line Help NotesWhen programming the sampler, press the [?] (Help) key for a brief help
Two Programming LevelsStandard programming lets you set up typical sampling programs quickly.
modem. With the modem you can:
•connect to the sampler and download data using Flowlink software.
•program the sampler to call a contact list when an “alarm” condition exists.
•use the Remote Commands to control the sampler’s operation from a remote
location. See Section 5.
note. All help topics appear in the index.
Extended programming includes all features available in standard
programming plus additional features.
SAMPLE DELIVERY SYSTEM FEATURES
Peristaltic Pump
LD90 Liquid Detector
Two Line Purges in Sampling
Cycle
Easy Grab SamplesSimply disconnect the pump tube from the bulkhead fitting on the center
Vinyl and Teflon
Suction Lines
®
•Benefits: Liquid moves continuously under pumped flow. The pump has no
metering chambers or gravity fed internal tubing to trap sediment or residual
liquid. Sample liquid contacts only the strainer, suction line, tube coupling,
pump tube, bulkhead fitting, and sample bottles.
•Non wetted Detection: Sample liquid never touches the detector.
The sampling cycle always includes a pre-sample purge and post-sample
purge that clears the suction line of residual liquid.
section, and place the pump tube over your sample container.
3
•
/8-inch ID (Inside Diameter) vinyl line.
3
•
/8-inch ID Teflon
®
lined with polyethylene jacket.
Pacing
Distribution Methods
Three Flexible
Start-Time Settings
Option for a Continuous
Running Program
STANDARD PROGRAMMING FEATURES
•Uniform Time Pacing: Sampling at regular time intervals.
•Flow Pacing: Sampling at regular flow-volume intervals.
•Composite: Samples deposited in a single large bottle.
•Sequential: Only one sample placed in each bottle.
•Samples Per Bottle: Multiple samples placed in each bottle.
•Bottles Per Sample: One sample deposited in multiple bottles.
•Start Immediately: Starts the sampling program immediately.
•Delayed Start: Starts the sampling program after a user-definable delay
of 1 to 999 minutes.
•Clock Time: Starts the sampling program at a user-definable time on one
or more days of the week.
•Continuous Sampling: When sample bottles are regularly replaced, the
sample distribution can restart with the first bottle set after the last bottle
set is filled, without interrupting the running program.
Pauses and ResumesCreate intermittent sampling schedules.
Two-Part ProgrammingTwo-part programming lets you set up a sampling program that divides the
•Uniform Time Pacing: Sampling at regular time intervals.
•Nonuniform Time Pacing: Sampling at irregular time intervals.
•Random Interval Pacing: Sampling at unique random time intervals
generated by the controller.
•Flow Pacing: Sampling at regular flow-volume intervals.
•Event Pacing: Sampling each time a user-definable event occurs.
Allows for sample sizes to be based on flow. (This option is available only
with uniform time pacing.)
•Composite: Samples deposited in a single large bottle.
•Sequential: Only one sample placed in each bottle.
•Samples Per Bottle: Multiple samples placed in each bottle
•Bottles Per Sample: One sample deposited in multiple bottles
•Multiple Bottle Compositing: A combination of samples per bottle and
bottles per sample distribution methods.
•Time Switched Bottles or Bottle sets: Control the sample distribution
using clock times.
A 6712SR sampler can be programmed to enable or disable a running
sampling program when readings received from a connected rain gauge,
module, or SDI-12 Sonde meet certain conditions.
bottles into two groups, filling each group according to separate pacing,
distribution, sampler enable, and pause and resume settings. This is ideal for
storm-water run-off sampling.
Auto Suction Head or Fixed
Suction Head
Suction Line RinsesProgram setting for the number of times (0 to 3) that the 6712 rinses the
Sampling RetriesProgram setting for the number of times (0 to 3) that the 6712 attempts to
Three Flexible
Start Time Settings
Option for a Continuous
Running Program
The suction head, is the vertical distance from the flow stream to the liquid
detector. Extended programming has two settings.
•Auto-Suction Head: The head is automatically determined.
•Fixed Suction Head: A user-definable measurement for the head.
suction line before drawing a sample.
sample if it fails to deliver the entire sample volume.
•Run Immediately: Starts the sampling program immediately.
•Delayed Start: Starts the sampling program after a user-definable delay
of 1 to 999 minutes.
•Clock Time: Starts the sampling program at a user-definable time on one
or more days of the week.
Continuous Sampling: When sample bottles are regularly replaced, the
sample distribution can restart with the first bottle set after the last bottle
set is filled, without interrupting the running program.
Fiberglass reinforced plastic with ultraviolet-resistant gel coat.
Stainless Steel
®
Noryl
®
Delrin
Polyester
Stainless steel
Protected with polyester tubing or phenolic resin.
Evaporator ProtectionPowder coated with food-grade epoxy.
Refrigerant
InsulationPolyurethane
Amphenol ConnectorsCadmium Plated Aluminum
R134a (1,1,1,2-tetrafluoroethane CH2FCF3)
Table 1-3 Technical Specifications for the 6712SR Refrigerated Sampler
General Notes:
1
1. All weights may vary ±1 lb (±
2. All dimensions may vary ±
3. Sample delivery specifications valid for the following conditions and ranges, unless otherwise stated: 75°F (24°C)
ambient, sample liquid–tap water at 50 to 80°F (10 to 27°C), sample volumes from 50 ml to 1000 ml, suction line
lengths of 25 ft (7.6 m) or less, suction heads from 1 to 20 ft (0.3 to 6.1 m), atmospheric pressure between 29.92 and
31.89 inHg (760 and 810 mmHg), and a power source of a Teledyne Isco High Capacity Power Pack at 12.5 volts DC
no load output.
6712 Controller, Pump, and Tubing: Mechanical Specifications
Weight of Controller:Controller only: 13.0 lbs (5.9 kg)
Table 1-3 Technical Specifications for the 6712SR Refrigerated Sampler (Continued)
Weight of Nickel Cadmium
Battery:
Weight of Lead Acid Battery:5.7 lbs (2.6 kg)
Weight of Power Pac k:6.0 lbs (2.7 kg)
Weight of Battery Backed
Power Pack:
Controller Dimensions:Length: 10.3 in (26.0 cm)
Temperature Ranges:Operational: 32°F to 120°F (0°C to 49°C)
Maximum Altitude:2,000 Meters
Installation Category:II
Pollution Degree:2
Humidity:95% RH Maximum
Enclosure:NEMA 4X and 6 Pump: IP17Enclosure: IP67
Typical Delivered
Volume Accuracy:
Typical Repeatability: (The ability to repeat the delivered volume for a set of samples collected
4.3 lbs (2.0 kg)
6.6 lbs (3.0 kg)
Width: 12.5 in (31.7 cm)
Height: 10 in (25.4 cm)
Storage: 0°F to 140°F (-18°C to 60°C)
(The ability to deliver the programmed sample volume.)
±10 ml or ±10% of programmed value, whichever is greater.
under the same conditions.)
±5 ml or ±5% of the average of the maximum and minimum sample volume
in a sample set, whichever is greater, at lifts up to 25 feet.
Typical Pump Flow Rate and
Line Transport Velocity:
Maximum Suction Head: (The maximum suction head is the vertical height at which a sample can be taken.)
Pump Tube Life: Tube life may vary depending on the abrasiveness of the sample liquid.
Suction HeadFlow RateLine Transport Velocity
3 feet3.9 liters per minute3.0 ft/s (0.91 m/s)
5 feet3.9 liters per minute3.0 ft/s (0.90 m/s)
10 feet3.7 liters per minute2.9 ft/s (0.87 m/s)
15 feet3.6 liters per minute2.7 ft/s (0.83 m/s)
20 feet3.3 liters per minute2.5 ft/s (0.77 m/s)
23 feet3.1 liters per minute2.3 ft/s (0.71 m/s)
25 feet2.8 liters per minute2.2 ft/s (0.66 m/s)
28 ft (8.5 m) at 30 inHg (762 mmHg)
Recommended maximum 1,000,000 pump counts. This equates to 912
standard samples. A standard sample is 200 ml at 5 ft (1.5 m) suction head
using a 10 ft (3 m) vinyl suction line.
6712 Controller: Electrical Specifications
Controller Internal Battery:5 years minimum (maintains internal logic, program settings & stored data)
Real Time Clock Accuracy:1 minute per month
Program Memory:Nonvolatile programmable Flash.
Can be field updated via interrogator connector.
1-8
6712SR Refrigerated Sampler
Section 1 Introduction
Table 1-3 Technical Specifications for the 6712SR Refrigerated Sampler (Continued)
Sampler Power
Requirements:
Nominal: 12 volts DC supplied by the refrigerator
Operational: 11 to 13 Volts DC
Absolute Maximum: 14.4 Volts DC
Power Pack Requirement s:
Use only Teledyne Isco-made
power packs certified by UL. (P/N
60-1684-088)
120VAC ±12VAC, 60 Hz., 1.0 Amp.
Note: This is the only version certified by UL. The line cord (mains
connect cable) is the “Disconnect Device.”
Power Consumption
a
6712 Controller in Standby10 mA
Average Current of Accessories
Controller Display Backlight228 mA
701 pH Module
710 Ultrasonic Module
b
b
720 Submerged Probe Module
730 Bubbler Module
b
b
11 mA
11 mA
11 mA
— at 2 ft of liquid level24 mA
— at 10 ft of liquid level31 mA
750 Area Velocity Module
780 4-20 mA Module
YSI 600 with pH, DO, Conductivity, and Temperature
Programmable Analog 4-20 mA Output Option
b
b
b
c
12 mA
10 mA
11 mA
124 mA
CDMA cellular telephone modem
— standby current35 mA
— current while communicating150 mA
GSM cellular telephone modem
— standby current62 mA
— current while communicating230 mA
a. Current ratings when input power is 12.5 VDC and ambient temperature is 77 °F (25 °C)
b. Average current when programmed to take readings at 15 minute intervals.
c. Rating for three outputs.
Sampler Only
Operating Current:
Approximately 30 mA based on 200 ml sample every hour, 10 ft (3 m) suction
line, and 5 ft (1.5 m) suction head.
Teledyne Isco External Battery Capacity:Number of Complete Standard Sampling Routines
Nickel-Cadmium BatteryLead-Acid Battery
Sampler Only:6 9
Sampler with pH Module:6 9
Sampler with Ultrasonic Module:6 9
Sampler with Submerged Probe Module:6 9
Sampler with Bubbler Module (1-2 ft head):3 5
Sampler with Area Velocity Module:4 6
Sampler with 4-20 mA Module:6 9
A Standard Sampling Routine is a 200 ml sample taken every hour in 24 bottle mode, with a 10 foot (3 m) vinyl suction line at 5 feet (1.5 m) of head. The module is set to take a reading every 15 minutes.
Flow Meter
Signal Requirement:
5 to 15 volt DC pulse or isolated contact closure of at least 25 millisecond duration. (4 - 20 mA or pulse duration signal may be converted with optional interface
unit.)
Equation: Q = a x H
where:
Q = flow
H = head
a,b,c, and d = entered values
Manning Formula: Round, U-channel, Rectangular, Trapezoidal
Area Velocity: Round, U-channel, Rectangular, Trapezoidal
Data Points: 50 level-flow rate points, 50 level-area points
gallons per second gallons per minute
million gallons per daycubic feet per second
cubic meters per secondcubic meters per hour
cubic meters per dayliters per second
feet per secondmeters per second
gallons million gallons
cubic feetcubic meters
liters
Rectangular; with and without end contractions
Cipoletti.
Optional sensor and 5 ft (1.55 m) cable to record temperature readings.
Intended for use with fiberglass refrigerated (FR) samplers.
Range: -40.0 °C to 100 °C
Accuracy specification: ±0.3 °C over a range of 0.0 to 10.0 °C.
Reading data is 2 bytes, with a storage resolution of 0.1 °C.
Table 1-3 Technical Specifications for the 6712SR Refrigerated Sampler (Continued)
Dry Weight:120 lbs (54 kg) Refrigerator only, no controller or bottle configuration
135 lbs (61 kg) Includes refrigerator, controller, pump tube, distributor shaft
extension, distributor arm and nut, and discharge tube for the 24 plastic bottle
configuration.
Dry Weight With: 24 plastic bottles, rack, hold down, no caps150 lbs (68 kg)
24 glass bottles, rack, expander ring, no caps170 lbs (77 kg)
12 plastic bottles, rack, hold down, no caps150 lbs (68 kg)
8 plastic bottles, rack, adaptor, no caps145 lbs (65 kg)
8 glass bottles, rack, adaptor, no caps155 lbs (70 kg)
2 plastic bottles, rack, no caps150 lbs (68 kg)
2 glass bottles, rack, no caps140 lbs (63 kg)
1-9.4 l plastic bottle and cap, no distributor arm or nut140 lbs (63 kg)
1-9.4 l glass bottle and cap, no distributor arm or nut145 lbs (65 kg)
1-15.0 l plastic bottle and cap, no distributor arm or nut140 lbs (63 kg)
Filled Bottle Weight:24 plastic bottles101 lbs(46 kg)
24 glass bottles104 lbs(48 kg)
12 plastic bottles89 lbs (41 kg)
12 glass bottles95 lbs (43 kg)
8 plastic bottles84 lbs (38 kg)
8 glass bottles90 lbs (41 kg)
4 plastic bottles98 lbs (45 kg)
4 glass bottles104 lbs(48 kg)
1 plastic bottle90 lbs (41 kg)
1 glass bottle94 lbs (43 kg)
ThermostatSettings: OFF, WARMER, COOLER and 39°F (4°C). The knob turns the
refrigeration system On/Off, and selects the temperature.
Temperature set point
accuracy
Pull-down time from 75°F
(24°C) to 39°F (4°C)
Recovery time, door open 1
minute with unit operating at
39°F (4°C), 75°F (24°C) ambient
temperature
Rain and spray resistant, but not watertight. Do not install in
locations where the refrigerator’s lower compartment could become
submerged.
1-12
6712SR Refrigerated Sampler
Section 1 Introduction
Table 1-4 Connector Specifications
Connector IconPin Location DiagramPin Function
POWER SOURCE
2-PIN MALE, SEALED
A
B
RAIN GAUGE9-PIN FEMALE, SEALED
E
A
D
F
I
H
B
C
G
INTERROGATOR6-PIN FEMALE, SEALED
B
C
D
E
A
F
AGround
B +12 volts DC
A +12 volts DC
BGround
C Programmable I/O1 pin
D Rain gauge input
E Not Connected
F SDI-12 Data
G Not Connected
H Programmable I/O2 pin
I Programmable I/O3 pin
ASwitched +12 volts DC
BGround
C Connection Sense
DTransmit
E Receive
FNC
FLOW METER6-PIN MALE, SEALED
C
B
A
D
F
E
8-PIN MALE, SEALED
MODULE
(
INMODULEBAY)
8
2
3
4
7
1
6
5
A +12 volts DC
BGround
C Flow Pulses In
D Bottle Number Out
Dual Sampler Out
E Event Mark Out
F Inhibit In
1NC
2 +12 volts DC
3Ground
4 Module Sense
5 Receive
6Transmit
7Clock
8 Control
2.1 Preparing the SamplerThe 6712SR is shipped to you with the controller mounted on the
refrigerator and a distributor shaft extension installed. Use
Figure 2-1 for reference when removing the controller. You must
remove the controller when:
• The internal desiccant needs recharging, the internal
battery needs to be replaced or when the controller
needs repair.
• You install a different bottle kit.
Each bottle kit has its own extension so that the distributor arm
is positioned at the right distance above the bottles. You must
remove the controller to replace the extension.
2.1.1 Installing the
Distributor Shaft
Extension
2.1.2 Mounting the
Controller
1. Install the extension before mounting the controller on the
refrigerator.
2. Select the extension of the correct length for the bottle kit,
and screw it on the distributor shaft. Secure it with the set
screw. See Figure 2-1.
BE SURE THE SET SCREW IS TIGHTENED INTO THE
DISTRIBUTOR SHAFT’S KEY. YOU MAY HAVE TO
LOOSEN THE EXTENSION SLIGHTLY AND ADJUST ITS
POSITION.
1. Install the four mounting rods into the bosses on the bottom of the case.
2. Fit the mounting rods through the four holes drilled in the
top of the refrigerator.
3. Slip a washer on each rod and secure the controller by
tightening the wing nuts.
4. Install the distributor arm and discharge tube.
5. Thread the stop arm into the hole in the side of the extension. Be sure the stop arm is directly above the distributor
arm.
2.1.3 Installing the
Distributor Arm and
Discharge Tube
Distributor Arm
The distributor arm is adjustable so that you can position the
discharge tube over the bottles of each kit. Each bottle kit also
uses a discharge tube of a specific length. Table 2-1 lists the
correct discharge tube lengths for each bottle kit. If you are using
bulk tubing to cut your own tubes, cut the ends of the tube
square, not at an angle, and cut the length accurately.
The two-piece distributor arm has four positions, marked on the
underside with the letters A, B, C, and D. Adjust the arm to the
correct position for the bottle kit being used. Table 2-1 shows the
correct position for each kit. Thread the discharge tube through
the spring and arm so that the tube protrudes from the arm
1
/16
to 1/8 inch. If too much tube protrudes from the arm it can catch
on bottles and jam the distributor arm.
Attach the arm to the distributor shaft extension. Secure the arm
to the extension with the black plastic nut. Slide the free end of
the discharge tube onto the bulkhead fitting. After installing the
distributor arm and discharge tube, run the distributor to each
bottle position to ensure proper installation.
2-2
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