Eutech Instruments - available from Esis pH | Salinity
| Palmtops |
µSmart Water Quality SensorsEach
µSmart sensor incorporates a microprocessor providing µSmart sensors can be programmed with the data I/O line. µSmart Sensor general description: click here. µSmart sensors are intended
for permanent or semi-permanent installation, and connection to a data
logger or computer. Monitor Sensors water quality sensors are provided with 5m cable. Dissolved OxygenDissolved Oxygen: Hanna Instruments
Some of these have automatic compensation for salinity and
altitude, data logging, or printing HI 9142 Dissolved Oxygen Handheld Instrument with 4mm probe, cable & carry case $1052+GST 1/05 Electrical ConductivityTemperature compensated, with Temperature
Sensor, Output in µS (microSiemens). Cable
5m EC1: 0- 1000µS, EC2:
0- 2000µS, EC3: 0- 5000µS, EC4:
0- 10,000µS, EC5: 0- 20,000µS, EC-F EC Sensor Fertigaton Pack Ion Selective Electrode: ISE1, with 1m cable Hanna
Testers - handheld - Conductivity - pH - TDS - Temperature - Combination
- ORP - Other Hanna
Conductivity / TDS Meters - portable & benchtop Hanna
Wall Mount Indicators - see end
of this page Hanna
Sensors & Probes - Quick response times - Measure air, solids and
semi-solids - Lightweight - Conductivity Probes - Dissolved
Oxygen Probes - K Type & Thermocouple Probes - Pt100 Four-Wire Probes Hanna
Calibration and Storage Solutions Hanna HI 8936 Conductivity Transmitters
using 4-Ring Technology 4-Ring electrodes eliminate the polarization effect by splitting the four rings into 2 current electrodes and 2 voltage electrodes. When placed in a conductive liquid, the 2 current electrodes take the alternating voltage and create a current. This alternating current produces a Buffer Field from which polarization is absent. The voltage is then measured in this field assuring no altered readings. Voltage electrodes carry very little current. This allows the electrodes to be arranged in a manner where the current electrodes, which are the most susceptible to polarization, are placed where they cannot effect the voltage electrodes. Consequently, the Buffer Field is large enough for the voltage electrodes to take accurate readings without being effected by polarization. Hanna Instruments was the first instrumentation manufacturer to offer a 4-ring potentiometric probe with a conductivity meter. The potentiometric method of measuring electrical conductivity in liquids is by far the most accurate method available today. The four rings are aligned concentrically on the probe shaft. The two outer rings apply a voltage which creates a buffer field around the two inner rings. The inner rings pick up a current and measure the conductivity of the liquid inside the buffer field. This completely eliminates the polarization which occurs in the 2-ring amperometric method. Without polarization, the probe can also measure a larger range of conductivity because it does not suffer from electrolysis. This 4-ring method is used in all of the following probes. HI 3291 Detachable CONMET 1 ATC probe, length: 6.2"
(158 mm). Water Temperature Sensors - TW1A fully sealed and immersible sensor for water monitoring applications.
Turbidity Sensorwith or without motorised wiper with various ranges. NTU=Nephelometric
Turbidity Unit.
Current draw is approx 1mA average when economy mode is activated (unit is switched off between readings). Turbidity - Hanna Turbidity Meters Comply with USEPA standards - Logging capability Handheld Models : HI 93102 HI 93114 HI
93124 HI 93703 pH pH pH pH pHRanges:
PH3: 0-14 pH, with 1m cable, PH1:
4-10 pH, PH2: 2-12 pH
Data on Portable HI 8314 and HI 9025 (HI8314 or HI9025) (this site) Hanna HI 8614 pH
Transmitters with 4-20mA isolated output Two-wire pH & ORP transmitters Two-wire transmitters are widely used for process control in industry today. These instruments are particularly useful in industrial conditions where electrical interference is an important factor. By galvanically isolating the signals, any interference created is prevented from reaching the transmitter. One usually associates industrial environments with corrosive conditions, therefore any instrumentation used must be resistive to liquids and corrosion. Hanna transmitters meet all of these criteria and they only use two wires which reduces costs and eliminates the need for expensive coaxial cable. Two-wire transmitters are ideal when used in remote applications that do not have AC power available. As technology advances it is becoming more important to monitor certain processes closely, particularly from remote locations. Computers are commonly used to receive signals from transducers that have travelled a great distance (up to 1000', [300 meters]). When transmitting signals over such a distance, it is likely that a substantial portion of the signal will be absorbed by the resistance of the lines. Considerable differences in ground potentials and between the signal source and load, are inherent to long lines. Powering the system with an AC supply is beneficial in eliminating this problem. One of the two wires is power ground return, while the other is the power supply. The power supply line acts in a dual manner, as a power supply, and as a signal carrier. This allows the transmitter to operate with 2 wires. The signal current from the process controller is normally 4 to 20mA. When the load is connected with the power supply return line, the signal current will be proportional in the range of 4 to 20 mA. The ability to use a thinner gauge of wire greatly reduces the costs associated with the wiring of remote transmitters. Typically, a heavy gauge of shielded cable is required in order to minimize the ambient electrical noise from AC power sources, interference from electrical equipment or various other sources of noise. Thin wire will also provide better operation when the transmitter current output is a 4 to 20 mA signal. All of these features and many more, give Hanna Instruments transmitters the versatility to be used over long distances in almost any process control application. Hanna
HI 98143 pH & Conductivity Transmitter with 4-20mA isolated output Testo portable or hand-held water quality instruments (pH, temp., conductivity): click here ISE Ion Selective ElectrodesISE1
Ion Selective Electrode, with 1mtr cable (Call for application) Redox/ORPRO1, with 1m cable Dim: 389mm long, including hanging
loop, 32mm diameter. Hanna HI 8615 ORP Transmitters with 4-20mA Isolated OutputData: click here HI8615 $578.00 HI8615L 718.00 1/05 Water Flow Data on Water Flow Sensors: click hereFL1: Flow Sensor, propellor
type, µSmart FL2: Flow Sensor, impeller type (surface flow, paddle wheel, only partly submerged), µSmart Water Level SensorsWL1: 0-1m, WL2: 0-5m, WL3:
0-10m, WL4: 0-20m, WL5: 0-50m, Price includes
5m cable. Hanna Water Level Controllers HI 7871 & HI 7873 Mini Level Controllers Light level under waterthe Solar Radiation Sensor can be modified for underwater use. Please enquire. See
also Testo hand-held water quality instruments: click here pH,
temperature, conductivity |
pH, ORP, TDS,
EC, Resistivity and Level
Compact size (3 x 2")
Accurate and continuous
monitoring
Large LCD display
Data: click here for the following:
Dosing Pumps
Panel Mounted Controllers
Wall Mounted Controllers
Transmitters
pH & ORP Electrodes
Conductivity Probes
The controllers come equipped
with power relays operating at a maximum of 2A (240V).
Electrodes can be
installed quickly and easily.
Simply plug the universal BNC or DIN connector
over the socket and twist it into a secured position.
This feature greatly
improves the reliability of your instrumentation by assuring a positive connection.
Accurate measurements are displayed on a large LCD, enabling the operator
to check the controller readings easily.
Data: click here (broken link)
| PCA300/D 3500.00 +GST
1/05 HI9910
1050.00 |
HI991401 200.00 BL7916D 1299.00
| HI8002-01
2693.20 HI8614
578.00 HI8936A
365.00 |
Wall
Mount Indicators - HannaWall Mount Indicator - full data
• Interchangable probes
•
Water-tight casings
• Manual or automatic calibration
Hanna's
wall-mounted indicators are an ideal solution in applications where constant monitoring
of a stationary sample is required.
The following section contains indicators
to monitor pH, ORP, TDS, Conductivity and Temperature.
This versatile range of indicators allows the user to choose the probe that best fits their application . Selected instruments offered in this line also provide a visual alarm so the user can easily recognize if the monitored solution is out of specifications for the application.
Hanna's wall-mounted indicators
are very easy to install and use.
They are powered with a 12 V power supply
and provide very accurate results.
Many models feature an interchangeable
probe so that if an application requires a particular probe it can simply be plugged
into the meter.
Other features of these instruments include backlit LCD, manual or automatic calibration, water-tight casings, large and easy-to-read displays, calibration check feature for the thermometers, visual alarms and multi-parameter models that allow the user to monitor up to three different parameters with one indicator.
