| The
Model DO-32a low density Dissolved Oxygen meter is battery operated. It
incorporates a galvanic cell for water quality monitoring of rivers and
lakes. It is also well suited for Dissolved Oxygen management in BOD waste
water treatment tanks, culture ponds or other marine environments.
The unit provides pressure
and salinity compensation together with temperature compensation and offers
truly reliable data.
The Model DO-32a is easy to
use with a simple one touch air and automatic calibration. This field
portable unit is compact, light weight, and weatherproof.
Features
Wide dynamic Automatic
Range Selection
Covers wide range from 0~20 micro-g/litre to 0~20 milli-g/litre measuring
ranges. In addition with this wide measuring range, full automatic range
selection function is available. The automatic temperature compensation
function enables measurement from ultra low density levels such as micro-g/litre
(ppb) range to air saturated high ranges, with accurate performance.
Fast Response & Long
Life Sensor
Newly developed membrane type polarographic electrode is used in the sensor.
Therefore, long life span and fast response are realized. As two versions
of electrode are available; normal type and atomic power station use type.
The Model DO-32A can meet a wide variation of application requirements.
Easy Calibration
Span calibration can be done by air and it is also possible to perform
zero check calibration by electric zero (panel zero check) as well as
conventional calibration by zero standard solution.
Sample colour does not
affect measurement
The detector only responds to salinity (Cl-) and is unaffected by colouring
additives or seasonings.
Temperature Measurement
Function
Temperature and dissolved oxygen readings can be displayed simultaneously
and this data can be output from the meter to an analog recorder for monitoring
(recorder available separately).
Compact Design & Easy
Maintenance
The supplied flow cell is designed be compact and provide easy maintenance
and operation. The main unit is housed in a splash-proof enclosure, thus
it will be durable against water splashing if installed in a sampling
rack.
Dual Power Sources
The instrument can be used on DC power source as well as AC power. Consequently
it can be used for field work where AC power source is not available.
400 hours of continuous measurement can be achieved when alkali dry cells
are loaded.
Analog Record Output Terminal
Analog recorder can be connected to the output terminal, variation of
dissolved oxygen and temperature can be monitored and recorded continuously.
Specifications
| Product
Name: |
Low Density DO Mater. |
| Model
No.: |
DO-32a |
| Measurement
Object: |
Dissolved Oxygen |
| Measurement
Method: |
Membrane type Polarographic |
| Measurement
Ranges: |
Dissolved oxygen
0~19.99 micro-g/litre (ppb)
0~199.9 micro-g/litre (ppb)
0~1.999 mili-g/litre (ppm)
0~19.99 mili-g/litre (ppm).
Temperature: 0 to 45°C. |
| Range
Changeover: |
Auto/manual selection |
| Repeatability
(main Unit): |
Dissolved oxygen
±0.1 micro-g/litre (0~19.99)
±0.3 micro-g/litre (0~199.9)
±0.03 mili-g/litre (0~1.999)
±0.003 mili-g/litre (0~19.99) Temperature: ±0.1°C
(Accuracy : ±0.5°C). |
| Temp
Compensation Range: |
0~45°C (automatic)
|
| Output
Signals: |
Dissolved oxygen: 0~1V
(0~FS. for each range)
Temperature: 0~450mVDC (0 ~45°C)
Measuring ranges:
l00mV (0~ 19.99 micro-g/litre range)
200mV (0~199.9 micro-g/litre range)
300mV (0~1.999 mili-g/litre
range)
400mV (0~19.99 mili-g/litre range). |
| Ambient
Conditions: |
Temperature: 0~45°C
Humidity: 0~85% RH. |
| Power
Source: |
AC/DC, AC line using adapter
or 9VDC using Alkaline dry battery R6, AA or UM-2: 6 pcs. |
| Dimensions: |
Approx. 250(w) x 1 60(h)
x 95(d)mm. |
| Weight: |
Approx. 2.1kgs.
|
Outline & Dimensions
|
