OHAUS ST400D-B User manual

STARTER 400D
Portable DO Meter
Instruction Manual
Medidor de DO Portátil
STARTER 400D
Manual de instrucciones
STARTER 400D
Oxymètre portable
Manuel d'instructions
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TABLE OF CONTENTS
1INTRODUCTION...................................................................1
1.1 Definition of Signal Warnings and Symbols ...................................... 1
1.2 Safety Precautions............................................................................ 2
1.3 Display and controls.......................................................................... 3
2INSTALLATION.....................................................................5
2.1 Package contents.............................................................................. 5
2.2 Installing the batteries ....................................................................... 5
2.3 Installing the electrode clip................................................................ 6
2.4 Installing the IP54 cover caps ........................................................... 6
2.5 Integrated stand for table top use ..................................................... 6
3SETUP...................................................................................8
3.1 Setting Auto/Manual Endpoint........................................................... 7
3.2 Setting Salinity Value ........................................................................ 7
3.3 Setting Temperature Unit.................................................................. 8
3.4 Setting the Date and Time ................................................................ 8
3.5 Setting Power State .......................................................................... 8
3.6 Setting Factory Reset........................................................................ 8
3.7 Setting New Probe Cap Parameter................................................... 9
4OPERATION........................................................................10
4.1 Calibration ....................................................................................... 10
4.1.1 Zero-oxygen solution................................................................ 10
4.1.2 Performing 1-point calibration .................................................. 10
4.1.3 Performing 2-point calibration ...................................................11
4.2 Sample measurement......................................................................11
4.3 Temperature measurement..............................................................11
4.4 Barometer pressure measurement ..................................................11
4.5 Using the memory........................................................................... 12
4.5.1 Storing a reading...................................................................... 12
4.5.2 Recalling from memory ............................................................ 12
4.5.3 Clearing the memory................................................................ 12
5MAINTENANCE..................................................................13
5.1 Error message................................................................................. 13
5.2 Meter maintenance.......................................................................... 13
5.3 Probe maintenance......................................................................... 14
6TECHNICAL DATA.............................................................15
6.1 Specifications................................................................................ 15
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STARTER 400D Portable DO Meter EN-1
1 INTRODUCTION
Thank you for choosing OHAUS. Please read the manual completely before using the
S
STARTER 400D
portable Optical DO (Dissolved Oxygen) meter to avoid incorrect operation.
The STARTER 400D has an excellent performance/price ratio and is designed with many useful
features. Optical DO probe Other accessories are also available from OHAUS.
Starter 400D offers many practical features such as:
xErgonomic, multifunctional design for ambidextrous measurements or bench top use
xMeter can measure barometric pressure automatically to compensate the DO value; Salinity
value can be set to compensate the DO value.
xIP54 protection against dust and water
xOhaus’ renowned user friendly software
1.1 Definition of Signal Warnings and Symbols
Safety notes are marked with signal words and warning symbols. These show safety issues and
warnings. Ignoring the safety notes may lead to personal injury, damage to the instrument,
malfunctions and false results.
Signal Words
WARNING For a hazardous situation with medium risk, possibly resulting in
injuries or death if not avoided.
CAUTION For a hazardous situation with low risk, resulting in damage to the
device or the property or in loss of data, or injuries if not avoided.
Attention For important information about the product
Note For useful information about the product
Warning Symbols
General Hazard
Explosion Hazard Corrosive Hazard
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EN-2 STARTER 400D Portable DO Meter
1.2 Safety Precautions
CAUTION Read all safety warnings before installing, making connections, or
servicing this equipment. Failure to comply with these warnings could result in
personal injury and/or property damage. Retain all instructions for future reference.
xUse the equipment only in dry locations.
xDry off any liquid spills immediately. The instrument is not watertight.
xUse only approved accessories and peripherals.
xOperate the equipment only under ambient conditions specified in these instructions.
xDisconnect the equipment from the power supply when cleaning.
xDo not operate the equipment in hazardous or unstable environments.
xService should only be performed by authorized personnel.
WARNING Do not use this instrument in an environment subject to explosion
hazards. The housing of the instrument is not gas tight (explosion hazard due to
spark formation, corrosion caused by the ingress of gases).
CAUTION When using chemicals and solvents, comply with the instructions of the
producer and the general lab safety rules.
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STARTER 400D Portable DO Meter EN-3
1.3 Display and controls
Display
31
Time: HH:MM:SS
2
Date: YYYY-MM-DD
3
calibration data
:|K-1|İ0.3 and
|B|<0.1
Probe condition is very good
calibration data
: 0.3İ|K-1|İ0.4 and |B|
<0.1
Probe condition is acceptable.
4
Measurement icon - measurement (calibration) is running
5
Calibration icon - calibration is running
6
Power state icon
, include power always on icon , means m
eter will not automatically turn
off
; and auto-off icon which means after 10 minutes no operation meter will turn off
(see
4.4); power state icon position is at the top-left of the battery status icon.
7
Battery status icon –the charged status of the battery
8
DO reading: mg/L and %
9
Temperature during measurement or in calibration process
10
Barometric pressure during measurement or in calibration process
11
Data log: memory number
12
ppt for salinity entry
11
12
13
1
6
5
4
3
2
7
8
9
10
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EN-4 STARTER 400D Portable DO Meter
Controls
Button
Press & release
Press & hold
for
2 seconds
- Start or endpoint measurement
(manual endpoint mode)
-
Confirm setting, confirm
entered
value for setting
-
switch between
auto endpoint
and manual endpoint mode
-
Start calibration
- Review the latest calibration
data
-
Meter turn on
-
Back to measurement screen
- Meter turn off
- Store current reading to memory
-
Increase value during setting
-
Scroll up through the memory
-
Recall stored data
-
Enter setup screen
-
Scroll down
through the memory
- Reset factory setting
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STARTER 400D Portable DO Meter EN-5
2 INSTALLATION
Carefully unpack the box.
2.1 Package contents
The ST400D kit has the following items:
We also offer ST400D-G kit which includes ST400D kit and a portable bag.
Accessories:
Model
Description
P/N
STDO21
Optical DO probe
30219117
DO Zero Oxygen Chemical
30059257
Portable Bag for portable meters
30031635
2.2 Installing the batteries
Remove the battery cover screw using a coin or screwdriver and remove the battery cover
Insert the batteries in the battery compartment as shown
Replace the battery cover and tighten the battery cover screw
ST400D
Units
STARTER 400D meter
1
STDO21 (with 1.0m cable)
1
AAA battery
4
Electrode Clip
1
IP54 cover caps
1 set
Wrist Strap
1
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EN-6 STARTER 400D Portable DO Meter
2.3 Installing the electrode clip
The electrode clip is an electrode holder that can be placed next to the display on either side of
the housing.
Attach the clip by inserting the tabs into the recess.
Slide the clip forward to lock in position. Slide the shaft of the probe into the clip from above.
2.4 Installing the IP54 cover caps
Use the small plastic tool as shown:
2.5 Integrated stand for table top use
Starter 400D has an integrated table stand as shown, which can be pushed out to use the meter on
a lab bench or desk. To close the stand, push the middle edge of the stand toward the meter.
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STARTER 400D Portable DO Meter EN-7
3SETUP
Press to enter the setup interface. We have 7 setting items, they are:
1) Auto/Manual Endpoint
2) Salinity Value
3) Temperature Unit
4) Date and Time
5) Power State
6) Reset Factory Setting
7) New Probe Cap Parameter
3.1 Setting Auto/Manual Endpoint
When in calibration, ST400D is only work at Auto End Point Mode.
The default endpoint mode of ST400D for measurement is Auto End Point Mode. When users
want to judge the endpoint manually, you can shift to Manual Endpoint Mode.
End point Mode:
oWhen in Manual Mode, to manually reach and lock a pH measurement value, you
need to press button- when reading is stableˈthen the measurement value
freezes; And meter displays .
oWhen in Auto End Point Mode, the meter determines when the reading is stable
then locks the measurement or calibration value automatically, the reading freezes;
the meter displays .
Users can also change the endpoint mode by shortcut -- Press and hold button- to shift the
End Point Mode.
3.2 Setting Salinity Value
Since salinity has an influence on the dissolved oxygen value, it is important to input the correct
salinity value. The meter can compensate salinity for measurements in solutions with salinity from
0 to 50 ppt. The default value for salinity is 0.0 ppt.
Press button- or button- to adjust the salinity value.
Press button- to confirm the value or press button- to return to the Setting screen.
Normally seawater salinity is 35ppt, which means 35g of salt per 1000g seawater.
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EN-8 STARTER 400D Portable DO Meter
3.3 Setting Temperature Unit
Ohaus optical DO probe STDO21 include a built-in temperature probe, the meter will be in
Automatic Temperature Compensation (ATC) mode automatically. You can select the temperature
unit according to your preferred: °C or °F.
Note: °C = 5/9 (°F -32)
The default setting is 25 °C (77°F).
3.4 Setting the Date and Time
The Date format is yy-mm-dd. Press button- or button- to adjust the value of each
numerical digit. Press button- to confirm current value then goes to next numerical digit.
3.5 Setting Power State
We have 2 power states: "Auto OFF" or "Always ON".
When "Auto OFF" is selected, which means the meter will turn off the powder without any press
operation after 10 minutes and auto-off icon will display at the top-left of the battery status icon.
"Always ON" means power will not turn off automatically, and the power always-on icon
displays.
Ohaus suggest you to select "Auto OFF” so to save power of batteries.
3.6 Setting Factory Reset
Press button- and button- together to enter the Reset Factory Setting screen.
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