TESTO 230 User manual
2
1 Contents
3
1Contents
1Contents ...................................................................................................3
2Safety and the environment....................................................................5
2.1. About this document ........................................................................5
2.2. Ensure safety...................................................................................5
2.3. Protecting the environment..............................................................6
3Specifications ..........................................................................................7
3.1. Use ..................................................................................................7
3.2. Technical data .................................................................................7
4Product description.................................................................................9
4.1. Overview..........................................................................................9
4.1.1. Control elements and connections...................................................................9
4.1.2. Display...........................................................................................................10
4.2. Connection variants.......................................................................11
5First steps ..............................................................................................13
5.1. Commissioning ..............................................................................13
5.1.1. Installing the sensor.......................................................................................13
5.1.2. Switching the instrument on...........................................................................13
5.2. Calibrating the instrument..............................................................14
5.2.1. Single-point calibration...................................................................................14
5.2.2. Two-point calibration...................................................................................... 15
6Using the product ..................................................................................17
6.1. Performing settings........................................................................17
6.2. Measuring......................................................................................18
6.2.1. pH-measurement ...........................................................................................18
6.2.2. Temperature measurement............................................................................19
6.2.3. Redox measurement......................................................................................19
6.2.4. Hold function..................................................................................................19
6.2.5. Auto-Hold function .........................................................................................20
7Maintaining the product ........................................................................20
7.1. Replacing the battery.....................................................................20
7.2. Cleaning the instrument.................................................................21
1 Contents
4
8Tips and assistance .............................................................................. 21
8.1. Questions and answers ................................................................ 21
8.2. Accessories and spare parts......................................................... 24
9Appendix................................................................................................ 25
9.1. Electrode/application assignment ................................................. 25
9.2. Buffer table.................................................................................... 28
2 Safety and the environment
5
2Safety and the environment
2.1. About this document
Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use. Pay
particular attention to the safety instructions and warning advice
in order to prevent injuries and damage to the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
2.2. Ensure safety
• Temperatures given on probes/sensors relate only to the
measuring range of the sensors. Do not expose handles and
feed lines to temperatures in excess of 70 °C (158 °F), unless
they are expressly permitted for higher temperatures.
• Degree of protection IP 54 is only ensured with the sensor or
blanking plug plugged in.
• Electrolytic solutions are corrosive; do not bring into contact
with measuring instruments or other sensitive surfaces!
• Ether, ester, cetones as well as aromatic or halogenated
hydrocarbons will attack the shaft material and must therefore
not come in contact with the electrode.
• The electrode housing is partly made of glass,
CAUTION, DANGER OF BREAKAGE!
> Only perform maintenance and repair work on this instrument
that is described in the documentation. Strictly follow the
specified steps. Use only original spare parts from Testo.
> Do not store the product together with solvents. Do not use any
desiccants.
> Do not perform any contact measurements on uninsulated, live
parts.
> Dangers may also arise from objects to be measured or the
measuring environment: Always comply with the locally valid
safety regulations when performing measurements.
2 Safety and the environment
6
> Only use the product properly, for the purpose it is intended for
and within the parameters specified in the technical data. Do
not apply any force.
2.3. Protecting the environment
> Dispose of faulty rechargeable batteries/spent batteries in
accordance with the valid legal specifications.
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
3 Specifications
7
3Specifications
3.1. Use
The testo 230 serve the purpose of determining pH-values, redox
potentials and temperature in aqueous solutions as well as in semi-
solid to solid media.
3.2. Technical data
Instrument
Feature Values
Measurement range pH 0...14, -50...+150 °C, ±1999 mV
Resolution pH 0.01, 0.1 °C (°F), 1 mV
Accuracy
(± 1 digit)
±0.01 pH
±0.4 °C (-50...-25 °C)
±0.2 °C (-25...+75 °C)
±0.4 °C (+75...+100 °C)
±0.5 % of mv (+100...+150 °C)
±1 mV (0…±999 mV)
±2 mV (±999… ±1999 mV)
Temperature
compensation
man -10...+150 °C
auto -50...+150 °C
Operating
temperature
0...+40 °C
Storage/transport
temperature
-20...+70 °C
Display two-line
Connections BNC compatible socket for pH or pH/°C
resp.
Mini-DIN socket for temperature sensor
Battery life approx. 100 hrs.
Weight 180 g (incl. battery)
Degree of protection IP 54 (only with plugged in original plug or
blanking plug)
Housing material ABS
Warranty
Terms of warranty see
www.testo.com/warranty
3 Specifications
8
Feature Values
Measuring
instrument
Electrode
Sensor
24 months
12 months
12 months
Electrodes/temperature sensors
Feature Values
pH universal plastic
electrode without
temperature sensor (0650
2063)
Measurement range: 0...14 pH
Operating temperature: 0...+60 °C
short-term up to +80 °C
pH universal plastic
electrode with temperature
sensor (0650 2064)
Measurement range: 0...14 pH
Operating temperature: 0...+60 °C
Temperature sensor: Pt 1000
pH glass electrode with
temperature sensor (0650
1623)
Measurement range: 0...14 pH
Operating temperature: -10...+80 °C
Temperature sensor: Pt 1000
pH food electrode without
temperature sensor (0650
0245)
Measurement range: 2...14 pH
Operating temperature: 0...+40 °C
Rugged NTC penetration
food sensor with special
handle, reinforced PUR line
(0613 2411)
Measurement range: -25...+150 °C
t99: 7 s
Stainless steel NTC food
sensor (IP65) with PUR line
(0613 2211)
Measurement range: -50...+150 °C.
t99: 8 s
4 Product description
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4Product description
4.1. Overview
4.1.1. Control elements and connections
1Display see Display page 10
2Keyboard
Key Function
Switching on/off
To call up individual menu levels
To hold readings or, with manual input function, set
readings
To select menu options or, with manual input
function, set readings
4 Product description
10
3 Battery compartment (on rear)
4 BNC connecting socket for pH and redox electrode
5Mini-DIN connecting socket for NTC temperature sensor
4.1.2. Display
1Reading (pH/mV, °C for temperature measurements without pH
electrode)
2DIN/NBS buffer (display in alignment menu)
3Reading (°C for temperature measurements)
4Auto-Off display: The circle segments in the display go out in a
2.5 minute interval. After the last segment (10 minutes) the
instrument switches off. Switching off the function, see
Switching Auto-Off on / off page 17.
5Sensor detection
Icon Function
Man Electrode without temperature sensor
+Auto
External temperature sensor
Auto Electrode with temperature sensor
6Representation of alignment menu
7Hold function / Auto-Hold function
8Battery control:
• When switching on Battery voltage
• In operation: Warning of weak battery
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