TESTO 230 Instruction Manual
testo 230 · pH- and temperature measuring instrument
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Instruction manual
Visit us at www.TestEquipmentDepot.com
Toll Free 1-800-517-8431
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1 Contents
1 Contents
1 Contents ................................................................................................... 3
2 Safety and the environment .................................................................... 5
2.1. About this document ........................................................................ 5
2.2. Ensure safety ................................................................................... 5
2.3. Protecting the environment .............................................................. 6
3 Specifications .......................................................................................... 7
3.1. Use .................................................................................................. 7
3.2. Technical data ................................................................................. 7
4 Product description ................................................................................. 9
4.1. Overview.......................................................................................... 9
4.1.1. Control elements and connections ................................................................... 9
4.1.2. Display ........................................................................................................... 10
4.2. Connection variants ....................................................................... 11
5 First 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
6 Using 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
7 Maintaining the product ........................................................................ 20
7.1. Replacing the battery ..................................................................... 20
7.2. Cleaning the instrument ................................................................. 21
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1 Contents
8
Tips and assistance .............................................................................. 21
8.1. Questions and answers ................................................................ 21
8.2. Accessories and spare parts ......................................................... 24
9 Appendix ................................................................................................ 25
9.1. Electrode/application assignment ................................................. 25
9.2. Buffer table.................................................................................... 28
4
2 Safety and the environment
2 Safety 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
2.2. Ensure safety
product.
• 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.
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2 Safety and the environment
> Only use the product properly, for the purpose it is intended for
and within the parameters specified in the technical data. Do
2.3. Protecting the environment
not apply any force.
> 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.
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3 Specifications
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-
3.2. Technical data
solid to solid media.
3 Specifications
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
Operating
man -10...+150 °C
auto -50...+150 °C
0...+40 °C
temperature
Storage/transport
-20...+70 °C
temperature
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
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3 Specifications
Feature Values
Measuring
instrument
Electrode
24 months
12 months
12 months
Sensor
Electrodes/temperature sensors
Feature Values
pH universal plastic
electrode without
temperature sensor (0650
Measurement range: 0...14 pH
Operating temperature: 0...+60 °C
short-term up to +80 °C
2063)
pH universal plastic
electrode with temperature
sensor (0650 2064)
pH glass electrode with
temperature sensor (0650
1623)
pH food electrode without
temperature sensor (0650
Measurement range: 0...14 pH
Operating temperature: 0...+60 °C
Temperature sensor: Pt 1000
Measurement range: 0...14 pH
Operating temperature: -10...+80 °C
Temperature sensor: Pt 1000
Measurement range: 2...14 pH
Operating temperature: 0...+40 °C
0245)
Rugged NTC penetration
food sensor with special
Measurement range: -25...+150 °C
t
: 7 s
99
handle, reinforced PUR line
(0613 2411)
Stainless steel NTC food
sensor (IP65) with PUR line
Measurement range: -50...+150 °C.
t
: 8 s
99
(0613 2211)
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4 Product description
4.1. Overview
4.1.1. Control elements and connections
4 Product description
1 Display see Display page 10
2 Keyboard
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
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4 Product description
3 Battery compartment (on rear)
4 BNC connecting socket for pH and redox electrode
4.1.2. Display
5 Mini-DIN connecting socket for NTC temperature sensor
1 Reading (pH/mV, °C for temperature measurements without pH
electrode)
2 DIN/NBS buffer (display in alignment menu)
3 Reading (°C for temperature measurements)
4 Auto-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.
5 Sensor detection
Icon Function
Man
+Auto
Auto
6 Representation of alignment menu
7 Hold function / Auto-Hold function
8 Battery control:
• When switching on Battery voltage
• In operation: Warning of weak battery
Electrode without temperature sensor
External temperature sensor
Electrode with temperature sensor
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