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testo 205, 206, 230
Compact pH Measuring Instruments With Pro Engineering
With interchangeable measurement electrode
pH
°C
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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The new pH measuring instruments with innovative probe engineering
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Measurement of the pH value plays an
important role in many areas. Anywhere where
there are chemical and biochemical reactions,
the pH value has an important indicator
function.
Even though the engineering has been
established on the market for years, there are
still some application problems:
· Short life span of pH probes due to glass
breakage and dirt ingress, for example
· Sensitivity to dirt of the pH probe resulting in
incorrect measurements
· Spillage of storage solution
· Handling problems when calibrating
· Lack of one-hand penetration pH probes for
liquid and viscoplastic substances
· Lack of combined temperature and pH
measurement
Together with experts from industry and the
trades, Testo has developed innovative
solutions.
Instead of a liquid electrolyte, Testo pH probes
have a gel electrolyte as a reference substance
for pH measurement which facilitates the use of
a hole diaphragm between the measurement
electrode and housing in place of the microporous structure usually used in pH probes.
The micro-porous structure becomes blocked
up more quickly, similar to a finely woven sieve,
consequently requiring regular service which in
return results in a shorter life.
Due to the large volume of gel electrolyte and
the hole diaphragm, Testo pH probes are not
only leakproof, they are almost completely
maintenance-free, robust and and unaffected
by dirt and dust.
The combination of the pH penetration tip and
temperature probe in a one-hand instrument for
accurate and fast temperature compensation is
unique. Consequently, accurate readings are
guaranteed in all ambient conditions.
With the development of different, breakproof
probe geometries, Testo is making available
special solutions for liquid as well as for
viscoplastic substances.
The leakproof storage solution is also new.
pH probes must be stored in moist conditions,
when not in use, in order to prevent the glass
membrane coating around the measurement
electrode and the diaphragm from drying out.
Pure water alone should not be used since
water would release the conducting
components contained in the probe
electrolytes. A potassium chloride solution is
usually used for this purpose. As with every
liquid, it can leak which, particularly in the food
branch, can lead to contamination of raw
foodstuffs or products.
Testo, with its new gel storage, has eliminated
this disadvantage. The potassium chloride
solution is available in a container in gel form.
What doesn’t drip can’t leak!
pH1 probe head for liquids
pH2 probe head for semisolid
substances
Interchangeable probe
The potassium chloride solution
bonded in the gel cannot leak.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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Robust food penetration pH/C° meter with automatic
temperature compensation
Fast and convenient
measurement during production
pH tip embedded in break-proof
plastic
Set case with testo 205, pH 4.0
and 7.0 buffers as well as
storage cap
pH buffer solution in the storage
bottle with dosing container
The professional pH measuring instrument
for the food sector
testo 205 is a pH measuring instrument,
developed together with experts from the
food sector, for measurements in viscoplastic
materials. Its main application is to be found
in meat processing. Its ergonomic design and
its surface display make the testo 205 ideal
for applications in production, Incoming
goods and for recurring measurements. The
combination of the pH penetration tip and the
temperature probe for fast and accurate
temperature compensation is unique.
Automatic recognition of a stable reading
makes the whole measurement process
much easier.
Your benefits
• Combined penetration tip with temperature
probe
• Measurement tip can be changed by user
• Maintenance-free gel electrode
• Backlit display
• Audible button feedback
• 2 line display
• Automatic full scale value recognition
• 1, 2, or 3 point calibration possible
Complete case for field use
All of the required accessories are clearly
arranged in the high-quality aluminium case
together with the testo 205 measuring
instrument. The containers with the buffer
solutions can be set up in the case so that
calibration can be carried out on site.
Set contents
• testo 205
• pH buffer 4 and 7 (each 250 ml)
• Gel storage cap
• Instruction manual
• Batteries
Instrument
testo 205
Parameters
pH / °C
Sensor
pH electrode / NTC
Number of meas. channels
2
Measurement range 0 to 14 pH
Resolution pH
0.01 pH
Resolution Temperature
0.1 °C
Accuracy Temperature
± 0.4 °C
Temperature compensation
Automatic
Display
LCD, 2 line, 0 to 70 °C
Measurement rate
2 measurements per second
Application temperature
0 °C to +60 °C
Storage temperature
-20 °C to +70 °C
Battery type
4x lithium button cell LR44
Probes
Screw-in pH / °C
probe modules
Accuracy pH
± 0.02 pH
Technical Data
Dimensions
197 x 33 x 20 mm
Weight
69 g
Battery life
80 h (Auto Off 10 Min)
Housing
ABS with soft coating in handle area,
protection class IP 65
3
testo 205
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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testo 206-pH1 / pH2 / pH3 – Versatile pocket-size pH sticks
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testo 206 pH1, pH2 and pH3
• The instrument is also suitable for outdoor
applications or for tough industrial
conditions thanks to the “TopSafe”
protection case included.
• 2 line display
• Automatic full scale value recognition
• 1, 2 or 3 point calibration possible
testo 206 pH1 and pH2
• Insensitive to dirt on account of hole
diaphragm and gel reference electrolyte
• Large volume of the gel reference electrode
guarantees a long life
• No maintenance necessary. No need to fill
up electrolyte solution.
• So versatile it can be used for nearly all
applications:
- for materials containing protein
- highly contaminated solutions can be
measured
• Low membrane resistance results in fast
and stable readings
• Unique design makes breakage practically
impossible
• Combination: pH penetration tip with
temperature measurement probe
testo 206 pH3
• Connection of all external probes with BNC
plug
• Automatic and manual temperature
compensation possible
pH1 probe head for liquids pH2 probe head for semisolid materials pH3 probe head with BNC interface
Benefits
Instrument
testo 206-pH1 and pH2
Parameters
pH / °C
Sensors
pH electrode / NTC
Number of meas. channels
2 channel
Measurement range 0 to 14 pH
Resolution pH
0.01 pH
Resolution Temperature
0.1 °C
Accuracy Temperature
± 0.4 °C
Temp. compensation
Automatic
Display
LCD, 2 line, 0 to 70 °C
Measurement rate
2 measurements per
second
Application temperature
0 °C to +60 °C
Storage temperature
-20 °C to +70 °C
Battery type
1x CR2032
Probes
Screw-in pH / °C probe
modules
Accuracy pH
± 0.02 pH
Technical Data
Dimensions
197 x 33 x 20 mm
Weight
Technical Data for testo 206-pH3:
Refer to the corresponding probe for pH and
temperature accuracy.
69 g
Battery life
80 h (Auto Off 10 Min)
Housing
ABS with Top Safe,
protection class IP 68
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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testo 206-pH1, compact pH tester for
liquids
Compact pH measuring instrument for
measuring liquids. Built-in temperature
probe for efficient temperature
compensation. Automatic recognition of a
stable reading makes it easier to measure.
The "TopSafe" case included makes the
instrument ideal for outdoor applications or
for use in tough industrial conditions.
Your benefits
• Versatile, accurate pH measuring
instrument
• Not affected by dust or dirt thanks to
the TopSafe protection case
• Maintenance-free gel electrode
• Built-in temperature probe
• 2 line display
• Automatic full scale value recognition
• 1, 2, or 3 point calibration possible
testo 206-pH1 applications
• pH measurement in the environmental
sector (water, waste water,...)
• Condensate neutralisation (heating
engineering/condensing boilers)
• pH applications in the industrial sector (e.g.
pH value of lubricants)
• pH measurement in the food sector (e.g.
fruit juice production)
• Generally: Liquids in all sectors
testo 206-pH1 is ideal for measurements in
liquids
The “TopSafe” case protects in tough
industrial conditions
testo 206-pH1 – Instruments Set
testo 206
instrument+probe
module pH1 +
TopSafe
Leak-proof gel
storage cap
Belt/wall holder
testo 206-pH1 – Starter Set
testo 206
instrument+probe
module pH1 +
TopSafe
Leak-proof gel
storage cap
High-standard
aluminium storage
case
Belt/wall holder
2 x 250ml buffer
solution with
dosing chamber
(pH 4 and pH 7)
Part no. 0563 2061 Part no. 0563 2065
testo 206-pH1, compact pH tester for liquids
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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testo 206-pH2, compact pH tester for viscoplastic substances
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testo 206-pH2, compact pH tester for
viscoplastic substances
testo 206-pH2 is the pH measuring
instrument for measurements in viscoplastic
materials, such as jelly, creams, meat,
cheese, marmelade and fruit. The
combination of a pH penetration tip and
temperature probe for efficient temperature
compensation is unique. Automatic
recognition of a stable reading makes the
whole measurement process easier. The
"TopSafe" case supplied makes the
instrument ideal for outdoor applications and
for use in tough industrial conditions.
Your benefits
• Compact pH measuring instrument with
penetration tip
• Not affected by dirt and dust thanks to
TopSafe protection case
• Maintenance-free gel electrode
• Automatic full scale value recognition
• Built-in temperature probe
• 2 line display
• 1, 2, or 3 point calibration possible
testo 206-pH2 applications
• Milk and milk products (yoghurt,cheese,...)
• pH value of mash during the production of
spirits
• pH value during food production (e.g. salad
dressing)
• Applications in the cosmetics sector
(cream production)
• pH monitoring during meat processing
Automatic full scale value recognition and
clear 2 line display.
testo 206-pH2 is ideal for measurements in
viscoplastic substances.
testo 206-pH2 – Instruments Set
testo 206
instrument +probe
module pH2 +
TopSafe
Leak-proof gel
storage cap
Belt/wall holder
testo 206-pH2 – Starter Set
testo 206
instrument +probe
module pH2 +
TopSafe
Leak-proof gel
storage cap
High-standard
aluminium storage
case
Belt/wall holder
2 x 250ml buffer
solution with
dosing chamber
(pH 4 and pH 7)
Part no. 0563 2062 Part no. 0563 2066
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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testo 206-pH3, pH tester for connecting
external probes
testo 206-pH3 is equipped with a BNC
socket which makes it possible to connect all
pH probes to the instrument. The
temperature value supplied is automatically
analysed if Testo pH probes with a built-in
temperature sensor are used. In the case of
probes without a temperature sensor, the
temperature can be set manually. Automatic
recognition of a stable reading makes the
measurement easier. Thanks to the “TopSafe”
protection case, the instrument is ideal for
outdoor applications and for use in tough
industrial conditions.
Your benefits
• External pH probes can be connected
• Not affected by dirt and dust thanks to
the TopSafe protection case
• 2 line display
• Automatic full-scale value recognition
• 1, 2, or 3 point calibration possible
testo 206-pH3 applications
• All of the probes with BNC plugs available
on the market can be connected.
• Testo probes with temperature
measurement facilitate automatic
temperature compensation.
• Ideal for pH measurements in the lab
• pH monitoring in the environmental sector
(water quality, earth samples)
• pH monitoring in the industrial sector (e.g.
photo processing vats)
testo 206-pH3 faciltates the connection of
external pH probes
Automatic temperature compensation in
external probes with temperature sensor
testo 206-pH3 – Instruments Set
testo 206
instrument+BNC
connection socket
+ TopSafe
Belt/wall holder
testo 206 pH3 – Affordable Set
testo 206 instrument
+ BNC connection
socket + Top Safe
pH probe Type 01
High-standard
aluminium storage
case
Belt/wall holder
Leak-proof gel
storage cap
2 x 250ml buffer
solution with
dosing chamber
(pH 4 and pH 7)
testo 206 pH3 – Versatile Set
testo 206 instrument
+ BNC connection
socket + TopSafe
pH probe Type 14
(not shown)
High-standard
aluminium storage
case
Belt/wall holder
Leak-proof gel
storage cap
2 x 250ml buffer
solution with
dosing chamber
(pH 4 and pH 7)
Part no. 0563 2068 Part no. 0563 2067
Part no. 0563 2063
testo 206-pH3, compact pH tester to connect external probes
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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Subject to change without notice. 0981.1124/hd/AC/Q/04.2004
Instruments
Part no.
0563 2052testo 205 Starter Set: pH measuring instrument with penetration probe, gel storage cap, wall holder, pH4 buffer (250 ml),
pH 7 buffer (250 ml) in an aluminium case
0563 2051testo 205 Instruments Set: pH measuring instrument with penetration probe, gel storage cap and wall holder
0563 2065testo 206-pH1 - Starter Set: pH measuring instrument with versatile probe, gel storage cap, TopSafe, wall holder, pH4
buffer (250 ml), pH 7 buffer (250 ml) in an aluminium case
0563 2061testo 206-pH1 - Instruments Set: pH measuring instrument with versatile probe, gel storage cap,TopSafe and wall holder
0563 2066testo 206-pH2 - Starter Set: pH measuring instrument with penetration probe, gel storage cap, TopSafe, wall holder, pH4
buffer (250 ml), pH 7 buffer (250 ml) in an aluminium case
0563 2062testo 206-pH2 - Instruments Set: pH measuring instrument with penetration probe, gel storage cap, TopSafe and wall
holder
0563 2063testo 206-pH3 - Instruments Set: pH measuring instrument with BNC connection socket, TopSafe and wall holder
0563 2067testo 206-pH3 - Affordable Set: pH measuring instrument with BNC socket, pH probe Type 01, gel storage cap, TopSafe,
wall holder, pH4 buffer (250 ml), pH 7 buffer (250 ml) in an aluminium case
0563 2068testo 206-pH3 - Versatile Set: pH measuring instrument with BNC socket, pH probe Type 14, gel storage cap, TopSafe,
wall holder, pH4 buffer (250 ml), pH 7 buffer (250 ml) in an aluminium case
Ordering Data
Qty.
Accessories
Part no.
0650 2051Spare pH probe for testo 205 incl. gel storage cap
0650 2061Spare pH probe pH1 for testo 206 incl. gel storage cap
0650 2062Spare pH probe pH2 for testo 206 incl. gel storage cap
0650 2063Spare probe Type 01 for testo 206-pH3, incl. gel storage cap
0650 2064Spare probe Type 14 for testo 206-pH3, incl. gel storage cap
0554 2051Storage cap for testo 205 with KCl gel filling
0554 2052Storage cap for testo 205 with KCl gel filling (pack of 3)
0554 2067Storage cap for testo 206 with KCl gel filling
0554 2068Storage cap for testo 206 with KCl gel filling (pack of 3)
0554 2061pH buffer solution 4.01 in a dosing bottle (250 ml)
0554 2062pH buffer solution 4.01 in a dosing bottle (pack of 3 each with 250 ml)
0554 2063pH buffer solution 7.00 in a dosing bottle (250 ml)
0554 2064pH buffer solution 7.00 in a dosing bottle (pack of 3 each with 250 ml)
0554 2065pH buffer solution 10.01 in a dosing bottle (250 ml)
0554 2066pH buffer solution 10.01 in a dosing bottle (pack of 3 each with 250 ml)
Qty.
Subject to change without notice.
Name
Company
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Address
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Signature
Sender
To :
testo 230, The Classic in the Compact Class
testo 230 is a complete pH measuring instrument combined with a high standard
thermometer in a compact, water-proof housing.
The redox voltage can be measured via the redox electrode Type 06.
The instrument has automatic temperature compensation and can be calibrated
in the pH range using standard and DIN buffers.
For more detailed information about testo 230, please send for the “pH
measuring instrument plus thermometer” (Part no. 0981 3434).
Part no. 0560 2304
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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