Testo 650 Operating Manual

The reference for product quality

14

System case

System case (plastic) for measuring instrument, probes and
accessories, Probes in lid make it easy to find parts in case

0516 0400

Part no.

Calibration Certificates

ISO calibration certificate/Humidity, Calibration points freely
selectable from 5 to 95%RH at +15 to +35°C or at -18 to
+80°C

0520 0106

DKD calibration certificate/Humidity, Calibration points freely
selectable from 5 to 95%RH at +25°C or -20°C to +85°C

0520 0216

Part no.

Softcase for instrument and printer

SoftCase (protects instrument from impact) with carrier strap,
magnetic holder and probe holder

0516 0401

SoftCase for attachable printer (protects printer from
dirt/impact)

0516 0411

Part no.

Accessories for measuring instrument/probes

ComSoft 3 - Professional with data management, Incl. data­base, analysis and graphics function, data analysis, trend curve

0554 0830

RS232 cable, Connects instrument to PC (1.8 m) for data
transfer

0409 0178

Barcode reader to read in measurement locations, Quick and
accurate allocation of reading to site

0554 0460

Barcode labels, self-adhesive (1200 off), Location marked with
barcode, printing via software

0554 0411

Adhesive pockets (50 off) for printout, paper barcode labels...

0554 0116

Rechargeable battery set for instrument (4 rechargeables

2.4V/700mAh), Selected for quick recharging in instrument

0554 0196

Power unit 230 V/ 8 V/ 1 A, for instrument (European plug), For
mains operation and battery recharging

0554 1084

Car charging adapter, ready to measure following recharging in
car, Battery is recharged while travelling in car

0554 0424

Part no. Printer and Accessories

Attachable printer (securely attached) including 1 roll of ther­mal paper and batteries

0554 0570

Testo printer with 1 roll of thermal paper and 4 AA size
batteries, Prints readings on site

0554 0545

Part no.

Software, barcode and accessories Part no.

Spare Li cell to save RAM data, When changing battery or
rechargeable battery

0515 0028

Recommended Set: The aw value set to assure product quality

Checks product quality during food production

The tendency display in
testo 650 automatically
provides information on
the equilibrium status.

Different measurement
samples are easily read in
via barcode and docu­mentation is via the plug­in printer or PC/notebook

The testo 650 precision measur­ing instrument from the reference
class has everything the profes­sional user needs to complete
complicated measurement tasks
efficiently, accurately and conve­niently. testo 650 includes the
basic parameters humidity, tem­perature, pressure and you also
have the option of measuring
CO

2

, rpm, current and voltage.

Water activity is one of the most
important parameters in respect
of product quality in the food pro­duction sector.

The aw value provides informa­tion on chemically non-bonded
water. For this reason, it is an
important parameter when deter­mining the product quality in
many foodstuffs. The water activ­ity in food determines colour sta­bility, taste and shelf life. Potential
risks exist if the food has very
high water activity and is not ade­quately refrigerated.

testo 650

Accuracy of measurement ±0.01
aw. Reproducibility of the meas­urement ±0.003 aw. The accu­racy of the precision sensor has
been proven in international inter­laboratory tests!

• The trend display in testo 650
automatically indicates when
the equilibrium moisture has
been reached and the measure­ment is complete. Constant
monitoring is therefore not
required.

• Long-term stability of the mea­surement for years, i.e. fre­quent, time-consuming read­justments are no longer
necessary.

• Measuring system traceable to
national standards. Supplied
with DKD calibration certificate
if required. This also gives assu­rance in legal questions.

• Uncomplicated and reliable
documentation of the measured
results via attachable printer or
on PC.

The testo 650 reference
measurement system
sets standards in aw
value measurement

Reference humidity measuring instrument,
incl. battery, Li cell and calibration protocol, 2
channel humidity and temperature meas.
instrument with aw value measurement, pres­sure measurement with option of connecting
pressure probes, CO, CO2, rpm, mV/mA
transmitters

Part no. 0563 6501

testo 650

Reference humidity measuring instrument, incl. battery, Li cell and calibration protocol, 2
channel humidity and temperature meas. instrument with aw value measurement, pressure
measurement with option of connecting pressure probes, CO, CO2, rpm, mV/mA transmitters

0563 6501

aw value set: pressure-tight precision humidity probe with certificate, measurement
chamber and 5 sample bowls (plastic)

0628 0024

Attachable printer (securely attached) including 1 roll of thermal paper and batteries

0554 0570

SoftCase (protects instrument from impact) with carrier strap, magnetic holder and probe
holder

0516 0401

SoftCase for attachable printer (protects printer from dirt/impact), Protects from impact
and falls

0516 0411

DKD calibration certificate/Humidity, Calibration points freely selectable from 5 to 95%RH
at +25°C or -20°C to +85°C

We recommend:

0520 0216

aw value

aw value

°C

15

Use testo 625 to monitor ambient conditions when
cheese is maturing

testo 615 with probe inte­grated in housing

testo 615 / 625

Part no. 0560 6250

Humidity meter, with built-in
humidity/temperature probe, battery
and calibration protocol

testo 625

Part no. 0560 6150

Humidity meter, with securely attached
humidity/temperature probe incl. 1 m
probe cable, battery and calibration
protocol

testo 615

Accessories Ordering data

Control/adjustment containers (75.3%RH), for 1 point control
and adjustment of instrument

0554 0638

TopSafe (protection case) with bench stand, Protects instru­ment from impact and dirt

0516 0183

Case for instrument and probes, For safe and orderly storage

0516 0182

Part no.

ISO calibration certificate/Humidity, Electronic hygrometers; cal­ibration points 11.3%RH and 75.3%RH at +25°C

0520 0006

Technical data testo 625 testo 615

Accuracy
±1 digit

±3 %RH (+5 to +95 %RH)
±0.5 °C (-10 to +60 °C)

Meas. range +5 to +95 %RH

-10 to +60 °C

-20 to +50 °C td

+5 to +95 %RH
0 to +50 °C

-20 to +50 °C td

Resolution 0.1 %RH (+5 to +95 %RH)

0.1 °C (-10 to +60 °C)

Oper. temp. 0 to +50 °C

Storage temp. -20 to +70 °C

Battery life 100 h

The compact thermohygrometer
testo 615 with built-in probe
measures ambient conditions
e.g. in buildings, offices, ware­houses etc. The testo 625 with a
securely attached flexible humid­ity probe is ideal for measure­ments at difficult to access points
and in air conditioning ducts.

• Dewpoint calculation (td)

• Humidity sensor unaffected by
water

• Accuracy adjustment can be
carried out by the user

Monitor ambient conditions – Flexible and robust

Cable, 1.5 m long, connects probe with plug-in head to meas. instrument, PUR coating material 0430 0143

Accessories Ordering data Part no.

Cable, 5 m long, connects probe with plug-in head to measuring instrument , PUR coating material 0430 0145

Control and humidity adjustment set 11.3%RH/75.3%RH incl. adapter for humidity probes, Quick checks or calibration of humidity probe 0554 0660

Control and storage humidity (33%RH) for humidity probes 0554 0636

Teflon sintered filter, Ø 21 mm, for corrosive substances, High humidity range (long-term measurements), high velocities 0554 0666

Teflon sintered filter, Ø 12 mm, for corrosive substances, High humidity range (long-term measurements), high velocities 0554 0756

Stainless steel sintered cap, Ø 21 mm, can be screwed onto humidity probe, Protection in case of high mechanical load and high velocities 0554 0640

Stainless steel sintered cap, Ø 12 mm, is screwed onto humidity probe, For measurements at high velocity speeds or in dirt ingressed air 0554 0647

Conn.: Plug-in head. connection
cable 0430 0143 or 0430 0145
required

Ø 12 mm

Meas. range Accuracy t

99

IllustrationHumidity probes Part no.

Standard ambient air probe up to +70°C

0636 97400 to +100 %RH

-20 to +70 °C

±2 %RH (+2 to +98 %RH)
±0.4 °C (-10 to +50 °C)
±0.5 °C (remaining range)

12 s

Conn.: Plug-in head. connection
cable 0430 0143 or 0430 0145
required

Ø 12 mm

300 mm

Robust humidity probe e.g. for measuring
equilibrium moisture or for measurements in
exhaust ducts to +120°C

0636 21400 to +100 %RH

-20 to +120 °C

±2 %RH (+2 to +98 %RH)
±0.4 °C (-10 to +50 °C)
±0.5 °C (remaining range)

30 s

Conn.: Plug-in head. connection
cable 0430 0143 or 0430 0145
required

Precision pressure dew point probe for
measurements in compressed air systems
incl. cert. with test point -40°C tpd

0636 98410 to +100 %RH

-60 to +50 °C
tpd

±0.8 °C tpd (-4.9 to +50 °C tpd)
±1 °C tpd (-9.9 to -5 °C tpd)
±2 °C tpd (-19.9 to -10 °C tpd)
±3 °C tpd (-29.9 to -20 °C tpd)
±4 °C tpd (-40 to -30 °C tpd)

300
s

Conn.: Plug-in head. connection
cable 0430 0143 or 0430 0145
required

Ø 21 mm

Highly accurate reference humidity/temp.
probe incl. cal. cert.

0636 97410 to +100 %RH

-20 to +70 °C

* ±1 %RH (+10 to +90 %RH)
±2 %RH (remaining range)
±0.4 °C (-10 to +50 °C)
±0.5 °C (remaining range)

12 s

Reproducibility of aw
value ±0.003

aw value set: pressure-tight precision humidity probe
with certificate, measurement chamber and 5 sam­ple bowls (plastic)

0628 00240 to +1 aW

0 to +100 %RH

-20 to +70 °C

* ±0.01 aW (+0.1 to +0.9 aW)
±0.02 aW (+0.9 to +1 aW)
±0.4 °C (-10 to +50 °C)
±0.5 °C (remaining range)

* in the temperature range from +10°C to +30°C

You will find more information in the “Portable Reference Measurement Engineering” brochure and at www.testo.com.

300 mm