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testo 645 - Humidity/temperature measuring instrument

Category: HVAC INSTRUMENTS

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

Part No . 0628 0024

Technical Data

Temperature – NTC

Measuring range -20 to +70 °C
Accuracy

±0.4 °C (+0.1 to +50 °C)
±0.5 °C (-20 to 1 °C)
±0.5 °C (+50.1 to 70 °C)

Reaction time 12 s

Humidity – Capacitive

Measuring range 0 to +100 %RH
Accuracy ±2 %RH (+2 to +98 %RH)

General Technical Data

Diameter probe shaft 21 mm

Robust high-temperature/humidity probe (up to +180 °C)

Part No. 0628 0021

Key Features:

Probe for temperature and relative humidity – suitable for high temperatures
Probe shaft diameter of 12 mm with the option of using a PTFE or stainless steel sintered cap

Technical Data

Temperature – NTC

Measuring range -20 to +180 °C
Accuracy

±0.4 °C (0.1 to +50 °C)
0.5 °C (Remaining Range)

Reaction time 30 s

Humidity – Capacitive

Measuring range 0 to +100 %RH
Accuracy ±2 %RH (+2 to +98 %RH)

General Technical Data

Length probe shaft 300 mm
Diameter probe shaft 12 mm

Flexible humidity probe (does not retain shape) for measurements in inaccessible places

Part No. 0628 0022

Thin humidity probe incl. 4 attachable protection caps for ambient air measurements

Part No. 0636 2130

Thin humidity probe incl. 4 attachable protection caps for ambient air measurements, measurements in exhaust air ducts and equilibrium moisture measurements

High humidity level probe w/ heated sensor element, no humidity on sensor

Part No. 0636 2142

Standard humidity/temperature probe (Ø 21 mm)

Part No . 0636 9740

Standard pressure dewpoint probe for measurements in compressed air systems

Part No. 0636 9840

Precision pressure dew point probe with measuring chamber

Part No. 0636 9841

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

Key Features:

Fast and accurate determination of the pressure dew point
High-precision trace humidity measurement
Pressure dew point measuring range: -60 to +50 °C tpd

Plug-in measuring tip, 550mm long, flexible

Part No. 0600 5793

Spare meas. head for pipe wrap probe, TC Type K

Part No. 0602 0092

Product Benefits:

Replaceable measuring head with thermocouple strip for temperature probe with clamping bracket 0602 4592
Measuring range: -60 to +130°C, briefly up to +280 °C
Simple pull out the old measuring head with thermocouple strip and replace with new measuring head

Temperature - TC Type K (NiCr-Ni) Technical Data

Measuring range -60 to +130 °C
Accuracy Class 2 ²⁾
Reaction time 5 s

2) Accor ding to standard EN 60584-2, the accuracy of Class 1 refers t o -40 t o +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Super quick-action immersion/penetration probe for measurements in liquids

Part No. 0604 0493

Super quick-action immersion/penetration probe for high temperatures

Part No. 0604 0593

Super quick-action immersion/penetration probe for measureme...

Part No. 0604 9794

Standard immersion/penetration probe

Part No. 0604 0273

Temperature - Pt100 Technical Data

Measuring range -200 to +400 °C
Accuracy Class A (-100 t1 +400 °C) Class B Remaining Range
Reaction time 20 s

Flexible precision immersion probe, cable heat-proof up to +265 °C

Part No. 0628 0016

Temperature - Pt100

Measuring range -100.0° to 265.0 °C
Accuracy ±(0 +0 % of mv)
Reaction time 80 s

Highly accurate immersion/penetration probe

Part No. 0628 0015

Temperature - Pt100

Measuring range -100 to +350 °C
Accuracy ±(0.06 °C +0.1 % of mv)
Reaction time 30 s

Connection cable

Part No. 0430 0143

Cable, 5 m long, connects probe with plug-in head to measuring instrument

Part No. 0430 0145

testo saline solution pot for checking humidity probes, 33 %RH

Part No. 0554 0636

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

Part No . 0628 0024

Technical Data

Temperature – NTC

Measuring range -20 to +70 °C
Accuracy

±0.4 °C (+0.1 to +50 °C)
±0.5 °C (-20 to 1 °C)
±0.5 °C (+50.1 to 70 °C)

Reaction time 12 s

Humidity – Capacitive

Measuring range 0 to +100 %RH
Accuracy ±2 %RH (+2 to +98 %RH)

General Technical Data

Diameter probe shaft 21 mm

Stainless steel sintered cap, Ø 21 mm, can be screwed onto humidity probe

Part No. 0554 0640

High-precision humidity/temperature probe (Ø 21 mm)

Part No. 0636 9741

Key Features:

High-precision humidity measurement: accuracy of up to ±1% RH
Probe shaft diameter of 21 mm: Use with different sintered caps possible
Can be used in the high humidity range
Temperature measuring range: -20 to +70 °C

Extension cable, 5 m long, between plug-in head cable and instrument

Part No. 0409 0063

PTFE sintered filter, Ø 21 mm, for corrosive substances

Part No. 0554 0666

Metal protection cage, Ø 12 mm for humidity probes

Part No. 0554 0755

Sintered PTFE filter, Ø 12 mm, for corrosive media

Part No. 0554 0756

Cap with wire mesh filter, Ø 12 mm

Part No. 0554 0757

RS232 cable

Part No. 0409 0178

Testo quick printer

Part No. 0554 0549

Compact printer, with IRDA technology offers fast, easy to read printouts of measurements at every job site. Internal magnets will hold the printer to magnetic surfaces for hands free operation.

Key Features: