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testo 526-2 - High-precision differential pressure measuring instrument

Order-Nr. 0560 5281

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Temperature-compensated differential pressure sensor
Multi-point and timed mean calculation
Freely selectable measuring rate for recording measurement data
2 additional probe inputs for the attachment of optional pressure and temperature probes

The testo 526-2 high-precision differential pressure measuring instrument is ideally suited for checking pressure in sensitive industrial processes, thanks to a measuring accuracy of ± 0.05% of final value. Two additional pressure and temperature probes can also be attached.

Details

Product Description

The testo 526-2 is a high-precision differential pressure measuring instrument. It has an internal sensor with a measuring range from 0 to +2,000 hPa. The differential pressure can be determined particularly precisely: to an accuracy of ± 0.05% of final value.

testo 526-2 differential pressure measuring instrument – versatile measurements thanks to additional probe inputs

Two freely assignable probe inputs enable the attachment of additional (optional) probes from Testo's large range of probes:

Differential pressure probes
Absolute pressure probes
Relative pressure probes
Temperature probes, such as surface, immersion and penetration probes

The high-precision differential pressure measuring instrument can do even more

Measurement data can be seamlessly recorded for tightness testing on containers thanks to the testo 526-2's test menu. To document the pressure test, there is an option enabling the measurement data to be processed and archived using software or printed out with the testo fast printer directly at the measuring location (software and printer optionally available).

The memory can record up to 25,000 readings. These are stored under their individually designated measuring locations (max. 99 measuring locations) which means they can be quickly found again. Measurement data can be saved individually or as a series of measurements. The measuring rate (0.04 seconds, 1 second to 24 hours) and the number of values to be stored can be freely selected.

Delivery Scope

testo 526-2 high-precision differential pressure measuring instrument, including quick-release connections, calibration protocol and batteries.

Technical Data

Temperature - NTC
Measuring range	-40 to +150 °C
Accuracy	±0.2 °C (-10 to +50 °C)* ±0.4 °C (Remaining Range)*
Resolution	0.1 °C

Temperature - NTC

Measuring range

-40 to +150 °C

Accuracy

±0.2 °C (-10 to +50 °C)*

±0.4 °C (Remaining Range)*

Resolution

0.1 °C

*Accuracy information applies only to instrument without probes connected

Temperature - TC Type K (NiCr-Ni)
Measuring range	-200 to +1370 °C
Accuracy	±0.4 °C (-100 to +200 °C)* ±1 °C (Remaining Range)*
Resolution	0.1 °C

Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1370 °C

Accuracy

±0.4 °C (-100 to +200 °C)*

±1 °C (Remaining Range)*

Resolution

0.1 °C

*Accuracy information applies only to instrument without probes connected

Differential pressure (internal sensor) - Piezoresistive
Measuring range	0 to 2000 hPa
Accuracy	±0.05 % of fsv
Resolution	0.1 hPa
Static pressure	2000 hPa (abs)
Overload	3000 hPa
Zeroing	to 50 hPa

Differential pressure (external probe) - Piezoresistive

Measuring range

0 to 2000 hPa

Accuracy

±0.1 % of mv*

Resolution

0.10 Pa (0638 1347)

0.01 hPa (0638 1547)

0.001 hPa (0638 1447)

0.1 hPa (0638 1847 / 0638 1647)

*Accuracy information applies only to instrument without probes connected

Differential pressure (external probe) - Ceramic
Measuring range	-1 to 400 bar
Accuracy	±0.2 % of fsv*
Resolution	0.01 bar

*Accuracy information applies only to instrument without probes connected

General technical data
Dimensions	219 x 68 x 50 mm
Operating temperature	0 to +50 °C
Product-/housing material	ABS
Measuring rate	0.04 s
Battery type	9 V (6LR61)
Battery life	Continuous operation w/ internal pressure sensor: 30 h; With rech. battery: 10 h; With carbon battery: 18 h
Connection	Hose: inner Ø 4 mm outer Ø 6 mm
Display type	LCD (Liquid Crystal Display)
Display function	with symbol, 7 segment display and point matrix
Display update	2x per second, in fast measurement 4x per second
Power supply	Battery/Rechargeable battery,Mains unit 12 V
Interface	RS232
Memory	100 kB; 25,000 measuring values
Storage temperature	-20 to +70 °C
Weight	300 g