Differential pressure measuring device – testo 526-2 (DISCLOSED)

The testo 526-2 is a high-precision differential pressure measuring instrument with an integrated differential pressure sensor with a measuring range of 0 to +2000 hPa. Differential pressure can be determined particularly precisely thanks to an accuracy of up to ±0.05 % of the measured value.

Provide cover: Differential pressure meter testo 526-2, batteries and factory test paper.

Features of the testo 526-2 differential pressure meter

Measurement data can be recorded seamlessly for tightness checks on containers with the testo 526-2. Alternatively, you can optionally allow the measurement data to be processed and stored in the software or printed out on site with the Testo fast printer (optional order).

With an internal memory of up to 25,000 measurement values, the testo 526-2 allows you to measure and store them individually (up to 99 measurement locations). This means that your data can be retrieved quickly. You can also customize the measurement interval (0.04 seconds; 1 second to 24 hours) and the number of stored values.

Technical specifications of testo 526-2

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 (pressure)
Overload	3000hPa
Zeroing	up to 50 hPa

Differential pressure (external probe) – Piezoresistive

Measuring range

0 to 2000 hPa

Accuracy

±0.1 % measured value*

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 specifications
Size	219x68x50mm
Operating temperature	0 to +50 °C
Shell material	ABS
Measurement cycle	0.04 seconds
Battery type	9V (6LR61)
Battery life	Continuous operation with internal pressure sensor: 30 h; With rech. battery: 10 h; With carbon battery: 18 h
Connect	Hose: inner Ø 4 mm outer Ø 6 mm
Screen type	LCD (Liquid Crystal Display)
Display function	with symbols, 7 segment display and point matrix
Display updates	2x per second, in fast measurement 4x per second
Power supply	Battery/Rechargeable battery, 12 V power supply
Interface	RS232
Memory	100 kB; 25,000 measurement values
Storage temperatures	-20 to +70 °C
Weight	300g