ZEDcore

A modular concept

By integrating the ZEDcore in plug-and-play mode in all ZED devices (apart from ZEDeco), your leak testing becomes as flexible as possible without requiring complicated installation.

This modularity allows measuring circuits to be exchanged quickly and easily in one device or a measuring module to be used across different devices.

Maximum modularity for leak testing

Experience the unimagined flexibility of ZEDcore for the ZED device family.

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Measuring methods

RD	RD relative pressure (optional: 2-channel)
RD / GP	relative pressure with bell testing
RD / DF	relative pressure with flow rate
DD	differential pressure
SD	accumulation pressure
MF	mass flow

(See technical data for available pressure ranges)

Accessories (optional)

External ventilation valve
Temperature compensation

Application examples

Automotive: Engines, cylinder heads, gears, diaphragms, auxiliary heaters, power adapters, hybrid drives, heat exchangers, control electronics, batteries, lines, valves, fuel cells, pumps, etc.
Medical technology: Catheters, dialysis filters/boxes, flushing systems, hose systems, secretion containers, syringes, external lung machines, etc.

Packaging/cosmetics: Dispensing pumps, plastic bottles, cartridges, etc.
Household appliances: Water distributors, water pumps, gas valves/fittings, stoves, compressors, etc.
General industry: Cylinders, safety valves, non-return valves, couplings, grippers, ball valves, seals, throttle pins, etc.

Detailed views

Control unit

Expansion and combination options
ZEDbox	1 external + 1 external	max. 2 channels
ZEDbase⁺	1 internal + 1 external	max. 2 channels
ZEDmod	internal external	max. 8 channels
ZEDflex	internal external	max. 8 channels

Interfaces

Auxiliary
Temperature sensor
Interface to the control unit

Dimensions (H x W x D): 139 x 235 x 315 mm
Weight: approx. 8 – 10 kg
Power supply: 24 VDC (+10 / -5%) 5 A
Test medium: Compressed air (oil and water-free according to ISO 8573-1 class 3)

Technical data:	Relative pressure	Differential pressure	Accumulation pressure	Mass flow	Flow rate
Test pressure range	Vacuum – 232 psi/16 bar		0 – 6 bar	Vacuum – 116 psi/6 bar
Test pressure accuracy	1% of the end value		1% of the end value	1% of the end value
Measuring range	As with test pressure range	– 1.45 – 1.45 psi – 100 – 100 mbar	10,000 – 450,000 ccm/min \| ml/min	-50 – 50 or -250 – 250 ccm/min \| ml/min	up to 250,000 ccm/min \| ml/min
Measurement resolution	0.5 ppm of the end value
Smallest measurable pressure change (type-specific)	0.5 Pa (14.50 psi / 1 bar) – 4 Pa (232 psi / 16 bar)	0.1 Pa	0.1 Pa (50 mbar) – 1.5 Pa (6 bar)
Measuring accuracy (leak rate)	Depending on the test setup		Depending on the test setup	Typically 5% of the measured value, no smaller than 0.5% of the end value
Repeatability	Depending on the test setup		Depending on the test setup	0.5% of the measured value, no smaller than 0.05% of the end value (depending on the test setup)

Further accuracies, test pressures, control options, customer-specific protocols for higher-level data acquisition and evaluation systems on request

Data sheet ZEDcore

Download (PDF)

The advantages at a glance:

No programming knowledge is required because the measuring module can be used in plug-and-play mode.
Various measuring methods are possible: Relative pressure, relative pressure with bell testing, relative pressure with flow, differential pressure, mass flow, and accumulation pressure.
Machine downtimes are reduced because there is no need to install leak testing devices.
Fewer spare parts need to be stored because the measuring circuits can be easily replaced.
Calibration saves time and money since only the measuring module needs to be sent in.
The follow-up costs are lower because there is no longer any need for stand-by devices.