The Digital Hydraulic Multimeter Series accurately measure flow, pressure, peak pressure, temperature, power and volumetric efficiency and has a built-in loading valve to simulate the working pressure during normal machine operation.

The tester is ideal for reactive, proactive and preventive maintenance, designed to conveniently check the performance of hydraulic pumps, motors, valves and hydrostatic transmissions as well as for the setup of hydraulic attachments such as hammers and breakers.

DHMs are rugged, easy-to-use, bi-directional diagnostic testers. They comprise of a turbine flow block with loading valve, a large easy-to-read digital display which indicates flow, temperature and pressure.

The DHM series offers wireless data transfer capabilities, enabling efficient data management for enhanced decision-making.

All DHMs feature Webtec’s unique loading valve with built-in Interpass® safety protection, are sealed against dust and water splashes and come with a five-year warranty as standard.

Technical Information
Inlet/Outlet Ports: 1" BSPP
Calibrated Flow Range: 10-400L/Min
Rated Pressure Range: 0-420 Bar
Fluid Temperature Range: 0-120°C
Maximum Rated Pressure: Up to 480 bar, 7000 psi
Maximum Rated Flow: Up to 800 L/min, 210 US gpm
Ambient Temperature: 5 to 40°C, 41 to 104°F
Compatible Fluid: Mineral oils to ISO 11158. Other fluids consult sales office
Porting: BSPP, SAE
Material: Case: Powder coat painted Mild Steel, Flow Block: High tensile aluminium, Seal: FKM

Calibration
All DHM 4 series digital hydraulic testers are calibrated at a mean viscosity of 21cSt using ISO32 hydraulic mineral oil to ISO11158 category HM.
Calibration certificates are available on request - this is a chargeable option. Other  calibration on request - please consult the sales office.

Installation
It is recommended to connect the flow block with flexible hoses 1-2 metres (3-6ft) long. Inlet and outlet connections should always be of a similar bore size to that of the flow  block to prevent venturi or constriction effects.

Filtration
Must be better than DIN ISO4406: 21/19/16 or NAS 10 (typically achieved with 20-25u  filters).