The DHT 1 Series Digital Hydraulic Testers accurately measure flow, pressure and  temperature. The tester is designed to conveniently check the performance of hydraulic  pumps, motors, valves and hydrostatic transmissions. This easy to use diagnostic tester  has simplified controls and can pinpoint hydraulic system faults, reducing downtime and  helping in preventive maintenance.

The tester comprises a turbine flow block and a large easy to read digital display which  indicates both flow and temperature. The tester has a built-in loading valve to simulate  the working pressure during normal machine operation. The built-in safety discs protect  the machine and operator in event of excessive pressure, allowing oil to safely bypass the  loading valve INTERNALLY with no spillage of oil from the hydraulic circuit, eliminating clean-up costs and environmental hazards.

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
Accurately measures flow, pressure and temperature.
Flows up to 400 lpm (100 US gpm) Digital display.
Pressures up to 420 bar (6000 psi) Analogue 63mm Gauge.
Temperature up to 120°C (250°F) Digital display.
Digital display for flow / temp, analogue pressure.
Flow accuracy 1% of reading.
Secondary flow and tacho inputs.
Bi-directional loading valve with INTERPASS™ burst disc protection fitted as standard.

Calibration
All DHT 1 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).