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Home » Products » Diesel Engine Analyser » Diesel Engine Analyser Doctor DK-20

Diesel Engine Analyser Doctor DK-20

Diesel Engine Analyser Doctor DK-20
Diesel Engine Analyser Doctor DK-20
Product Code : DK-20
Product Description

Diesel Engine Condition & Performance Monitoring (Diesel Doctor)

FEATURES

·      All New Compact Instrument

·      Proven Reliability and Accuracy

·      Cylinder Pressure Only & Cylinder

·      with Fuel Pressure Versions

·      Easy-to-use Full Colour Touchscreen

·      Choice of Inductive or Optical Crank Synchronisation

·      Easy Carrying in Compact Shoulder Bag

·      Designed to Meet the Requirements of Real Marine Users

Technical Specifications

PRESSSURE MEASUREMENTS

No of Channels

single channel (DK-20)

two channel simultaneous (DK-20 F/V)

ICP Interfaces

2.4mA at 24Vdc nominal

Input Voltage Range

+/-5V

Connector Type

TNC

Bias Voltage Check

25Vdc range for ICP bias voltage

Amplitude Accuracy

±1% typical

CRANK INPUTS

No of Channels

2

Mode

TDC ONLY or DUAL (with Auto-Select)

Connector Type

6-way milspec

Crank Sensor Types

inductive or optical

Crank Sensor Supply Voltage

24Vdc nominal

RECOMMENDED CYLINDER PRESSURE SENSOR (KPS-1)

Type

Kistler 7613C, piezoelectric

Nominal Sensitivity

20mV/bar nominal (calibration certificate supplied)

Indicator Cock Adapter

Thompson Adapter with tube spanner for disassembly

Operating Temperature

350ºC at sensor head

Cable

high temperature cable supplied with sensor, length 1m

RECOMMENDED FUEL PRESSURE SENSOR (KFS-1)

Type

Kistler 6729A, piezoelectric

Nominal Sensitivity

2.5mV/bar nominal (calibration certificate supplied)

Mechanical Fitting

1/2” BSP male adapter (fitted to sensor) to fit standard fuel isolation valves

Operating Temperature

200ºC at sensor head

Cable

high temperature cable supplied with sensor, length 1m

DISPLAY

Type

640 x 480 full colour VGA

Integrated

integrated touchscreen (capacitive)

Measurement Start

sealed GO button or screen touch

PERFORMANCE

Engine Speed Range

20 RPM - 3000 RPM

Resolution

0.1º up to 1820 RPM

0.2º, 1820 RPM to 3000 RPM

Max Sampling Rate

102.4kHz

Measurement Storage

over 200,000 traces

COMMUNICATIONS

Communications Port

USB 2.0

Connector Type

mini-B, sealed

MECHANICAL

Case

high impact HPX plastic (yellow), press & pull latches, softgrip handle

Dimensions

30cm x 25cm x 12cm (meets airline carry-on regulations)

Weight

2.6kg

ENVIRONMENTAL

Operating Temperature

-10ºC to +55ºC

Sealing

IP66 (IP67 with lid closed)

Compliance

CE, RoHS

POWER

Power Source

internal rechargeable Li-ion battery

Battery Charger (supplied)

9Vdc output rated at 3A

 

mains input voltage 100-240Vac, 50-60Hz

 

(unit can also be trickle-charged via the USB port)


The Doctor instrument is available in two versions, namely the single‐channel DK‐20 for cylinder pressure

only measurements, and the two‐channel DK‐20/FV which incorporates a second channel for simultaneous

fuel or vibration measurement. Fuel injection sensing can detect issues with injectors while vibration sensing

with an accelerometer can detect valve timing within the cylinder.


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