SKIPPER DL21 dual and single axis speed log
Part Number: DL21
The SKIPPER DL21 is a dual axis Doppler speed log and a single axis Doppler speed log in one sensor unit. It is working on the doppler principle, providing longitudinal and transversal ship’s speed (STW and SOG) and distance relative to sea water. The SKIPPER DL21 gives accurate navigation parameters, measured
as they happen, and presented in a logical, user friendly way. The new DL21 speed log is designed for ships over 50.000 GT with simultaneous and independent measurement of speed through water and speed over ground. This is according to new IMO resolution MSC334(90).
Features
- IMO Wheelmarked with MED-B
- Water speed log dual axis (STW)
- Independent single axis Doppler speed log (STW)
- Ground speed in dual axis (SOG)
- Docking functionality as standard (Three axis in STW and SOG)
- Touch display
- Sea temperature readout from sensor
- LAN and NMEA0183 output
- User friendly programmable displays and integrated menus
- CCS available on request
| Speed log | DL21 |
| Number of axis | 2 and 3, with 1 axis in addition |
| Speed range longitudinal | +/- 50 knots |
| Speed range transversal | +/- 50 knots |
| Water track (from) | 2 meter |
| Temperature accuracy error | <1°C |
| Primary frequency | DL2: 270 SOG 850-920 STW primary 264 STW secondary / DL1: 700-730 kHz |
| Power supply | • AC:115-230 V 50/60 Hz • DC: 24 V |
| Power consumption | Max 30 W for complete speed log |
| Display | 9" Touch and dot LED display |
| Mounting dimensions display | • 124x124 mm. Bracket or panel mounting • 190x119x114 mm for touch display |
| Accuracy | 0.2 knots or 2% whichever is greater |
| Cable length for display | None |
| Weight | • 1 kgs for CD402CU-XX • 1,5 kgs for JB70D21-XX • 1.4 kgs for CU-M001-XX • 10 kgs for sensor with 40 m cable |
| Mounting options | • Steel Tank • Aluminium tank • 100 mm sea valve for single bottom • 100 mm sea valve for double bottom • Retrofit in ETNSLB used for DL850 540 kHz • Retrofit in sea valve for Sperry SRD 421/500 |
| Speed alarms | • High and low speed limits • Power failure • Sensor failure |
| Clock | DL2: internal or From NMEA DL1: From NMEA |
| Outputs | • 3 x LAN (IEC61162-450) • 8 x NMEA0183 (IEC61162-1) • 5 x Auxiliary (pulse, limit etc.) • 2 x Relay (alarm etc.) |
| Inputs | • 3 x LAN (IEC61162-450) • 3 x NMEA0183 (IEC61162-1) • 3 x Auxiliary (alarm and sync) |
| NMEA outputs | • Speed: VBW and VHW • Distance: VLW • Others: MTW (Temperature) |
| Classification | • IMO Wheelmarked • CCS on request • MED-B • MSC334(90) • IEC61023 • IEC60945 • IEC61162-1/2/450 • IEC62288 • Ready for IEC61924 |
| IP rating | • IP 22 control unit |
| Service | Available in most major harbours, world-wide through extensive dealer network |
SKIPPER CU-M001-SB touch display
Part Number: CU-M001-SB Touch
SKIPPER CD402CU-SC compact display for single axis STW
Part Number: CD402CU-SC
SKIPPER JB70D21-SA electronic unit
Part Number: JB70D21-SA
SKIPPER SB-100-SB 100 mm ball valve for single bottom
Part Number: SB-100-SB
SKIPPER DB-100-SB 100 mm ball valve for double bottom
Part Number: DB-100-SB
Documentation type
Date
Type
Name
Size
Download
29.06.26
Guide
Guide Speed Log Retrofit Setup and Options 144
308 KB
29.06.26
Guide
Guide Speed Log Setup and Options 144
521 KB
01.07.26
Manual
Manual DM-M006-2130 DL21 (10.11.2022)
2692 KB
01.07.26
Marketing material
Product brochure DL21
793 KB
20.08.26
Technical
Data bulletin_Configuration of the system with software and DL2 software upgrade
1062 KB
20.08.26
Technical
Data bulletin_DL1_DL2_DL21 Sensor oscilliator error
183 KB
20.08.26
Technical
Data bulletin_DL1_Reset_trip_total_viaDL2
320 KB
20.08.26
Technical
Data bulletin_DL2 and DL21 Speed Log System - Reset of Total Trip counter
641 KB
