864 Programmable Digital Altimeter *Please see 850 Precision Altimeter
*The 864 Programmable Digital Altimeter is no longer available - Please see the 850 Precision Altimeter
The Imagenex Model 864 is a completely self-contained altimeter with a digital input/output. This unit is compatible with the Model 881A switch data command and return data formats. This unit is mounted in a pressure proof housing with an underwater connector for use at depth. The 864 Altimeter measures the range to the bottom or other large objects. It requires only power and an RS-485 or RS-232 serial interface to an external device.
Underwater Hardware Specifications
Frequency
330 kHz
Transducer
Conical beam
Transducer Beam Width
10º
Transmit Pulse Length
100 microseconds
Range Resolution
20 mm
Min. Detectable Range
100 mm
Max. Operating Depth
1000 m
(3000 m & 6000 m available)
Max. Cable Length
1000 m on typical twisted shielded pair (RS-485)
Interface
RS-485 serial interface @ 115.2 kbps (or optional RS-232), 881A style protocol
Connector
Four conductor, wet mateable (Subconn MCBH4M-AS)
Power Supply
22 – 32 VDC at 100 mA max.
Dimensions
89 mm (3.5”) diameter x 125 mm (4.93”) length
Weight in Air
1000 m unit: 1.2 kg (2.6 lbs)
Weight in Water
TBA
Materials
6061-T6 Aluminum & PVC
Finish
Anodized
Software Specifications
Win881A.exe
v2.39
Windows™ Operating System
Windows™ XP, Vista, 7, 8, 10
Range Scales
1 m, 2 m, 3 m, 4 m, 5 m, 10 m, 20 m, 30 m, 40 m, 50 m
File Format
(filename).81a
Recommended Minimum Computer Requirements
100 MHz Pentium
64 MB RAM
1 GB Hard Disk
800 x 600 x 256 colour graphics
Ordering Information
1000 m Unit
864-000-200
3000 m Unit
864-000-201
6000 m Unit
864-000-202
RS-232
Option -006
