Ott Hydromet KALESTO Water Level Sensor User Manual Anleitung RADAR D ENG

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Document ID	129250
Application ID	UinaPSIqhcndXFbOtwxUCg==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	10.45kB (130576 bits)
Date Submitted	2000-12-18 00:00:00
Date Available	2000-12-21 00:00:00
Creation Date	2000-11-07 13:12:10
Producing Software	Acrobat Distiller 4.0.2 for Macintosh
Document Lastmod	2000-11-07 13:16:09
Document Title	Anleitung RADAR D.ENG
Document Creator	QuarkXPressª: AdobePS 8.6 (219)
Document Author:	Armin Vogelmann

OTT 0051B
English
Operating Instructions
Radar Sensor
Kalesto
Connection diagram
Voltage supply
A separate voltage supply
is required for the radar sensor
if cables exceed a certain
length; see Technical Data
(use commercially-available
distributor socket)
Twisted pair cable
up to max. 1,000 m
OTT-LOG connection diagram
Kalesto input card
1 2 3 4 5 6
±5˚
RS 485 A
RS 485 B
n.c.
n.c.
n.c.
n.c.
Distance between radar/
sensor water surface
Safety distance between
buildings and centre axis
5m
10 m
20 m
30 m
0.5 m
1m
2m
3m
Adjust the positioning mechanism
so that the radar sensor is aligned
at right angles to the water surface.
(Check with a spirit-level.)
Opening the connection section on the
Kalesto radar sensor (captive screws).
Connecting the twisted pair
cable to the radar sensor.
RS 485 A
RS 485 B
Ground
+12 V DC
Setting the OTT-LOG operating matrix for a Kalesto
radar sensor
Field 15 Enter scaling + point position; create relation to reference point
15±
SCALING
100%
0.00
0%
30.00
POINT POS xxx.xx
100% + 0% = Adjusts the OTT-LOG to the Kalesto radar sensor measurement range.
POINT POS = Sets the decimal point position within the measured value
The Kalesto radar sensor measures the distance from the bottom of its housing* to
the water surface: the maximum measured value is 30.00 m. The measurement
result for distance or level measurement is scaled by entering a value in the 0 %
and 100 % boxes in field 15 of the OTT-LOG operating matrix.
* Please note that the measurement zero point is initially positioned some centimetres
inside the sensor housing. After scaling with relation to a reference point, you can
check the result of all subsequent measurements (housing bottom/water surface)
using an electric contact gauge, for example.
Scaling for water level measurements (with relation to reference point)
 Carry out measurement using the settings 100 % = 0.00; 0 % = 30.00
(result in matrix field 10).
 Determine the reference value using a staff gauge, for example.
 Calculate: Correction value = Displayed value – staff gauge value
 Enter scaling/comma position
→ New 100 % value = 0.00 – correction value
→ New 0 % value = 30.00 – correction value
Important: Do not forget the sign!
Example:
Display in field 10
Staff gauge reference value
Correction value
→ New 100 % value
→ New 0 % value
18.50
1.15
17.35
–17.35
12.65
Scaling for distance measurements (depth of water)
(radar sensor ↔ water surface with relation to a reference point)
 Perform measurement using the settings 100 % = 30.00; 0 % = 0.00
(result in matrix field 10).
 Determine the reference value using an electric contact gauge, for example.
 Calculate: Correction value = Displayed value – electric contact gauge value
 Enter scaling/comma position
→ New 100 % value = 30.00 – correction value
→ New 0 % value = 0.00 – correction value
Important: Do not forget the sign!
Enter scaling/decimal point position:
†
 ™® Select digit position; ∑« Select sign/digits
†
 ™® Select digit position; ∑« Select sign/digits
†
 ∑« Select decimal point position
Factory setting: 100% = 0.00;
0% = 30.00;
POINT POS = xxx.xx
– Possible decimal point positions: xxx.xx → Resolution 1 cm
xx.xxx → Resolution 1 mm *
xxx.xx → Resolution 0.01ft
– Do not forget the sign in all entries!
– The decimal point position also affects the matrix fields 10, 11, 14, 15,
16 and 18.
– For a resolution in 0.01 ft: Use 98.43 instead of 30.00 (30 m = 98.43 ft)
* For distance measurements: possible using OTT-LOG version V2.16 and later
versions (100 % value, 0 % value: max. ±29.999 m)
Operating mode „surface velocity“
This operating mode of the Kalesto is provided for the approach determination of the
surface velocity of a river.
Please note: The accuracy of measured values depends on the roughness of water
surface. Strong wind influences or very smooth water surfaces falsify measuring
results.
Special input card for OTT-LOG necessary: 55.505.138.3.2
Min. surface velocity vmin = 1 m/s
The actual velocity of the river is larger than the measured velocity of the KALESTO:
v = v Kalesto/ cos a
For this reason it is necessary to enter a correction value in the 100 % field of the
matrix. Through this the OTT-LOG calculates the resulting velocity automatically.
Scaling for surface velocity
 Determine the value for 100 % from the table.
 Enter 100 % and 0 % value; e. g. α = 45 °
→
100 % value = 42.43
→
0 % value = 0.00
The OTT-LOG displays the measured value in m/s.
Radar Sensor Kalesto: Operating
mode „surface velocity“
α
Flow direction
Angle
30
35
40
45
50
55
60
°
°
°
°
°
°
°
100 % value
hmin
hmax
(field 10)
approx.
approx.
34.64
36.62
39.16
42.43
46.67
52.30
60.00
1.00
1.10
1.25
1.40
1.50
1.60
1.70
10.5
12.0
13.5
15.0
16.0
17.0
18.0
(Point position: xxx.xx)
Technical data
Measurement range
Resolution
Maximum measurement error1)
1.5 … 30 m
1 mm
±1 cm + 1 digit
Operating voltage
Current consumption
– Active
– Standby mode
9 … 15 V DC
550 mA
< 1µA
Interface
Transmission speed
RS 485; max. 1,000 m twisted pair cable
9,600 bit/s
Microwave frequency
Transmission output
Radiation angle
24.125 GHz
5 mW
±5°
Length of measurement cycle
Measured value output
17 s
17 s after measured value request
When the device is combined with an
OTT-LOG data logger in the HYDROSENS
“MIDI” housing, operation and measured
value readings are performed using the
OTT-LOG operating matrix.
Degree of protection
Insertable cable
Filling
Authorisation number
Dimensions L x Diam.
Weight
Temperature range
IP 68
e. g. Li2YCYv (TP) 2 x 2 x 0.5 mm2
Nitrogen; 0.5 bar overpressure
D810117L
approx. 500 mm x 160 mm
approx. 8.0 kg
–40 to +85 °C
1)
under reference conditions
A separate voltage supply is required for the Kalesto radar sensor if
cables exceed a certain length (voltage reduction in twisted pair cable):
Wire cross-section
in mm2
0.5
1.0
1.5
Max. cable length for voltage supply
12 V
15 V
35 m
70 m
110 m
100 m
200 m
300 m
OTT MESSTECHNIK GmbH & Co. KG
P.O. Box 21 40 ⋅ D-87411 Kempten
Ludwigstrasse 16 ⋅ D-87437 Kempten
Phone ++49(0)8 31 56 17-0
Fax
++49(0)8 31 56 17-2 09
Document number
63.100.000.B.E 06-1100
E-mail: info@ott-hydrometry.de
Internet: http://www.ott-hydrometry.de

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Create Date                     : 2000:11:07 13:12:10
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Author                          : Armin Vogelmann
Creator                         : QuarkXPressª: AdobePS 8.6 (219)
Title                           : Anleitung RADAR D.ENG
Modify Date                     : 2000:11:07 13:16:09+01:00
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