Ametek DR22X0 Series User manual

[phone] Outside North America
[phone] US a d Ca ada
http://www.drexelbrook.com
e-mail:[email protected]
Leader in
Level Measurement
For Assistance Call 1-800-553-9092
Outside North America 1-215-674-1234
Installation and
Operating Instructions
Series DR22X0
Radar Level Instrument
for
Two-Wire Control Systems

AMETEK Drexelbrook makes no warranty of any kind with regard to the material contained
in this manual, including, but not limited to, implied warranties or fitness for a particular
purpose. Drexelbrook shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the performance or use of material.
Copyright 2001 AMETEK Drexelbrook
The DR2200 level gauge is designed solely for measuring the distance, level, volume and
reflection of liquids, solids and particulate materials. The DR2200 level gauge does not
form part of an overfill protection system. Special codes and regulations apply to its use in
hazardous areas. Responsibility as to suitability and intended use of these level gauges
rests solely with the user. Improper installation and operation of our level gauges may lead
to loss of warranty.

EDO 10-01-249
DR22X0-LM
US Sales 800-553-9092
24 Hour Service 800-527-6297
International 215-674-1234
Fax [phone]
E-mail [e-mail]
Web www.drexelbrook.com
An ISO 9001 Certified Company
205 Keith Valley Road Horsham, PA 19044
Series DR22X0
Radar Level Instrument
for
Two-Wire Control Systems

EDO # 10-01-249
DR22X0-LM
Table of Contents
SECTION 1 Handling and Storage ..................................................................................... 1
SECTION 2 Installation ....................................................................................................... 1
2.1 Field Assembly .......................................................................................................... 1
2.2 Mechanical Installation .............................................................................................. 3
SECTION 3 Electrical Connection ...................................................................................... 4
SECTION 4 Setting the Parameters ................................................................................... 5
SECTION 5 Maintenance, error handling ........................................................................ 15
SECTION 6 Safety Information ......................................................................................... 17
SECTION 7 Specifications ............................................................................................... 18
SECTION 8 DR22X0 Level Radar Type Code ................................................................. 20
SECTION 9 Parameter Checklist ..................................................................................... 22

DR22X0 Radar Level Instrument
1
Items included with supply
The scope of supply includes, in the version as ordered:
· Signal converter bolted to waveguide window and antenna; optionally: antenna
extension, high temperature distance extension.
· Installation and operating instructions plus PC CAT Lite configuration software.
· Report on factory settings for the signal converter
· Certification and approval documents, unless reproduced in the device documentation
Installation material (stud bolts, flange gasket and cabling) not supplied, to be provided by
customer!
1 Handling and storage
Safety advice
Depending on the version, the device weighs between 10 lbs and 70 lbs. Use both hands
to lift the device carefully by the converter housing. If necessary, use lifting gear. When
handling the DR22X0 instrument, avoid hard blows, jolts, impact, etc. When storing the
“Wave-Stick” version, make sure that the device is not placed on its side on the antenna, as
this may cause the rod to bend.
2 Installation
Most of the DR22X0 versions are supplied in fully assembled condition. However, if a de-
vice should be delivered in parts, or parts are subsequently replaced, use the following
assembly information.
2.1 Field assembly
1. For any necessary field assembly of the DR22X0 instrument,
all parts are included with the supply.
2. Bolt the waveguide window (flange mount) or distance
piece, if supplied separately from the DR22X0 instrument.
3. Torque for the sets of 4 Allen screws M (key size 5 mm):
maximum 5.8 foot pounds.
Note: Ensure the upper Teflon plug is kept absolutely dry and
clean! Moisture and dirt will impair functionability!
4. Bolt antenna extension to the antenna;torque for the 3 stud
bolts A: maximum 5.8 foot pounds. Do not detach bolts H !
Flange
Stick plating
(for Hastelloy,
Stick
Gasket Gasket
Horn
antenna
Separation
(Metaglass)
Wave-Stick Wave-Stick
(PP or PTFE)
Flange system 96
with horn antenna
LP flange system
max. 2 bar
max. 2 bar
distance piece
(optional)
High temperature
plate Horn
antenna
Flange
Ti, Ta)
PTFE w/o plate
with horn antenna
DR22X0
converter
distance piece (for
high-temperature version
up to 250˚C (482 ˚F)
upper Teflon plug
O-ring
lower Teflon plug
O-ring
connecting flange
antenna extension
antenna
M
H
M
A
signal converter

DR22X0 Radar Level Instrument
2
2.2 Mechanical installation
Safety:
• Check material compatibility of antenna, extension, flange, gaskets, and PP or PTFE
(used in all versions) with the product! See also section 8 “Type code”!
Mounting on the tank nozzle
a) Devices with horn antenna:
The antenna should project out of the nozzle. If necessary, use an antenna extension.
Exception: in case of a symmetrical tank fitting.
b) Wave-Stick
Tank nozzle Tank nozzle
Antenna
extension
Tank nozzle
1.0 (0.25)
>10.6 (>270)

DR22X0 Radar Level Instrument
3
2.2 Mechanical installation
c) Purging device
Remove screw plug ¼” R and screw in
screwed tube joint.
Consult “Ex“ specifications relating to the
purging circuit (provided by customer)!
Installation on the tank
• Do not forget the gasket when
positioning the DR22X0 on the tank
nozzle flange. Align DR22X0 and gasket,
slightly tighten nuts on stud bolts (by
hand).
• Tighten down stud bolt nuts firmly. The
tightening torque is dependent upon
the strength properties of the stud
bolts and the pressure rating of the
tank
Positioning on the tank
D
>1/7×H,
but max. 1/3×D H
Recommended distance Do not position in Do not position
from the tank wall tank centerline above internals
(multiple reflections!) (interference reflections!)
A Stilling well or Wave-Guide may be mounted on any position on the tank.
B = DR22X0 flange
F = tank flange

DR22X0 Radar Level Instrument
4
WARNING!
When using the PTFE Wave-Stick in hazardous areas of Zone 0, any electrostatic charging
of the stick, e.g. by flow of product, must be avoided!
3 Electrical connection
To open the signal converter, please use a screwdriver and release the four visible screws
on top of the blue housing.
Terminal assignment
DR22X0:
Rated temperature of connecting cables: see Section 6.
Supply voltage at the terminals (1,2)
The 4-20 mA supply must be able to provide the following voltage U at the terminals of the
DR22X0 – dependent on the current I. Please consider also the line resistance and pos-
sible loads on the secondary side of the supply unit.
The allowed upper limit R for load+line resistance is depending on the specification of the
supply unit:
U @20mA (supply unit) 14 V 15 V 16 V 17 V 18 V
Max. resistance R 50 Ω100 Ω150 Ω200 Ω250 Ω
Screwed Cable Gland
Intrinsically Safe Supply
U=17 to 30 Vdc
Any polarity possible
4mA 8 mA 12mA 16mA 20mA
17V
13V
14V
15V
16V
U
3.6 mA 22 mA I

DR22X0 Radar Level Instrument
5
4 Setting the Parameters
Setting parameters via program PC-CAT
With the program PC-CAT, version 3.01 or higher, you can configure the DR22X0
instrument from a PC. Connect the non-intrinsically safe side of the isolation
amplifier over a load between 120 Ω and 350 Ω to the Smart adapter and connect it with a
serial port of the PC.
The isolation amplifier must be HART® compatible.
Local display (optional)
Adapter
≥ 120 Ω
RS232
isolation
amplifier
DR22X0
9.500
Full. m
m
_____
44
3
2
1
(1) Numeric display, measured values
(2) Alphanumeric display, function/unit
(3) 6 Markers to display measurement
status
(4) 4 keys for configuration and error
interrogation

DR22X0 Radar Level Instrument
6
Function of keys (with local display)
The DR22X0 instrument can be configured with theocal display unit after opening the
housing, or by the PCprogram PC-CAT.
→(cursor key) - selects the configuration menu,
- branches the menu to the next lower level,
- shifts the cursor* to the next column on the right.
↑resp. ↓(select key) - branches the menu to the next digit on the same
level,
- changes the content (digit, text character) at the
cursor* position.
↵(ENTER key) - branches the menu to the next higher level,
- stores newly entered parameters,
- executes displayed functions,
- selects special functions (e.g. error memory).
*The cursor position is signalled by flashing of the character at the appropriate place.
Meaning of status markers (only for version with local display)
The 6 markers ? x below the local display only show information about the status of
measurement and are no error displays!
? 1: No current measured value: The device is searching for a new value. If the
search for a plausible level fails for a certain time, “SIGNAL DOWN” appears as
error display.
? 2: Signal too strong: Mean of reflected microwaves is very high. Gain is automatically
stepped down.
? 3: Poor spectrum: Brief showing of this marker has no significance. If permanently
on, this may result in uncertain (incorrect) measured values or the error message
“NO M.VALUE”.
? 4: No measured value as yet: Valid measured values not available after the
device has been started up. Measured value automatically set to the level of the
tank bottom. This marker disappears when the first valid measured value is
obtained.
? 5: Tank bottom: In tanks with dished bottom, for example, the measuring signal can
“disappear” if measurements are carried out near the bottom. The measured value
is then automatically set to the level of the tank bottom.
? 6: Measurement frozen: Device is in the block distance detection.

DR22X0 Radar Level Instrument
7
Scaling the current output
1) Drain the tank completely to the 0% marking (= 4 mA)1.
2) Press the lower keys (↵ and ↓ ) down, until the
asterisks on the display “TANKHEIGHT|********” are
replaced by the actual measured distance value2.
3) Then release and press ↵. In the lower line: “SURE
NO?” is displayed.
4) If this value is not plausible or the tank is not empty,
abort by ↵. Or accept the value by pressing . (“SURE
YES?”) and then ↵.
5) Now the tank height is set.
6) In the next step you can also enter this value as 4 mA
scaling (0%). Press ↵. In the lower line now: “SURE NO?”
is displayed again.
7) If this value shall not be stored, abort by ↵. Or accept
this 4mA scaling by pressing . (“SURE YES?”) and then ↵.
8) Fill the tank to the 100% mark. Use the same procedure
for the 100% point = 20 mA only now by pressing the top
keys → and ↓.
9) First the measured distance can be taken as block
distance. After this you can enter or adjust the 20 mA point
(100%) according to the actual level.
1This example was written for the case: current output = level (default). For distance measurement the
points 0% (short distance = high level) and 100% (large distance = low level) are exchanged.
2If no reliable measurement is possible “NO ACCESS“ is displayed. Abort by pressing ↵.
0%
TANKHEIGHT
1234 mm
↵
TANKHEIGHT
1234 mm
SURE YES? 1.
2.
100%
BLOCKDIST.
567 mm
↵
TANKHEIGHT
1234 mm
SURE NO?
SCALE 4mA
0 mm
SURE NO?
SCALE 4MA
0 mm
SURE YES? 1.
2.
SCALE 4mA
0 mm
↵

DR22X0 Radar Level Instrument
8
Description of functions
The tables on the following pages provide an overview of the parameters that can be set in
the configuration menu. This is followed by more precise explanations of some functions
and a typical configuration.
Configuration menu (version 7.00)
Function ( Fct.) Input range Description
1.0 OPERATION
1.1 DISPLAY
1.1.1 FCT.DISP identical with 3.2.1
1.1.2 UNIT.LENGTH identical with 3.2.2
1.1.3 UNIT.CONV. identical with 3.2.3
2.0 TEST
2.1 HARDWARE
2.1.1 MASTER Master hardware test.
2.1.2 DISPLAY Display hardware test.
2.1.3 STATUS Status information for Service
2.2 CUR.OUTP.I
2.2.1 VALUE I Value display Display of actual value of the
current output.
2.2.2 TEST I Select 3.6 mA/4 mA/6 mA/...
... 20 mA/22 mA
Output of selected value to
the current output. With
safety query.
2.4 FIRMWARE
2.4.1 MASTER Display Display of master firmware
version.
3.0 INSTALL.
3.1 BASIS.PARAM
3.1.1 TANKHEIGHT Select unit m/cm/mm/
inch/Ft
Enter
0.50 ... 20.00 [m]
Enter tank height (see
explanatory notes).
The unit entered here is also
used for all other length
entries.
3.1.2 BLOCKDIST Enter
0.10 [m] ... tank height
Enter block distance = non-
measurable range below
bottom edge of flange (see
explanatory notes).
3.1.3 ANTENNA Select STANDARD
WAVE-STICK
Select antenna type. WAVE-
STICK for all Wave-Stick
versions, except type "SW"
for stillwells.
All other = STANDARD.
3.1.4 ANT.EXTENS. Enter 0.00 [m] ... tank height Enter length of antenna
extension (not for Wave-
Stick: set to= 0)
3.1.5 DIST.PIECE Enter 0 ... 2000 [mm] Enter length of distance
piece above flange (high
temp. version = 120 mm).
3.1.6 STILLWELL Select NO / YES
If Yes: enter 25... 200 [mm]
Selection: without or with
still well.
With still well: enter inside
diameter in [mm]

DR22X0 Radar Level Instrument
9
Function (Fct.) Input range Description
(compensates different
wave speeds in still wells)
3.1.7 REF.OFFSET Enter -10.00...0...+10.00 [m] Reference offset is added
to measured distance
values.
3.1.8 TB.OFFSET Enter-100.00...0...+100.00 [m] Tank bottom offset is added
to measured level values.
3.2 DISPLAY
3.2.1 FCT.DISP Select LEVEL
DISTANCE
CONVERSION
Select function of display
(value to be displayed).
See also explanatory notes.
3.2.2 UNIT.LENGTH Select m/cm/mm/
inch/Ft/
PERCENT/BARGRAPH
Select unit for length value
to be displayed (only for
level and distance).
3.2.3 UNIT.CONV. Select m3/l(Liter)/US Gal/
GB Gal/Ft3/bbl/PERCENT/
BARGRAPH/USER UNIT
Select unit for conversion
value to be displayed
(“volume table“).
(see explanatory notes)
3.2.4 USER UNIT Text entry
10 characters
Enter user-defined unit for
the conversion table.
3.2.5 ERROR MSG. Select NO/YES Select whether error
messages to be shown in
display.
3.3 SIGNAL OUT
3.3.1 FUNCTION I Select OFF/LEVEL/DISTANCE/
CONVERSION/SW.OUTP.
Select function of the
current output.
3.3.2 RANGE I Select 4-20mA
4-20mA/E3.6
4-20mA/E22
Select range/error status
for the current output (hold
last value or 3.6 mA/22mA
in error status)
3.3.3 SCALE 4mA Enter -200.00 ... +200.00 [m]
0.00 ... 99999.99 [m3]
Enter lower measuring
range value for the current
output (4 mA).
(see explanatory notes)
3.3.4 SCALE 20mA Enter -200.00 ... +200.00 [m]
0.00 ... 99999.99 [m3]
Enter full-scale range value
for the current output (20
mA).
(see explanatory notes)
3.3.5 BAUDRATE Select 1200 Bd Baud rate for HART®
communication (do not
change!).
3.3.6 ADDRESS Enter 0 ... 255 Enter device address.
(for HART® multidrop)
3.3.7 PROTOCOL Select
HART
Select communications
protocol
3.4 USER DATA
3.4.1 LANGUAGE Select GB-USA/D/F/I/E/P/S Select language for the
optional display.
3.4.2 ENTRY CODE 1 Select NO/YES Switch the access lockout
on/off.
Configuration menu (version 7.00) (cont.)

DR22X0 Radar Level Instrument
10
Function (Fct.) Input range Description
If YES, for every access a 9-
digit entry code on the 4
keys is necessary.
3.4.3 CODE 1 Enter code (RRREEEUUU ) Enter the entry code for
access lockout.
3.4.4 LOCATION Enter text (8 characters) Enter a device identifier.
3.5 APPLICAT.
3.5.1 AUTO TANKH. Special function Automatic determination of
tank height
(see explanatory notes).
3.5.2 EMPTY.SPEC. Select OFF/ON/
RECORD
Recording the profile of the
empty tank (empty-tank
spectrum) (see explanatory
notes).
3.5.3 TIMECONST. Value 1...10...100 [s] Enter time constant for
measured-value filtering
3.5.4 TRACING.VEL. Value
0.01...0.50...10.00 [m/Min]
Enter the maximum rate of
change in level that can
occur in operation.
3.5.5 MULT.REFL. Select NO/YES Switch the multi-reflection
identifier on/off.
3.5.6 BD-DETECT. Select NO/YES Switch the block distance
(overfill) identifier on/off
(see explanatory notes).
3.5.7 FUNCT. FTB Select OFF/
PARTIAL
Select function of tank
bottom tracing system (see
explanatory notes).
3.5.8 EPSILON R Enter
1.1000 ... 8.0000
Enter relative permittivity of
product (only for Fct. 3.5.7)
3.5.9 TANKTYPE Select STORAGE T. /
PROC TANK
Select tank type.
STORAGE T. = smooth
product surface
PROC TANK = slightly
disturbed product surface
Configuration menu (version 7.00) (cont.)

DR22X0 Radar Level Instrument
11
Explanatory notes
Tank height
The tank height (Fct. 3.1.1) for the DR22X0 is defined as the distance between the top
edge of the tank connecting flange and the bottom reference point. The bottom reference
point is that “point“ in the tank on which the microwaves of the DR22X0 hit and from which
they are reflected. This may be the tank bottom (symmetrical tank with flat bottom) or the
non-horizontal part of the bottom (e.g. tank with dished bottom) or an additionally fitted
plate. The DR22X0 cannot measure below this point (“sump“ in the tank).
Note: When the tank is completely empty and the tank bottom provides good reflections
(flat, not dished bottom), the tank height can also be automatically determined with the
aid of Function Fct. 3.5.1 AUTO TANKH. Before confirming, check carefully that the
proposed tank height is within range.
Block distance
The block distance function (Fct. 3.1.2) defines a zone below the top reference point in
which measurements are not applicable. The value should be at least 4 to 8 inches greater
than the length of antenna plus antenna extension, or at least 8 inches in the case of the
Wave-Stick.
Signals within the block distance are suppressed; a rise in the tank filling above this limit
(response threshold) will lead to a measuring result corresponding to a distance = block
distance, when Fct. 3.5.6 BD-DETECT. is switched on.
Scaling of the current output
The scaling of the current output (Fct. 3.3.3: level 1 = 4 mA ; Fct. 3.3.4: level 2 = 20 mA)
should be within the measuring range (between bottom reference point and
response threshold).
By pressing the two upper keys (→ and ↓.) or the two lower keys (↵ and ↓) at the same
time, the 0% setting (= 4 mA) or 100% setting (= 20 mA) can be programmed according to
the actual level.

DR22X0 Radar Level Instrument
12
Explanatory notes (cont.)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Sump
non
measurable
zone
(Fct. 3.1.1)
Fct. 3.1.4
upper reference point
(top edge of tank connecting flange)
block distance
response
current output
20
mA
max
(Fct. 3.3.4)
4min
(Fct. 3.3.3)
lower reference point
(tank bottom)
Fct. 3.1.5
threshold
measuring
mA
[e.g.: 5.30 m]
[e.g.: 0]
[e.g.: 0]
[e.g.: 0.6 m]
[e.g.: 0.4 m]
[e.g.: 4.0 m]
range
(Fct. 3.1.2)
Empty-tank spectrum
To enable the DR22X0 instrument to identify and blank out interference signals, e.g. caused
by fixed and moving tank internals, the tank profile (empty-tank spectrum) needs to be
recorded once only prior to (initial) start-up. For recording, the tank should be completely
empty and all moving parts (e.g. agitators) switched on. If major interference through
internals is not expected, recording of the empty-tank spectrum is not necessary, since the
factory has already carried out and stored a partial empty spectrum of the flange system.
Empty-tank spectrum recording via display
After selecting menu item Fct. 3.5.2, press key →. The display then shows whether the
empty spectrum is currently ON or OFF. Then press the ↵ key if no change is to be made,
or
use the ↑ key to choose between the following options:
• ON: the empty-tank spectrum is (again) switched on and taken into account for
measurements.
• OFF: the empty-tank spectrum is not taken into account for measurements, but
remains stored in the DR22X0 and can be switched on again at a later date.
• RECORD: the existing empty-tank spectrum is to be deleted and a new one
recorded.

DR22X0 Radar Level Instrument
13
After selecting “RECORD”: if other parameters had previously been changed, the query
‘ACCEPT YES” is first made as to whether they are to be stored. In this case, confirm by
pressing ↵. To record, use the ↓ key to select one of the following options:
• MAX. VALUES: (only maximum values are taken into account when the empty-tank
spectrum is recorded; useful e.g. with “difficult“ agitators).
• AVERAGE: (values are averaged; this setting can be used for most applications).
After selecting with the ↓ key, press the ↵ key to select TOTAL or the ↓ key to select
PARTIAL.
• When TOTAL is selected, the empty-tank spectrum is recorded over the entire range
(tank height).
• If the tank has not been fully drained, the empty-tank spectrum can also be
recorded up to a certain distance, in which case the menu item PARTIAL should be
selected. When this has been selected, a query takes place by way of the ↵ key
concerning the distance value up to which the empty-tank spectrum is to be
recorded. The tank area below the current filling level is then excluded from the
empty-tank recording. It is recommended to maintain a safety distance of 8 to 12 inches
from the actual product distance.
Subsequently press key ↵ to start recording the empty-tank spectrum. The display starts
with “200“ and counts down to “0“. The sign WAIT... is shown in the display. READY
appears after approximately 1 to 3 minutes. Then press key ↵ five times to store the re-
corded empty-tank spectrum, which is taken into account for measurements.
Empty-tank spectrum recording via PC-CAT
Connect the DR22X0 and press in the display mode of PC-CAT the key combination
Ctrl-L. The type of empty-tank spectrum can be selected by one of the following keys:
1: Max.Values 4: Max. Partial A: Break
2: Average 5: Avg. Partial
Tank bottom tracing mode (FTB)
The DR22X0 includes an additional function for measuring reliably low levels in tanks with
flat bottom and poorly reflecting products (low dielectric constant). This tank bottom tracing
system (abbreviated FTB) is activated in the vicinity of the tank bottom (max. 20% level).
Given higher levels, the normal measuring method is used (reflection from the product
surface). If the measurement jumps to the correct level only after filling above a certain level
(approximately 0.3-1.0 m), you can activate the FTB function Fct. 3.5.7 “PARTIAL“. The
relative permittivity εr of the tank product must be set in Fct. 3.5.8. If it is not known, enter
the figure of 2.0. Since the exact position of the tank bottom must be known for this pro-
cess, it is advisable when using the FTB to determine the tank height automatically with an
empty tank, use Fct. 3.5.1.
Conversion table/Volume table
A table consisting of a maximum of 50 points can be stored in the DR22X0 for non-linear or
linear conversion of the level, e.g. into a volumetric value. This table, however, can only be
programmed with the PC-CAT program (Fct. 3.7.2).

DR22X0 Radar Level Instrument
14
Sequence for setting parameters (example) (for version with local display)
The following description refers to a storage tank with the parameter examples taken from
the illustration in this Section. If the device no longer contains the default parameters, the
keystroke combination for entering the numerical values may differ.
Activity Keys to be
actuated
Content of DR22X0
dis
p
la
y
after activit
y
Entry into configuration menu →Fct. 1.0
OPERATION
Setting the parameter: tank height ↑ ↑ → → Fct. 3.1.1
T
ANKHEIGH
T
Display of default value →10.000 m
Input of tank height "5.30 m" →↓ → 5x- →
3
x
-
05.300 m
Confirm tank height and move to block
distance
↵↑Fct. 3.1.2
BLOCKDIST
Display default value →0.5000 m
Enter block distance "0.60 m" → ↑ 0.6000 m
Confirm block distance and move to current
out
p
ut confi
g
uration
↵ ↵ ↑ ↑ Fct. 3.3
SIGNAL OU
T
Move to lower range value → ↑ ↑ Fct. 3.3.3
SCALE 4 mA
Display default value →+ 00.000 m
Enter lower range value (0.4 m = 4 mA) 3x →4x- + 00.400 m
Confirm lower range value and move to full-
scale ran
g
e valu
e
↵ ↑ Fct. 3.3.4
SCALE 20mA
Display of default value →010.00 m
Enter full-scale value (4.0 m = 20 mA) 2x→↓→4x↑004.00 m
Confirm full-scale value and move to empty
tank s
p
ectru
m
↵ ↵ ↑ ↑ → ↑ Fct. 3.5.2
EMPTY.SPEC.
Select: re-record empty spectrum → ↑ ↑ RECORD
Store changed parameters ↵ACCEPT. YES
Confirm and select: averaging ↵ ↑AVERAGE
Confirm and start recording; then wait for
a
pp
rox. 1-3 minutes!
↵ ↵ READY
Confirm and move to tank type ↵7x↑Fct. 3.5.9
T
ANK TYPE
Display of default value →PROC TANK
Select tank type "storage tank" ↑ ↑ STORAGE T.
Return to measurement function with
confirmation of changed parameters
5x↵PARAM.CHECK,
then START,
then meas.val. display

DR22X0 Radar Level Instrument
15
5 Maintenance, error handling
Replacement of the signal converter
Before replacing the signal converter, note the parameters of the DR22X0 and switch off
the power supply!
1. Disconnect all cables from the terminals in the terminal compartment.
2. Remove the 4 Allen screws M (Allen key size 5 mm) and lift off the signal converter.
The flange unit (incl. waveguide window) will remain tight even with pressurized tanks.
Caution
On pressurized tanks, do not remove the 4 screws H connecting the wave-guide window to
the DR22X0 flange! DANGER!
3. Fit the new DR22X0 converter.
4. Reconnect all cables in the terminal compartment, as described in Section 3.
5. Check against the enclosed report onsettings whether the factory-set parameters are
correct for your application. If not, reset.
6. Record the empty spectrum, see Section 4.
Important: Ensure that the screw threads on the terminal and electronic compartments are
well greased at all times.
Error display during measurement (only for versions with local display)
When function 3.2.5 “ERROR. MSG.” is set to YES, any error occurring during measure-
ment is indicated in the display and alternates with the measured value for as long as the
error is present.
In addition, all errors are stored. Press the keystroke combination ↵ . → → to get into
the error list. You can page through the list with key → , and acknowledge the errors at the
end - if required - by “QUIT YES”. Press key ↵ twice to return to the measuring mode.
Fatal errors (FATAL ERROR), that are detected when the device is started up, make
the DR22X0 instrument inoperable.
distance piece
(for high temperature
version up to 250˚C (482˚F)
O-ring
DR22X0
connecting flange
signal converter
M
H

DR22X0 Radar Level Instrument
16
Telephone Assistance
If you are have a question about your Drexelbrook equipment,
call your local Drexelbrook representative, or the factory toll
free 1-800-527-6297.
Please provide the following information when you call:
Instrument Model # __________________________________
P.O.#_______________________________________________
Date________________________________________________
Insertion Length_____________________________________
Application__________________________________________
Material being measured______________________________
Temperature________________________________________
Pressure___________________________________________
Agitation____________________________________________
Brief description of the problem _______________________
Checkout procedures that failed _______________________
Equipment Return
In many applications, sensing elements are exposed to hazard-
ous materials.
• OSHA mandates that our employees be informed and
protected from hazardous chemicals.
• Material Safety Data Sheets (MSDS) listing the
hazardous materials that the sensing element has
been exposed to must accompany any repair.
• It is your responsibility to fully disclose all chemicals
and decontaminate the sensing element.
To obtain a return authorization (RA#), contact the Service
department at 1-800-527-6297 (US and Canada) or
1-215-674-1234 (International). Please provide the
following information:
Model Number of Return Equipment ____________________
Serial Number _____________________________________
Original Purchase Order Number ______________________
Process Materials that equipment has been exposed
to _______________________________________________
MSDS sheets for any hazardous materials.
Billing Address _____________________________________
_________________________________________________
Shipping Address___________________________________
_________________________________________________
Purchase Order Number for Repairs ____________________
Ship equipment freight prepaid to:
AMETEK Drexelbrook
205 Keith Valley Road Horsham, PA 19044
COD shipments will not be accepted.
Please include a
purchase order even
if the repair is under
warranty. If repair is
covered under warranty,
you will not be charged.