Siemens Milltronics Pointek ULS200 Instruction manual

Ultrasonic switch
Quick Start Manual 03/2013
Pointek ULS200
Milltronics

IQ300IX.fm Page 5 Tuesday, October 2, 2001 1:43 PM

A5E32268616 Pointek ULS200 – QUICK START MANUAL Page EN-1
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Pointek ULS200 Quick Start Manual
This manual outlines the essential features and functions of Pointek ULS200. We strongly
advise you to acquire the detailed version of the manual so you can use your device to its
fullest potential. The complete manual can be downloaded from the product page of our web
site at: www.siemens.com/pointek. The printed manual is available from your local Siemens
representative.
MILLTRONICS is a registered trademark of Siemens Milltronics Process Instruments.
Safety Guidelines1
Warning notices must be observed to ensure personal safety as well as that of others, and to
protect the product and the connected equipment. These warning notices are accompanied by
a clarification of the level of caution to be observed.
Copyright Siemens AG 2013.
All Rights Reserved Disclaimer of Liability
We encourage users to purchase
authorized bound manuals, or to view
electronic versions as designed and
authored by Siemens Milltronics Process
Instruments. Siemens Milltronics
Process Instruments will not be
responsible for the contents of partial or
whole reproductions of either bound or
electronic versions.
While we have verified the contents of this manual
for agreement with the instrumentation described,
variations remain possible. Thus we cannot
guarantee full agreement. The contents of this
manual are regularly reviewed and corrections are
included in subsequent editions. We welcome all
suggestions for improvement.
Technical data subject to change.
Contact SMPI Technical Publications at the
following address:
Technical Publications
Siemens AG
Siemens Milltronics Process Instruments
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: [e-mail].
European Authorized Representative
Siemens AG
Industry Sector
76181 Karlsruhe
Deutschland
1. This warning symbol is used when there is no corresponding caution symbol on the product.
WARNING: relates to a caution symbol on the product, and means that failure to
observe the necessary precautions can result in death, serious injury, and/or
considerable material damage.
WARNING1: means that failure to observe the necessary precautions can result
in death, serious injury, and/or considerable material damage.
Note: means important information about the product or that part of the operating manual.

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Pointek ULS200
Pointek ULS200 is an ultrasonic based process level switch providing high or low switch action
on liquids or solids. The sensor is ETFE or PVDF, allowing it to be used in a wide variety of
industries. Pointek ULS200 is used to measure liquids, slurries, and fluid materials, as well as
chemicals and plugged chute detection.
Pointek ULS200 contains an ultrasonic transducer and temperature sensing element. The
transducer emits a series of ultrasonic pulses. Each pulse is reflected as an echo from the
material and sensed by the transducer. Pointek ULS200 processes the echo using Siemens’
proven Sonic Intelligence®techniques. Filtering is applied to help discriminate between the
true echo from the material and the false echoes from acoustical and electrical noises and
agitator blades in motion. The time for the pulse to travel to the material and back is
temperature compensated and then converted into distance for display and relay actuation.
The Pointek ULS200 is an excellent primary detection device, but should not be used as a
backup device. For backup devices use a contacting technology such as the Pointek CLS 200.
WARNING: Changes or modifications not expressly approved by Siemens
Milltronics could void the user’s authority to operate the equipment.
Notes:
• Pointek ULS200 is to be used only in the manner outlined in this manual, otherwise
protection provided by the equipment may be impaired.
• This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based
communications.

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Specifications
Environmental
• location: indoor/outdoor
• altitude: 2000 m max
• ambient temperature: - 40 to 60 °C (- 40 to 140 °F)
• * - 20 °C (-5 °F) if metal mounting
• relative humidity: suitable for outdoor (Type 6/NEMA 6/IP67 enclosure)
• installation category: II
• pollution degree: 4
Process Pressure
• 0.5 bar (7.25 psi) max.
Switching Range
• liquids: 0.25 to 5 m (0.8 to16.4 ft)
• solids: 0.25 to 3 m (0.8 to 9.8 ft)
Memory
• non-volatile EEPROM
Programming
•2keys
Temperature Compensation
• built-in to compensate over the operating range
Display
•LCD
• three 9 mm (0.35") digits for reading of distance between sensor face and material,
multi-segment graphic for operation status
AC Version DC Version
Power Power
• 100 to 230 V AC, + 15%, 50/60 Hz, 12 VA
(5W) max. 18 to 30 V DC, 3 W1
1. See
Power on page 8, for minimum supply voltage required with DC version.
Fuse Output
• Slow-Blow, 0.25 A, 250 V AC • repeatability: 0.25 % of full range
Output • resolution: 3 mm (0.1")
• repeatability: 0.25% of full range •relay
2: 2 Form C (SPDT)
contacts, rated max. 5 A
@ 30 V DC non-inductive;
min. 10 mA @ 5 V DC
• resolution: 3 mm (0.1") OR
•relay
2: 2 Form C (SPDT) contacts,
rated max. 5A @ 250 V AC
/ 30 V DC non-inductive;
min. 10 mA @ 5 V DC
2. See
Interface on page 7, for operation up to 48 V DC.
• transistor: 2 transistor
switches, rated 
100 mA maximum at
48 V DC

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Electronics/Enclosure
• termination: terminal block, 2.5 mm2(14 AWG) solid 1.5 mm2(16 AWG)
stranded, maximum
•material: plastic
OR
epoxy coated aluminum with gasket
• ingress protection: Type 6/NEMA 6/IP671
• cable inlet: 2 x ½" NPT or 2 x PG 13.5
Transducer
• material: ETFE or PVDF copolymer
• mounting: threaded: 2" NPT, 2" BSPT, or 2" G
optional flange adapter, to 3" ASME, DIN 65PN10, and JIS
10K3B
Approvals
See product nameplate.
Plastic enclosure:
•General CSA
US/C, FM, CE2, C-TICK
• Hazardous
Non-incendive (Canada) CSA Class I, II, Div. 2, Gr. A, B, C, D, F, G
Class III
Epoxy coated aluminum enclosure:
•General
CSAUS/C, FM, CE2, C-TICK
• Hazardous
Explosion Proof (Canada) CSA Class I, Div. 1, Gr. A, B, C, D
Class II, Gr. E, F, G
Class III
Explosion Proof (USA) FM Class I, Div. 1, Gr. A, B, C, D T4
Class I, Zone 1, IIC T4
Class II, III, Div. 1, Gr. E, F, G T4
Flame Proof (Europe) ATEX II 2G EEx dmb IIC T5 Gb
Flame Proof (Australia) ANZEx Ex ds IIC T5 IP65/IP67 Class I, Zone 1 
DIP A21 T5 IP65/IP67
Flame Proof (Brazil) INMETRO DNV 12.0074 X
Ex d mb IIC T5 Gb
IP65/IP67
-20 ºC ≤Ta≤+60 ºC
DNV #OCP 0017
ABNT NBR IEC 60079-0:2008,
ABNT NBR IEC 60079-1:2009 e
ABNT NBR IEC 60079-18:2010
1. Use only approved, suitable size hubs for watertight applications.
2. EMC performance available upon request.

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Installation
Mounting Location
Recommendations:
• Ambient temperature within -40 to +60 °C (-40 to +140 °F), -20 °C (-4 °F) if metal mounting.
• Easy access for viewing the display and programming via two push buttons.
• An environment suitable to the housing rating and materials of construction.
• Keep the sound path perpendicular to the material surface.
Precautions:
• Avoid proximity to high voltage or current wiring, high voltage or current contacts, and to
variable frequency motor speed controllers.
• Avoid interference to the sound path from obstructions or from the fill path.
Mounting Instructions
Pointek ULS200 is available in three thread types: 2" NPT, 2" BSPT, or 2" G.
Before inserting Pointek ULS200 into its mounting connection, ensure that the threads are of
the same type to avoid damaging them. Simply screw Pointek ULS200 into the process
connection, and hand tighten.
WARNINGS:
• Materials of construction are chosen based on their chemical compatibility (or
inertness) for general purposes. For exposure to specific environments, check with
chemical compatibility charts before installing.
• Explosion hazard. Substitution of components may impair suitability for Class I,
Division 2 applications.
• This product can only function properly and safely if it is correctly transported,
stored, installed, set up, operated, and maintained.
• The user is responsible for the selection of bolting and gasket materials which will
fall within the limits of the flange and its intended use, and which are suitable for
the service conditions.
Note: Installation shall only be performed by qualified personnel and in accordance with
local governing regulations.
Note: Ideally, mount Pointek ULS200 so that the face of the transducer is at least
250 mm (9.84") above the highest anticipated level.
seams
rungs
pipe
fill
The sound path should be:
• perpendicular to the
monitored surface
• clear of rough walls,
seams, rungs, or
other obstructions
• clear of the fill path

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Dimensions
Standard Sanitary
The Pointek ULS200 can be fitted with the optional
75 mm (3") flange adapter for mating to 3" ANSI,
DIN 65 PN10 and JIS 10K 3B flanges.
Notes:
• Dimensions are nominal and may vary with material types.
• Non-metallic enclosure does not provide grounding between connections.
• Use grounding type bushings and jumpers.
• For CSA/FM approved Hazardous Location Models, see Siemens drawing 0-
9440026Z-DI-A.
74 mm
(2.9")
180 mm
(7.1")
2" NPT
2" BSP
or PF2
conduit
connection
½" NPT or
PG13.5
lid
lid clip #8-32x3.8"
machine screw 57 mm (2.25")
120 mm
(4.7")
74 mm (2.9")
4" sanitary ferrule
119 mm (4.68")
97 mm (3.83")
178 mm
(7.0")
79 mm
(3.1")
ULS200
Mount the
Pointek ULS200
onto the top of
the tank’s
sanitary ferrule.
Secure mating by
surrounding the
joing with the
optional clamp.
Hand tighten the
adjusting nut. Do
not use a wrench.
optional
clamp
adjusting
nut
ferrule
tank

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Interface
AC DC - relay output DC - transistor output
WARNINGS:
The DC input terminals shall be supplied from a source providing electrical
isolation between the input and output, in order to meet the applicable safety
requirements of IEC 61010-1
All field wiring must have insulation suitable for rated voltages.
Notes:
• A circuit breaker or switch in the building installation, marked as the disconnect switch,
shall be in close proximity to the equipment and within easy reach of the operator.
• Relay contact terminals are for use with equipment having no accessible live parts and
wiring having insulation suitable for at least 250 V.
• This product is susceptible to electrostatic shock. Follow proper grounding procedures.
100
50
40
30
20
10
0.1 0.2 0.5 1 2 5 10
Relay output - DC contact voltage and current limits
max. 48 V DC
switched contact voltage (V DC)
relay contact current (A) 
(resistive load only)

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Wiring
Relay output Optional transistor output - DC version only
Power
AC version DC version
All relays shown are in their 
de-energized (unpowered state).
18 to 30 V
100 to 230 V AC supply 18 to 30 V DC supply
24
22
20
18
16
14
-40 -20 0 +20 +40 +60
Minimum supply voltage - DC relay version
relay contact current = 5A
minimum supply voltage (V DC)
ambient temperature (°C)
relay contact current < 1A

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Operation
Start Up
With the ULS200 correctly installed (or aimed at a wall 0.25 to 5 m away), apply power and
view the start up sequence. It will light all possible LED values, show product revision number,
product model number, and will enter run mode. Then, the display shows the measurement of
the distance from the transducer face to the material level in the units indicated.
Display / Operation Status
Operation Status - Run Mode
Quick Start
To set a basic high/low application where you can easily adjust the measured distance, use
the method below. The Pointek ULS200 relays are preset as: relay 1 = alarm 1, high alarm at
0.25 m; relay 2 = alarm 2, low alarm at 5.00 m.
To change the setpoints by reference method, set the material or target to the distance as
displayed. Press the ` 1 / ‘or ` 2 / ' key. The display shows the current setpoint function and
value. Press the alarm key a second time so the ULS200 changes the setpoint to the value
currently being measured. After viewing or changing the setpoint, the Pointek ULS200 reverts
to the run mode.
relay 1
1. Position the unit so that it reads 0.75 m.
2. Press 1 / 
3. Press 1 / 
4. Once installed, the unit will register a high alaram at 0.75 m from the sensor face. If
Loss of Echo appears, complete steps 1 to 3 again.
- echoes are valid and within range.
- echoes are lost due to poor conditions or out of range. This may be typical in
applications where there are deep vessels and the material level is normally out of
range. Refer to Troubleshooting.
- extended loss of echo period. Operation has gone into fail-safe. Refer to
Troubleshooting.
function display: high alarm current setpoint, 0.5 m
output 1
output 2
operation status
reading
units
key
key
program
mode adjustment
value
units

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relay 2
1. Position the unit so that it reads 3.50 m.
2. Press 2 / 
3. Press 2 / 
4. Once installed, the unit will register a low alarm at 3.50 m from the sensor face. If
Loss of Echo appears, complete steps 1 to 3 again.
Applications
Pointek ULS200 is designed for use as a process level switch. The local display is used only as
an aid during start up. The instrumentation interface is comprised solely of the two relay
outputs. Switching applications are based on the relay functions adjustment.
The outputs can be set to function in the desired mode.
* Factory setting
Alarm: the relay de-energizes to set the alarm ‘ON’
Control or Pump: the relay energizes to set the device ‘ON’
function display: pump up control
Notes:
• All level setpoints must be within the device’s range (3 m for solids, 5 m for liquids).
• Range applies to the device’s switching capability, not to the process range of the
material.
Application Function Relay 1 Relay 2
High / Low level switch *1 High Alarm Low Alarm
High level switch with two height alarms 2High Alarm High Alarm
Low level switch with two height alarms 3Low Alarm Low Alarm
High level switch with loss of echo alarm 4High Alarm LOE Alarm
Low level switch with loss of echo alarm 5Low Alarm LOE Alarm
Pump down control with low level alarm 6Pump Down Low Alarm
Pump down control with high level alarm 7Pump Down High Alarm
Pump up control with low level alarm 8Pump Up Low Alarm
Pump up control with high level alarm 9Pump Up High Alarm
Pump down control with loss of echo alarm 10 Pump Down LOE Alarm
Pump up control with loss of echo alarm 11 Pump Up LOE Alarm
Pump up control and Pump down control 12 Pump Down Pump Up
Dual pump down control 13 Pump Down Pump Down
Dual pump up control 14 Pump Up Pump Up

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High Level Alarm Switch
Application: an alarm output, high and/or high-high alarm, when the process material rises to a
high level.
Application Notes: It is common to apply the switch on vessels where the material is normally
below the unit's range. Under such a condition the Pointek ULS200 loses echo, and if
prolonged, defaults to fail-safe operation. As this would be a normal occurrence, it is not
advisable to select the fail-safe high option. If the high level switch is being applied to a vessel
within the 3 or 5 m range, a loss of echo and ensuing fail-safe condition would not be a
common occurrence and the fail-safe default could be used if requred.
High / Low Level Alarm Switch
Application: high and low level alarms.
Application Notes: If the material can fall below the unit's range, the Pointek ULS200 loses the
echo, and if prolonged, defaults to fail-safe operation. The fail-safe default should be set to suit
the application.
fail-safe = 1, 2, or 3 fail-safe = 2 or 3 Application Adjustments
alarm
function
2 - high / high-high
alarm
4- high / Loss of
Echo (LOE)
alarm
setpoint
set the high and /
or high– high
alarms to the
desired values
fail-safe
mode
1 - high, except if
the process range
is beyond the
ULS200 operating
range (3/5 m)
2 - low
3 - hold
fail-safe = 1, 2, or 3 fail-safe = 2 or 3 Application Adjustments
alarm
function
1 - high / low
alarm
alarm
setpoint
set the high
and/or low
alarms to the
desired values
fail-safe
mode
1 - high
2 - low
3 - hold
high-high,
(eg. 0.75 m)
high,
(eg. 1 m)
range limit
(eg. 5.5 m)
blanking
(eg. 0.5 m)
blanking
(eg. 0.5 m)
high-high,
(eg. 0.75 m)
high,
(eg. 1 m)
rangelimit
(eg. 5.5 m)
high,
(eg. 1 m)
low, 
(eg. 4.5 m)
range limit
(eg. 5.5 m)
blanking
(eg. 0.5 m)
high,
(eg. 1 m)
low, 
(eg. 4.5 m)
blanking
(eg. 0.5 m)
rangelimit
(eg. 5.5 m)

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Low Level Alarm Switch
This application uses the Pointek ULS200 to provide one or two low level alarms.
If the material can fall below the unit's range, the Pointek ULS200 loses the echo, 
and if prolonged, defaults to fail-safe operation. The fail-safe default should be set to 
suit the application.
Dual Pump Control
This application uses Pointek ULS200 to provide a control output when the process material
rises to a high level.
Typically, wet wells are used to temporarily hold storm and/or waste water. When the water
surface reaches a high level setpoint, the wet well is pumped down. The process material will
be pumped down by the deadband value to another setpoint where the control will turn off.
fail-safe = 1, 2, or 3 fail-safe = 2 or 3 Application Adjustments
alarm
function
3 - low / low-low
alarm
5 - low / LOE
alarm
alarm
setpoint
set the low and /
or low-low
alarms to the
desired values
fail-safe
mode
1 - high
2 - low
3 - hold
Relay function 13: Dual Pump
Down
Application Adjustments
relay function 6 - high control / low alarm
7 - high control / high alarm
10 - high control / LOE alarm
13 - high control / high control
relay setpoints set to desired values
deadband values referenced from relay setpoints
(distance from Pump Start
setpoint to Pump Stop setpoint)
low, 
(eg. 3.5 m)
low, low, 
(eg. 4.5 m)
blanking
(eg. 0.5 m)
range limit
(eg. 5.5 m)
low, low
(eg. 4.5 m) range limit
(eg. 5.5 m)
blanking
(eg. 0.5 m)
low, 
(eg. 3.5 m)
both pumps stop
4 m
relay 1
(eg. 1 m)
relay 2 
(eg. 0.75 m)
deadband 1
(eg. 3 m)
deadband 2
(eg. 3.25 m)
pump 2 start
pump 1 start
blanking
(eg. 0.5 m)

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Pump Control with Level Alarm
This application uses the Pointek ULS200 to provide pump control and one level alarm.
If the material reaches a control setpoint, the well is pumped down or up respectively. If the
material reaches an alarm setpoint, the alarm will sound until the material moves beyond the
deadband value.
Operating Adjustments
To adjust a value:
1. Press both operating buttons
2. Press 1 / 
Relay Function 8: Pump Up Control
with Low Alarm
Application Adjustments
relay function 6 - high control / low alarm
7 - high control / high alarm
8 - low control / low alarm
9 - low control / high alarm
10 - high control / LOE alarm
11 - low control / LOE alarm
alarm setpoint set the low alarm to the desired
values
To access the operating adjustments,
simultaneously press both keys repeatedly
until the desired adjustment is obtained. A
viewing period of the adjustment value is
initiated. During this time the value can be
changed by pressing either the `up' or
`down' key. After viewing or changing,
operation automatically reverts to the run
mode.
select adjustment (eg. relay 1) current value (eg. 0.5 m)
change value (eg. increase to 0.75 m) new value (eg. new setpoint 0.75 m) after 6 sec. delay, return to run mode
relay 1
(pump up)
(eg. 3 m) deadband1
(eg. 2 m)
deadband2
(eg. 1 m)
alarm off
blanking
(eg. 0.5 m)
relay 2
(lowalarm)
(eg. 3.5 m)
pump off
pump on
alarm on
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
m
ft
Deadband 2
Deadband 1
Delay
Relay 2
Relay 1
Relay function
Units
Fail-safe timer
Fail-safe
Speed of response
Range limit
Blanking
on setpoint

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Output Function
The alarms can be set to function in the desired mode.
* Factory setting
Function display:
Setpoints
Function Relay 1 Relay 2
1 * high alarm low alarm
2high alarm high alarm
3low alarm low alarm
4high alarm LOE alarm
5low alarm LOE alarm
6pump down low alarm
7pump down high alarm
8pump up low alarm
9pump up high alarm
10 pump down LOE alarm
11 pump up LOE alarm
12 pump down pump up
13 pump down pump down
14 pump up pump up
high alarm H 
high-high alarm HH 
low alarm L 
low-low alarm LL 
loss of echo alarm LOE 
pump up control PU
pump down control PD
The setpoints can be set where reference levels,
either from the material in the vessel or from a
target, cannot be provided. This method can also
be used to trim the output levels obtained by the
Reference Method (Quick Start).
The setpoints are referenced from the face of the
sensor. They should not be set at or above the
blanking value, or at or below the range limit.
Factory Setting: Relay 1 = 0.5 m (1.64 ft)
Relay 2 = 4.50 m (14.76 ft)
high-high
high
low
low-low
ULS200
setpoint blanking
range
limit

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Relay Delay
Relay Deadband (Reset)
Blanking
Adjust the time delay, in seconds, from when the material reaches the relay level and the relay is
actuated. If the material level withdraws from the setpoint level, the delay is reset to 0.
The set time delay applies to both relays and all functions except `Loss OF Echo'.
Factory setting: 0 seconds.
Deadband (hysteresis) prevents relay chatter due to material level fluctuations at the set point. These
fluctuations are often waves or turbulence on a fluid's surface caused by agitators in the tank.
Once a relay is tripped, the detection level must move beyond the deadband value before it is reset. The
direction in which the deadband is measured depends on the application of the relay. If the relay is for a
high state then the deadband is measured below the set point. If the relay is for a low state then the
deadband is measured above the set point. Refer to the diagram below.
Deadband 1 is used for Relay 1 and Deadband 2 is used for Relay 2. The deadband value is entered in
the units selected, and applies to both relays and all alarm or control functions except `Loss Of Echo'.
Factory setting: 0.05 m (0.16 ft)
Blanking is used to ignore the zone in front of the
transducer where false echoes are at a level that
interfere with the processing of the true echo. It is
measured outward from the sensor face.
The minimum recommended blanking value is 0.25 m
(0.82 ft) but can be increased in order to extend the
blanking.
Factory setting: 0.20 m (0.66 ft)
on setpoint
deadband
off
high/high-high alarm low/low-low alarm
deadband
off
on setpoint
ULS200
blanking

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Range Limit
Speed of Response
The speed of response adjustment allows the user to collectively set a number of 
operating parameters.
measurement is the limit to which the Pointek ULS200 is able to keep up with
response: rates of change.
If the Pointek ULS200 measurement cannot keep up with the
rate of level change, set the adjustment from 1to 2. 
If the Pointek ULS200 still cannot keep up with the rate of 
level change, set the adjustment option to 3. Avoid 
choosing an option that is too fast for your application.
agitator discriminates between agitator blades in motion 
discrimination: and the material (target) surface.
filter: discriminates between false echoes from acoustical 
and electrical noise and the material (target) surface.
fail-safe timer: establishes the `Waiting' period from the time a loss
of echo or operating fault condition starts until the
fail-safe default is effected.
* Factory setting
The range limit is the distance at which measurements are ignored. Generally this
refers to the bottom of the container being measured. If a measurement is
detected beyond the range limit it results in a Loss Of Echo (LOE) reading. The
result of this reading is determined by the Fail-Safe Mode, see page 17 for more
information.
Factory setting: 5.50 m (18.0 ft)
SP measurement response agitator
discrimination filter FLS timer
10.3 m / min (0.1 ft / min) on on 10 min
2* 1 m / min (3.3. ft / min) on on 10 min
35 m / min (16.4 ft / min) on on 3 min
4immediate off off 3 min
range
limit
range
limit
0 to 3 m vessels (solids)
0 to 5 m (liquids)
greater than 3 m vessels (solids)
greater than 5 m (liquids)

A5E32268616 Pointek ULS200 – QUICK START MANUAL Page EN-17
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Fail-Safe Mode
In the event that a loss of echo condition exceeds the fail-safe timer (speed of response
variable), ?appears in the display; and if a relay is assigned to LOE (alarm function
option), it is engaged. This function must be used with the Output Function on page 14.
* Factory setting
Fail-Safe Timer
The fail-safe timer allows the user to vary the waiting period from the time of a loss of
echo or operating fault condition begins, until the fail-safe default is effected. The waiting
period is adjustable from 1 to 15 minutes, in 1 minute increments.
Units
The units of the measurement reading can be selected as follows: 
1 = metres, m (Factory setting)
2 = feet, ft
The selected units are also applicable to the Blanking and Relay adjustments.
Troubleshooting
The echo is not reliable and Pointek ULS200 is waiting for a valid echo
before updating the measurement.
Maintenance
Pointek ULS200 requires no maintenance or cleaning.
Unit Repair and Excluded Liability
For detailed information, please see the inside back cover.
fail-safe mode function reading
high and high-high low and low-low
1high on off hold
2low off on hold
3* hold hold hold hold
Probable causes are: Remedy
material or object in contact with sensor face lower material level or raise Pointek ULS200
Pointek ULS200 is not perpendicular to the material
surface
check Pointek ULS200 mounting
if angle of repose is too steep, angle Pointek
ULS200 mounting
change in level too fast adjust speed of response
material out of range acceptable on some high level switch applications
foam on liquid surface mount Pointek ULS200 via stilling well or pipe
too much dust or interference from material filling relocate Pointek ULS200
high level of vibration in the mounting structure relocate Pointek ULS200 or limit vibration
material inside blanking zone or below range limit adjust blanking or range limit
Fail-safe default after prolonged Loss Of Echo.
Investigate the probable causes listed above.

Page EN-18 Pointek ULS200 – QUICK START MANUAL A5E32268616
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Instructions specific to hazardous area installations (Reference
European ATEX Directive 94/9/EC, Annex II, 1/0/6)
The following instructions apply to equipment covered by certificate number SIRA
00ATEX1205:
1. The equipment may be used with flammable gases and vapours with apparatus
group IIC and temperature class T5.
2. The equipment is certified for use in an ambient temperature range of -20 to +60 °C 
(-4 to +140 °F).
3. The equipment has not been assessed as a safety related device (as referred to by
Directive 94/9/EC Annex II, clause 1.5).
4. Installation and inspection of this equipment shall be carried out by suitably trained
personnel in accordance with the applicable code of practice (EN 60079-14 and EN
60079-17 in Europe).
5. Repair of this equipment shall be carried out by suitably trained personnel in
accordance with the applicable code of practice (e.g. EN 60079-19 within Europe).
6. Components to be incorporated into or used as replacements in the equipment shall
be fitted by suitably trained personnel in accordance with the manufacturer’s
documentation.
7. The certification of this equipment relies upon the following materials used in its
construction:
Aluminum alloy T356 T6 (main enclosure) and A356 T6 (lid)
GE Lexan 943A polycarbonate
Two-part epoxy encapsulant
Silicon based coating
Santoprene 111-55 gasket
Master Bond Polysulphide EP21LPT or Dow Corning 3-4207 encapsulant
(transducer)
ETFE (transducer)
Epoxy syntactic foam (transducer)
If the equipment is likely to come in contact with aggressive substances, then it is
the responsibility of the user to take suitable precautions that prevent it from being
adversely affected, thus ensuring that the type of protection is not compromised.
Aggressive substances: e.g. acidic liquids or gases that may attack metals, or
solvents that may affect polymeric materials
Suitable precautions: e.g. regular checks as part of routine inspections or
establishing from the material’s data sheet that it is
resistant to specific chemicals.
8. Equipment Marking:
The equipment marking contains at least the information on the product nameplate,
shown on the inside front cover of this manual.
9. Special Condition for Safe Use: The apparatus must only be supplied from a circuit
containing a suitable rate fuse having a breaking capacity of at least 4000 A.