Lutz ST User manual

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Read this operating instructions before start up!
To be retained for future reference.
Operating Instructions
MODULAR
FLOW METER SYSTEM TS
with and without volume preselection

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®

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Explanation of the operating unit
1Unit of measurement used for flow volume (litres, US-gallons, IMP-gallons).
2Unit of measurement used for flow rate (l/min, US-G/min, IMP-G/min).
3Reset key for the displayed flow volume.
4Start key for filling operation in the automatic mode.
Store key to transfer correction factors in the addressable memory.
5Stop key to interrupt filling operation in the automatic mode.
Recall key to display calibration factors from addressable memories.
6Changeover switch to access the higher-level function in dual-function keys.
„S“ 12 is indicated in the display.
7Switching between manual and automatic mode.
In the automatic mode, the word „AUTO“ 13 is indicated in the display.
8Reduced flow rate. „SLOW“ 16 is indicated in the display.
9Numerical keypad 0-9.
10 Display of total volume as long as key remains depressed.
Activation of calibration mode. „CAL“ 17 is indicated in the display.
11 Display of flow volume in the selected unit of measurement as long as key remains depressed.
Key for confirming values (e.g. correction factor, preselected volume).
12 „S“ indicates that the SHIFT key has been pressed, making the higher-level function
(in keys no. 4,5,7,8,10,11) effective.
13 „AUTO“ indicates that the flow meter is operating in the automatic mode.
14 „START“ indicates that an automatic filling sequence has been started.
15 „STOP“ indicates that an automatic filling sequence has been interrupted.
16 „SLOW“ indicates that a step-by-step flow reduction has been activated.
17 „CAL“ indicates that the flow meter currently is in the calibration mode.
18 „BATT“ indicates that the batteries require changing.
19 Battery arrangement when changing the batteries.
20 Battery compartment lid.
21 Terminal socket for data line.

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General safety information
The operator must read the operating instructions before starting the flow meter and follow these instructions
during operation.
1. Note the temperature and pressure limits. The pressure surges produced when closing shutoff valves
(valves, slides, etc.) must not exceed the maximum operating pressure.
2. Disconnect the mains power supply and batteries before assembling and dismantling the various modules
and the data line.
3. Ensure that all connections and fittings are tight and free from tension.
4. Only alkaline-manganese batteries may be used.
5. Repairs may only be carried out by the manufacturer.
The national accident prevention regulations must be observed without fail!
When metering flammable liquids according to Directive 67/548/EEC the following must be additionally
observed:
1. Only use explosion proof flow meter modules.
2. Before operation, ensure equipotential bonding of the delivery system.
3. Use conductive hoses or pipes.
4. Only use explosion proof relay modules.
5. In explosion hazard areas only use explosion proof plugs.
6. Electrostatic danger due to friction - to be wiped with wet cloth only. Do not use solvents for cleaning.
7. Change of battery only outside of hazardous location with appropriate tools. Only use approved battery
types.
The national explosion protection regulations must be observed without fail.

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Table of Contents
A. General 8
1. Hazard 9
2. Safety information 9
3. Scope of supply 9
B. Basic flow meter 10
1. Proper use 10
1.1 Application in explosion hazard areas 10
1.2 Technical data 11
1.3 Maximum pressure depending on temperature of the medium 11
1.4 Complete hose system 12
1.5 Pressure surges (water hammer) 12
1.6 Pressure drop 12
1.7 Accuracy of measurement and flow 13
1.8 Optimization of measurement accuracy by calibration 13
2. Installation 14
2.1 Connection for drum pump operation 14
2.2 Connection to the piping system – Flange connection 15
2.3 Valve connection 16
3. Maintenance and servicing 16
3.1 Cleaning the filter and check valve 16
3.2 Dismantling the basic flow meter 17
4. Repairs 17
C. Operating unit 18
1. Proper use 18
1.1 Technical data 18
1.2 Application in explosion hazard areas 19
1.2.1 Electrical data 20
2. Installation 21
2.1 Insert the batteries 21
2.2 Turning the operating unit 21
2.3 Separate installation of the operating unit 22
2.4 Hose installation of the operating unit 23
3. Operation 24
3.1 Manual mode 24
3.1.1 Resetting the part volume meter 24
3.1.2 Displaying totalizer 24
3.1.3 Displaying flow rate 24
3.1.4 Key lock in manual mode 25

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Table of Contents
3.2 Automatic mode 25
3.2.1 Switching between manual and automatic mode 25
3.2.2 Entering the filling volume 26
3.2.3 Starting the filling process 26
3.2.4 Interrupting the filling process 26
3.2.5 Correcting the filling process 27
3.2.6 Stopping the filling process 28
3.2.7 Repeating a preselected volume 28
3.2.8 Cycle counter 29
3.2.9 Filling with step-by-step interruption (SLOW mode) 29
3.2.9.1 Entering/deleting the SLOW volume 29
3.2.9.2 Displaying the SLOW volume 30
3.2.10 System protection through detection of faults 31
3.2.11 Locking function automatic mode 32
3.3 Calibration 32
3.3.1 Calibrating through comparative measurement 33
3.3.2 Changing the correction factor in the main memory 34
3.3.3 Displaying the correction factor from the main memory 34
3.3.4 Entering the correction factor into an addressable memory location 35
3.3.5 Displaying the correction factor from an addressable memory location 36
3.3.6 Copying the correction factor from the main memory into the
addressable memory location 36
3.3.7 Copying the correction factor from an addressable memory location
into the main memory 37
3.3.8 Calculating of the correction factor in automatic mode 38
3.4 Special functions 39
3.4.1 Changing the unit of measurement 39
3.4.1.1 Unit of measurement litres 39
3.4.1.2 Unit of measurement US-gallons 39
3.4.1.3 Unit of measurement IMP-gallons 39
3.4.1.4 Conversion of the flow volume in kilograms via the correction factor 40
Example 40
3.4.2 Deleting totalizer 41
3.4.3 Correcting operation errors 41
4. Maintenance and servicing 42
4.1 Changing the batteries 42

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Table of Contents
D. Relay module RM1/RM3 and mains unit NG1 43
1. Proper use 43
1.1 Technical data 44
1.2 Application in explosion hazard areas 44
1.2.1 Electrical data 45
2. Installation 46
2.1 Retrofitting the relay module/mains unit 46
2.2 Connection for automatic mode 47-49
2.3 Flow meter with separate installation of relay module RM1/mains unit NG1
and operating unit 50
2.4 Flow meter with relay module RM1/mains unit NG1 and separate installation
of operating unit 51
3. Maintenance and servicing 52
3.1 Changing the fuse in the relay module RM1/mains unit NG1 52
E. Relay module Ex-RM1m 53
1. Proper use 53
1.1 Technical data 53
1.1.1 Special conditions (Ex-RM1m B 230 V) 54
2. Installation 54
2.1 Installation location 54
2.2 Dismantling/Assembly 55
2.2.1 Dismantling 55
2.2.2 Assembly 55
2.3 Electrical connection 55
2.3.1 Connecting the basic version Ex-RM1m B 230 V 56
2.3.2 Connecting the complete version Ex-RM1m K 230 V 57
3. Maintenance and servicing 58
3.1 Changing the fuse 58
F. Repairs 58
G. Traceability 59
H. Annex 59
1. Terminal assignment of cables and connectors 59
2. Trouble shooting 60/61
Certificates of Conformity 63
Spare-part list accessories for modular flow meter system 64-67
Spare part list flow meter program 68-71

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Relay module and protection cap
A. General
The flow meter operates according to the positive displacement principle. In a housing fitted with inlet and outlet
is a measuring chamber through which the fluid is forced to flow on its way through the housing. In the measuring
chamber, a nutating disc blocks the fluid‘s clear path. As it flows through the measuring chamber, the fluid
pushes the nutating disc to one side. It is the action of displacing the impediment which produces the wobble
movement of the disc and circular motion of the nutating disc shaft. By means of a driver, a magnet with several
poles is set into rotation, which is able to activate a magnetically switched contact through the lid of the housing.
Every revolution of the nutating disc is assigned to a constant volume and a fixed number of pulses, so permitting
the electonic evaluating system to determine the volumetric flow through the number of received pulses.
For practically-orientated application, the flow meter system is made up of various modules:
À Operating unit
Electronic evaluating unit with keypad and LCD display for operation of
the flow meter.
Á Protection cap
Protects the modules basic flow meter, relay module or mains unit when
the operating unit is decentrally installed.
 Relay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Mains unit
Supplies power to the operating unit when battery-powered operation is
not desired and when no relay module is needed.
à Basic flow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The flow meter can be used in two different operating modes:
Manual mode: For filling using a manually operated nozzle. The
part volume meter is reset to zero and the required
volume is metered while the nozzle is being
operated.
Automatic mode: The preselected volume is filled by pressing a key.
Automatic mode is possible only when relay module
is connected.
A. General
Operating unit and basic flow meter

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1. Hazard
The modular flow meter system is developed and built in compliance with the relevant fundamental health- and
safety requirements and important EC Directives. Nevertheless, this product can cause danger if it is not used
as advised.
In case of maloperation or improper use guarantee is excluded and there is danger for
• life and health of the user,
• the flow meter and other material assets of the user,
• the efficiency with the flow meter.
All persons who are dealing with the installation/assembly, starting, operation, servicing and maintenance of
the flow meter have
• to be accordingly qualified,
• to observe the local safety and accident preventive rules,
• to exactly follow these operating instructions.
It is your safety!
2. Safety information
In these operating instructions the following symbols are used:
Danger!
Refers to a direct danger.
Non-observance of the precaution will cause death or extremely serious injury.
Warning!
Defines a possibly dangerous situation.
Non-observance of the precaution can cause death or extremely serious injury.
Caution!
Defines a possibly harmful situation.
The product or something in its environment may be damaged if this instruction is not observed.
3. Scope of supply
When unpacking the goods, check the articles that:
• there is no visible damage from transporting,
• the shipped articles, including accessories, are the articles you ordered,
• no screws have loosened during transportation.
A. General

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B. Basic flow meter
1. Proper use
The basic flow meter is used for measuring liquid volumes where gauging metering is not required. The basic
flow meter is precalibrated for the use of water. The measurement of other pure media is also possible. To do this,
a different user-specific calibration factor is entered at the operating unit.
Warning!
The metering of non-compatible liquids damages the flow meter.
Splashing liquid or flying parts can cause injury.
Check by means of the materials indicated in the technical data and a resistance table (e. g. Lutz
resistance table) whether the basic flow meter is suitable for the delivered liquid.
Warning!
Exceeding the temperature range and the operating pressure causes damage to the basic flow meter.
Splashing liquid or flying parts can cause injury.
The ranges indicated in the technical data for temperature of liquid and operating pressure have to be
observed.
1.1 Application in explosion hazard areas
Application in explosion hazard areas or the metering of flammable liquids can cause explosion
resulting in severe injury or death.
Following must be observed:
• Basic flow meters are non-electrical operating appliances not requiring official approval when used in zone 1.
• The basic flow meters VA, HC, LM and UN correspond to the directive 94/9/EC (group II, category 2, for
gases and temperature class T4).
• The basic flow meter may only be used at atmospherical conditions of 0.8 bar and a temperature range of -
20°C up to +40°C . An application is not allowed in atmospheres with flammable dust.
• The temperature of the liquid being pumped is limited for types LM and UN to max. 60°C and for types VA
and HC to max. 80°C.
• An equipotential bonding must be established between basic flow meter, pump tube and hose- or pipe line.
• Use only conductive pressure hoses or conductive pipes.
• For applications with a drum pump the basic flow meter must be mounted outside of the container.
• The admissible operating pressure (type LM, UN - 4 bar and VA, HC - 10 bar) must not be exceeded.
• In case another electronical device for analyzing is used than that provided by the manufacturer the
explosion protection regulations must be observed.
• In order to avoid fire sparkling, assembly works must be carried out by qualified personnel only.
• To prevent corrosion it must be ensured that the basic flow meter is resistant to the liquids being
transferred.
• To prevent an explosive gas atmosphere in the basic flow meter use a solid hose system.
Any other use as well as any modifications of the product have to be considered as improper use. The
manufacturer will not be held responsable for any damages resulting from such improper use, the risk lies
solely with the user.
B. Basic flow meter

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B. Basic flow meter
p / (bar)
T / (°C)
1.2 Technical data
Type ST SL LM UN VA I
Flow rate min. 10 l/min min. 10 l/min min. 10 l/min min. 10 l/min min. 10 l/min
max. 120 l/min max. 120 l/min max. 120 l/min max. 120 l/min max. 100 l/min
Temperature 60 °C 60 °C 60 °C 60 °C 80 °C
Viscosity 2000 mPas 2000 mPas 2000 mPas 2000 mPas 5000 mPas *
Operating pressure 4 bar 4 bar 4 bar 4 bar 10 bar
Accuracy ± 1% standard ± 1% standard ± 1% standard ± 1% standard
£1% with adjust- £1% with adjust- £1% with adjust- £1% with adjust- ± 1%
ment to appli- ment to appli- ment to appli- ment to appli-
cation conditions cation conditions cation conditions cation conditions
Inlet port G 2 male thread G 2 male thread G 2 male thread G 2 male thread G 1 1/4
to fit connector to fit connector to fit connector to fit connector male thread
with union nut with union nut with union nut with union nut
Outlet port G 1 1/4 G 1 1/4 G 1 1/4 G 1 1/4 G 1 1/4
male thread male thread male thread male thread male thread
Weight 745 g 780 g 900 g 900 g 3,240 g
Materials:
Housing PPO PPO PPS PPS SS (1.4581)
Measuring chamber PPO/PPS PPO/PPS LCP LCP SS/ETFE/ETFE
Seals Viton®Viton®FEP FEP FEP
Magnet BaFe, PA, PPS encapsulated BaFe, brass, PPS encapsulated ETFE encapsulated
SS (1.4401) SS
Suitable for no no yes yes yes
Ex-application conductive conductive conductive
Order No. 0212-100 0212-200 0212-300 0212-400 0212-500
Description of material * depending on the application
PPO = Polyphenylene Oxide LCP = Liquid Cristalline Polymere
PPS = Polyphenylene Sulfide PA = Polyamide
SS = Stainless steel FEP = Tetrafluoro Ethylene/
Viton®= Fluoro Elastomer Hexafluoro Propylene
BaFe = Barium-Ferrite
Viton® is a registered Trademark of DuPont Dow Elastomers.
1.3 Maximum pressure depending on temperature of the medium
Diagram 1
Maximum pressure depending on
temperature of the medium
Type VA I, II
Type ST, SL, LM, UN

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1.4 Complete hose system
Before initial starting of the flow meter, the entire piping system must be vented from the pump through to the
shutoff element (nozzle, solenoid valve or similar). During operation, care must be taken to ensure that the
complete system is filled with liquid.
1.5 Pressure surges (water hammer)
Considerable pressure fluctuations with so-called water hammer can build up in the system as a result of delays
(disconnection/shutoff) or acceleration of the flowing liquid column when using long delivery lines or when using
solenoid valves with short opening and closing times.
Warning!
The brief pressure peaks or surges due to water hammer can cause serious damage and destroy the
flow meter, pump or other components in the system!
Damage by uncontrolled splashing liquid. Depending on the medium concerned, this can lead to
caustic burns, explosion hazards, toxic vapours, electric shocks, danger of slipping and other dangers!
Example: A valve closing time of 20 ms can cause a pressure surge of up to 10 bar in a 10 metres long 1" pipe
at a flow rate of 50 l/min.
Pressure surges can be prevented as follows:
• Use a larger nominal diameter (DN) to reduce the flow speed in the delivery line.
• Filling with step-by-step interruption (SLOW mode, see chapter C 3.2.9).
• Use relief valves and pressure limiting valves to eliminate impermissible pressure peaks.
1.6 Pressure drop
Diagram 2 indicates the pressure drop relative to flow. The solid line is applicable for aqueous liquids
(r »1 kg/dm³, h » 1 mPas).
In case of media with different density (r ¹1 kg/dm³) the pressure drop values have to be taken from the solid
line in diagram 2 and multiplied by the density value of the liquid.
Media with a high dynamic viscosity (h >> 1 mPas) like high-density media, cause a higher pressure drop. The
limiting curve for permissible viscosity at r= 1 kg/dm³ is depicted in diagram 2 as a dotted line. If the density r
is greater than 1 kg/dm³, the pressure drops in the diagram must be multiplied by the actual density.
B. Basic flow meter
Diagram 2
Pressure drop depending on flow rate.

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1.7 Accuracy of measurement and flow
In the factory the meter is calibrated for a flow rate of 40 l/min. Other flow rates affect the measurement accuracy
of the flow meter (see diagram 3). The flow rate may be determined via the SPEED key 11 during the filling
process.
For adjusting the measuring result to the determined flow rate, the recent correction factor must be called in from
the main memory (see chapter C 3.3.3). The recent correction factor then is set off against the volume out of
diagram 3 related to the flow rate. Then the new correction factor is entered (see chapter C 3.3.2).
1.8 Optimization of measurement accuracy by calibration
When using a flow meter as an automatic batch meter (frequent handling of the same volume), the meter should
be calibrated to the operating point. By comparative measurement, the displayed volume is coordinated to the
actual volume (see chapter C 3.3.1). For this operating point, the measurement accuracy is 1 digit (corresponding
to ± 0.1 litres, ± 0.01 US-G, ± 0.01 IMP-G).
Example for type ST, SL, LM, UN
Q= 20 l/min ÜKrel = 0.01
K1= 1.028
K2= K1+ Krel
K2= 1.028 + 0.01
K2= 1.038
Example for type VA I:
Q= 20 l/min ÜKrel = 0.03
K1= 3.37
K2= K1+ Krel
K2= 1.028 + 0.03
K2= 3.4
Q: Flow rate
Krel:Relative correction factor out of diagram 3
K1:Recent correction factor out of main memory
K2:New correction factor
Diagram 3
Correction factor depending on flow rate
B. Basic flow meter

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2. Installation
2.1 Connection for
drum pump operation
Mounting steps flow meter
type ST, SL, LM and UN:
1. Mount the check valve (option)
and filter screen into the inlet
(arrow). The non-return valve
may be only installed together
with a strainer.
2. Insert the o-rings into the collar
bush. Wet the sealing surfaces
and o-rings with a suitable
lubricant.
3. Place the wing nut onto the
collar bush
4. Screw the collar bush onto the
outlet of the pump tube
5. Screw the wing nut with the flow
meter
6. Screw the hose fitting onto the
flow meter outlet G 1 1/4
Connection for drum pump operation type ST, SL, LM and UN
Connection for drum pump operation type VA I
Mounting steps flow meter
type VA I:
1. Insert the seal into the wing nut
2. Screw the drum pump
connection onto the outlet of
the pump tube
3. Insert the seal into the wing nut
and screw it with the flow
meter
4. Screw the hose fitting onto the
flow meter outlet G 1 1/4
B. Basic flow meter

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2.2 Connection to the piping system – Flange connection
Caution!
For connecting the flow meter to the piping system, the following must be observed:
• Pipes, fittings, etc. must be suitably supported so that additional weight and vibrations are not
transmitted to the flow meter!
• Suction and discharge lines must always be connected without tension. The piping must be rerouted
if an offset cannot be compensated by appropriate means!
Flange connection type ST, SL, LM and UN
Mounting steps flow meter
type ST, SL, LM and UN
1. Mount the check valve (option)
and filter screen into the inlet
(arrow)
2. Push the o-ring onto the collar
bush. The non-return valve may
be only installed together with
a strainer.
3. Place the wing nut onto the
collar bush and screw it with
the flow meter. Wet the sealing
surfaces and o-rings with a
suitable lubricant.
4. Insert the seals into the screw
sockets
5. Screw the screw sockets onto
the flow meter and collar bush
6. Insert the seals into the screw
sockets
7. Mount the flange
8. Screw on the flanged bush
Flange connection type VA I
Mounting steps flow meter
type VA I:
1. Place the flange plate onto the
collar bush
2. Insert the seal into the collar
bush
3. Screw on the collar bush to the
flow meter
B. Basic flow meter

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2.3 Valve connection
Mounting steps:
1. Screw the double nipple
G 3/4 – G 1 1/4 into the inlet
and outlet side of the solenoid
valve
2. Mount the hose connection
G 1 1/4 on both sides of the
hose
3. Connect the hose with the flow
meter outlet and the solenoid
valve inlet
Note flow direction of the
solenoid valve!
4. Screw the discharge bend onto
the outlet side of the solenoid
valve
Valve connection
3. Maintenance and servicing
3.1 Cleaning the filter and check valve
It is advisable to flush and clean the basic flow meter after handling aggressive, tacky, crystallizing or very
contaminating liquids.
Procedure type ST, SL, LM and UN
1. Empty the flow meter
2. Release the wing nut
3. Remove the filter and clean with a paintbrush or blow through with compressed air
4. Press in the check valve manually and blow through with compressed air
B. Basic flow meter

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3.2 Dismantling the basic flow meter
The basic flow meter can be dismantled for cleaning the measuring chamber
or for troubleshooting.
Warning!
The basic flow meter can still contain liquid during dismantling!
In case of aggressive liquids, this can lead to burns, poisoning,
irritation of the skin etc.
Wear appropriate protective clothing when handling aggressive liquids.
Basic flow meter must be emptied before dismantling. Despite of
previous emptying, residual liquid can still be in the flow meter housing
during dismantling process. Therefore always remove the cover À
upwards.
+When dismantling the basic flow meters of type LM, UN and VA it is
recommended to replace the o-ring Á. Wet the sealing surfaces and
o-rings with a suitable lubricant.
Dismantling the basic flow meters type ST, SL, LM and UN:
1. Release the screws Åon the bottom side of the flow meter.
2. Remove the cover Àupwards.
3. Lift the measuring chamber Ãout of the basic body Ä.
4. Remove the o-ring Âof the measuring chamber.
5. Carefully open the measuring chamber.
The assembly is effected in reverse order.
When mounting the cover Àtake care of the right position to the
basic body Ä.
Dismantling the basic flow meter type VA I:
1. Release the screws Åon the bottom side of the meter.
2. Remove the cover Àupwards.
3. Remove the clamp Ã.
4. Lift the measuring chamber Âout of the basic body.
5. Carefully open the measuring chamber.
The assembly is effected in reverse order.
When mounting the cover Àtake care of the right position to the
basic body Ä.
Dismantling the basic flow meter
B. Basic flow meter
4. Repairs
When returning the device to the supplier it is compulsary to attach the
decontamination certificate duly filled out and signed by the operator (see
service area www.lutz-pumpen.de).

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C. Operating unit
1. Proper use
Caution!
Device failure by corrosion!
Use the operating unit BE1 V or Ex-BE1 V for applications in aggressive environments.
Caution!
The electromagnetic compatibility of the device is compatible with the radiated interference and
interference immunity for residential and industrial areas. To avoid interfering influences in a
decentralised installation of individual modules, only use data cables from the Lutz company and route
the data cables separate from low-voltage lines.
Type BE1 BE1 V Ex-BE1 Ex-BE1 V
Display 6-digit LCD-display, 19 mm character height
Quantity l, US-G, IMP-G
Flow rate l/min, US-G/min, IMP-G/min
Change battery, function mode, individual quantity,
total quantity, number of filling processes
Functions • Reset partial quantity and total quantity
• Automatic calibration
• Storing differing calibration factors
• Lock keys against unauthorised access
• Changeover to manual or automatic mode with relay module (optional)
• Cycle counter
• System protection through detection of faults
• Advance cut-out
Type of protection IP 54 in combination with flow meter or optional modules
Power supply 3 x 1.5 V alkaline manganese batteries or by relay module, mains unit
Explosion protection class - - II 2G EEx ib IIA T4 II 2G EEx ib IIA T4
Use in aggressive areas not recommended suitable not recommended suitable
Electronics replaceable completely replaceable completely
potted potted
Repairs yes no yes no
Weight 200 g 300 g 220 g 310 g
Order No. 0212-001 0212-003 0212-002 0212-004
1.1 Technical data
C. Operating unit

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C. Operating unit
1.2 Application in explosion hazard areas
Danger!
Fire and explosion hazard due to delivered liquid!
Combustion hazard. Blast wave: Flying parts can cause death.
For measuring inflammable liquids according to Directive 67/548/EEC
use operating unit Ex-BE1 or Ex-BE1 V only.
Danger!
Danger of explosion! Friction causes electrostatic charges!
Blast wave: Flying parts can cause death.
Operating unit to be wiped with wet cloth only.
Danger!
Danger of explosion due to inadmissible warming up!
Blast wave: Flying parts can cause death.
Following electrical data and terminal assignment must be observed.

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1.2.1 Electrical data
Internal power supply 4.5 V (DC); Approved battery types
for the power supply:
• VARTA Alkaline, No.4001, Size LR1, 1.5V
• VARTA High Energy, No.4901, Size LR1, 1.5V
• DURACELL Alkaline, Type MN9100, Size N, 1.5V
• Energizer Alkaline; Type E90, LR1, 1.5V
Change only outside of hazardous location.
Module input Explosion protection class intrinsic safety EEx ib IIB;
[Socket 1(+), 3(-), 4, 6 or Max. values:
internal plug St1 or St2] Uo=5V
Io= 55 mA
Po= 68 mW
Characteristic curve: linear
Ci= 1.1 µF
Liunconsidered small
Max. admissible outer values for:
(following values correspond to the computer program
for PTB report ThEx-10)
Lo(mH) IIB
Co(µF)
216
119
0.5 24
when connecting with an active module output in explosion
protection class intrinsic safety with max. admissible values:
Uo= 6.6 V
Io= 165 mA
Po= 272 mW
Characteristic curve: linear
following max. admissible outer values are valid for the connection
with the module: (these values correspond to the computer
program for PTB report ThEx-10)
Lo(mH) IIB
Co(µF)
2 6.9
1 9.9
0.5 12
C. Operating unit