BARTEC BENKE HYGROPHIL H 4230-12 Ex Zone II User manual

BARTEC BENKE GmbH  Schulstraße 30  94239 Gotteszell Deutschland  Telefon [phone]  Telefax [phone]
E-Mail: gottes[email protected]e  Internet: www.bartec-benke.de
HYGROPHIL® H 4230-12 Ex Zone II
Operating Instructions
Softwareversion 1.042
BA 060207

Contents
C - 1
HYGROPHIL® H 4230-12 BA 060207 19.02.2018
Table of Contents
Contents Page Date of issue
1System description _________________________________ 1
1.1 Task and fields of use ________________________________ 1
1.2 Measurement principle _______________________________ 2
1.3 Structure of the humidity measurement system ____________ 2
1.3.1 Measuring chamber __________________________________ 4
1.3.2 Ejector ____________________________________________ 5
1.3.3 Pressure-reduction controller __________________________ 5
1.3.4 Hose pump ________________________________________ 5
1.3.5 Water detector ______________________________________ 5
1.3.6 Pressure control module ______________________________ 5
1.3.7 Rinse valve ________________________________________ 5
1.3.8 SILAS-Controller ____________________________________ 6
1.3.9 Control and evaluation electronics ______________________ 7
1.3.10 Controls and displays ________________________________ 8
1.3.10.1 Keys ______________________________________________ 8
1.3.10.2 Signal lamps ______________________________________ 11
1.3.10.3 Display ___________________________________________ 11
1.3.11 Interfaces _________________________________________ 12
1.3.12 Temperature sensors _______________________________ 12
1.3.13 Gas sampling hose _________________________________ 12
1.3.14 Connection for external water detector __________________ 12
1.3.15 Filter _____________________________________________ 12
1.4 Technical data _____________________________________ 13
1.5 Details when ordering _______________________________ 15
1.5.1 Basic equipment ___________________________________ 15
1.5.2 Accessories _______________________________________ 15
1.5.3 Spare parts _______________________________________ 19 16.01.08
1.5.4 Individual parts for measuring chamber _________________ 22
1.5.5 Consumables ______________________________________ 23
2Safety precautions ________________________________ 25
2.1 General information _________________________________ 25
2.2 Equipment-specific instructions ________________________ 25
2.3 Installation location _________________________________ 26
2.4 Electrical connection ________________________________ 26
2.5 Operating the equipment _____________________________ 27
3Installation _______________________________________ 29
3.1 Wall mounting _____________________________________ 30
Using the wall mount ________________________________ 31
3.2 Mobile use ________________________________________ 31
3.3 Connection instructions ______________________________ 32
3.3.1 Assignment of terminals _____________________________ 32
3.3.2 Mains connection ___________________________________ 32
3.3.3 Temperature sensors _______________________________ 33
3.3.4 Analogue outputs ___________________________________ 33
3.3.5 Warning- / ERROR contact ___________________________ 33
3.3.6 PROFIBUS _______________________________________ 34
3.4 Mounting the gas sampling hose _______________________ 35
3.4.1 Mounting instructions ________________________________ 35
3.4.2 Mounting sequence _________________________________ 37
3.4.3 Electrical connection ________________________________ 37
3.5 Compressed air connection ___________________________ 38
3.5.1 Mounting sequence _________________________________ 39
3.5.2 Setting the ejector’s operating pressure _________________ 40

Contents
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Operating Instructions HYGROPHIL® H 4230-12 BA 060207
Contents Page Date of issue
3.6 Pressure-reduction controller _________________________ 41
3.6.1 Assembly drawing __________________________________ 41
3.6.2 Settings __________________________________________ 42
3.7 Filling the water storage tank _________________________ 44
3.8 External water detector ______________________________ 45
3.8.1 Electrical connection ________________________________ 45
3.8.2 Calibration ________________________________________ 45
3.8.3 Installation ________________________________________ 46
4Operation ________________________________________ 47
4.1 Start-up __________________________________________ 47
4.2 Operating mode ___________________________________ 47
4.3 Configuration ______________________________________ 48
4.4 Changing the slave address __________________________ 48
5Programming _____________________________________ 49
5.1 General notes _____________________________________ 49
5.1.1 Interaction ________________________________________ 49
5.1.2 Programming process _______________________________ 50
5.2 Changing the program parameters _____________________ 52
5.2.1 Programming the analogue outputs ____________________ 52
5.2.2 Programming the hose heating parameters ______________ 53
5.2.3 Programming the pump control________________________ 54
5.2.4 Programming the equipment configuration _______________ 55
5.2.4.1 Temperature sensors _______________________________ 55
5.2.4.2 Safety switch-off („TIMEOUT”) ________________________ 55
5.2.4.3 Water detector_____________________________________ 56
5.2.4.4 Hose heating controller ______________________________ 56
5.2.4.5 Compressed air control ______________________________ 56
5.2.4.6 Flow setting _______________________________________ 57
5.2.4.7 Reference pressure ________________________________ 58
5.2.4.8 Sensor calibration __________________________________ 58
5.2.5 Limit monitoring ____________________________________ 59
6Maintenance _____________________________________ 61
6.1 General information ________________________________ 61
6.2 Testing the analogue outputs _________________________ 62
6.3 Measuring chamber ________________________________ 62
6.3.1 Cleaning interval ___________________________________ 62
6.3.2 Types of dirt ______________________________________ 63
6.3.3 Disassembling the measuring chamber _________________ 64
6.3.4 Dismantling the measuring chamber ___________________ 68
6.3.5 Changing the humid temperature sensor ________________ 70
6.3.6 Changing the dry temperature sensor __________________ 71
6.3.7 Cleaning the measuring chamber ______________________ 72
6.3.8 Assembling the measuring chamber ___________________ 76
6.4 Internal water detector ______________________________ 77
6.5 Water pump_______________________________________ 78
6.6 Gas sampling hose _________________________________ 79
6.7 Compressed air conditioner __________________________ 79
6.7.1 Emptying the condensate separator ____________________ 79
6.7.2 Cleaning the filter __________________________________ 80
6.8 Pressure reduction controller _________________________ 81
6.9 Changing fuses ____________________________________ 82
6.10 Replacing the Display-/ Profibus-board _________________ 83
6.11 Replacing the electronics board _______________________ 84
6.12 Replacing the proportional valve ______________________ 86

Contents
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HYGROPHIL® H 4230-12 BA 060207 19.02.2018
Contents Page Date of issue
7Error and warning messages ________________________ 87
8PROFIBUS _______________________________________ 91
8.1 Framework structure ________________________________ 91
8.2 Standby mode _____________________________________ 92
8.3 Channel description _________________________________ 93
8.3.1 Service channel ____________________________________ 93
8.3.2 Measured value channel _____________________________ 94
8.3.3 Arithmetic value channel _____________________________ 95
8.3.4 Output channel ____________________________________ 96
8.3.5 1-channel parameters _______________________________ 98
8.3.6 2-channel parameters ______________________________ 100
8.4 Examples ________________________________________ 104
8.4.1 Reading from HYGROPHIL H ________________________ 104
8.4.2 Writing to HYGROPHIL H ___________________________ 105

Contents
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Operating Instructions HYGROPHIL® H 4230-12 BA 060207
All rights reserved. Subject to change without prior notice.
No part of this document may be reproduced, processed or distributed
in any form or by any means without the prior written permission of
BARTEC BENKE.
Copyright © 2018 by
BARTEC BENKE
Schulstraße 30
D-94239 Gotteszell
Document / Version:
BA 060207
Softwareversion 1.042
Valid from / Author:
07.02.2006
G. Rothe
Revised at/ by:
19.02.2018
K. Hacker

System description
1
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1 System description
1.1 Task and fields of use
HYGROPHIL® H 4230 is a measuring system for determining the amount of
water vapour in air and other gases.
In many processes, monitoring and controlling gas humidity is a must if you
want to achieve a consistently high product quality, use energy efficiently
and adhere to the regulations regarding emission limits.
HYGROPHIL® H 4230 is a special measuring unit for measuring humidity
under extreme measuring conditions such as:
 High measurement gas temperatures
 Gas humidity up to saturation
 Significant contamination in the form of dust, oil, grease, external gas and
solvents, also in highly corrosive form.
Being a high-end device, HYGROPHIL® H 4230 is particularly suitable for
continuous industrial use.
HYGROPHIL® H 4230 also makes it possible to measure humidity in pro-
cesses during which this is otherwise not continuously possible or can only
be done using laboratory methods, if at all.
HYGROPHIL® H 4230 uses a microprocessor to calculate all humidity-
related variables in various scales and, in addition, to automatically monitor
the unit itself. As a result, maintenance is minimized.
Thanks to its special features, HYGROPHIL® H 4230 can be used in places
where other measuring systems fail due to unfavourable ambient conditions.
Examples include:
 Flue gas measurement in power stations
 Flue gas measurement in incineration plants, even before filtering
 Fabric processing facilities
 Hot-air tunnels for preparing fast food
 Ovens
 Roasting facilities
 Copper extraction facilities, even subject to contamination by sulphuric ac-
id
 All types of raw material dryers
 Sintering facilities for ores
The response rate of the measuring system guarantees that an appropriate
closed-loop control can be operated in all application cases.
HYGROPHIL® H 4230-12 is explosion proof. It can be used in hazardous
zone II area. To guarantee the explosion protection is the enclosure continu-
al perfused by a scavenging gas. The scavenging gas flow is monitored and
controlled.
The rinsing is intended for gases which have a higher density than the scav-
enging gas.
Task
Fields of use

System description
2
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.2 Measurement principle
HYGROPHIL® H 4230 works in accordance with the principle of psychromet-
ric gas humidity measurement, measuring the difference in temperature be-
tween two measurement sensors. The difference in temperature results from
the fact that one of the two temperature sensors is moistened. Heat is re-
moved from it by means of evaporation. Using the difference between the
„humid temperature“ and the „dry temperature“ it is possible to determine
various humidity measurement variables precisely based on fixed mathemat-
ical relations. This measurement principle gives rise to a high degree of pre-
cision and reproducibility, corresponds to the secondary standard method in
accordance with DIN 50012 and does not require any calibration. It is one of
the most reliable methods used to measure gas humidity.
Usually, however, this measurement procedure is subject to limits if the gas
temperature exceeds 100 °C or if the gas to be measured is impure. On a
conventional type of humidity sensor, deposits have a detrimental effect on
the evaporation rate and falsify the measurement result.
These limitations are eliminated in this measuring unit that has been further
developed to form an „impact jet psychrometer“. The system can be used for
an extended period of time without failure even at high temperatures and
high humidity levels and for highly polluted or aggressive gases.
1.3 Structure of the humidity meas-
urement system
The measuring chamber and electronics unit are accommodated in stainless
steel enclosures flanged together, each with a door that can be opened sep-
arately.
The water tank is attached to the exterior of the enclosure.

System description
3
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
Gas sampling hose
Connecting cable for hose heating
Water container
Electronics enclosure
Measuring chamber enclosure
Earth connection
Rinse valve
SILAS Controller
Compressed air conditioner
Pressure control module

System description
4
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.1 Measuring chamber
The venturi system and the water cylinder with the humidity sensors are ac-
commodated in the measuring chamber.
To begin with, the air to be measured flows through a venturi nozzle, in
which the gas flow rate is determined by measuring the difference in pres-
sure. Located close to the nozzle is a sensor that measures the dry tempera-
ture. When it leaves the nozzle, the air takes the form of a laminar jet, re-
ferred to as the impact jet, and hits the water surface of the measuring cell.
The sensor that measures the humid temperature (HT) is positioned at the
centre of the measuring cell. The temperature values that are recorded are
made available to the electronics unit and further processed there.
The measuring cell is constantly fed with water from the storage tank by a
hose pump. The water level in the measuring cell is monitored by a sensor.
The pressure in the measuring chamber is likewise measured using a sen-
sor. It is used to correct the measurement results and monitor the equip-
ment. The measuring chamber is followed by the ejector. Currents of air are
used here to create negative pressure in order to pump the measurement
gas through the system. The pumping rate of the ejector is controlled using a
proportional valve, with the help of the gas flow rate measurement in the
venturi nozzle. As a result, the gas flow rate remains constant at around
14 l/min.
Excess water, together with the measurement gas and compressed drive air,
is pumped out of the equipment via the ejector. It leaves the equipment
through a connection at the bottom.
Measuring chamber
Water sensor
Tube pump
Ejector
Pressure control
module

System description
5
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
With the specification HYGROPHIL® H 4230-12 can the measuring gas be
conveyed into the measuring chamber by using the present over-pressure.
For this purpose a heatable pressure-reduction controller is to install before
the gas sampling hose (see section 1.3.3).
1.3.2 Ejector
The lower section of the measuring chamber contains the ejector, an air jet
pump that pumps the measurement air through the measuring chamber by
means of compressed air. Negative pressure of up to -200 hPa is allowed at
the extraction point. By controlling the compressed air that is fed, the gas
flow rate is kept constant at 14 standard litres per minute. The actuator is a
proportional valve controlled by pulse width modulation. The actual-value
sensor is the venturi system in the upper section of the measuring chamber
in connection with a differential-pressure sensor.
1.3.3 Pressure-reduction controller
If the over-pressure of the measuring gas shall be used to convey it into the
measuring chamber, the heatable pressure-reduction controller with filter
must be installed at the entry of the gas sampling hose
The controller must be adjusted to a pressure that guarantees a sufficient
flow through the venturi nozzle. Ejector operating is to deactivate (software
settings for operating with over-pressure see section 3.6).
1.3.4 Hose pump
The hose pump propels the water from the storage tank into the measuring
cell. The pump’s delivery rate is regulated in such a way that part of the wa-
ter flows out of the cylinder.
1.3.5 Water detector
The water detector uses a capacitive proximity switch to make sure that the
water level in the measuring cell remains correct.
1.3.6 Pressure control module
To guarantee the explosion protection the enclosure is continual perfused by
a scavenging gas (as a rule air or nitrogen). The Pressure control module
regulates the flow to a defined mass of gas.
1.3.7 Rinse valve
The scavenging gas is fed via the rinse valve. The rinse valve is controlled
by the SILAS-Controller.

System description
6
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.8 SILAS-Controller
The SILAS-Controller controls the flow of the scavenging gas and monitors
the pressure inside the enclosure during rinsing and operating mode, to
make possible the use of HYGROPHIL H in hazardous zone II. An over-
pressure must be kept in the enclosure to prevent the device from inflowing
of hazardous gases.
The programmed settings of the SILAS-Controller are factory made (see ta-
ble below). They guarantee a safe operating in hazardous zone II.
The switch S1 must be turned into position 1 to monitor the rinse function.
The settings for switch S2 are programmed as follows:
Pos.
Function
Display
1
Pre-purge function
PRGYP2
2
Pre-purging time
PT 3:00
[min:sec]
3
Pressure value P1
P1 1.0
[mbar]
4
Pressure value P2
P2 1.5
[mbar]
5
Pressure value P3
P3 15.0
[mbar]
6
Pressure value P4
P4 20.0
[mbar]
7
Function of Relays K3
K3 K2+
8
Time Delay
DLY 30
[sec.]
9
Bypass
NORMAL
The manual for the SILAS-controller is attached for further information.
Switch S1
Switch S2

System description
7
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.9 Control and evaluation electronics
The signals for dry temperature, humid temperature, differential pressure
and measuring chamber pressure are passed to the electronics unit, where
a microprocessor is used to calculate the desired humidity measurement
variables and monitor the equipment’s functions.
The following measurement variables are recorded or calculated by the elec-
tronics unit and can be displayed and saved on the PC:
 Dry temperature TT
 Humid temperature HT
 Absolute pressure SP
 Differential pressure P
 Auxiliary temperatures T1external (via ext. temperature sensor)
Tinternal (for compensating HT)
 Dew-point temperature DT
 Absolute humidity MH
 Specific humidity SH
 Volumetric water vapour content Vol%
 Partial water vapour pressure VP
 Enthalpy h
 Saturation deficit DVP
 Relative humidity for T1external RH
The following monitoring and control functions are carried out:
 Open-loop control of the proportional valve for regulating air flow rate
 Closed-loop control of the gas sampling hose temperature
 Monitoring and verification of
• Water level internal, option: external
• Air flow rate
• Temperature sensors
• Adherence to the measurement range at outlets
• Gas sampling hose temperature
• Plausibility of calculation results
• RAM, ROM semiconductor memories
• A/D converters
Variables calculated
Variables measured

System description
8
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.10 Controls and displays
When the enclosure door on the right is opened, the operator panel be-
comes accessible, together with its display, signal lamps and operating keys.
1.3.10.1 Keys
The measurement variables are displayed by simply pressing a key. The
keys that can be pressed to display the measurement variables are labelled
appropriately. Several keys are also assigned to numbers or other charac-
ters. This double assignment is needed in programming mode.
Display
Keys
Signal lamps

System description
9
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
Display of the dry temperature of the incoming gas (corresponds to the gas
sampling hose temperature)
Display of the humid temperature of the incoming gas
Display of the dew-point temperature of the gas to be measured
Display of the volumetric water vapour content
Display of the current partial water vapour pressure of the gas to be meas-
ured
Display of the absolute humidity of the gas to be measured
Display of the specific humidity of the gas to be measured
Display of the enthalpy of the gas to be measured
Display of the saturation deficit of the gas to be measured
Display of the absolute pressure in the measuring chamber
Display of the relative external humidity (RHexternal) (only if T1external is defined)
Display of the differential pressure (pressure difference in the venturi nozzle)
TT
1
HT
2
DT
3
VOL%
4
VP
5
MH
6
SH
7
H
8
DVP
9
SP
–
RH
0
P
,

System description
10
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
Display of the temperature value of T1external (only if T1external is activated)
Backlighting ON/OFF
Display of the proportional valve regulation ratio
Display of the internal temperature (Tint)
Standby (the pump speed is decreased by a factor of 10, while the setpoint
value for the differential pressure is fixed)
Key for changing the slave address and displaying the baud rate
Test function for analogue outputs (former key F7 )
Delete value in programming mode
Confirmation key in programming mode
Start programming mode
Interrupt or continue bus operation
Trigger a software reset
F5
F6
CLEAR
ENTER
PROG
LOCAL
RESET
F1
F2
F3
F4
F7

System description
11
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.10.2 Signal lamps
For the purpose of signalling various operating states, the panel contains six
fields with symbols and a signal lamp for each.
The heating (gas sampling hose) is switched on (red)
The water pump is in operation (red)
The proportional valve is opening (red)
The proportional valve is closing (red)
A warn- or error message is present (red)
The PROFIBUS is exchanging data (green)
1.3.10.3 Display
The display is made up of two rows and is backlit.
The measurement variables called using the keyboard are displayed togeth-
er with their dimensions in the bottom line. The top line shows the operating
status or error messages, depending on the current conditions.
During programming, the display is used for interaction with the user. Appro-
priate displays, messages and questions are displayed. The line at the top
shows the menu that is open, while the line at the bottom shows the function
to be programmed or a value to be changed.

System description
12
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.3.11 Interfaces
Two electrically isolated analogue current outputs are available for the pur-
pose of evaluating and processing the measured values.
You can allocate any humidity measurement variables or auxiliary variables
to these outputs as you wish.
You are free to define the limits of the measurement ranges within the re-
spective overall measurement range as you wish (see section 5.2.1).
The analogue outputs are constantly monitored to ascertain whether the cur-
rent measured value lies within the respective measurement range that has
been programmed. If there are deviations, a fault is reported.
In addition, one of the two analogue current outputs can be monitored to as-
certain whether it adheres to a minimum value and maximum value.
Once they have been switched on, the outputs remain at 0 until the normal
operating conditions are reached.
If a fault is reported during measurement operation, the outputs are fixed at
the value that they had directly before the fault report appeared.
Field bus interface (PROFIBUS DP).
All measured values can also be recorded using the field bus interface. In
addition, the system can be configured using this interface.
1.3.12 Temperature sensors
The internal temperature sensor, Tinternal, is built into the enclosure as a fixed
element.
It is used for compensating the humid temperature.
For measuring temperature-dependent humidity variables (such as relative
humidity (RH) or enthalpy (h)), you have the option of installing an external
temperature sensor (T1external). This must be placed in the position where the
humidity variable is to be measured.
1.3.13 Gas sampling hose
The gas humidity is not measured within the respective system. Rather, the
gas is extracted from there and pumped to the HYGROPHIL system via a
connecting line. It is essential that no water vapour condenses within the
connecting line as this would falsify the measurement result and could pos-
sibly lead to operating problems. In order to prevent this, the temperature of
this line (and of the entire suction apparatus) must be kept above the maxi-
mum dew-point temperature to be expected.
To this end, a gas sampling hose is used and its temperature is automatical-
ly kept constant. At the same time, the dry temperature sensor is used as
the actual-value sensor. By programming the dry temperature (TT), there-
fore, you also specify the gas sampling hose temperature.
1.3.14 Connection for external water detector
An external water detector is available as an optional extra for monitoring the
level in the water storage tank.
1.3.15 Filter
HYGROPHIL® H 4230 is highly insensitive to dirt. Under certain extreme op-
erating conditions, however, it may make sense to use a filter in order to ex-
tend the maintenance interval for the measuring chamber.
If required, please ask our expert consultants to select a suitable filter.
Field bus interface
Two analogue outputs

System description
13
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
1.4 Technical data
Humidity measurement
Measurement principle
Psychrometric gas humidity measurement in line with the impact jet method
Transducer
PT 100/ 4-conductor in accordance with DIN IEC 751
Computational accuracy
 0.01%
Computing time
Approx. 2s
Settling time
t90 = 90s (for sudden change in SH from 10 to 190 g/kg)
Air/gas flow rate
Adjustable, max. 17,5 Nl/min
Water intake
Max. 25 ml/h (hose pump)
Water reserve
2l (enough for approx. 3 days)
Compressed air intake
2...5 bar (max. air consumption 2000 Nl/h) -when operating without over-pressure-
Measured variable inputs
Measured variable
Measurement range
Resolution
Accuracy
Type
Dry temperature TT
0...140 °C
0.1 °C
 0.5% of the
measurement
range
Primary
Humid temperature HT
0...140 °C
Temperature T1external (optional)
0...200 °C
Absolute pressure SP
500...1500 hPa
1 hPa
 1%
Dew-point temperature DT
20...100 °C
0.1 °C
Calculated
Volumetric content H2O Vol%
2...100 %
0.1 %
Absolute humidity MH
15...1000 g/kg
1 g/kg
Specific humidity SH
15...1000 g/kg
1 g/kg
Enthalpy h
35...1000 kJ/kg
1 kJ/kg
Current vapour pressure VP
10...1000 hPa
1 hPa
Saturation deficit DVP
0...1000 hPa
1 hPa
Outputs
Signal output
Analogue output
2 electrically isolated output channels, can be assigned to each of the measurement
ranges, spread, error behaviour programmable
Output signal
0…20 mA or 4…20 mA (programmable), linear
Permissible load
 500 
Accuracy
 0.2% of the associated measured value
Inputs
External water detector
24 V d.c., NPN
T1external
PT 100/ 4-conductor in accordance with DIN IEC 751
Data interface
Field bus interface
PROFIBUS DP
Electrical data
Auxiliary power
Measuring unit: 90…264 V a.c., 47...63 Hz, approx. 30 VA
Gas sampling hose: 230 V or 115 V a.c.; approx. 100 VA/m
Relay
Warning relay
Display of warnings Load: 1 A/24 V d.c., at least 10 mA
ERROR relay
Display of failures Load: 1 A/24 V d.c., at least 10 mA
Ambient conditions
Permitted working temperature
+5...+50 °C
Permitted storage temperature
-20...+70 °C (without water)
Climate category
KWF in accordance with DIN 40040
Reference conditions
23 °C 2 °C / 230V ± 2%

System description
14
Operating Instructions HYGROPHIL® H 4230-12 BA 060207
Mechanical data
Enclosure
Stainless steel enclosure; protection rating IP64 in accordance with DIN 40050
Dimensions
450410150 mm (without mount)
Assembly drill holes
347x330 mm, 47x13mm (M6)
Weight
Approx. 12.5 kg
Connections
Electrical connection
Screw terminals 0.5-1.5 mm2; cable feed via M 16x1.5 cable gland
Compressed air connection
G 1/4"
Gas sampling hose connec-
tion
G 3/8" (IP54) Universal conical nipple DKR DIN3863
Dimensions
Assembly drill holes