M&C MP Series User manual

Analytical Diaphragm Pump Series MP®
MP26-H1 heated at 180 °C
Instruction Manual
Version 1.00.02

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Dear customer,
Thank you for buying our product. In this manual you will find all necessary information about this M&C
product. The information in the manual is fast and easy to find, so you can start using your M&C prod-
uct right after you have read the manual.
If you have any question regarding the product or the application, please don’t hesitate to contact M&C
or your M&C authorized distributor. You will find all the addresses in the appendix of this instruction
manual.
For additional information about our products, please go to M&C’s website www.mc-techgroup.com.
There you can find the data sheets and manuals of our products in German and English.
This Operating Manual does not claim completeness and may be
subject to technical modifications.
© 11/2020
M&C TechGroup
Germany GmbH. Reproduction of this
document or its content is not allowed without permission from
M&C.
Version: 1.00.02

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Content
1General information .................................................................................................................... 4
2Declaration of conformity........................................................................................................... 4
3Safety instructions...................................................................................................................... 5
4Warranty ...................................................................................................................................... 5
5Used terms and signal indications ............................................................................................ 6
6Introduction................................................................................................................................. 7
7Description .................................................................................................................................. 7
8Technical data ............................................................................................................................. 8
8.1 Ambient conditions................................................................................................................. 8
9Flow characteristics.................................................................................................................... 8
10 Receipt of goods and storage ................................................................................................ 9
11 Installation instructions .......................................................................................................... 9
11.1 Mechanical........................................................................................................................... 10
11.2 Electrical Connections.......................................................................................................... 10
11.3 Pneumatic............................................................................................................................ 13
11.4 Hose-/tube connections ....................................................................................................... 13
12 Start-up .................................................................................................................................. 14
13 Closing down......................................................................................................................... 14
14 Maintenance........................................................................................................................... 15
14.1 Removing the diaphragm and valve plates........................................................................... 17
14.2 Cleaning .............................................................................................................................. 18
15 Trouble shooting ................................................................................................................... 19
16 Proper disposal of the device............................................................................................... 19
17 Spare parts list ...................................................................................................................... 20
18 Appendix................................................................................................................................ 20
List of illustrations
Figure 1 Flow characteristics MP26-H1 .........................................................................................8
Figure 2 Dimensions [mm and Inches] MP26-H1.........................................................................10
Figure 3 Electrical connection......................................................................................................12
Figure 4 Sectional drawing MP26-H1 ..........................................................................................16

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Head Office
M&C TechGroup Germany GmbH Rehhecke 79 40885 Ratingen Germany
Telephone: 02102 / 935 - 0
Fax: 02102 / 935 - 111
E - mail: [e-mail]
www.mc-techgroup.com
1 GENERAL INFORMATION
The product described in this instruction manual has been built and tested in our production facility.
All M&C products are packed to be shipped safely. To ensure the safe operation and to maintain the
safe condition, all instructions and regulations stated in this instruction manual need to be followed.
This instruction manual includes all information regarding proper transportation, storage, installation,
operation and maintenance of this product by qualified personnel.
Follow all instructions and warnings closely.
Read this manual carefully before commissioning and operating the device. If you have any questions
regarding the product or the application, please don’t hesitate to contact M&C or your M&C authorized
distributor.
2 DECLARATION OF CONFORMITY
CE - Certification
The product described in this operating manual complies with the following EU directives:
EMV-Instruction
The requirements of the EU directive 2014/30/EU “Electromagnetic compatibility“ are met.
Low Voltage Directive
The requirement of the EU directive 2014/35/EU “Low Voltage Directive“ are met.
The compliance with this EU directive has been examined according to DIN EN 61010.
Declaration of conformity
The EU Declaration of conformity can be downloaded from the M&C homepage or directly requested
from M&C.

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3 SAFETY INSTRUCTIONS
Observe the following general safety procedures when mounting, starting up or operating this
equipment:
Read this operating manual before starting up and use of the equipment. The information and warn-
ings given in this operating manual must be heeded.
Any work on electrical equipment is only to be carried out by trained specialists as per the regulations
currently in force.
Attention must be paid to the requirements of VDE 0100 (IEC 364) when setting high-power electrical
units with nominal voltages of up to 1000 V, together with the associated standards and stipulations.
Check the details on the type plate to ensure that the equipment is connected to the correct mains
voltage.
Protection against touching dangerously high electrical voltages:
Before opening the equipment, it must be switched off and hold no voltages. This also applies to any
external control circuits that are connected.
The device is only to be used within the permitted range of temperatures and pressures.
Check that the location is weather-protected. It should not be subject to either direct rain or moisture.
The device must not be used in hazardous areas.
Installation, maintenance, monitoring and any repairs may only be done by authorized personnel with
respect to the relevant stipulations.
4 WARRANTY
In case of a device failure, please contact immediately M&C or your M&C authorized distributor.
We have a warranty period of 12 months from the delivery date. The warranty covers only appropriate-
ly used products and does not cover the consumable parts. Please find the complete warranty condi-
tions in our terms and conditions.
The warranty includes a free-of-charge repair in our production facility or the free replacement of the
device. If you return a device to M&C, please be sure that it is properly packaged and shipped with
protective packaging. The repaired or replaced device will be shipped free of delivery charges to the
point of use.

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5 USED TERMS AND SIGNAL INDICATIONS
Danger
This means that death, severe physical injuries and/or important
material damages will occur in case the respective safety
measures are not fulfilled.
Warning
This means that death, severe physical injuries and/or important
material damages may occur
in case the respective safety
measures are not fulfilled.
Caution
This means that minor physical injuries may occur in case the
respective safety measures are not fulfilled.
Attention
This means that a material damage may occur in case the respec-
tive safety measures are not met.
Note
These are important information about the product or parts of the
operating manual which require user’s attention.
Qualified Personnel
These are persons with necessary qualification who are familiar with
installation, use and maintenance of the product.
High voltages!
Protect yourself and others against damages which might be caused
by high voltages.
Corrosive!
These substances destroy living tissue and equipment upon contact.
Do not breathe vapors; avoid contact with skin and eyes.
Wear protective gloves!
Working with chemicals, pointed objects or extremely high tempera-
tures requires wearing protective gloves.
Wear safety glasses!
Protect your eyes while working with chemicals or pointed
objects.
Wear safety glasses to avoid getting something in your eyes.
Wear protective clothes!
Working with chemicals, pointed objects or extremely high tempera-
tures requires wearing protective clothes.

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6 INTRODUCTION
The electrically heated diaphragm pump MP26-H1 is suitable for corrosive hot wet gases. It is con-
structed especially for gas transportation in hot wet gas analysis systems.
7 DESCRIPTION
All sample wetted parts of the pump MP26-H1 are made of PTFE. This makes the pump suitable for
hot wet applications with corrosive gases.
The pump works absolutely lubricant free. This means that the sample remains analytically un-
changed.
Due to a special diaphragm and valve system the pump operates maintenance-free.
The pump head is heated up by an aluminium heater body. It includes the heater cartridges (two each)
and the capillary sensor of the thermostat. The pump head has a metal cover with thermal insulation.
The set-temperature of 0 to 180 °C [32 to 356 °F] can be adjusted at the thermostat, located in the
terminal box beside the pump head. The thermostat has an excess temperature limiter which perma-
nently switches off the heating if the set temperature is exceeded by 30 °C [54 °F]. I this case the
heater must be reset by hand. The RESET button is located at the upper right side of the thermostat.
The thermostat has an low-temperature alarm which activates a contact if the temperature decreases
30 °C [54 °F] under the set temperature. This status alarm is located on the terminal strip as a poten-
tial-free switch over contact.
The motor is protected by a motor protection switch, which is installed in the terminal box as well. The
motor can be switched on and off by pressing the button ‘On/Off’ at the side of the terminal box. Exter-
nal switching of the motor is also possible with a potential free contact.
The MP26-H1 is available in 230 V or 115 V.
The standard MP26-H1 is designed for applications at a maximum gas flow of 10 l/min.
•Maximum temperature for medium during operating: -20 to +200 °C [-4 to 392 °F].
•The pump must be protected from the effects of dust and water.
•Before use please check the compatibility of the material.

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8 TECHNICAL DATA
Diaphragm pump
MP26-H1..
Part No.
02P1300
02P1305
Power supply
230 V,50 Hz
115 V,60 Hz
Degree of protection
IP44 DIN 40050
Capacity max.
10.0 l/min without pressure
Operating pressure
0.3 to 2.2 bar abs.
Sample temperature
-30 to +80 °C [-22 to 176 °C]
Ambient temperature
-10 to +40 °C [14 to 104 °C]
Storage temperature
-15 to +60 °C [5 to 140 °C]
Gas connections
RC 1/4" female
Electrical standard
EN 61010 Part 1
Material of sample wetted parts
PTFE
Weight
6.5 kg [≈14.3 lbs]
8.1 AMBIENT CONDITIONS
When the pump is in operation mode the following ambient conditions must be maintained:
•Ambient temperature during operating: -10 to + 40 °C [14 to 104 °C].
•The pump must be protected from dust and water.
•During operating an adequate supply of air for cooling must be provided.
9 FLOW CHARACTERISTICS
The following chart shows the performance of the diaphragm pump type MP26-H1.
0
100
200
300
400
500
600
700
800
900
1000
0,24 0,3 0,4 0,6 0,8 11.5 22.5
[l/hr]
20 °C
180 °C
[bar abs.]
Figure 1 Flow characteristics MP26-H1

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10 RECEIPT OF GOODS AND STORAGE
•Please take the sample pump and possible special accessories carefully out of the packaging
material immediately after arrival and compare the goods with the items listed on the delivery
note!
•Check the goods for any damage caused during delivery and, if necessary, notify your
transport insurance company without delay of any damage discovered.
Note
The equipment should be stored in a protected, frost-free room.
11 INSTALLATION INSTRUCTIONS
When installing the pump make certain that accident prevention regulations and safety instructions
including those for subsequent operation are observed. The safety instructions must be observed.
Note
The pumps must only be used for their intended purpose.
The pump must only be used in the conditions specified in the technical
data.
Specific safety instructions concerning sample must be observed.
The pump should be installed away from heat sources and freely venti-
lated to prevent any accumulation of heat.
The pumps have no protection against water. In this case, as far as it is
relevant, measures to protect the pump must be taken before start-up.
For outdoor installation, the pump must be installed in a housing pro-
tected from frost in the winter and sufficiently ventilated in summer.
Exposure to direct sunlight must be avoided.
The protection class of the pumps MP26-H1 is IP44.
Warning
It is
essential to provide protection for persons against contact with live
parts (e.g. electrical connections, motor windings) and moving parts
(e.g. fan). Protection against the entry of foreign bodies must also be
provided.
Note
Pumps have mechanical moving parts that can induce vibrations. To
prevent damages at the pump or at peripheral components/facilities as
well as minimizing noise development an appropriate vibration decou-
pling is necessary. For this M&C can deliver e.g. anti-vibration pads.
This explicit is also valid for the connection of the sample lines at the
pump head.

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11.1 MECHANICAL
•The dimensions of the mountings are given in Figure 2.
•The pump is provided for assembly and therefore it must be fastened with screws.
•Install the pump so that the fan can draw in sufficient cooling air.
•Install the pump so that accidental finger contact with the fan is impossible.
Figure 2 shows the dimensions of the diaphragm pump.
RC 1/4"
34 [˜ 1.3“]
Ø 6 [˜ 0.2“]
71 [˜ 2.8“]
300 [˜ 11.8“]
250
9.8“]
Ø 11 [˜ 0.4“]
90 [˜ 3.5“]
175 [˜ 6.9“]
60 [˜ 2.4“]
2
1
3
Dimension in mm
[Inches]
2 x PG13, 1 x PG9
Heater elements
Thermometer, indicator for 50 to 250 °C [122 to 482 °F]
Figure 2 Dimensions [mm and Inches] MP26-H1
11.2 ELECTRICAL CONNECTIONS
When making the electrical installation, shown in Figure 3, the safety regulations must be observed. In
particular make sure that the electricity supply is isolated before trying to connect the pump.
Warning
The diaphragm pumps type MP26-
H1 must not be used in hazardous
areas.
When connecting the equipment, please ensure
that the supply voltage
is identical with the information provided on the model type plate.
The supply voltage is only allowed to deviate max. +6 % respectively -
10 % from the indication on the model type plate.

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Note
Take ca
re that safety regulations are observed when connecting the pump to the
power supply.
Attention must be paid to the requirements of IEC 364 (DIN VDE 0100) when
setting high-
power electrical units with nominal voltages of up to 1000 V, together
with the associated standards and stipulations.
Check the details on the type plate to ensure that the equipment is connected up
to the correct mains voltage.
A main switch and matching fuse must be provided externally (EN 60335-1).
For electrical details see technical data.
1. Remove the lid of the connection box. The electrical connection layout is located in the lid.
2. Insert the mains cable (min. 3 x 1.5 mm²) through the threaded cable gland and connect to the
appropriate terminals (see Figure 3).
3. Insert the signal cable through the treaded cable connection and connect to the appropriate
terminals (see Figure 3).
4. Screw lid back on.
Note
The earth-wire (ground) must be connected to the motor.
The pump must be installed so that contact with live parts (connections, possibly
windings) is impossible.
Figure 3 shows the electrical connection of the diaphragm pump.

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Sensor
9
'
L
L
N
Reset
0-180°C
To>+30°C
Power
100 W 100 W
M
230 V 50 Hz
115 V 60 Hz
8
5
6
7
Tset
4
3
2
1
Tu<-30°C
10
11
12
Status contact
(External contact to switch pump motor OFF)
I>
1.5 A
ON
Figure 3 Electrical connection

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11.3 PNEUMATIC
Note
Components connected to the pump must be designed according to the pneumatic
performance of the pump (see technical data).
The pump must only be used in the conditions specified in the technical data.
1. Remove the protection plugs from the port threads (thread size RC 1/4” female).
2. Accessories like temperature resistant hose connections are screwed into the port threads by
sealing tape.
3. Connect the suction and pressure heated lines.
11.4 HOSE-/TUBE CONNECTIONS
The gas inlet and outlet hoses/tubes are connected on the top of the pump. Standard RC 1/4" female
threaded joints are available for the connection of the gas sample lines.
Note
The valve body must be fixed while mounting the fittings because moving may
change the pump capacity.
Do not confuse hose-/tube connections for sample gas inlet and outlet; the con-
nections are labelled accordingly!
Check for tightness of all sample lines after connection!
The
tightness of the connections can only be guaranteed if the end section of the
connection hose/tube is flat (use a hose-cutter)!
When connecting the sample gas supply hoses or tubes to the corresponding threaded connections,
pay attention to the following points:
1. Loosen the sleeve nut of the clamping-ring threaded joint by turning to the left. Take care that
the nut is removed carefully from the body of the threaded joint to avoid losing the clamping
ring which is mounted loose in the nut.
2. Push the sleeve nut over the connection hose/tube.
3. Push the clamping ring onto the connection hose/tube with the thicker bulge pointing to nut.
4. Push the hose/tube onto the supporting nipple in the threaded joint.
5. Tighten the sleeve nut by hand.
The hose/tube is now mounted in such a way that it cannot slip and is resistant to pressure.
The appropriate tube or hose threaded joint connections are available optionally from M&C.

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12 START-UP
Specific safety instructions for media being handled must be observed.
Before pumping a medium, the compatibility of materials of pump head, diaphragm and valves with the
medium must be checked (for pump materials: see chapter 8 technical data).
Observe before initial start-up:
•The pump must not start against pressure or vacuum. When it is switched on the pressure in
the suction and pressure lines must be atmospheric. This must be so even when the pump re-
starts after the power has been cut off for a short period.
•The maximum permissible operating pressure (see chapter 8 technical date) must not be ex-
ceeded, even when the flow is restricted.
•To prevent the maximum permissible operating pressure being exceeded, restriction or control
of the air or gas flow should only be carried out in the suction line.
•If restriction or control of the air or gas flow is made on the pressure side ensure that the max-
imum permissible operating pressure is not exceeded.
•When the pump is at a standstill the inlet and exhaust must be at normal atmospheric pres-
sure.
•Diaphragm and valve plates are the only parts subject to wear. Wear is usually indicated by a
drastic reduction in the pneumatic performance. When replacing parts proceed as described in
chapter 15.1.
•Ambient conditions: see technical data.
For start-up follow these steps:
1. Push motor protection switch that the button is moving out.
2. Switch on mains power supply.
The total heating-up time is approximately 1 hour. After approximately 30 minutes the pump tempera-
ture exceeds the low-temperature alarm (30°C below rated value). After these another 30 minutes are
needed to reach the operating temperature.
3. The motor can be started after pushing the motor protection switch (button is moving in).
13 CLOSING DOWN
Note
The area in which the pump is situated when not in use must be kept free of frost
at all times.
If the pump is putting out of action for a short time no particular measures need to be taken.

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14 MAINTENANCE
Observe the plant- and process-specific safety measures before carrying out maintenance work.
Warning
It is necessary to take the pump off the mains before any assembly,
maintenance or repair work is carried out!
Wait until the temperature is low enough to do maintenance.
Diaphragm and valve plates are the only parts of the pump subject to wear. They are easy to change.
Warning
Aggressive medium is possible.
Wear protective glasses and proper protective clothing during disas-
sambly, repair or cleaning!

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Figure 4 Sectional drawing MP26-H1
Parts and tools required:
•Valve plates, sealing rings (2 for each pump head) and structured diaphragm(s)
•Screwdriver No. 1
Note
Always change valve plates, diaphragm and sealing rings at the same time.
The diaphragm(s), valve plates and sealing rings must be replaced in the sequence described in
chapter 14.1.
Valve, induction side
Valve, pressure side

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14.1 REMOVING THE DIAPHRAGM AND VALVE PLATES
Remove the heater assembly from the pump head:
1. Unscrew the knurl nuts at the top of the pump head and take the cover off.
2. Unscrew each of the 2 hexagon head screws on the bottom plate of the pump head and re-
move the complete heating device from the pump head.
Replace the diaphragm, O-rings and valve plates:
1. Mark the position between housing Adiaphragm Band pressure plate C;
2. Loosen the 6 hexagon screws Dand remove the pressure ring E;
3. Loosen the valve body Fand G;
4. Loosen the 4 hexagon screws Hand remove the pressure plate Cand the diaphragm head B;
5. Unscrew the diaphragm Kby hand out of the tapping hole of the rod L(counter-clockwise);
6. Loosen the 4 screws Mand remove the cover N;
7. Screw the new diaphragm Kinto the rod Lhand-tight;
8. Turn the flywheel Puntil the rod Lis in a central Position. Control that the bulge of the dia-
phragm Kfits to the groove of housing A;
9. Fix the diaphragm head Band the pressure plate Caccording to the mark;
10. Fix the 4 hexagon screws Hconstantly over cross until the plate springs Rare fIat;
11. Turn the flywheel Pand check whether it works proper;
12. Mount the cover N;
13. Change the 0-ring Sat the valve body Fon the pressure side;
14. Change the valve plate T. Check whether the protection ring Uis in the right position and the 6
layers of the valve plate Tpoint to the top;
15. Screw in the valve bodies Fand tighten them in a moderate way;
16. Change the 0-ring S on the sucking side;
17. Remove the valve plate Tand change it with a new one. Check whether the protection ring Uis
in the right position and the 6 Iayers of the valve plate Tpoint to the bottom;
18. Screw in the valve bodies Gand tighten them in a moderate way;
19. Put on the pressure ring Eand tighten the 6 hexagon screws.

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14.2 CLEANING
•When changing valve plates and diaphragm, inspect all parts for dirt before assembling the
pump head and clean them if necessary.
•As far as possible clean the parts with a dry cloth. Solvents should not be used as they can at-
tack the plastics and synthetic rubber parts. If a compressed air line is available, blow the parts
out with it.
Warning
Aggressive medium is possible.
Wear protective glasses and proper protective clothing during disas-
sambly, repair or cleaning!
For recommended spare parts please see chapter 17.

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15 TROUBLE SHOOTING
Before working on the pump isolate the power supply securely, then check that the lines are not live.
The following tips for fault-finding are best employed in the sequence shown.
Problem/indication
Possible cause
Action/Check
Pump produces no
flow
No main supply.
Check power supply. Check plug for correct
fit.
Connections or lines are
blocked.
Remove blockade.
An external valve is closed
or a filter is blocked.
Open valve or clean blocked/dirty filter.
Liquid (condensate) has
collected in the pump head.
Let the pump for a few minutes pumping air.
Flow, pressure or
vacuum too low
Diaphragm or valves are
weared out.
Change diaphragm or/and valves.
Compare the actual perfor-
mance with the figures in the
technical data.
The pump is not designed for this condition.
There is pressure on the
pressure side and at the
same time vacuum or a
pressure above atmospheric
on the suction side.
The pump is not designed for this condition.
The cross-section of pneu-
matic lines or connected
components is too small, or
they are restricted.
To measure the performance, disconnect the
pump from the system (smaller diameter
tubing or a valve can significantly affect per-
formance).
A leak at a connector, in a
line or in the pump head.
Insulate the leak, tighten the screws, clean or
exchange dirty parts.
Note
If the pump does not operate properly and you can not find any of the above-
mentioned faults, send it back to M&C.
If you send the pump for repair,
please include information about the medium it
was handling.
In particular, if it was handling aggressive substances our engineers must be
informed.
If you have been handling dangerous or highly aggressive gases please clean the
pump before despatch.
16 PROPER DISPOSAL OF THE DEVICE
At the end of the life cycle of our products, it is important to take care of the appropriate disposal of
obsolete electrical and non-electrical devices. To help protect our environment, please follow the rules
and regulations of your country regarding recycling and waste management.

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17 SPARE PARTS LIST
The replacement interval for spare parts and consumables depends on the specific operating condition
of the pump. The quantities recommended in the following table are based on experience. Your re-
placement intervals will be based on your operating conditions.
Diaphragm sample pump
Type MP26-H1
(C) consumable parts, (R) recommended spare parts, (S) spare parts
Recommended quantity
Being in operation [years]
C/R/S
1
2
3
90P5000
Diaphragm material: PTFE
C
1
2
3
90P5010
O-ring 25
C
1
2
3
90P5005
Valve plate1 pc., Material: PTFE (required 2 pc.)
C
2
4
6
90P5025
Valve body type C/D 1/4” i, PTFE 1 pc. (required
2 pc)
R
2
2
2
90P5015
Heater cartridge 230 V,50 Hz, 100 W
R
2
2
2
90P5016
Heater cartridge 115 V,60 Hz, 100 W
R
2
2
2
90P5020
Thermostat 0 to 180 °C [32 to 356 °F], with low
temp. alarm and over temp. limiter
R
1
1
1
18 APPENDIX
Further product documentation can be seen and downloaded from our home page:
www.mc-techgroup.com