AMTRON R X-50

Mounting and operating instructions 

AMTRON R○ X-50 Serie-Nr. 

BMEE [Internet version] 

Please help to ensure a long reliable service of this heat meter by carefully installing it according to the instructions. 

VD 3-248 e 03.2006 

These instructions are to be given to the user or leave them near the device! 

M10000def.doc 

9, 2006 

November

Mounting and operating instructions AMTRON R○ X-50 

Contents 

Intended use . . . . . . . . . . . . . . . . . 3 

Installation instruction . . . . . . . . . . . . . . . 3 

View of the unit . . . . . . . . . . . . . . . . . 8 

Operating instructions . . . . . . . . . . . . . . . 9 

Display . . . . . . . . . . . . . . . . . 9 

Operating modes . . . . . . . . . . . . . . . . 9 

Explanations . . . . . . . . . . . . . . . . . 10 

Main loop . . . . . . . . . . . . . . . . . . 11 

INFO loop (Information) . . . . . . . . . . . . . . . 12 

Instant loop . . . . . . . . . . . . . . . . . 12 

Time loop . . . . . . . . . . . . . . . . . . 13 

Stich loop (billing date) . . . . . . . . . . . . . . . 13 

Logger loop . . . . . . . . . . . . . . . . . 14 

Inputs loop . . . . . . . . . . . . . . . . . 14 

Units loop . . . . . . . . . . . . . . . . . . 16 

M-Bus loop . . . . . . . . . . . . . . . . . 18 

CONFIG loop (Configuration) . . . . . . . . . . . . . . 18 

System loop . . . . . . . . . . . . . . . . . 20 

Editing methods . . . . . . . . . . . . . . . . 20 

Number entry . . . . . . . . . . . . . . . . 20 

Date entry . . . . . . . . . . . . . . . . . 21 

Time entry . . . . . . . . . . . . . . . . . 21 

Commissioning . . . . . . . . . . . . . . . . 21 

Commissioning . . . . . . . . . . . . . . . . 21 

Function control . . . . . . . . . . . . . . . . 21 

Error messages, alarms . . . . . . . . . . . . . . . 22 

Data back-up . . . . . . . . . . . . . . . . . 22 

Recalibration/auditing . . . . . . . . . . . . . . . 22 

Procedure . . . . . . . . . . . . . . . . . 22 

Audit modules . . . . . . . . . . . . . . . . 23 

Technical data . . . . . . . . . . . . . . . . . 23 

Mounting template . . . . . . . . . . . . . . . . 27 

VD 3-248 e 03.2006 2 Aquametro AG

AMTRON R○ X-50 Mounting and operating instructions 

Intended use 

The device is to be used in dry interior areas. For applications in Ex areas or in contact with water or other liquids no 

liability can be assumed. 

Installation instruction 

The installation may only be carried out by authorised experts in accordance with valid regulations (EN1434 Part 6 Regulations 

and Recommendations for Installation and Operation) and/or the recommendations of specialist organisations 

(such as the AGFW series Codes of Practice for District Heating. 

Important: 

The totaliser, the paired sensors and the flow meter of a measuring point are to be compatible with one another 

and should not be replaced. 

Verified instruments are lead sealed. These seals should not be damaged or broken in any way. 

Measuring instruments have to be treated with caution. To protect from damage and contamination, the packing should 

be removed just before installation. 

Verify, if the sensor (e.g. Pt500) is suitable for the calculator. Pay attention to the correct installation side (warm 

side, cold side) of the flow meter. 

Verify the pulse value of the flow meter and the totaliser according to the labels. Pay attention to the flow direction 

of the flow meter. 

Verifiable parameters or other service parameters can only be changed in the field if the instrument is not a verified unit. 

Documentation is available on request. 

Aquametro AG 3 VD 3-248 e 03.2006


Scope of supply; needed mounting material and tools 

1) Option 

Open casing 



Mounting on DIN rail (Mounting template, see attachment) 

Mounting on flat wall (Mounting template, see attachment) 



Terminal assignments see inside cover 

Terminal assignments 



Connect signal cables and where appropriate connect the low voltage supply 

Close cover Remove sealing studs 

These instructions are to be given to the user or leave them near the device! 



View of the unit 

0. Cover 

1. Liquid Crystal Display (LCD) 

2. Enter key 

3. Select key 

4. Sight glass, if verified with calibration mark 

5. Optical M-Bus interface 

6. Service key 

7. Programming key under seal 

8. Nameplate of totaliser module 

9. Cover screws (under sealing studs) 

10. Mounting holes 

11. Clip-on holder for rail mounting 

12. Cover hinge 

13. Plug-in totaliser module 

14. Connector module 

15. Cable entry Ø12 mm with plastic seal 

16. Cable entry Ø16 mm with plastic seal 

17. Options module 



Operating instructions 

Display 

1. Tag, 3 characters 

2. Numerical display with 8 large characters 

3. Decimal point numbers are highlighted within a frame 

4. Units 

5. Unit in User Mode 

6. Unit in Service Mode 

7. Edit Mode: displayed values can be altered 

8. Alarm 

9. No function 

10. Flow display, flashes when flow is registered 

11. Symbol for values in memory (billing date or logger) 

12. Select key 

13. Enter key 

Operating modes 

With the operating keys all relevant settings (depending the Operating mode) to be carried out. 

User Mode: 

When the housing is closed, freely accessible data can be shown in the display using the keys. Service Mode: 

This can be activated by pressing the service key when the cover is open. It also enables all necessary but non-verifiable 

start-up parameters to be set and displayed. 

Programming Mode: 

This can be activated only if the factory seal has been destroyed. This enables the complete range of settings, including 

calibrated values to be made. 



Explanations 

S-Edit 

P-Edit 

E 12345678 kWh 

INFO 

E 12345.678 kWh 

E 12.345678 kWh 

Prog 

Prog 

Edit 

Memory 

Press Select key 

Press Enter key 

Press Service key 

Press Programming key (under seal) 

Unit in User Mode 

Unit in Service Mode 

Unit in Program Mode, only possible if the seal is 

destroyed 

Example for a display 

Display under certain conditions 

Unit in Edit Mode 

Display of logger data and billing readings 

Press Select and Enter keys simultaneously: 

3 more decimal places will be shown 

Edit in Service Mode: 

- Press Service key 

- Press Enter key 

- Entry according to type of data 

Edit in Programming Mode: 

- Press Service key 

- Press Enter key 

- Entry according to type of data 



Main loop 

The main loop shows the most important readings and provides access to subloops. 

High accurate readings can also be displayed when both keys are pressed simultaneously. 

The meter readings of the calculator can be adjusted to external counters in Service- or Program-Mode. Changes in 

Program-Mode can only be changed if the instrument is not a verified unit. 

E 12345678 kWh 

V 12345678 m3 

H2 12345 .678 m3 

H3 12345 .678 m3 

ImP 100 L 

Sid cold 

INFO 

InStAnt 

tIME 

Stich 

LOGGEr 

InPutS 

OutPutS 

UnitS 

M-bUS 

CONFIG 

SYStEM 

LCD 

Test 

/ 

P-Edit 

/ P-Edit 

/ S-Edit 

/ S-Edit 

Energy 

Volume 

Auxiliary meters 2 

Auxiliary meters 3 

Pulse value 

Installation side 

Error messages 

Display test 

Instantaneous values 

Time parameters 

Billing date 

Logger data 

Input signal parameters 

Output signal parameters 

Units 

M-Bus parameters 

Configuration parameters 

Manufacturing parameters 



INFO loop (Information) 

Errors or alarms are shown in the INFO loop. These are only shown if the trigger status is reached. 

Errors have to be fixed. Alarms are shown as long as they are present. 

INFO 

Instant loop 

th-ERROR 

tc-ERROR 

SYSt-Err 

th-ALArM 

tc-ALArM 

dt-ALArM 

The Instant loop shows the current values. 

InStAnt 

Th 60.0 °C 

Tc 40.0 °C 

∆T 20.00 °C 

P 0.025 MW 

Q 6.5 m3/h 

KF 1.156 

DEN 0.991 KG/L 

Sensor error on hot side 

Sensor error on cold side 

Error in totaliser 

Temperature on hot side out of measuring range 

Temperature on hot side out of measuring range 

Temperature difference out of measuring range 

Temperature on hot side 

Temperature on cold side 

Temperature difference 

Power 

Volume rate 

C-Factor 

Density of fluid 



Time loop 

Time relevant data can be displayed and adjusted. 

tIME 

DAT 01.06.03 

TIM 08:15 

Hr 1234 h 

Err 0 h 

SEA WintEr 

St1 30.06.-- 

St2 31.12.-- 

Stich loop (billing date) 

Display the memorised billing dates 1 or 2 . 

Note: Billing dates can be set in the Time loop. 

Stich 

Memory 

Nr. 2 

Nr. 1 

Memory 

Memory 

DAT 01.07.03 

Memory 

E 12345678 KWh 

Memory 

V 12345.678 m3 

Memory 

H2 12345.678 m3 

Memory 

H3 12345.678 m3 

Memory 

Err 0 h 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

Date 

Time 

Operating hours 

Hours of error 

Summer- or wintertime 

Billing date 1 

Billing date 2 

Memory number 

Date of billing 

Energy reading on billing date 

Volume flow reading on billing date 

Reading of auxiliary counter 2 on billing date 

Reading of auxiliary counter 3 on billing date 

Hours of error till billing date 



Logger loop 

This operating loop enables values in the data logger to be read. 

Note: The logging intervals can be set in Service-Mode [S-Edit] in the display PER. 

LOGGEr 

Memory 

PER InActive 

Memory 

PER Month 

Inputs loop 

Memory 

Memory 

Memory 

Nr. nn 

Nr. 2 

Nr. 1 

Memory 

PER Month 

Memory 

DAT 01.07.03 

Memory 

E 12345678 KWh 

Memory 

V 12345678 m3 

Memory 

H2 12345678 MWh 

Memory 

H3 12345678 MWh 

Memory 

P 0.032 KW 

Memory 

Err 0 h 

Memory 

PER InActivE 

Memory 

PER Month 

Memory 

PER 2 dAY 

Memory 

PER 1 dAY 

Memory 

PER Hour 

S-Edit 

S-Edit 

Selection of memory file (1 … 31) 

Period of billing 

Date of capture 

Energy reading on capture date 

Volume flow reading on capture date 

Reading of auxiliary counter 2 on capture 

date 

Reading of auxiliary counter 3 on capture 

date 

Maximum power during capture period 

Hours of error during capture date 

Inactive, no logging 

Monthly logging 

Logging every two days 

Daily logging 

Hourly logging (not for battery calculator) 

Remove the totaliser module and check that option board is correctly mounted and that the selector switch(es) is/are 

set to Position "In". Carry out the settings of the pulse input. 

The adjustments of the auxiliary inputs (No. 2 and No. 3) have an effect only if they are physically available. 

The auxiliary inputs (No. 2 and No. 3) can be set in the Service Mode [S-Edit] . 

Note: Before adjusting the pulse value, you have to choose the unit in the units loop. 

Settings of the main input (No.1) are verifiable. They can only be changed if the seal is broken [P-Edit]. 



Data in a grey field will not be displayed in User-Mode. 

InPutS 

Sid cold 

InPutS 

Nr. 3 

Nr. 2 

Nr. 1 

Fct VOLUME 

ImP 1.000 L 

Sid cold 

F 10 Hz 

STA ON 

MAX 153.0 °C 

MIN 0.0 °C 

Sid cold 

Sid hot 

P-Edit 

P-Edit 

Nr. 1 

Nr. 3 

Nr. 2 

Fct HELP 

ImP 1.000 L 

F 10 Hz 

STA ON 

Input number (1) 

Volume impulse 

Pulse value 

Installation side of the flow meter 

Maximum input frequency 

ON: Contact closed 

Off: Contact open 

Permissible maximum temperature 

Permissible minimum temperature 

Built in cold side 

Built in warm side 

S-Edit 

Input number (2 & 3) 

Auxiliary input 

Value of a pulse 

Maximum input frequency = 10Hz 

ON: Closed contact 

Off: Open contact 



Units loop 

It is possible to choose the presentation of the variables (units and number of decimal places) in the Units loop. 

IMPORTANT: 

These settings apply to all pulse in- and outputs. They limit the option for setting the pulse value (see Input loop) 

UnitS 

E 1 KWh 

V 0.01 m3 

E 1 KWh 

V 0.01 m3 

H2 1 HCA 

H3 1 HCA 

P MW 

Q m3/h 

T °C 

EP Pro PULS KWh 

VP Pro PULS L 

0.001, 0.01, 0.1, 1 kWh 

0.001, 0.01, 0.1, 1 MWh 

0.001, 0.01, 0.1, 1 MJ 

0.001, 0.01, 0.1, 1 GJ 

P-Edit 

P-Edit 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

P-Edit 

0.001, 0.01, 0.1, 1 KBT=kBtu 

0.001, 0.01, 0.1, 1 MBT=MBtu 

0.001, 0.01, 0.1, 1 m3 

0.1, 1 GAL=USgal 

Unit and decimal places of the display 




Unit of the power display 

Unit of the flow rate display 

Unit of the temperature display 

Unit of the energy pulse 

Unit of the volume pulse 

Possible settings 




H1, 2, 3 1 HCA 

P MW 

Q m3/h 

T °C 

EP Pro PULS KWh 

VP Pro PULS L 

M2040def.doc 

1 HCA 

0.001, 0.01, 0.1, 1 kWh 

0.001, 0.01, 0.1, 1 MWh 

0.001, 0.01, 0.1, 1 MJ 

0.001, 0.01, 0.1, 1 GJ 

0.001, 0.01, 0.1, 1 m3 

0.001, 0.01, 0.1, 1 t 

0.1, 1 GAL=USgal 

0.001, 0.01, 0.1, 1 KBT=kBtu 

0.001, 0.01, 0.1, 1 MBT=MBtu 

KW 

MW 

MJ/h 

GJ/h 

KB/h=kBtu/h 

MB/h=MBtu/h 

m3/h 

GA/h=USgal/h 

°C 

°F 

KWh 

MJ 

KBT=kBtu 

mL 

L 

GAL=USgal 

m3 









M-Bus loop 

The following variables are shown or set in the M-Bus loop: 

M-bUS 

Nr 1, 2 bAud 2400 

Adr 0 ... 250 

Nr 1 bAud 2400 

Nr 2 bAud 2400 

Ac1 0...255 

Ac2 0...255 

bAud 300 

bAud 2400 

CONFIG loop (Configuration) 

S-Edit 

S-Edit 

S-Edit 

The following variables are shown or set in the configuration loop: 

CONFIG 

SMU 1.55 K/°R 

Rem 60 s 

Ftr 1 

Loc USEr 

S-Edit 

S-Edit 

S-Edit 

S-Edit 

RES CANCEL S-Edit 

SMU 1.55 K 0 ... 2.99 K/°R S-Edit 

Primary M-Bus address 

Baud rate for M-Bus (function, when card is present) 

Baud rate for M-Bus (Opto & M-Bus #2 card) 

Number of accesses over M-Bus 1 

Number of accesses over M-Bus 2 

Possible baud rates 

∆T, low flow cut off 

Rem = time of display of instantaneous values 

Filter-number (0 … 20) 

Activated operating mode (lock level) 

Reset of alarms and counters 

Temperature difference below which no further energy is 

counted. 

The unit for ºC is K and for ºF it is ºR 



8 ... 240 s 

Rem 60 s S-Edit 

60 ... 240 s 

Ftr 1 0 ... 20 

S-Edit 

Rem = time of display of instantaneous values (flow, 

power) after reception of the last impulse (in s) . If 

the time between two pulses is exceeded then the 

present values are shown as 0. 

8 … 240 s for a mains totaliser and 

60 … 240 s for a battery totaliser 

Filter value for the calculation of the current value 

The higher the value, the higher the delay time Tv for the average calculation. 

Larger Tvs are to be set if the input pulses are received at irregular intervals, otherwise the flow display will 

fluctuate too much. 

Approximation formula: 

Tv = (Filter value +1)*5* cycle time (20 s for battery version, 1 s for mains version). 

Loc USEr 

USEr 

SErvICE 

ProGrAM 

Possibilities User Service Program 

No 

Non verifiable data X X 

All parameters — X 

RES CANCEL 

CANCEL 

ALArM 

CountEr 

Mode User Service Program 

Cancel X X X 

Reset Alarm X X 

Reset Counter X 

M2350e 

No settings possible 

No settings for verifiable parameters 

Verifiable parameters are adjustable 

Reset of alarms and counters according the 

authorization in the table below 



System loop 

The following values can be displayed in the system loop: 

SYStEM 

Editing methods 

FNr 12345678 

SYS H-50 

DAT 18.12.05 

FW 1.05.00 

HW 2.01.10.00 

Fabrication No. of the instrument 

Version of the device 

Date of manufacture 

Firmware version 

Hardware version 

The following examples show the editing methods in Service mode [S-Edit]. 

For non calibrated totalisers it is possible to adjust values, digits and sign (+/-) in Program mode [P-Edit] too. 

Number entry 

If it is possible to adjust a (multi-) digit in an operating loop, then follow the procedure in the graphic bellow: 

S-Edit 

ImP 1.000 kWh 

ImP 0001.000 1 

ImP 0001.000 2 

ImP 0001.000 7 

Activate Service Mode with Service key 

Press Enter key to enter in Edit mode 

Adjust the digit (1) with the Select key 

Change to next digit (2) with the Enter key 

Adjust the digit with the Select key 

: 

: 

Change to last digit (7) with the Enter key 

Adjust the digit with the Select key 

Finish the entry with the Enter key 

The values and digits can be adjusted in their possible range from 1 to 8 digits between 0 and 9. Partly the sign (+/-) 

can be set. 



Date entry 

S-Edit 

DAT 01.06.03 

Time entry 

S-Edit 

TIM 08:15 

Commissioning 

Commissioning 

DAT 01.06.03 Y 

DAT 01.01.05 m 

DAT 01.07.05 d 

TIM 08:15 m 

TIM 08:15 h 



Adjust the year (y) with the Select key 

Change to next entry field (m) with the Enter key 

Adjust the month with the Select key 

Change to next entry field (d) with the Enter key 

Adjust the day with the Select key 




Adjust the minutes (m) with the Select key 

Change to next entry field (h) with the Enter key 

Adjust the hours with the Select key 


• Check the electrical connections. 

• Switch on supply. Press any key to activate the display of the battery totaliser. 

• If an error is displayed, the problem has to be solved ( see Information loop). 

• Press the select key till you reach the „ImP“ display and control the pulse value. 

• Press the select key till you reach the „Sid“ display and control the installation side of the pulse transmitter. 

• The baud rate and the M-Bus address of the M-Bus interface(s) can be set in the M-Bus loop. 

• Close the housing after commissioning and secure the screws with the sealing studs (see installation instructions). 

• These instructions are to be given to the user or leave them near the device! 

Function control 

• Check the unit of the main input, respectively adjust the auxiliary inputs if used (see Units loop) . 

• Check the pulse value of the main input, respectively adjust the auxiliary inputs if used (see Input loop) . 

• Check the date and the time, respectively adjust it (see Time loop) . 

• With existing flow the wave symbol top left in the display is flashing. 

• Check the current values of the running installation, if plausible values are shown (see Instant loop). 

• In the Config loop the reset time (to zero) of the display and the filter properties of the current values of Q and/or 

P can be adjusted. 



Error messages, alarms 

In case of failure the message “alarm” is displayed overlaying the numbers in the display. The cause for the error can 

be found in the Information loop based on a short message. 

Message Error / Alarm Possible cause Action 

th-ERROR Error temperature 

warm side, no 

measurement is 

possible 

tc-ERROR Error temperature cold 

side, no measurement 

is possible 

SYSt-Error Memory problem 

EEPROM 

th-ALArM Temperature warm 

side outside the 

permissible measuring 

range 

tc-ALArM Temperature cold side 

outside the permissible 

measuring range 

dt-ALArM Temperature 

difference outside the 

permissible measuring 

range 

Data back-up 

The device data is saved in the EEPROM as follows: 

• Wrong installation of the 

sensor 

• Disconnection/ short 

circuit of the sensor 

cables 

See above See above 

• Control the wiring 

• Control the disconnected 

sensor cables with an 

Ohmmeter 

• If OK control the input 

with a resistor: 

Pt 100 100 - 150Ω 

Pt 500: 500 - 620Ω 

Component-/ device problem Send back device for an 

inspection 

Temperature of the heating Check the actual 

circuit is to high or to low temperature in the menu 

InStAnt with the temperature 

in the menu InPutS 

See above See above 

• Temperature difference of 

the heating circuit is to 

high or negative 

• Problem of the sensor 

• Battery unit: once a day (23.59) 

• Mains unit: All data remains on power failure when the internal battery is present. 

• Mains unit: If the internal battery is missing: every complete hour. 

Recalibration/auditing 

Check the actual 

temperature difference in the 

menu InStAnt with the 

temperature in the menu 

InPutS 

A data logger (EEPROM), in which important settings are stored, is located on the terminal module of the totaliser. This 

configuration memory simplifies recalibration and auditing of the unit. 

A replacement unit with the correct calibration (verification) parameters (pulse value, mounting side, etc.) has just to be 

plugged in. Other parameters do not have to be re-entered. The field wiring remains connected. 

Procedure 

Calibrated instruments are to be returned to the factory for recalibration once the expiry date has passed. 

The device has the advantage that only the totaliser module has to be returned. The field wiring can remain connected. 

Due to the integrated configuration memory in the connecting board, the measuring point data remain (this does not 

apply to calibration data) . 



Audit modules 

Returning this module for recalibration usually takes about 5-10 days. 

This is speeded up for audit modules. 

Technical data 

CE Standards 

Norms 

Housing, operating conditions 

Dimensions 

Weight, depending the configuration 

Weight packed, depending the configuration 

Ambient temperature 

Storage temperature 

Optical interface 

Measurement 

Error limits better than 

Temperature measuring range: 

Temperature difference: 

Temperature sensor 

Type of sensor connection 

Sensor cable, length tested and certified till 

Display 

Display units 

Display capacity Post decimal positions 

89/336/EWG, 92/31/EWG, 93/68/EWG 

EN 1434, EN 55081-1, EN 50082-2, EN 61010 

120 x 163 x 49 mm 

380 … 470 g 

500 … 610 g 

+ 5... +55 °C, EN 1434 class C 

0 °C ... 60 °C 

IEC 870-5, M-Bus 

EN 1434-1 

5 °C ... 150 °C 

3 K ... 145 K 

Pt 500 , IEC 751, paired 

Two wire technology, no short-circuit bridges 

required 

10m 

kWh, MWh, MJ, GJ, kBtu, MBtu 

m 3 , USgal 

kg, t 

88'888'888 0, 1, 2, 3 



Totaliser 

Battery supply 

Battery life in years 

at ambient temperature 

Supply with safety extra-low voltage 

Counting cycle 

Temperature measuring 

Data protection 

Impulse input 

Terminal block designation 

Maximum frequency 

Minimum impulse length 

Minimum length of a break 

External wiring 

Impulse auxiliary input 

Terminal block designation 

Maximum frequency 

Minimum impulse length 

Minimum length of a break 

External wiring 

M3340e 

Lithium CR174705E 3 V, 2.5 Ah 

≥ 10, with connected M-Bus 

≤ 45ºC 

12 ... 24 VDC ±10 %, (M-Bus) 

20 s 

60 s 

EEPROM, once a day 

10/11 

10 Hz, 3V / 2.2MΩ 

6 Hz at a duty cycle 50% 

≥ 8 ms 

≥ 80 ms 

Open Collector transistor or mechanical contact 

100/101, 102/103 

10 Hz, 3V / 2.2MΩ 

6 Hz at a duty cycle 50% 

≥ 8 ms 

≥ 80 ms 

Open Collector transistor or mechanical contact 



Notes: 



Notes: 



Mounting template 


Aquametro AG Aquametro SA Aquametro Aquametro Aquametro s.r.o. 

Messtechnik GmbH BELGIUM SPRL 

Ringstrasse 75 Rue du Jura 10 Zum Panrepel 24 Dallaan, 67 Prosecká 811 / 76a 

CH-4106 Therwil CH-1800 Vevey D-28307 Bremen B-1933 Sterrebeek CZ-190 00 Praha 

Tel. 061 725 11 22 Tel. 021 923 51 30 Tel. 0421 / 871 64-0 Tel. 02 / 241 62 01 Tel. 02 / 86 88 77 78 

Fax 061 725 15 95 Fax 021 922 58 44 Fax 0421 / 871 64-19 Fax 02 / 216 22 63 Fax 02 / 86 88 95 59 

info@aquametro.com info@aquametro.com info.amd@aquametro.com info.amb@aquametro.com info.amc@aquametro.com

AMTRON R X-50

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