Bass EMD-RM Series Quick guide

EMD-RMTR.. User’s Manual
1
Installaton and Instructon
Manual
“Transmtter”
Electromagnetc Flowmeter
Type : EMD-RM...
Rv : 01

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Contents
1.General............................................... 3
2.Installaon.......................................... 3
3.Basic Circuit......................................... 9
4.Specificaons...................................... 10
5.Operaon and Setup........................... 11
6.Parameters and Setng....................... 12
7.Alarms.................................................. 22
8.Troubleshoong.................................. 22

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1. General
1.1. Intended Use
The electromagnetic flowmeters are designed exclusively to measure the flow and conducvity
of electrically conducve, liquid media.
1.2. Cerficaon
The device fulfils the statutory requirements of the following EC direcves:
• Low Voltage Direcve 2006/95/EC
• EMC Directive 2004/108/EC
• EN 61010
• EMC specification acc. to EN 61326/A1
The manufacturer cerfies successful tesng of the product by applying the CE marking.
2. Installaon
2.1 Dimension and mounng
mm
A B C D
214 164 234 70
300 mm
300 mm

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2.2 Terminal Wiring
Funcon Symbol Descripon
Pulse Output POUT Frequency (pulse) output
PCOM Pulse output Ground
Alarm Output ALMH Alarm Output for Upper Limit
ACOM Alarm Output Ground
Alarm Output ALML Alarm Output for Low Limit
ACOM Alarm Output Ground
RS485 (Optional) TRX+ Communicaon RS485+
TRX- Communicaon RS485-
Analog Current Output
VDIN 24V Pull Power Supply
IOUT Analog Current Output
ICOM Analog Current Output Ground
Power Supply
L or (-) 230VAC live or 24V DC (-)
N or (+) 230VAC notr or 24V DC (+)
Ground
Signal from Sensor
SIG1 Signal 1
SGND Signal Ground
SIG2 Signal 2
TCOM
EXT+ Excing Current+
EXT- Excing Current-
DS1 Shielded Excing1
MTSR
DS2 Shielded Excing2

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2.3 Sensor Wiring
2.4 Signal Outputs
2.4.1 Analog Output
Analog output wiring 4 to 20 mA (main connecon)
Blue : Signal 2
Red : Signal 1
Black : Signal GND
Red : EXT +
Black : EXT -

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There are two signal system:0 to 10mA and 4 to 20mA, it can be selected from parameter seng.
Simulaon signal output inner is 24V for 0 to 20mA, it can drive 750Ω resistance.
The percent flux of simulation signal output:
Iout : Measuring Value
Full Scale
For example ;
Measuring Value : 168 m3/h Full Scale : 200 m3/h Current Range : 20 – 4 mA : 16 mA I0 : 4 mA
(168/200)x16+4 : 17,44 mA
Current – Zero Point Calibraon
Enter “Parameter Seng”, and select “Analog Zero”. The standard of signal fountain geng to “0”. Adjust
parameter to ensure that the value of Amperometer is 4mA (±0.004mA).
Current – Full Scale Calibraon
Enter “Anlg Range”. Adjust parameter to ensure that the value of Amperometer is 20mA (±0.004mA)
2.4.2 Frequency,Pulse or Digital output
Frequency or pulse output wiring (main connecon)
x Current Range + I0
Counter,rate indicator
or PLC

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Pout
Pcom
P n
Com
User
equ pment
Vol t age  nput
+
-
E
R
I ns  de
The connection of digital voltage output
Table of digital output parameter: POUT
Parameter Test Condion Mini Typical Max Unit
Voltage IC=100 mA 3 24 36 V
Current Vol≤1.4V 0 300 350 mA
Frequency IC=100mA Vcc=24V 0 5000 7500 HZ
High voltage IC=100mA V
Low Voltage IC=100mA 0.9 1.0 1.4 V
User Side
Pout
Pcomm
24V-
24V+
24V-
24V+
DI
Com
24V-
24V+
1 K Ω
24V-24V+
Pull-up No Resstor;
EMD PLC (Elar, Setex, Sedomat)
Pout
Pcomm
24V-
24V+
24V-
24V+
DI
Com
24V-
24V+
24V-24V+
Pull-up wth Resstor;
EMD PLC (Elar, Setex, Sedomat)

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Frequency output
Digital output means frequency output and pulse output, and both of them use the same output point, so user
can choose only one type of them but not both.
Frequency output range is 0 to 5000Hz, and corresponding the percent of flux
f : Measuring Value
Full Scale
The up limit of frequency output can be adjusted. It can be chosen from 0 to 5000Hz, and also can be chosen
low frequency: such as 0 to 1000Hz or 0 to 5000Hz.
Frequency output mode can be used in control applicaon, because it responses the percent flux. Users can
choose pulse output when the equipment is applied to count.
Pulse Output
Pulse output mainly applies in count mode. A pulse output delegates a unit flux, such as 1L or 1 M3 etc. Pulse
output unit divide into 0.001L, 0.01L, 0.1L, 1L, 0.001 M3, 0.01 M3, 0.1 M3, 1 M3 .When the pulse unit is
selected, please noce the match of the flux range of flowmeter and pulse unit. For volume flux, count
formula as follows:
Q (l/sec) : 0,0007854 x ID2 x V
Q (m3/sec) : 0,0007854 x ID2 x V x 10-3
Where ; ID : Inside diameter (mm) V : Velocity ( m/sec)
The oversize flux and too small pulse unit will be made the pulse output over the up limit.
Generally, pulse output should be controlled below 3000 Pulses/Sec.
Otherwise, pulse output is different from frequency output. When pulse output cumulates a pulse unit, it
exports a pulse. Therefore, pulse output is not equality. Generally, measure pulse output should choose to
count instrument, but not frequent instrument.
Grounding
Contact area of copper Connector PE on Converter Cabinet for grounding should be larger than 1.6mm2.
Contact resistance should be less than 10Ω.
x frequency range

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3. Basic Circuit
32 bt
CPU
ROM
EEROM
LCD
Dsplay
Keyboard
A/D
exctng crcut
Swtchng
Power Supply
Current Output
Pulse Output
Status
Control
Communcaton
Interface
85～260V
45～63Hz
4-20mA or
0-10mA
1-5000Hz
Frequency or
Pulse Output
OC Gate Status
Output
RS485 .etc
preampl
fier
Working Principle: the converter supplies excing current to the coil of flowmeter’s sensor (Detector); the
main amplifier amplifies the electromove force from the sensor and converts it into standard signals of
current or frequency so that the signals can be used for displaying, controlling and processing. Structure of
converter circuit is shown in above figure

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4. Specificaons
 Excing current can be selected for 125mA、187.5mA；
 Velocity range: 0.1 to 15m/s,current speed resoluon: 0.5mm/s;
 AC high-frequency switching power, range of voltage: 85VAC to 250VAC
 DC 24V switching power, range of voltage: 20VDC to 36VDC
 Network funcon: MODBUS、HART Communication (Oponal)
4.1 Especial Funcon
 Recording time when power turn-off, to record power broken me of instrument system automatically and
recruit to count the missing flux
 Recording function of hour gross, to record the flux gross by hour, fit for timed measure;
4.2 Normal Operang Condions
 Ambient Temperature Ranges: –10～+60°C
 Relative Humidity: 5%～90%;
 Power Supply: 85...250V, 45～63Hz ( single-phase AC) or 20...36VDC
 Dissipation Power: < 20W
4.3 Measure Precision
Range (m/s) Accuracy
0,1....0,3 ±0,25 % FS
0,3...1 ±0,5 % R
1...15 ±0,5 % R

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4.4 Digital Frequency Output
Frequency Output Range : 1...5000 Hz
Output Electric Isolate : Photoelectric Isolate > 1000 V
Frequency Output Capacity : Field-effect transistors Output Maximum Voltage: 36V DC
Maximum Current: 250 mA
4.5 Digital Pulse Output
Pulse Output Range : 1... 100 Pulse/s
Pulse Output Value : 0.001-1.000 m3/cp; 0.001-1.000 Liter/cp
Pulse Output Capacity : Field-effect transistors Output Maximum Voltage: 36V DC
Maximum Current: 250 mA
4.6 Alarm output
Alarm Output Juncon : ALMH: Upper Limit; ALML: Lower Limit
Alarm Output Capacity : Field-effect transistors Output Maximum Voltage: 36V DC
Maximum Current: 250 mA
4.7 Digital Communicaon And Protocol
MODBUS interface: RTU; Electric isolate 1000V；
HART interface: be compliant with HART Protocol; Parameters can be set by hand-held device
Profibus
RS232 or RS485
5. OPERATION AND SETUP
5.1 Keys and Display
Compound Down Up Enter
+123,45
FQL m3/h
Σ + 00000524.4 m3
Flow Rate
Flow Rate Unit
Flow Velocity
Percentage
Posive,Negave or Net Total
etc.
Alarm Codes
C

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When measuring, pushing down “Compound Key + Enter” will appear password of changing state, base on
distinction of secrecy, and change the password as we provide. Then pushing “Compound Key + Enter” again,
and you can inter the state of seng parameter. If want to return to the running state, push “Enter” for
several seconds.
6. PARAMETERS SETTING
6.1.1 Keys funcon
a) Keys’ function for self-tesng
: Selecng displayed data on lower line in turn;
: Selecng displayed data on higher line in turn;
+ : Come into parameter seng
: Press it to come into the picture of select funcon.
At measure status, using “Compound” key + “Up” key or “Compound” key + “Down” key for several seconds to
adjust LCD contrast.
b) Funcon keys for parameters seng
“Down” key: Subtract 1 from the number at cursor area;
“Up” key: Plus 1 to the number at cursor area;
“Compound” key + “Down” key: Cursor turns le;
“Compound” key + “Up” key: Cursor turns right;
“Enter” key: Enter/Exit submenu;
“Enter” key: Press for two seconds under any state to return measure status.
It returns to the measure status automatically aer 3 minutes without any acon under parameter setting
status;
C

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6.1.2 Funcon Keys for Parameters Seng
At measuring status, press “Compound” + “Enter” keys geng to the select of parameter and transfer
password (0000), and then reset the password with one of the new passwords that are provided by
manufacturer. Press the “Compound”+“Enter” keys to work in Parameters Seng Way.
There are 6 Passwords in design and Four Passwords for operators, the other Two Password are fixed
passwords for system operaon.
6.1.3 Funcons Select Menu
Press “Compound”+“Enter” keys to the funcons select menu, push “Up” or “Down” keys to select, there are
three funcons:
Code Funcons Notes
1 Parameters Set Enter Parameters Seng
2 Clr Total Rec Total Flow Reset
3 Fact Modif Rec Check the factor’s Modification Record
6.1.3.1 Parameters Set
Press “Compound”+“Enter” key, it displays “Parameters Set” funcon. Input password. Press
“Compound”+“Enter” key, it geng to Parameters Seng status.
6.1.3.2 Clr Total Rec
To push “Compound”+“Enter” keys geng to the select of parameter, then push “Up” key to “Clr Total Rec”,
input the passwords. When the passwords becomes “00000”, this funcon is done, the gross is 0 in the
instrument.
6.1.3.3 Fact Modif Rec
To push “Compound”+“Enter” keys geng to the select of parameter, then push “Up” key to “Fact Modif
Rec”(Detail consult the AppendixFive)
6.1.4 Seng Parameters in Menu
There are 54 parameters of –RM series, user can set every parameter. The List of Parameters is shown below:
Seing Parameters in Menu
Code Parameter words Setng Way Grades Range
1 Language Select 2 English
2 Comm Addres Set count 2 0～99
3 Baud Rate Select 2 600～14400
4 Snsr Size Select 2 3～3000
5 Flow Unit Select 2 L/h、L/m、L/s、m3/h、
m3/m、m3/s

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6 Flow Range Set count 2 0～99999
7 Flow Rspns Select 2 1～50
8 Flow Direct Select 2 Plus/ Reverse
9 Flow Zero Set count 2 0～±9999
10 Flow Cutoff Set count 2 0～599.99%
11 Cutoff Ena Select 2 Enable/Disable
12 Total Unit Select 2
0.001m3～1m3 、
0.001L～1L、
13 SegmaN Ena Select 2 Enable/Disable
14 Analog Type Select 2 0～10mA /4～20mA
15 Pulse Type Select 2 Freque / Pulse
16 Pulse Fact Select 2 0.001m3～1m3 、
0.001L～1L、
17 Freque Max Select 2 1～ 5999 HZ
18 Mtsnsr Ena Select 2 Enable/Disable
19 Mtsnsr Trip Set count 2 59999 %
20 Alm Hi Ena Select 2 Enable/Disable
21 Alm Hi Val Set count 2 000.0～ 599.99 %
22 Alm Lo Ena Select 2 Enable/Disable
23 Alm Lo Val Set count 2 000.0～599.99 %
24 Sys Alm Ena Select 2 Enable/Disable
25 Clr Sum Key Set count 3 0～99999
26 Snsr Code1 User set 4 Finished Y M
27 Snsr Code2 User set 4 Product number
28 Field Type Select 4 Type1,2,3
29 Sensor Fact Set count 4 0.0000～5.9999
30 Line CRC Ena Select 4 Enable/Disable
31 Lineary CRC1 User set 4 Set Velocity
32 Lineary Fact 1 User set 4 0.0000～1.9999
33 Lineary CRC2 User set 4 Set Velocity
34 Lineary Fact 2 User set 4 0.0000～1.9999
35 Lineary CRC3 User set 4 Set Velocity
36 Lineary Fact 3 User set 4 0.0000～1.9999
37 Lineary CRC4 User set 4 Set Velocity
38 Lineary Fact4 User set 4 0.0000～1.9999
39 FwdTotal Lo Correctable 5 00000～99999
40 FwdTotal Hi Correctable 5 00000～9999
41 RevTotal Lo Correctable 5 00000～99999
42 RevTotal Hi Correctable 5 00000～9999
43 PlsntLmtEna Select 5 Enable/Disable
44 PlsntLmtVal Select 5 0.010～0.800m/s
45 Plsnt Delay Select 5 400～2500ms
46 Pass Word 1 User correct 5 00000～99999
47 Pass Word 2 User correct 5 00000～99999
48 Pass Word 3 User correct 5 00000～99999
49 Pass Word 4 User correct 5 00000～99999
50 Analog Zero Set count 5 0.0000～1.9999

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51 Anlg Range Set count 5 0.0000～3.9999
52 Meter Fact Set count 5 0.0000～5.9999
53 MeterCode 1 Factory set 6 Finished Y /M
54 MeterCode 2 Factory set 6 Product Serial No
Parameters of converters can decide the running status, process and output ways as well as state of output.
Correct opon and seng of parameters can keep the converters running opmally and get higher accuracies
of output bother in display and in measurement.
There are 6 grades of passwords for seng parameters funcon. Grades 1 to grade 5 of passwords are for
users and grade 6 of password is for manufacturer. Users can reset their passwords of grades 1 to 4 in grade 5.
Users can check converters parameters in any grade of password. However, if users want to change
parameters pf converters, deferent grade of parameters have to be used by the users.
Grade 1 of password (set by manufacturer as 00521): users can only read parameter.
Grade 2 of password (set by manufacturer as 03210): users can change 1~24 parameters.
Grade 3 of password (set by manufacturer as 06108): users can change 1~25parameters.
Grade 4 of password (set by manufacturer as 07206): users can change 1~38parameters.
Grade 5 of password (Fixed): users can change 1~52 parameters.
Password Grade 5 can be set by skilled users. Grade 4 is mainly used for reseng total volume in password.
Grades 1~3 can be set by any one who can be chosen by users.
6.2 Details Parameters
6.2.1 Language
There are 2 languages for –RM series converter operaon. They can be set by users according to the users
needs.
6.2.2 Comm Addres
It means this instrument’s address when communicates with many, and has 01~99, holding the 0.
6. 3.3 Baud Rate: 600, 1200, 2400, 4800, 9600, 19200
6.3.4 Snsr Size: 3mm to 3000mm
6.3.5 Flow unit: (L/s、L/m、L/h、m3/s、m3/m、m3/h)
6.2.6 Flow Range (Change this value will affect other parameters or output)
Flow range means upper limit value, and lower limit value is set “0” automacally.
Pulse output will not affect.

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FS = ○ ○ ○ ○ ○
± ○ ○ ○ ○ ○
6.2.7 Flow Rspns
It means me of filter measure value. The long one can enhance the stability of flow display and output
digital, and fits for gross add up of pulse flow; the short one means fast respond rate, and fits for producon
control.
6.3.8 Flow Direct
If users think the direct and design are differ, just change the direct parameter is OK, but not change
excing or signal.
6.2.9 Flow zero
Make sure the sensor is full of flow, and the flow is sllness. Flow zero is shown as velocity of flow, mm/s.
Converter’s zero-flow correction displays as below:
Upper small words: FS means measure value of zero;
Lower large words: correcon value of zero.
When FS is not “0”, please set FS = 0.
Note: if change the value on next line and FS increases, please change the “+, -” to correct FS to zero.
Flow zero is the compound value of the sensor, and should be recorded in sensor list and band. The unit
will be mm/s, and the sign will be opposite with correcon value.
6.2.10 Flow cutoff
Flow cutoff is set in percentage of Upper Limit Range of flow, and users can delete all Negligible Small
Signals of flow volume, velocity and percentage out of displaying and outpung them. Somemes user can
delete output of current output signal and frequency (pulse) output signal only to have flow, velocity and
percentage being displayed.
6.2.11 Total Unit
Converter display is counter with 9 bits, and the max is 999999999.
Flow integrator value: 0.001L, 0.010L, 0.100L, 1.000L
0.001 m3, 0.010m3, 0.100 m3, 1.000 m3;

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6.2.12 SegmaN Ena
When “SegmaN Ena” is “enable”, if the flow flows, the sensor will export pulse and current。When it is
“disable”, the sensor will export pulse as “0” and current as “0”(4mA or 0mA) for the flow flows reversals.
6.2.13 Output currents
0~10mA or 4~20mA is available
6.2.14 Analog Type
Frequency Output and Pulse Output.
Frequency Output is connuous square waveform and Pulse output is a serial wave of square wave. Frequency
Output is mainly used for instant flow and total integrated flow in short me measurement. Frequency output
can be chosen in equivalent frequency unit and volume of integrated flow can be displayed. Frequency Output
can be used in long me measurement for total integrated flow with volume units.
6.2.15 Pulse Type
Frequency output and pulse output are usually from OC gates so that DC power supplies and load resistors
have to be required
6.2.16 Pulse Fact
Equivalent pulse Unit is referred to one pulse for corresponding flow. The range of pulse equivalent can be
chosen:
Pulse Equivalent Flow Pulse Equivalent Flow
1 0.001L/cp 5 0.001m3/cp
2 0.01L/cp 6 0.01m3/cp
3 0.1L/cp 7 0.1m3/cp
4 1.0L/cp 8 1.0m3/cp
Under the same flow, the smaller pulse, the higher frequency output, and the smaller error will be. The highest
pulse output is 100cp/s, and mechanism electromagnec counter can get 25 frequency/s.
6.2.17 Freque Max
Frequency output range is as the upper limit of flow measure, just the percent flow 100%. Frequency output
upper limit can be selected between 1～5000Hz.
6.2.18 Mtsnsr Ena
The state of empty pipe can be detected with the funcon of converter. In the case of Empty Pipe Alarm, if the
pipe was empty, the signals of analog output and digital output would be zero and displayed flow would be
zero.

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6.2.19 Mtsnsr Trip
When the pipe is full of liquid (whether flowing or not), the parameter of “Mtsnsr” could be modified more
easily. The parameter displayed upper line is real MTP, and the parameter displayed bellow is the “Mtsnsr
trip” that should be set. When seng “Mtsnsr trip”, you could be according to the real MTP, the value that
should be set is usually three to five mes of real MTP.
6.2.20 Alm Hi Ena
Users can choose “Enable” or “Disable”.
6.2.21 Alm Hi Val
The parameter of upper limit alarm is percentage of flow range and can be set in the way of seng one
numerical value between 0%~199.9%.When the value of flow percentage is larger than the value of seng
value, the converter outputs the alarm signal.
6. 2.22Alm Lo Val
The same as upper limit alarm.
6.2.23 Sys Alm Ena
Selecng Enable will have the funcon, and selecng Disable will cancel the funcon.
6.2.24 Clr Sum Key
User use more than 3 byte code to enter ,Then set this password in Clr Total Rec.
6.2.25 Snsr Code
It is referred to the produced date of sensor and the serial number of product that can keep the sensors
coefficient right and accurate.
6.2.26 Sensor Fact
“Sensor Coefficient” is printed on the Label of the sensor when it is made in factory. The “sensor coefficient”
has to be set into Sensor Coefficient Parameter when it runs with converter.
6.2.27 Field Type
affords three excing frequency types: 1/16 frequency (type 1), 1/20frequency (type 2), 1/25 frequency (type
3)。 The small-bore one should use 1/16 frequency, and large-bore one should use 1/20 or 1/25 frequency.
When using, please select type 1 first, if the zero of velocity is too high, select the type 2 or type 3.
Note: Demarcate on which excing type, working on it only.

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6.2.28 FwdTotal Lo, hi
Posive total volume high byte and low byte can change forthcoming and reverse total value, and be used to
maintenance and instead.
User use 5 byte code to enter, and can modify the posive accumulang volume (∑+). Usually, it is unsuitable
to exceed the maximum the counter set(999999999).
6.2.29 RevTotal Lo、hi
User use 5 byte code to enter, and can modify the negave accumulang volume (∑-). Usually, it is unsuitable
to exceed the minimum the counter set(999999999).
6.2.30 PlsntLmtEn
For paper pulp, slurry and other serosity, the flow measure will have "cuspidal disturb", because the solid grain
friction or concussion the measure electrode. -RM converters
use variaon restrain arithmec to conquer the disturbing by designing three parameters to select disturb
character .
Set it "enable", start variaon restrain arithmetic; set it "disable", close variaon restrain arithmetic.
6.2.31PlsntLmtVl
This coefficient can disturb the variaon of cuspidal disturb, and calculate as percent of flow velocity, thus ten
grades: 0.010m/s, 0.020m/s, 0030m/s, 0.050m/s, 0.080m/s, 0.100m/s, 0.200m/s, 0.300m/s, 0.500m/s,
0.800m/s, and the smaller percent, the higher delicacy of cuspidal restrain.
Note: when using it, must test for select by the fact, and somemes it is not the higher delicacy is good.
6.2.32 PlsntDelay
This coefficient can select the width of me of restrain cuspidal disturb and the unit is ms. If the duraon is
shorter than flow change in some me, –RM series will think it is cuspidal disturb, and if it is longer, –RM series
will think it is natural. It also needs to select parameter in fact.
6.2.33User’s password 1~4
Users can use 5 grades of passwords to correct these passwords.
6.2.34 Analog Zero
When the converters are made in the factory, output current has been calibrated to zero scale, that is,
accurate 0mA or 4mA output.
6.2.35 Anlg Range
When the converters is made in the factory, output current have been calibrated to full scale, that is, accurate
10mA or 20mA output.
6.2.36Meter Fact
This fact is the special one of sensor-made-factory and the factory use this fact to unite –RM series
electromagnec flowmeters converters to make sure all the instruments can interchange by 0.1%.

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7. ALARM INFORMATION
–RM series intelligent converters have self-diagnose funcon. Without trouble of power and hardware circuit,
the normal trouble can be alarmed correctly. This informaon displays on the le of LCD. The explanaon
of Alarm as below:
FQH: High flow limit alarm;
FQL: low flow limit alarm;
FGP: empty pipe alarm;
SYS: System excing alarm
8. TROUBLESHOOTING
Symptom Probable Cause Soluon
No Display
1. No power Apply correct power
2. Fuse blown Replace a fuse with same parameter
3. Contrast of LCD is too low Increase the contrast
Empty Pipe Alarm
1. Fluid is not full filled the pipe Increase the flow rate
2. Electrode was polluted Clean the electrode if voltage of DS1 and DS2 > 1V.
3. Fluid’s conducvity is too small
If connect three terminals SIG 1, SIG 2, SIGGND. and
the alarm disappears, which means the fluid’s
conducvity is small.
Replace other kind of flowmeter
Flow rate indication is
unstable
1. Grounding issue Make sure meter is properly grounded to a good
earth ground
2. Air Make sure fluid does not contain air bubbles
3. Converter locaon – outside electrical
interference
Make sure Converter is not too close to sources of
electrical interference