RMG EC 21 Operating Instructions Manual Download Page 42

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ANNEXES

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Manual EC 24 · EN05 · 2015-02

D Examples of connection (EC 21 and EC 24)

Battery-powered device

Alarm

24 V/DC

Pin assignment (692):

1 = LF -

4 = LF +

2 = Alarm -

5 = Alarm +

3 = HF -

6 = HF +

Isolating device

Type: Datcom-K3

Hazardous area

Safe area

Connector,
Binder Series 423

Isolating amplifiers

KFD2-SOT-Ex2 (24 V/DC)

RS 485

LIYCY 2x2x0.5 mm blue

Pulse outputs

LIYCY 3x2x0.75 mm blue

* If 2-channel isolating amplifiers

are used, the two inputs must
be separated!

Summary of Contents for EC 21

Page 1: ...by Honeywell Serving the Gas Industry Worldwide Volume Corrector EC 24 and Temperature Corrector EC 21 OPERATING INSTRUCTIONS STATUS FEBRUARY 2015...

Page 2: ...s contained in our operating instructions without prior notice However you can conveniently download the most recent version of this manual and those of other devices from our website www rmg com RMG...

Page 3: ...aller 6 INSTALLATION 8 Electrical connections 8 Installing the remote totalizer 12 OPERATION 13 Front panel and keyboard of the EC 24 13 Display 14 Programming 15 Parameters and modes of the EC 21 EC...

Page 4: ...1 temperature corrector and the EC 24 volume corrector 29 B Block diagram for the EC 21 EC 24 31 C Specifications 32 D Examples of connection EC 21 and EC 24 38 E Instructions for the measuring elemen...

Page 5: ...rrection T Vm totalizer and volume correction p T Vm totalizer and volume correction p T Case Inputs Wiegand 1 or 2 channels Wiegand 1 or 2 channels Wiegand 1 or 2 channels Wiegand 1 or 2 channels Ree...

Page 6: ...ace of a few square centimetres using the most advanced SMD technology with large scale integrated components Several device functions such as pulse counting frequency measurement keyboard controller...

Page 7: ...s disconnect the battery see section Changing the battery Also a possibly existing backup battery for mains supplied devices must be disconnected Press the P key and keep it pressed Connect the batter...

Page 8: ...f an external power supply current transmitter which serves as a power supply and 4 to 20 mA current output at the same time the EC 21 EC 24 is completely supplied via a current loop For this purpose...

Page 9: ...ng signs Danger of explosion In the manual this symbol warns you of an explosion hazard Please observe the instructions given next to this symbol As to the danger of explosion please note the followin...

Page 10: ...o be made sure that the degree of protection of the case is kept A direct exposure to sun must be avoided In case of disassembly the signal circuits are to be switched to zero potential and the corres...

Page 11: ...e by RMG Messtechnik Changes of the basic setting may only be carried out by persons after training and or instruction Maintenance The battery changes may only take place in a safe area Repairs at thi...

Page 12: ...stop totalizer or resetting the resettable totalizer depending on the programming of the electronic totalizing unit is performed through input X5 terminals 1 and 2 As soon as input X5 terminals 1 2 ha...

Page 13: ...slot and press down the screwdriver to open the spring terminal Standard connection pulse outputs 7 pin connector Binder series 692 1 4 LF signal Vm or Vb 2 5 Fault 3 6 HF signal view on device Stand...

Page 14: ...se Cables Use 2 core or multicore shielded cables which are twisted together in pairs type LIYCY for the signal lines LF output HF output current loop connection control input Use 4 core shielded cabl...

Page 15: ...h the cable end through the cap nut and the clamping piece and bend the shielding backwards Put the clamping piece back into the connecting piece Screw on the cap nut again Permissible temperature ran...

Page 16: ...Usually the cable has already been connected to the sensor and the totalizing unit when the device is delivered Should this not be the case you will have to connect the connecting cable to input X5 te...

Page 17: ...Arrow Down Moves downwards within a list Moves from the first value of the list towards the last value Arrow Right Moves to the right towards another list Moves from the first list towards the last li...

Page 18: ...In this mode the display is completely switched off However incoming pulses are processed and the outputs are set If you press one of the two control buttons the display value will appear again Displa...

Page 19: ...ule is to be connected via a pin connector see the picture below Programming module Programming keys P Servicemodul TERZ94trm TERZ94p Impulsausg nge Datenschnittstelle Datenschnittstelle EZD RS 485 Bo...

Page 20: ...on In display mode Move to the right within the matrix change of column In programming mode Increase the decimal by 1 Scroll in the list Display value is identified by L In display mode Move towards t...

Page 21: ...pecified values After you have completed your programming of the first decimal press once and the next character will start to flash Now proceed with your programming until you have reached the last d...

Page 22: ...isplayed Any modification of this adjustment is within the sphere of responsibility of the operating company NOTE The new value is immediately used for all calculations performed after each modificati...

Page 23: ...Example If the factor has been set to 0 1 the meter reading will be displayed with one decimal If the factor has been set to 10 the value displayed will be shown without decimals and you will obtain...

Page 24: ...hly data memory pu min 11 Monthly data memory Rise 12 Monthly data memory Factor correction value 13 Monthly data memory Offset correction value 14 22 Monthly data memory Pointer position C Io Error T...

Page 25: ...n switch just unscrew the screw by some turns until the text Input is blinking in the display Then all parameters coded with S or C can be changed Designation of columns A to O Press the above functio...

Page 26: ...D 3 F Frequency measurement Hz S 4 Qm Lower fault limit m3 h S 5 Qm Upper fault limit m3 h D 6 Qmx Maximum value of the flow rate at measurement conditions m3 h S 7 qug Creeping limit m3 h S 8 qmt Tim...

Page 27: ...ecial feature D 1 C Conversion factor 1 D 2 K K coefficient 1 C 3 K V Specified value K coefficient if K const 1 C 4 Hon Superior calorific value KWh m 3 C 5 rhn Rhon Kg m3 C 6 CO2 Carbon dioxide cont...

Page 28: ...nge Mode Memory Pointer position Mode Coding Coordinate Line Z Description of the coordinate Unit Special feature C 1 MOD TerzMode See operating modes C 2 MOD EcMode See operating modes C 3 X Puls_ X...

Page 29: ...TerzMode coordinate Z1 TerzMode 5 Pulse scaling factor 0 01 0 1 1 10 100 EcMode coordinate Z2 EcMode 5 Analysis mode K const GERG AGA TerzMode 4 Interface protocol off Modbus ASCII Modbus RTU EcMode...

Page 30: ...2 5 Device type mode meter meter T meter p T corrector T corrector p T EcMode2 4 Spare mode EcMode2 3 Spare mode EcMode2 2 Protection mode fiscal metering secondary metering EcMode2 1 GERG TB mode 0 1...

Page 31: ...are lost 3 0x0004 Analog digital converter for temperature measurement 4 0x0008 Analog digital converter for pressure measurement 5 0x0010 Sensor failure 6 0x0020 Measured temperature outside limits...

Page 32: ...ttery holder again see figure and push it into the battery compartment Now screw in the cover again and the battery change is terminated In safe areas the batteries can be changed directly without dis...

Page 33: ...ate at base conditions Vb m3 Volume at base conditions C p t 1 Conversion factor KZ2 m3 P Totalizer factor for output contacts only p bara Absolute pressure at measurement conditions barg kg cm2 pb ba...

Page 34: ...m b K 1 C V V The pressure at measurement or base conditions is processed as absolute pressure in the relevant equations In selection mode 2 of column A however transmitters with gauge pressure or kg...

Page 35: ...ressure transmitter Only EC 24 Temperature sensor PT 1000 Pulse comparison EZD or RS485 Current module Memory Print Clock TERZ 94 Keyboard RS 485 Modbus 4 to 20 mA Fault HF LF Vb or Vm 8 digit display...

Page 36: ...power supply unit e g KFD2 STC3 Ex1 Ex plus battery pack Pulse input Reed or transistor Current output Only possible via the current loop connection Standby battery Only in conjunction with the curre...

Page 37: ...nals X5 1 X5 2 Sensor type Wiegand sensor direct Jumpers X_S1 3 5 and 4 6 Wiegand sensor remote totalizer Length of line 50m1 Jumpers X_S1 3 5 and 4 6 Jumpers X_TERZ90 1 2 Reed contact Jumpers X_S1 1...

Page 38: ...Ex connected loads see the approval certificate Signal Resistor Pt1000 2 wire Terminals X9 1 X9 2 Measuring range 20 C to 60 C Resolution 0 2 C Pressure transmitter For Ex connected loads see the app...

Page 39: ...0 V Umax 28 V 30 V Imax 60 mA 400 mA External inductance 1 H External capacitance 25 F LF output In the case of the explosion protected Ex design the device can only be connected to a certified intrin...

Page 40: ...ce 1 H External capacitance 25 F RS 485 data interface In the case of the explosion protected Ex design the device can only be connected to a certified intrinsically safe circuit For Ex connected load...

Page 41: ...V RLmax 16 V 10 V 23 mA 260 Current output for minimum flow rate 4 mA maximum flow rate 20 mA warning 3 5 mA fault 23 mA Accuracy of current output Better than 1 of the upper range value Data for use...

Page 42: ...LF 24 V DC PE 6 4 3 2 1 5 Pin assignment 692 1 LF 4 LF 2 Alarm 5 Alarm 3 HF 6 HF Isolating device Type Datcom K3 Hazardous area Safe area Connector Binder Series 423 Isolating amplifiers KFD2 SOT Ex2...

Page 43: ...gnment 692 1 LF 4 LF 2 Alarm 5 Alarm 3 HF 6 HF Isolating device Type Datcom K3 Hazardous area Safe area Connector Binder Series 423 Isolating amplifiers KFD2 SOT Ex2 24 V DC Supply unit e g KFD2 STC4...

Page 44: ...Steel 3 WF01 or WF02 sensor 4 Permanent magnet Oerstit 500 5 Lubricator with TERZ 94 from DN 200 6 Radial ball bearing Nirosta steel 7 Turbine wheel Delrin aluminium 8 Flow straightener Hostaform 9 O...

Page 45: ...tation of the turbine wheel This pulse is further processed by the electronic system of the meter head 1 Inside the meter head or corrector the number of pulses is divided by the meter factor number o...

Page 46: ...N is the nominal diameter of the meter mm The pressure loss coefficient ZP is ZP 5040 TERZ 94 TRZ 03 TE ZP 6050 TRZ 03 TEL This is an approximate mean value The exact value is calculated from the pres...

Page 47: ...nstall the meter please observe the direction of flow indicated on the case The meter head 1 can be turned after the clamping screw 2 has been loosened Turn the meter head by max 360 otherwise the sig...

Page 48: ...volumeter PT corrector type EVC 24 Dimensions 058147 4 Pr EC24 Flow direction from left to right Flow direction from right to left Standard installation TERZ meter flange design display Pr display 6 x...

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