Mechanical connection ......................10 Electrical connections ....................... 11 Connection box of the measuring element ................... 11 Terminal assignments for the EMC 500 design with analog transmission ..........11 Terminal diagram of the measuring element for digital transmission ............ 12 Warming-up phase ........................13 Initial calibration ........................
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B Technical Data ........................49 C Pin Assignment Diagram for the GC 9000 ................51 D Fault List ..........................52 E Configuration of the Interfaces ................... 55 F Assembly Instructions for Pipe Connections ..............56 ........................................... Manual EMC 500 · EN01 · 2008-02...
The version EMC 500-L is also suitable for natural gases which have been conditioned with up to 20% of air. This version may be used for custody transfer flow measurements of the superior calorific value and the CO content.
......................................... Operating principle At the heart of the EMC 500 measuring device lie two thermal sensors depending on the type of gas used which are used to measure the heat capacity and thermal conductivity of the gas. Since these two quantities represent over a wide range a function of the superior calorific value, it is possible to calculate the superior and inferior calorific values from these measured values.
Inlet pressure 0.5 to 3.0 bar B: Calibration gas inlet 1/8” pipe connection with Swagelok joint C: Test gas inlet E1, E2: Outlet pipes with 6 mm pipe connections with Swagelok joints ........................................... Manual EMC 500 · EN01 · 2008-02...
Inlet pressure 0.5 to 3.0 bar B: Calibration gas inlet 1/8” pipe connection with Swagelok joint C: Test gas inlet E1, E2: Outlet pipes with 6 mm pipe connections with Swagelok joints ........................................... Manual EMC 500 · EN01 · 2008-02...
Connection of pressure compensation Gas outlet Heating mat Capillary tube spiral (flow resistor) Cover for gas preheating plate, all-round welded to be gas-tight. Flow sensor p pressure sensor Heating mat Gas preheating plate ........................................... Manual EMC 500 · EN01 · 2008-02...
Protected Design General Instructions The explosion-protected design of the EMC 500 superior salorific value, standard density and Wobbe index measuring device is an explosion-protected electrical apparatus of the “explosion- proof encapsulation” type of protection with a terminal compartment of the “increased-safety” type of protection.
If repairs are done by the manufacturer, they need not be approved by an expert..........................................Manual EMC 500 · EN01 · 2008-02...
-20°C and must not rise to more than +55°C. Mechanical connection The EMC 500 has two gas inlets (one for the measuring gas and the other for the calibration gas) and one gas outlet. In addition, a bypass is installed which can be connected in the event of long supply lines and high pressures in order to reduce reaction time.
Connection box of the measuring element Screw secured Cover plate with locking seal secured PE 1 2 3 4 5 6 7 8 11 12 PE PE Terminal assignments for the EMC 500 design with analog transmission Measuring Analytical Signal element computer terminal...
START-UP ......................................... Terminal diagram of the measuring element for digital transmission ........................................... Manual EMC 500 · EN01 · 2008-02...
This is mainly due to the following reasons: - The sensor block of the EMC 500, where the sensors and the pressure regulators are located, is heated at a constant temperature of approx. +65°C. The warming-up phase is necessary to heat up the interior.
Operation Automatic recalibration Using the automatic recalibration feature, you can calibrate the EMC 500 either by pressing the appropriate key or at selectable intervals via its internal clock. For custody transfer applications the calibration interval may not exceed 4 weeks.
"Test Gas OFF" for completion. In any case a test gas analysis can maximally last as long as specified in coordinate M 13 as time limit (in minutes). Afterwards the EMC 500 switches back to measuring gas analysis. The results of the test gas analysis are displayed in M 14 to M 24.
CPU continues to carry out all measuring tasks. An interface module has been plugged onto the back of this CPU in order to provide the device with another four data interfaces..........................................Manual EMC 500 · EN01 · 2008-02...
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- With the DSfG version no storage of the measured values takes place. For storage of the measured values the data logger MRG 2203, approved for custody transfer application, is available. The software of this device is specifically adapted to the EMC 500. The software version is to be read in Y 24.
On the ID plate you find, among other things the serial number of the measuring element. Since the operating parameters are adjusted to the measuring element and stored in the analytical, operation is only possible if the analytical computer is connected to the appropriate measuring element! ........................................... Manual EMC 500 · EN01 · 2008-02...
Indication calibration status and when pressing the keys all values related to the calibration status incl. start and results ± , Calibration report, data report, revision report ........................................... Manual EMC 500 · EN01 · 2008-02...
To switch over from short designations to coordinates and vice versa. Switching over is possible in almost all fields (also in the programming mode). Release of special functions (according to instructions on the display) ........................................... Manual EMC 500 · EN01 · 2008-02...
ENTER key. The brightness of the bottom line is reduced to indicate that access to the coordinate field is enabled..........................................Manual EMC 500 · EN01 · 2008-02...
For values in exponential representation the "E" is entered by pressing the ± key. For this purpose it is necessary that a comma has been entered before. So for example the input of 3E-5 is not possible but it must be entered 3.0E-5..........................................Manual EMC 500 · EN01 · 2008-02...
7. Select "Wobbeindex" in field F7 with the keys. 8. Press the Enter key. Now the limits for the Wobbe index at 4 and 20 mA remain to be inputted..........................................Manual EMC 500 · EN01 · 2008-02...
S = Data which can be modified via Designation of the line in a column. The headline is not displayed in coordinate representation. Bold text shows important fields! ........................................... Manual EMC 500 · EN01 · 2008-02...
Temperature at base cond. sup. calorif. value 0°C /15°C / 20°C / 25°C 1) In this field a manual calibration can be started with the "*" key if the code number has been inputted before (see display text)..........................................Manual EMC 500 · EN01 · 2008-02...
(see field D-24). For hour- or minute-based intervals, the time of synchronization is the next change of hour or minute, independently of the weekday and the starting time. As soon as the time of synchronization has been reached, no calibration will be initiated..........................................Manual EMC 500 · EN01 · 2008-02...
D Hsc Current GC-corrected superior calorific value s. K/21 D rnc Current GC-corrected standard density kg/m3 D CO2c Current GC-corrected CO2 content s. K/24 D Wsc Current GC-corrected Wobbe index s. K/22 ........................................... Manual EMC 500 · EN01 · 2008-02...
3) If a fault occurs, the current displayed will not correspond to the converted physical value. Depending on the set mode, the current will be calculated from the default value or the last measured value, or it will be zero..........................................Manual EMC 500 · EN01 · 2008-02...
3) If a fault occurs, the current displayed will not correspond to the converted physical value. Depending on the set mode, the current will be calculated from the default value or the last measured value, or it will be zero..........................................Manual EMC 500 · EN01 · 2008-02...
3) If a fault occurs, the current displayed will not correspond to the converted physical value. Depending on the set mode, the current will be calculated from the default value or the last measured value, or it will be zero..........................................Manual EMC 500 · EN01 · 2008-02...
3) If a fault occurs, the current displayed will not correspond to the converted physical value. Depending on the set mode, the current will be calculated from the default value or the last measured value, or it will be zero..........................................Manual EMC 500 · EN01 · 2008-02...
Port C2 baudrate: 9600 / 19200 / 38400 D RS_C3 Heading serial data interface C3 S C3-Type Port C3 type: OFF / MB-Sl.ASCII / MB-Sl.RTU / RMG bus S C3-Baud Port C3 baudrate: 9600 / 19200 S C3-Bits Port C3 number of bits: 7 / 8...
D FrnL Last valid EMC standard density kg/m3 D FdL Last valid EMC relative density D FHiL Last valid EMC inferior calorific value s. K/23 D FCO2L Last valid EMC carbon dioxide content ........................................... Manual EMC 500 · EN01 · 2008-02...
Lower fault limit, carbon dioxide content s. K/24 S CO2max Upper fault limit, carbon dioxide content s. K/24 C CO2-def Default value, carbon dioxide content s. K/24 S CO2-af Averaging factor (damping), carbon dioxide content ........................................... Manual EMC 500 · EN01 · 2008-02...
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S CH-af Averaging factor (damping), hydrocarbon content S MN-min Lower fault limit, methane number S MN-max Upper fault limit, methane number 1) For fiscal metering in the mode EMC 500 (see Y25)..........................................Manual EMC 500 · EN01 · 2008-02...
C LPT-EMC EMC data report sensors Print OFF / Print ON C AutoRep EMC automatic print repetition rate C Rev-Rep EMC revision print repetition rate D L-P Time of last EMC printout ........................................... Manual EMC 500 · EN01 · 2008-02...
Column Q Description of coordinates Unit Comment(s) D Time Heading of time display C Time: Time display D UnixS Unix seconds since 01.01.1970 00:00 D UnixT Date and time of Unix Time ........................................... Manual EMC 500 · EN01 · 2008-02...
D 3202 Measuring element error, bit string 3 D 3203 Measuring element error, bit string 4 D Warn-fl Warning flag D Fault-fl Fault flag D E-idx Index events archive D E-Arch. Events archive ........................................... Manual EMC 500 · EN01 · 2008-02...
Sensor 1 offset, base calibration D Off-D1 Sensor 1 diff. with regard to base calib. D S1-1112 Measured value read from EMC, sensor 1 D S1-1012 Analog value read from EMC, sensor 1 ........................................... Manual EMC 500 · EN01 · 2008-02...
Sensor 2 offset, base calibration D Off-D2 Sensor 2 diff. with regard to base calib. D S2-1114 Measured value read from EMC, sensor 2 D S2-1014 Analog value read from EMC, sensor 2 ........................................... Manual EMC 500 · EN01 · 2008-02...
Measured value read from EMC, output pressure P1 D p1-1002 Analog value read from EMC, output pressure P1 D dp-1104 Measured value read from EMC, differential pressure DP D dp-1004 Analog value read from EMC, differential pressure DP ........................................... Manual EMC 500 · EN01 · 2008-02...
Mode EMC case temperature S tC-Spec Specified value, EMC case temperature °C D tC-1106 Measured value read from EMC, case temperature TC D tC-1006 Analog value read from EMC, case temperature TC ........................................... Manual EMC 500 · EN01 · 2008-02...
1) The changed setting will only become effective after a restart of the analytical computer 2) Attention: Input 0 is only allowed for testing operations. In normal measuring mode, start time 2 must be unequal 0! ........................................... Manual EMC 500 · EN01 · 2008-02...
For natural gases which have been conditioned with air: EMC 500-L (calorific value and CO2 for custody transfer flow measurements; standard density after special test for calculation of K number) Calculated methane number with GC-corrected values. The methane number can only be calculated within the following ranges: Hs: 8.33 –...
Data interface C2 inactive Modbus Data interface C3 (ASCII) RMG bus Data interface C4 (ASCII) Measuring Data interface C5 element Power supply for 24 V DC or 230 V AC ........................................... Manual EMC 500 · EN01 · 2008-02...
C2 interface RS 485 (inactive) or DSfG C3 interface RS 232 modbus (max. distance 15 m) C4 interface RS 485 RMG bus (changeable to RS 232) C5 interface RS 232 for communication with measuring element transmission rates from 1200 to 38400 bd...
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B x H x T = 475 x 720 x 340 mm IP 54 (Ex design) Degree of protection: IP 43 (Non-Ex design) 0.5-3.0 bar Inlet pressure range: Gas consumption: max. 15 N/h ........................................... Manual EMC 500 · EN01 · 2008-02...
C4 needs external terminating resistors and a bus supply voltage (+5 V). Select the mode for the interface C4 by the DIL switch 5 on the CPU card: DIL 5 ON: RS 485 DIL 5 OFF: RS 232 ........................................... Manual EMC 500 · EN01 · 2008-02...
* For pipe connections sized 2, 3, 4 mm or 1/16", 1/8", 3/16", you must tighten the nut with a ¾ turn during initial assembly. Removed fitting Insert pipe with clamping rings into fitting until stop is reached Tighten nut with fingers only, then use wrench to tighten it with approximately ¼ turn..........................................Manual EMC 500 · EN01 · 2008-02...
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