EGC050W TOKYOKEISO | Alldatasheet

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Technical content

MAGMAX EGC050W is a highly-reliable separate type converter for electromagnetic flowmeter with the simple design. The en- hanced self-diagnostic functions provide empty pipe detection, monitoring various states of detector and much more. The easy-to-use converter in the field, EGC050W is used in combi nation with the MAGMAX series primary head.

FEATURES

❏ Standardized high-performance functions such as pulse output, bi-directional flow measurement and status outputs including flow rate alarms. ❏ High accuracy of ±0.5% of reading. ❏ High speed data processing for quick response. Suitable for batch process control and pulsating flow. ❏ The extendable excitation system allows applications to much fluid noise such as slurry. ❏ The LCD with backlight provides 1 to 3 lines of versatile indica tion. ❏ Equipped with a quick setup function to readily respond to changed flow range, pulse rate, etc. The magnet keys allow you to alter the settings without removing the cover of conversion section. ❏ 10kHz high-speed pulse output. Capable of responding to short batch processes. STANDARD SPECIFICATION General Specification

  • Primary head for : MAGMAX Series Primary head combination EGS1000, EGS2000, EGS4000,
  • Excitation : Square wave
  • Measuring range : Flow velocity Min. 0 to 0.3m/s Max. 0 to 12m/s
  • Protection class : IP66/67 (IEC 60529)
  • Material Housing : Aluminum alloy (*1) Converter cover : Aluminum alloy (*1)
  • Painting : Polyurethane resin paint
  • Color : Silver (Housing) Jade green (Converter cover)
  • Installation : Wall mount, Optionally 2 inch pipe mount (*1) Anti-corrosive painting
  • Cable entry : 4 × G1/2 female thread 4 × 1/2 NPT female thread 4 × M20 with watertight glands (Option : Watertight glands for G1/2)
  • Supply voltage : 100 to 230V AC (85 to 253V AC) 24V DC (17 to 31V) Note: Figures in ( ) show allowable voltage range. MAGMAX EGC050W Converter for Electromagnetic Flowmeter
  • Supply frequency : 48 to 63Hz (AC)
  • Power consumption : AC; approx. 15VA DC; approx. 6W
  • Ambient temp. : –40 to +65°C (For operation) –40 to +70°C (For storage)
  • Grounding : Grounding resistance must be less than 100Ω.
  • Cable Exclusive cable for : DS cable electrode signal 2c × 0.5mm2 with double shield, PVC sheath, outer diameter ; approx. 10mm Excitation current : 2c × 0.75 to 2.5mm2 with shield (*2), cable outer diameter ≤ 12mm Power supply and : 2 to 4c × 0.5 to 2.5mm2 (*3), output signal cables outer diameter ≤ 12mm (*2) Cable length is defined and core size is subject to the termi- nal structure. Refer to “Excitation current cable” for details on page 3. (*3) Core size is subject to the terminal structure. Refer to “Applicable core size” for details on page 5. TG-F2430-E00 Jul 20241st edition K

MAGMAX Converter for Electromagnetic Flowmeter EGC050W 2 TOKYO KEISO CO., LTD. TG-F2430-E00 Error ±% of reading Velocity (m/s) 1 2 120 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Indication and Output Specification

  • Indicator : Dot matrix LCD (With backlight) 128 × 64 pixels (59 × 31mm) Indication by initial setting 1 st page, indicated in 2 lines Upper line : Flow rate Lower line : Flow rate in bar-graph in % 2 nd page, indicated in 3 lines Upper line : Flow rate Middle line : Total flow in forward direction Lower line : Total flow in reverse direction
  • Current output : 4 to 20mA DC (Max. 22mA at burn out error mode) Internal power supply : Less than 750ohms (Load resistance) External power supply : Less than 32V DC (External voltage)
  • Pulse output Open collector output Rating : Less than 32V DC, 20mA (≤10kHz) Less than 100mA (≤100Hz) Residual voltage: Less than 0.2 VDC at 10 mA Leak current: Less than 0.05 mA at 32 VDC Pulse rate 2 to 36,000,000 pulse/h (0.00056Hz to 10kHz) Pulse width One of the following selectable 1) Automatic : Pulse width by which duty factor to be 50% at full scale 2) Duty factor 1:1 fixed 3) Free setting ; 0.05 to 500ms
  • Status output Open collector output (Status output is selected from pulse out- puts by switching.) Rating : Less than 32V DC, 100mA Max. Residual voltage: Less than 0.2 VDC at 10 mA Leak current: Less than 0.05 mA at 32 VDC Contents of output One of the followings is selectable, for example. Other status outputs are also available.: 1) Identification of flow direction 2) Over range 3) Error 4) Flow alarm 5) Empty pipe detection
  • Description of input and output terminal Terminal Standard setup Switchover by reprogramming A (A, A+ / A–) Current output — D (D, D–) Pulse output Status output
  • Low flow cutoff Current output, Pulse output, Indicator (The outputs work in conjunction with each other.) Setting value : 0.0 to 20.0% FS
  • Damping time constant Current output, Pulse output, Indicator (The outputs work in conjunction with each other.)
  • Isolation of input and output The circuits among power supply, electrode input, excita- tion output, terminal A and terminal B are isolated each other. Standard Functions
  • Customer’s free measuring unit setting function Volume (or mass) and time unit in 7 characters can be cre- ated.
  • Automatic zero adjustment function Zero adjustment is automatically conducted at "ZERO ADJUST MODE" (Subject to zero flow)
  • Bi-directional flow measurement function A flow-direction distinction signal is outputted in state output and current.
  • Excitation current frequency switching function Standard mode : 1/6 of supply frequency (Standard) Special frequency mode : 1/50 to 1/2 times of supply frequency (*4)
  • Self-diagnosis function The following conditions are indicated by error message; Functional diagnosis : Coil disconnection, CPU, Memory, Software, Output module, and Output connection Status diagnosis : Empty pipe detection, Over range, Counter over flow, and Power fail detection
  • Memory save function for power fail Operation parameters and totalization figures are stored for more than 10 years by EEPROM (Non volatile memory).
  • Testing function Simulating output function for current, pulse output and status output are integrated. Current output test : Arbitrary output (0.0 to 22.0 mA) Pulse output test : Arbitrary output (1Hz to 10kHz) Status output test : On / Off
  • Magnet key setting function The magnet keys allow you to alter the settings without removing the cover of conversion section. (*4) It can be changed for every application, such as slurry and a pulsating flow. Accuracy (*5)
  • Indication and Pulse output 1) Used in combination with following primary heads EGS2000, EGS4000 For flow velocity ≥ 0.5 m/s: ±0.5% of reading For flow velocity < 0.5 m/s: Velocity error ±2.5 mm/s (± 0.0025 ×100% )Flow velocity 2) Used in combination with following primary heads EGS1000 For flow velocity ≥ 1 m/s: ±0.5% of reading For flow velocity < 1 m/s: ±0.4% of reading+Velocity error ±0.001 m/s (±0.4+ 0.001 ×100% )Flow velocity

MAGMAX Converter for Electromagnetic Flowmeter EGC050W TOKYO KEISO CO., LTD. 3 TG-F2430-E00

  • Current output : Additional error of ±0.01mA be added to the accuracy of indication or pulse output. (*5) Basis condition Fluid : Water Fluid temperature : 10 to 30ºC Conductivity : 150µS/cm or more Supply voltage : Rated voltage ±2% Ambient temperature : 18 to 28ºC Upstream / Downstream pipe length : 10D / 2D (D: Diameter) Warm-up time : About 10 minutes Measuring time : 100s CABLE LENGTH BETWEEN PRIMARY HEAD AND CONVERTER [Electrode signal cable]
  • The maximum length of electrode signal cable Primary head Nominal size (mm) DS Max. cable length Graph EGS1000 10 to 150 10 to 600m A1 EGS2000 25 to 150 10 to 600m A1 200 to 1200 10 to 600m A2 EGS4000 10 to 150 10 to 600m A1 200 to 1200 10 to 600m A2
  • Fluid conductivity characteristics graph Maximum cable length (m) 105 20 100 Fluid conductivity (µs/cm) EGS2000 EGS1000 / EGS4000 (Size 10 to 150mm) 1000 10000 100 1000 A2 A1 EGS4000 (Size 200 to 1200mm) [Excitation current cable] Cable length Nominal cross-section 0 to 150m 2 × 0.75 to 2.5mm2 150 to 300m 2 × 1.5 to 2.5mm2 300 to 600m 2 × 2.5mm2

MAGMAX Converter for Electromagnetic Flowmeter EGC050W 4 TOKYO KEISO CO., LTD. TG-F2430-E00 ELECTRICAL CONNECTION BETWEEN CONVERTER AND PRIMARY HEAD EGC050W (Wall installation type) Converter EGC050W Colors in ( ) show sheath color of cores. (R): Red, (W): White ≤100Ω Primary head EGS1000 EGS2000 EGS4000 Ground clamp 1 2 3 SS7 8 7891234 A C (R)(W) (W)(R) Terminal No. Description ● Cable A: DS cable for electrode signal (Exclusive cable) C: Excitation current cable 2c × 0.75 to 2.5mm2 with shield (Supplied by customer)

  • Terminal : Spring clamp terminal * Connect to the ground using the grounding wire from ground- ing terminal. (Supplied by customer) Electrode signal input2

4 Not used

7 Exciting current output8

9 Not used

MAGMAX Converter for Electromagnetic Flowmeter EGC050W TOKYO KEISO CO., LTD. 5 TG-F2430-E00 ELECTRICAL CONNECTION DIMENSIONS EGC050W Mark Terminal Polarity Description Ip A + Current output when power is supplied externally. A– ― Ia A ― Current output when power is supplied internally. A+ + Pp or Sp D + Pulse output or Status output by open collector D– ― Pw L (L+) （+） AC or DC power supply The ( ) show DC power.N (L–) （―） PE (FE) Grounding for power supply. The (FE) shows DC power. D+/S/B+/B/B– Not used

  • Terminal type : Spring clamp terminal
  • Applicable core size : 0.5 to 2.5mm2 IaIpPp/SpPw L PEN A+AA-D+DD-SB+BB- Grounding terminal (M5) 157 40 40 230（26） 120 190 150 140 For wall mounting (4-ø9) 185 170 R4.5 For 2 inch pipe mounting (4-ø9 long hole) Mass: Approx. 2.7kg

MAGMAX Converter for Electromagnetic Flowmeter EGC050W TG-F2430-E00 MODEL AND SPECIFICATION CODE Model : EGC050W Converter Spec. code V N 3 4 4 6 0 0 1 2 1 0 0 0 0 0 Description Standard Converter code V N 3 4 Type: EGC050W ○ (Fixed code) 4 always 4 ○ Type N Separate type ○ Power supply 1 24V DC (16 to 32 V) A 100 to 230 V AC (85 to 250 V) ○ Explosionproof specification 0 General type (Non-explosionproof) ○ Cable entry 4 1/2 NPT female thread

5 G1/2 female thread ○

6 M20 with watertight glands

(Fixed code) 6 0 0 always 600 ○ Housing 1 Standard ○ (Fixed code) 2 always 2 ○ Output type 1 Standard (Current output + Pulse output) ○ (Fixed code) 0 0 0 0 0 always 00000 ○ Special feature (Blank) None ○ /Z Involved *1 *1 Add code "/Z" to a series of above mentioned codes with explanation for the other requirements not mentioned above code table. Do not hesitate to consult TOKYO KEISO Co., Ltd. before ordering for such requirements. STANDARD ACCESSORIES

  • Parameter sheet : 1
  • Instruction manual : 1 OPTION
  • G1/2 watertight glands for cable entry : [Symbol : WG]
  • Metal fixtures for 2 inch pipe mount [Symbol : PM] ORDERING INSTRUCTIONS Specify the following when ordering : 1. Model and specification codes Example : Model : EGC050W Specification codes : VN344NA0560012100000 2. Full scale flow range and pulse rate. However, Unnecessary if [Symbol : NS] is specified. 3. Optional requirements will be added using above mentioned symbols if required. 4. Specify the length of DS cable with maximum 600m in 10m increments. Head Of/f_ice :Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558 Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922 * Speci/f_ication is subject to change without notice.