MAGMAXEGC050W
Converter for Electromagnetic Flowmeter

GENERALMAGMAX EGC050W is a highly-reliable separate type converter
for electromagnetic flowmeter with the simple design. The enhanced 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 combination 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 forbatch 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 indication.
❏ Equipped with a quick setup function to readily respond tochanged 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 shortbatch processes.

STANDARD SPECIFICATIONGeneral Specification● Primary head for: MAGMAX Series Primary head

combination		 EGS1000, EGS2000, EGS4000,● Excitation: Square wave

● Measuring range: Flow velocity						● Protection class

Min. 0 to 0.3m/s
Max. 0 to 12m/s: IP66/67 (IEC 60529)● Material

Housing :		Aluminum alloy *● Supply frequency: 48 to 63Hz (AC)● Power consumption: AC; approx. 15VA			 DC; approx. 6W● Ambient temp.			 –40 to +70°C (For storage)● Grounding

Converter cover :		Aluminum alloy *● 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) 		

: Grounding resistance must be less than100Ω.

( 1)
( 1)

: –40 to +65°C			 (For operation)● CableExclusive 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 terminal 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.

Note: Figures in ( ) show allowable voltage
range.
TG-F2430-E00
1st edition Jul 2024 K

MAGMAX Converter for Electromagnetic Flowmeter EGC050W

Indication and Output Specification

Standard Functions● Indicator : Dot matrix LCD (With backlight)● Customer’s free measuring unit setting function				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 outputs 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 VDCContents 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
A (A, A+ / A–)
D (D, D–)

Standard setup
Current output
Pulse output

Current output, Pulse output, Indicator (The outputs workin conjunction with each other.)		

● Automatic zero adjustment function		

ADJUST MODE" (Subject to zero flow)		

output and current.				

● Self-diagnosis function		

The following conditions are indicated by error message;		

Functional diagnosis :			 Coil disconnection, CPU, Memory, Software, Output
module, and Output connection		

and Power fail detection● Memory save function for power fail		

Operation parameters and totalization figures are stored formore than 10 years by EEPROM (Non volatile memory).

● Testing function		Simulating output function for current, pulse output andstatus 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 apulsating 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

( ± Flow velocity ×100% )0.00252) 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+ Flow velocity ×100% )0.001● Isolation of input and output

3.0Error ±% of reading

other.

Status diagnosis :			 Empty pipe detection, Over range, Counter over flow,

Current output, Pulse output, Indicator (The outputs worktion output, terminal A and terminal B are isolated eachSpecial frequency mode :			 1/50 to 1/2 times of supply frequency (*4)

Setting value : 0.0 to 20.0% FS

The circuits among power supply, electrode input, excita-Standard mode :			 1/6 of supply frequency (Standard)in conjunction with each other.)		

A flow-direction distinction signal is outputted in state● Excitation current frequency switching function● Damping time constant		Zero adjustment is automatically conducted at "ZERO● Bi-directional flow measurement function

Switchover byreprogramming—Status output●Low flow cutoff		

Volume (or mass) and time unit in 7 characters can be created.

2.5
1.5
1.0
0.5
0.0

2

TOKYO KEISO CO., LTD.

1）
2）

2.001

Velocity (m/s)

212TG-F2430-E00

MAGMAX Converter for Electromagnetic Flowmeter EGC050W● 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: 100sCABLE LENGTH BETWEEN PRIMARY HEAD AND CONVERTER[Electrode signal cable][Excitation current cable]
Cable length
0 to 150m
150 to 300m
300 to 600m

● The maximum length of electrode signal cablePrimary head
EGS1000EGS2000
EGS4000

DSMax. cable length
10 to 600m
10 to 600m
10 to 600m
10 to 600m
10 to 600m

Nominal size(mm)10 to 150
25 to 150
200 to 1200
10 to 150
200 to 1200

GraphA1
A1
A2
A1
A2

Nominal cross-section
2 × 0.75 to 2.5mm2
2 × 1.5 to 2.5mm2
2 × 2.5mm2● Fluid conductivity characteristics graph

1000

Maximum cable length (m)

A2

A1

100

1051020100

1000

10000

Fluid conductivity (µs/cm)
EGS2000
EGS1000 / EGS4000 (Size 10 to 150mm)
EGS4000 (Size 200 to 1200mm)

TG-F2430-E00

TOKYO KEISO CO., LTD.

3

MAGMAX Converter for Electromagnetic Flowmeter EGC050W

ELECTRICAL CONNECTION BETWEEN CONVERTER AND PRIMARY HEAD
EGC050W (Wall installation type)

Converter
EGC050W(R) (W)

7 8 S

1 2 3 SAC

Ground clamp
Primary head
EGS1000
EGS2000
EGS4000

4 3 2 1*9 8 7(W) (R)≤100Ω

Colors in ( ) show sheath color of cores.
(R): Red, (W): White

Terminal No.
1234
789S

Description
Electrode signal input
Not used
Exciting current output
Not used
ShieldGrounding

4TOKYO KEISO CO., LTD.

● 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 grounding terminal.
(Supplied by customer)

TG-F2430-E00

MAGMAX Converter for Electromagnetic Flowmeter EGC050W

ELECTRICAL CONNECTION

LN

B- B B+ S D- D D+ A- A A+PE

Pw

Mark

Pp/Sp

Terminal

Polarity

A+

A–

―

Ip
Ia
Pp or SpPw

A―A++D+

D–―L (L+)（+）

N (L–)（―）

PE (FE)

Description
Current output when power is suppliedexternally.
Current output when power is suppliedinternally.
Pulse output or Status output by open collector
AC or DC power supply
The ( ) show DC power.
Grounding for power supply. The (FE) shows DC power.

D+/S/B+/B/B–● Terminal typeIp Ia

Not used: Spring clamp terminal● Applicable core size : 0.5 to 2.5mm2DIMENSIONS
EGC050W

185

157

170
7012（26）

60
40

40

40

140

150

190

230.5

R4

For 2 inch pipe mounting(4-ø9 long hole)
For wall mounting (4-ø9)

120
Grounding terminal (M5)

Mass: Approx. 2.7kgTG-F2430-E00

TOKYO KEISO CO., LTD.

5

MAGMAX Converter for Electromagnetic Flowmeter EGC050W

MODEL AND SPECIFICATION CODE
Model : EGC050W
Converter Spec. code V N 3 4 4Converter code
VN34(Fixed code)
4TypeNPower supply
Explosionproof specification
Cable entry(Fixed code)
Housing(Fixed code)
Output type
(Fixed code)
Special feature

600 1 2 1 00000

Description
Type: EGC050W
always 4
Separate type1
24V DC (16 to 32 V)
A
100 to 230 V AC (85 to 250 V)
0General type (Non-explosionproof)
41/2 NPT female thread
5G1/2 female thread
6
M20 with watertight glands
600
always 600
1Standard2
always 2
1
Standard (Current output + Pulse output)
00000
always 00000(Blank) None/Z Involved *1

Standard○
○
○
○
○
○
○
○
○
○
○
○

*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 ACCESSORIESORDERING INSTRUCTIONS● Parameter sheet

Specify the following when ordering ::1● Instruction manual : 11. Model and specification codes
Example : Model : EGC050W		OPTION

Specification codes : VN344NA0560012100000

2. Full scale flow range and pulse rate.

● G1/2 watertight glands for cable entry : [Symbol : WG]● Metal fixtures for 2 inch pipe mount [Symbol : PM]

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.

* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : https://www.tokyokeiso.co.jp
6TG-F2430-E00