Endress+Hauser PROline promag 50 w, PROline promag 53 W Technical Information
Technical
The PowerofKnowHo w
Information
TI 046D/24/ae
Electromagnetic
Flow Measuring System
PROline promag 50/53 W
Flow measurement in
water or wastewater applications
Features and benefits
• Nominal diameters 1” to 78”
• Hard rubber or polyurethane liners
• PFA for high-temperature applications up to +355°F (+180°C)
• Fitting lengths to ISO and DVGW
• High measuring accuracy for
improved process control:
– Promag 50: ± 0.5%
(option: ± 0.2%)
– Promag 53: ± 0.2%
• Robust field housing, NEMA 4X
(IP 67)
• NEMA 4X (IP 67) wall-mount housing
for straight-forward installation of the
remote version
• NEMA 6P (IP 68) sensor version
• Promag 53 with Touch Control:
operation without opening the
housing - also for explosion proof
applications
• Expandable software packages:
– electrode cleaning
– pulsating flow
• Quick setup menus for straightforward commissioning in the field
• Potable-water approvals:
KTW , WRC, etc.
• Interfaces for integration into all
major process-control systems:
– HART
®
interface as standard
– Promag 50: PROFIBUS-PA
– Promag 53: PROFIBUS-PA/-DP,
FOUNDATION fieldbus
• Explosion proof approval for
installation in Division 1 (FM, CSA,
A TEX, etc.)
Application
All fluids with a minimum conductivity of
≥ 5 µS/cm can be measured:
• Drinking water
• Wastewater
• Wastewater sludge, etc.
A minimum conductivity of ≥ 20 µS/cm is
required for measuring demineralized
water.
Liner specific applications
• Polyurethane lining for applications
with cold water and for slightly
abrasive fluids
• Hard rubber lining for all applications
with water (especially for drinking
water)
Function and system design
Promag 50/53 W
Measuring principle
Faraday’s law of induction
states that a voltage is induced in a conductor moving in a
magnetic field.
In electromagnetic measuring, the flowing medium corresponds to the moving
conductor. The induced voltage is proportional to the flow velocity and is detected by
two measuring electrodes and transmitted to the amplifier. Flow volume is computed
on the basis of the pipe’s diameter. The constant magnetic field is generated by a
switched direct current of alternating polarity.
I
V
I
Measuring system
Ue = B · L · v
Q = A · v
U e = induced voltage
B = magnetic induction (magnetic field)
L = electrode gap
v = flow velocity
Q = volume flow
A = pipe cross-section
I = current strength
The measuring system consists of a transmitter and a sensor.
Two versions are available:
• Compact version: transmitter and sensor form a single mechanical unit.
• Remote version: transmitter and sensor are installed separately.
Transmitter:
• Promag 50 (user interface with push buttons for operation, two-line display)
• Promag 53 (“Touch Control” without opening the housing, four-line display)
Sensor:
• Promag W, 1” to 78” (DN 25 to 2000)
2
Endress+Hauser
Promag 50/53 W
Input
Measured variable
Measuring range
Operable flow range
Input signal
Output signal
Flow rate (proportional to induced voltage)
Typically v = 0.033 to 33 ft/s (0.01 to 10 m/s) with the specified measur ing accuracy
Over 1000 : 1
Status input (auxiliary input):
U = 3 to 30 V DC, R
Configurable for: totalizer(s) reset, measured-value suppression, error-message
= 5 kΩ, galvanically isolated.
i
reset
Current input (for Promag 53 only):
Active/passive selectable, galvanically isolated, full scale value selectable,
µ
resolution: 3
A
Temperature coefficient: typically 0.003% o.r./°F (0.005% o.r./°C) (o.r = of reading)
Active: 4 to 20 mA, Ri ≤ 150 Ω, U
Passive: 0/4 to 20 mA, Ri ≤ 150 Ω, U
= 24 VDC, short-circuit proof
out
= 30 VDC
max
Output
Promag 50
Current output:
Active/passive selectable, galvanically isolated, time constant selectable
(0.01 to 100 s), full scale value selectable, temperature coefficient: typically
0.003% o.r./°F (0.005% o.r./°C); resolution: 0.5 µA
• active: 0/4 to 20 mA, R
• passive: 4 to 20 mA, max. 30 V DC, Ri ≤ 150 Ω
< 700 Ω (HART®: RL ≥ 250 Ω)
L
Pulse/frequency output:
Passive, open collector, 30 V DC, 250 mA, galvanically isolated.
Frequency output:
pulse width max. 10 s
Pulse output:
full scale frequency 2 to 1000 Hz (f
= 1250 Hz), on/off ratio 1:1,
max
pulse value and pulse polarity selectable, max. pulse width
configurable (0.5 ms to 2 s), maximum pulse frequency selectable
PROFIBUS-PA interface
• PROFIBUS-PA in accordance with EN 50170 Volume 2, IEC 61158-2 (MPB),
galvanically isolated
• Current consumption: 11 mA
• Permissible supply voltage: 9 to 32 V
• FDE (Fault Disconnection Electronic): 0 mA
• Data transmission rate, supported bauderate: 31.25 kBit/s
• Signal encoding: Manchester II
• Function blocks: 1 x Analog Input, 1 x Totalizer
• Output data: Volume flow , Totalizer
• Input data: Positive zero return (ON/OFF), Control totalizer, Value for local display
• Bus address adjustable via DIP switches at the measuring device
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3
Promag 50/53 W
Promag 53
Current output:
Active/passive selectable, galvanically isolated, time constant selectable
(0.01 to 100 s), full scale value selectable, temperature coefficient: typically
0.003% o.r./°F (0.005% o.r./°C); resolution: 0.5 µA
• active: 0/4 to 20 mA, R
• passive: 4 to 20 mA, max. 30 V DC, Ri ≤ 150 Ω
< 700 Ω (HART®: RL ≥ 250 Ω)
L
Pulse/frequency output:
Active/passive selectable, galvanically isolated (I.S. version: passive only)
• active: 24 V DC, 25 mA (max. 250 mA during 20 ms), R
• passive: open collector, 30 V DC, 250 mA
Frequency output:
full scale frequency 2 to 10,000 Hz (f
on/off ratio 1:1, pulse width max. 10 s
Pulse output:
pulse value and pulse polarity selectable, pulse width configurable
> 100 Ω
L
= 12,500 Hz),
max
(0.05 ms to 2 s), on/off ratio is 1:1 as of a frequency of 1 / (2 x pulse width)
PROFIBUS-DP interface:
• PROFIBUS-DP/PA in accordance with EN 50170 Volume 2, IEC 61158-2 (MPB),
galvanically isolated
• Data transmission rate, supported baudrate: 9.6 kBaud to 12 MBaud
• Automatic data transmission rate recognition
• Signal encoding: NRZ-Code
• Function blocks: 2 x Analog Input, 3 x Totalizer
• Output data: Volume flow, Corrected volume flow, Totalizer 1 to 3
• Input data: Positive zero return (ON/OFF), Totalizer control, Value for local display
• Bus address adjustable via DIP switches at the measuring device
PROFIBUS-PA interface:
• PROFIBUS-PA in accordance with EN 50170 Volume 2, IEC 61158-2 (MPB),
galvanically isolated
• Current consumption: 11 mA
• Permissible supply voltage: 9 to 32 V
• Data transmission rate, supported baudrate: 31.25 kBit/s
• Error current FDE (Fault Disconnection Electronic): 0 mA
• Signal encoding: Manchester II
• Function blocks: 2 x Analog Input, 3 x Totalizer
• Output data: Volume flow, Corrected volume flow, Totalizer 1 to 3
• Input data: Positive zero return (ON/OFF), Totalizer control, Value for local display
• Bus address adjustable via DIP switches at the measuring device
FOUNDATION Fieldbus interface:
• FOUNDATION Fieldbus H1, IEC 61158-2 (MBP), galvanically isolated
• Current consumption: 12 mA
• Permissible supply voltage: 9 to 32 V
• Error current FDE (Fault Disconnection Electronic): 0 mA
• Data transmission rate, supported buadrate: 31.25 kBit/s
• Signal encoding: Manchester II
• Function blocks: 5 x Analog Input, 1 x Discrete Output, 1 x PID
• Output data: Volume flow, Corrected volume flow, Totalizer 1 to 3
• Input data: Positive zero return (ON/OFF), Reset totalizer
• Link Master (LM) functionality is supported
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Promag 50/53 W
Signal on alarm
Load
Switching output
Low flow cutoff
Galvanic isolation
• Current output → failure response selectable
• Pulse/frequency output → failure response selectable
• Status output (Promag 50) → non-conductive by fault or power supply failure
• Relay output (Promag 53) → de-energized by fault or power supply failure
See “Output signal”
Status output (Promag 50):
Open collector, max. 30 V DC / 250 mA, galvanically isolated
Configurable for: error messages, Empty Pipe Detection (EPD), flow direction, limit
values
Relay output (Promag 53):
Normally closed (NC or break) or normally open (NO or make) contacts available
(default: relay 1 = NO, relay 2 = NC),
max. 30 V / 0.5 A AC; 60 V / 0.1 A DC, galvanically isolated.
Configurable for: error messages, Empty Pipe Detection (EPD), flow direction, limit
values, batching contacts
Switch points for low flow cutoff are selectable
All circuits for inputs, outputs, and power supply are galvanically isolated from each
other.
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Electrical connection
measuring unit
Power supply
b
a
Promag 50/53 W
−27
f
+26
−25
e
+24
−23
+22
−21
+20
b
d
N (L-)
g
L1 (L+)
2
1
c
a
N (L-)
L1 (L+)
1
222320
21 24
+ − + − + − + −
2
27
26
25
e
f
a
b
Top: field housing
Bottom: wall-mount housing
a Cable for power supply: 85 to 260 VAC, 20 to 55 VAC, or 16 to 62 VDC; power consumption: 15 VA / 15 W
Terminal No. 1: L1 fo AC, L+ for DC
Terminal No. 2: N for AC, L- for DC
b Signal cable: terminals No. 20 to 27 ´® see Page 8
c Grounding terminal for protective conductor
d Grounding terminal for signal-cable shield
e Service connection for connecting service interface FXA 193 (FieldChec k, ToF T ool-Field Tool Package)
f Cover for wiring compartment
g Cover securing clamp
cda
b
Endress+Hauser6
Promag 50/53 W
Electrical connection
Measuring unit (bus communication)
f
DP (A)/PA (–)/FF (–)
DP (B)/PA (+)/FF (+)
b
g
e
a
h
N (L–)
L1 (L+)
Esc
-
+
E
(DGND)
(+5 V)
N (L-)
L1 (L+)
2
1
27
26
25
24
23
22
21
20
2
1
222320 21 242526
27
b
d
g
c
a
(+5 V)
(DGND)
DP (B)/PA (+)/FF (+)
DP (A)/PA (–)/FF (–)
e
f
cd
a
bg
a
g
b
T op: Field housing
Bottom: Wall-mount housing
a Cable for power supply: 85 to 260 VAC, 20 to 55 VAC, or 16 to 62 VDC; power consumption:15 VA / 15 W
Terminal No. 1: L1 fo AC, L+ for DC
Terminal No. 2: N for AC, L- for DC
b Fieldbus cable:
Terminal No. 26: DP (B) / PA (+) / FF (+) (with polarity protection)
Termianl No. 27: DP (A) / PA (-) / FF (-) (with reverse polarity protection)
DP (A) = RxD/TxD-N; DP (B) = RxD/TxD-P
c Grounding terminal for protective conductor
d Grounding terminal for signal-cable shield
e Service connector for connecting service interface FXA 193 (FieldChec k, ToF T ool-Field Tool Package)
f Cover for connection compartment
g Cable for external termination (PROFIBUS only)
h Cover securing clamp
Endress+Hauser 7
Promag 50/53 W
Terminal assignment Promag 50
Terminal No. (inputs / outputs)
Order variant 20 (+) / 21 (-) 22 (+) / 23 (-) 24 (+) / 25 (-) 26 (+) / 27 (-)
50***-***********W - - - Current output
HART
50***-***********A - - Frequency output Current output
HART
50***-***********D Status input Status output Frequency output Current output
HART
50***-***********S - - Frequency output Current output
IS, passive HART
50***-***********T - - Frequency output Current output
Intrinsically Safe HART
®
®
®
®
®
Ground connection, power supply → refer to illustration on top of page 6
Terminal assignment Promag 53
The inputs and outputs on the communication board can be either permanently
assigned or variable, depending on the version ordered (see table). Replacement
for modules which are defective or which have to be replaced can be ordered as
accessories.
Terminal No. (inputs / outputs)
Order variant 20 (+) / 21 (-) 22 (+) / 23 (-) 24 (+) / 25 (-) 26 (+) / 27 (-)
Fixed communication boards (fixed assignment)
53***-***********A - - Frequency output Current output
HART
53***-***********B Relay output 2 Relay output 1 Frequency output Current output
HART
53***-***********F - - - Profibus-PA
IS
53***-***********G - - - Foundation
Fieldbus IS
53***-***********H - - - Profibus-PA
53***-***********J - - - Profibus-DP
53***-***********K - - - Foundation
Fieldbus
53***-***********S - - Frequency output Current output
Intrinsically safe IS, active
HART
53***-***********T - - Frequency output Current output
Intrinsically safe IS, passive
HART
®
®
®
®
8
Flexible communication boards
53***-***********C Relay output 2 Relay output 1 Frequency output Current output
HART
53***-***********D Status input Relay output Frequency output Current output
HART
53***-***********L Status input Relay output 2 Relay output 1 Current output
HART
53***-***********M Status input Frequency output 2 Frequency output 1 Current output
HART
53***-***********2 Relay output Current output 2 Frequency output Current output
1 HART
53***-***********4 Current input Relay output Frequency output Current output
HART
53***-***********5 Status input Current input Frequency output Current output
HART
®
®
®
®
®
®
®
Ground connection, power supply → refer to illustration on top of page 6
Endress+Hauser
Promag 50/53 W
Electrical connection
remote version
Electrode Circuit
EPDMeas.signal Pipe
Cable entry
Cable specifications
remote version
Esc
-
+
E
n.c. = cable shields to be isolated and not to be connected
S1
6
n.c. n.c.n.c.
5
brown
E2
7
white
5
E1E1E2
S2
8
7
4
green
4
E
GND
373736
yellow
GND
S
E
Coil circuit
424241
2
1
41
Power-supply and signal cables (inputs/outputs):
• 1/2" NPT
Connecting cable for remote version:
• 1/2" NPT
Coil cable:
• 2 x 18 AWG (0.75 mm2) PVC cable with common, braided copper shield,
approximately 0.28” diameter (Ø approx. 7 mm)
• Conductor resistance: ≤ 0.011 Ω/ft (37 Ω/km)
• Capacitance: core/core, shield grounded: ≤ 36 pF/ft (120 pF/m)
• Permanent operating temperature: -5° to +180°F (–20 to +80°C)
• Cable cross-section: maximum 16 AWG (2.5 mm2)
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Signal cable:
• 3 x 20 AWG (0.38 mm
2
) PVC cable with common, braided copper shield,
approximately 0.28” diameter (Ø approx. 7 mm) and individually shielded cores.
• With Empty Pipe Detection (EPD): 4 x 20 AWG (0.38 mm2) PVC cable with
common, braided copper shield, approximately 0.28” diameter (Ø approx. 7 mm)
and individually shielded cores.
• Conductor resistance: ≤ 0.015 Ω/ft (50 Ω/km)
• Capacitance: core/shield: ≤ 128 pF/ft (420 pF/m)
• Permanent operating temperature: -5° to +180°F (–20 to +80 °C)
• Cable cross-section: maximum 16 AWG (2.5 mm2)
1
2
3
4
5
6
7
a
a = signal cable, b = coil current cable (maximum 16 AWG (2.5 mm2)
1 = Core 5 = Core strengthening
2 = Core insulation 6 = Cable shield
3 = Core shield 7 = Outer jacket
4 = Core jacket
b
9
Promag 50/53 W
Endress+Hauser optionally supplies reinforced connecting cables with an additional
metal braid. We recommend such cables for the following cases:
• Underground laid cables
• Danger of rodent attack
• Device used with NEMA 6P (IP 68) ingress protection
Operation in areas of severe electrical interference:
The measuring device complies with the general safety requirements in accordance
with EN 61010, the EMC requirements of EN 61326, and NAMUR recommendation
NE 21.
Caution:
Grounding is by means of the ground terminals provided for that purpose inside the
connection housing. Keep the stripped and twisted lengths of cable shield to the
terminals as short as possible.
Supply voltage
Power consumption
Power supply failure
Potential equalization
85 to 260 VAC, 45 to 65 Hz
20 to 55 VAC, 45 to 65 Hz
16 to 62 V DC
PROFIBUS-PA and FOUNDATION Fieldbus
Nonhazardous: 9 to 32 VDC
Intrinsically safe: 9 to 24 VDC
Explosion proof: 9 to 32 VDC
AC: <15 VA (including sensor)
DC: <15 W (including sensor)
Switch-on current:
• maximum 13.5 A (< 50 ms) at 24 V DC
• maximum 3 A (< 5 ms) at 260 V AC
Lasting minimum 1 power cycle:
• EEPROM or T-DAT™ (Promag 53 only) retain the measuring-system data in the
event of a power supply failure
• S-DAT™ = exchangeable data storage chip which stores the data of the sensor:
nominal diameter, serial number, calibration factor, zero point, etc.
Standard case
Perfect measurement is only ensured when the medium and the sensor have the
same electrical potential. Most Promag sensors have a standard installed reference
electrode which guarantees the required potential matching. This usually means that
additional potential matching measures are unnecessary.
NOTE: For installation in metal pipes, it is advisable to connect the ground terminal
of the transmitter housing to the piping.
Caution:
For sensors without reference electrodes or without metal process terminals, carry
out potential matching as per the instructions for special cases described below.
These special measures are particularly important when standard grounding
practice cannot be ensured or extremely strong matching currents are expected.
Endress+Hauser10
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