KROHNE GFM 700 K User manual

 KROHNE 06/2003 7.30937.32.00
GR
Variable area flowmeters
Vortex flowmeters
Flow controllers
Electromagnetic flowmeters
Ultrasonic flowmeters
Mass flowmeters
Level measuring instruments
Communications technology
Engineering systems & solutions
Switches, counters, displays and recorders
Heat metering
Pressure and temperature
Installation and
operating instructions
GFM 700 K
GFM 700 F
GFM 700 F - EEx ATEX
GFM 700 F/HT- EEx ATEX
Ultrasonic gas flowmeter

2
General advice on safety
Safety instructions
This product is designed for use in accordance with EN IEC 61010-1 for Installation Category 2 and Pollution
Degree 2. Hazardous voltages are present within this product during normal operation. The product is designed
for Protection Class I and should never be operated without protective earthing. The product shall also never be
operated with covers removed unless equivalent protection of the operator and its environment from accidental
contact with hazardous internal voltages is provided. Always follow basic and local safety precautions when
using this product to reduce risk of injury from electrical shock, spread of fire or other dangerous situations.
1. Do not install, maintain or operate this flow meter without reading, understanding and following the factory-supplied
instructions and manuals, otherwise injury or damage may result.
2. Read these instructions carefully before starting installation. Save these instructions for future reference.
3. Observe all warnings and instructions marked on the product
4. Use only mains supply with protective earthing connected
5. Do not use the product with removed covers under wet conditions
6. Consider handling and lifting instructions to avoid damage
7. Install the product securely and stable
8. Install and connect cabling proper to exclude damage or harmful situations
9. If the product does not operate normally refer to qualified KROHNE service technicians
10. Ther are no operator serviceable components inside the product
The following symbols may appear in this manual or on the product :
Attention : refer to the manual
DANGER : risk of electrical shock
PROTECTIVE conductor terminal
WARNING
Warning statements identify conditions or practice that could result in injury loss of live
CAUTION
Caution statements identify conditions or practice that could result in damage to the product
or other property
Declarations of Conformity / Statement of Compliance
Low Voltage directive
The product complies with the requirements of the Low Voltage Directive 73/23/EEC and is designed in accordance with
EN IEC 61010-1 first and second edition. (safety requirements for electrical equipment for measurement, control and
laboratory use part 1) Local safety regulations shall be observed in combination with the measures special to this
product to avoid dangerous situations

3
Unpacking and inspection
This product has been thoroughly inspected and tested before shipment and is ready for operation.
After carefully unpacking, inspect for shipping damage before attempting to operate. If any indication of mechanical damage is
found contact immediate the responsible transport service and your local KROHNE representative.
A simple operating check of the electronics after unpacking and before permanent installation, is advisable to ascertain whether it
has suffered damage during shipment. Confirm for the correct mains voltage printed on the nameplate. If it differs from the
ordered product please contact your local KROHNE representative.
After connecting to the mains, check if there is any indication on the display and if the backlight of the display is lighted. If not
contact your local KROHNE representative for advise.
Disclamer
This document contains important information of the product. KROHNE attempts to be as accurate and up-to-date as possible but
assumes no responsibility for errors or omissions. Nor does KROHNE make any commitment to update the information contained
herin. This manual and all other documents are subject to change without notice. KROHNE will not be liable for any damage of
any kind by using its product, including, but not limited to direct, indirect, incidental, punitive and consequential damages. This
disclamer does not apply in case KROHNE has acted on purpose or with gross negligence. In the event any applicable law does
not allow such limitations on implied warranties or the exclusion of limitation of certain damages, you may, if such law applies to
you, not be subject to some or all of the above disclamer, exclusions or limitations. Any product purchased from KROHNE is
warranted in accordance with the relevant product documentation and our Terms and Conditions of Sale. KROHNE reserves the
right to alter the content of its documents, including this disclamer in any way, at any time, for any reason, without prior
notification, and will not be liable in any way for possible consequences of such changes.
CAUTION
There are no operator servicable parts or adjustments within the product enclosure
Refer all servicing to trained service technicians
Source power shall be removed from the product to perform any servicing
This product is prepared for the nominal AC mains voltage indicated on its tagplate. To reconfigure
the product power input for other mains voltages as listed in the chapter Technical data, the product
must be modified including the fuses by a trained service technician. After a power input
reconfiguration the tagplate needs to be adapted.
This product is a Class 1 device, (earthed which utilizes a proper connection to the protective earthing
for protection from electrical shock to ensure operator and its environmental safety.
The protective conductor terminal of the product shall be properly connected to the protective earth
wiring of the source power to ensure safety from electrically shock. See instruction manual
Protective earthing conductor terminal.
This symbol indicates the point on the product to which the protective earthing conductor shall be
connected. It is positioned near the terminal block, inside the terminal compartmen. The diameter of
the protective earthing conductor shall be in accordance with the Low Voltage Directive.
Manufacturer
The GFM 700 is developed and manufactured by
KROHNE Altometer
Kerkeplaat 12
3313 LC Dordrecht, The Netherlands

4
Content
1 GFM 700 Ultrasonic gas flowmeter 5
2 Size, flow velocity, flowrate 5
3 Measuring principle 6
4 Technical data 7 – 10
4.1 Versions, full-scale ranges, accuracies 7
4.2 GFS 700 Primary head 7
4.3 GFC 700 Signal converter 8 – 9
4.4 Environmental conditions 9
4.5 Dimensions and weights 10
5 Installation notes 11
6 Electrical 11
6.1 Electrical connections 11
6.2 Electrical installation to the main supply voltage 11
7 Operation of the signal converter 12 – 20
7.1 Table of settable functions 12 – 18
7.2 Error messages 19 – 20
8 Addition for the GFM 700 F-EEx ATEX and
GFM 700 HT EEx-ATEX
20 – 30
8.1 General 21
8.2 System components 21 – 22
8.3 Electrical connection 23 – 28
8.4 Connecting cables 29
8.5 Connection diagram 30
9 ATEX approvals 31 – 36
9.1 GFC 700 F - EEx Signal converter 31 – 33
9.2 GFS 700 F - EEx Primary head (flowmeter) 34 – 36

5
1 GFM 700 Ultrasonic gas flowmeter
First ultrasonic gas flowmeter
with two beams
Non-contact ultrasonic gas flow measurement
and volume counting, suitable for
all gases available meter sizes DN 50-600
and 2”-24”.
Wide range of application
The large range of products that can be
measured accurately and easily make this a
truly universal device. Just a few examples:
Natural gas
• Air
• Methane
• Nitrogen
• Determination of the molecular weight of
gases
• Measurement in hazardous locations, Zones 1 and 2
Calibrated on EN 17025 accredited calibration rigs,
calibration accuracy better than 99.97% of the
measured value.
2 Size, flow velocity, flowrate
Selection of meter size / nominal pipe size
Flow velocitys in m/s or ft/s and the flowrate in m3/h or
US Gal / min can be determinded for each meter size
(DN) using the Tables below.
Precise determination of flow velocities
For range setting, use the flow table below to determine
the precise flow velocity for each nominal pipe size.
Example: v in m/s Example: v in ft/s
Nominal pipe size DN 150
Required measuring range 1000 m3/h
Nominal pipe size 6”
Required measuring range 5000 US Gal / min
For a flow velocity of 1 m/s at DN 150,
the table gives a flowrate of 63.617 m3/h.
For 1000 m3/hr, the flow velocity v is thus
For a flow velocity of 3.3 ft/s at 6’’,
the table gives a flowrate of 280.11 gal/min.
For 5000 Gal / min, the flow velocity v is thus
1000 m3/h x 1 m/s
v = -------------------------- = 15.72 m/s
63.617 m3/h
5000 US / min x 3.3 ft/s
v = ---------------------------------- = 58.91 ft/s
280.11 US Gal / min
Flowtable for v = 1 m/s Flowtable for v = 10 ft/s
Meter size Flow Meter size Flow
in mm in inches m3/h in inches in mm US Gal/min
DN 50 2 7.0686 2 DN 50 31.13
DN 65 2 ½ 11.946 3 DN 80 79.68
DN 80 3 18.096 4 DN 100 124.49
DN 100 4 28.274 5 DN 125 194.52
DN 125 5 44.179 6 DN 150 280.11
DN 150 6 63.617 8 DN 200 497.98
DN 200 8 113.10 10 DN 250 778.05
DN 250 10 176.71 14 DN 350 1525.0
DN 300 12 254.47 16 DN 400 1991.9
DN 350 14 346.36 20 DN 500 3112.8
DN 400 16 452.39 24 DN 600 4418.8
DN 500 20 706.86
DN 600 24 1017.9

6
3 Measuring principle
All KROHNE ultrasonic flowmeters operate using the
transit-time differential method.
Transit-time differential measurement is based on a
simple physical fact.
Imagine two canoes crossing a river on the same
diagonal line, one with the flow and the other against the
flow. The canoe moving with the flow needs much less
time to reach the opposite bank.
Ultrasonic waves behave exactly the same way. A sound
wave travelling in the direction of flow of the product is
propagated at a faster rate than one travelling against the
flow (vAB > vBA).
Transit times tAB and tBA are measured continuously. The
difference (tBA - tAB) in time travelled by the two ultrasonic
waves is directly proportional to the mean flow velocity
(vm) of the product.
The volumetric flowrate per unit time is the product of the
mean flow velocity (vm) multiplied by the pipe cross-
section.
A liquid product is identified by direct measurement of the
transit time of ultrasonic waves. Assuming the same path
length (L), the transit time in water is shorter than in crude
oil, for example.
Propagation rate
of ultrasonic waves . . .
Transit time
of ultrasonic waves …
… in direction of flow
of product from sensor A to B
vAB = co+ vmx cosϕ
L
tAB = ---------------------
co+ vmx cosϕ
… counter to direction of flow
of product
from sensor A to B
vBA = co– vm × cosϕ
L
tAB = --------------------
co- vmx cosϕ
with the given product
flow direction
vAB > vBA tAB < tBA
mean flow velocity vm
of liquid product
(tBA – tAB)
vm= GK x ---------------
(tAB x tBA)
A (A’) Sensor A, transmitter and receiver
tAB Transit time of ultrasonic waves
from sensor A to sensor B
B (B’) Sensor B, transmitter and receiver tBA Transit time of ultrasonic waves
from sensor B to sensor A
coSound velocity in the product vAB Propagation rate of ultrasonic waves between
sensor A and sensor B
GK A calibration constant vBA Propagation rate of ultrasonic waves between
sensor B and sensor A
L Length of measuring beam,
distance between sensors A and B
vmMean flow velocity of liquid product
ϕ Angle between pipe axis and
measuring beam

7
4 Technical data
The responsibility as to the suitability, intended use and corrosion-resistanc
of the materials used in their construction rests solely with the purchaser.
4.1 Versions, full-scale ranges, accuracies
Versions Primary head (S) Signal converter (C)
GFM 700 K integral system GFS 700 K GFC 700 K
GFM 700 F remote system GFS 700 F GFC 700 F
GFM 700 F-EEx GFS 700 F-EEx GFC 700 F - EEx
(Ex versions (remote system)) Approval to ATEX (Ex II 2 G) signal converter is installed
EEX de IIC T6 oder EEx d IIC T6 in non hazardous area
DEMKO Nr. 00ATEX2118 X
Full-scale ranges (configurable) Q100% volume flow v100% flow velocity
Standard 14 – 25000 m3/h
60 – 88000 US Gal/min
2 – 25 m/s
6.6 – 80 ft/s
Option 14 – 30000 m3/h
60 – 156000 US Gal/min
2 – 30 m/s
6.6 – 100 ft/s
Error limits
Accuracy
DN ≥80 / ≥3” v < 2 m/s ± 0.04 m/s (± 0.13 ft/s)
v ≥2 m/s ± 2% of measured value
DN ≤65 / ≤1½” ± 2% of measured value + 0.04 m/s
(± 2% of measured value + 0.13 ft/s)
Repeatability ± 0.5% of measured value
4.2 GFS 700 Primary head
Diameter DN 50 – 600 / 2” – 24” (option DN 700 – 1200 / 28” – 48”)
Flange connections Pressure rating (standard)
to DIN 2501 DN 50, DN 80: PN 40 40 bar / 580 psig
DN 65, DN 100 – 150: PN 16 16 bar / 230 psig
DN 200 – 600: PN 10 10 bar / 150 psig
to ANSI B 16.5 2” – 24”: Class 150 lb / RF 19 bar / 275 psig
Special versions max. 100 bar / 900 lb
Max. operating data Gas-Temperature Operating pressure
Integral systems standard option
Ambient temperature ≤40°C / ≤104°F ≤140°C / 284 °F ≤25 bar / 360 psig ≤40 bar / 580 psig
Ambient temperature ≤60°C / ≤140°F ≤60°C / 140 °F ≤25 bar / 360 psig ≤40 bar / 580 psig
Remote systems ≤180°C / 356 °F ≤25 bar / 360 psig ≤40 bar / 580 psig
Hazardous-duty versions ≤180°C / 356 °F ≤20 bar / 300 psig –
Max. allowable flow velocity ≤25 m/s / ≤80 ft/s, optionally ≤30 m/s / ≤100 ft/s
Max. allowable meter size (DN) DNmax [mm] = 200 x ρGas [kg/m3] or [inches] = 0.47 x ρgas [lb/ft3]
as a function of process product Density ρGas in kg/m3 or in [lb/ft3]
Protection category (IEC 529 / EN 60529) IP 65 equivalent to NEMA 4 and 4X
Materials
Measuring tube and flanges
Standard DN 50-300 2“-12“ SS 1.4301 (measuring tube) and steel (flanges)
DN 350-600 14“-24“ steel
Option DN 50-600 2“-24“ SS 1.4404
DN 50-600 (only DIN) SS 1.4571
Ultrasonic sensors SS 1.4301
Gaskets Viton

8
4.3 GFC 700 Signal converter
Versions
Integral systems (K) GFC 700 K signal converter mounted on primary head
Remote systems (F) GFC 700 F signal converter with wall mount (rotating design) and
additional terminal box
Option MP signal converter equipped with magnet sensors, to set the signal
converter by means of hand held bar magnet without opening the
housing
Power supply 1. AC Version AC / DC Version
Standard Option
1. Rated voltage 115 / 230 V 24 V AC 24 V DC
Tolerance band +/- 13 % 20 – 27 V AC 18 – 32 V DC
Frequency 48 – 63 Hz 48 – 63 Hz –
Power consumption Max. 13 VA approx. 10 VA approx. 8 W
(incl. primary head) When connected to functional extra-low voltage (24 V) safety separation (PELV) is essential
to VDE 0100 / VDE 0106 and IEC 364 / IEC 536 or equivalent national standards.
Analog Output
• continuous flowrate measurement or measurement of sound velocity
to determine (composition of) liquid product
• all operating data configurable
• galvanically isolated
• for active and passive mode
Function
• useable as internal power supply for the binary outputs
Current for Q = 0%: 0 – 16 mA
for Q = 100%: 4 – 20 mA
settings in 1 mA increments
(Imax = 22 mA)
Active mode load max. 680 Ohm
Passive mode external voltage ≤18 V DC
load ≤680 Ohm
Low-flow cutoff cutoff “on” value 1 – 19%
cutoff “off” value 2 – 20%
of Q100%,
setting in 1% increments
Time constant 0.04 – 3600 s, setting in increments of 1, 0.1 or 0.01 s
Forward / reverse measurement direction identified via status output (or pulse output)
Internal power supply for binary outputs Uint = 19 – 32 V DC / I ≤50 mA
Pulse output
Function – continuous flow counting or measurement of sound velocity
to determine (composition of) liquid product
– all operating data configurable
– galvanically isolated
– active and passive mode
Pulse rate for Q = 100% 10 – 3600000 pulses/h
0,167 – 60000 pulses/min
0.0028 – 1000 pulses/s (= Hz)
optionally in pulse per liter, m3,
US gallons or user-defined unit
Pulse width automatic: pulse duty cycle 1:1, max. 1000 Pulse/s = max. 1000 Hz
variable: 30, 50, 100, 200, 500 ms, ≤10 Pulse/s ≤10 Hz
Active mode connection: electronic totalizer
internal voltage: 19 – 32 V DC, from current output
load current:
Imax < 50 mA, operation with status
output
Passive mode connection: electronic or electromechanical totalizer
external voltage: Uext ≤32 V DC / ≤24 V AC
load current: Imax ≤150 mA
Low-flow cutoff cutoff “on” value: 1 – 19%
cutoff “off” value: 2 – 20% of Q100%, setting in 1% increments
Time constant 0.04 – 3600 s, setting in increments of 1, 0.1 or 0.01 s
Forward / reverse measurement
direction identified via status output or current output (status output only
available in non-EEx version)

9
Local display 3-field LCD
Display function actual flowrate, measurement of sound velocity to determine (compo-
sition of) liquid product, forward, reverse and sum totalizer (7-digit) and
status messages; each can be set for continuous or sequential display
Units: actual flowrate m3, liter, US gallons per second, minute or hour,
or in user-defined unit, e.g. liter/h or US gallon/day
totalizer m3, liter, US gallons or in user-defined unit, e.g. hecto liter or US million
gallon (min. 1 year overflow time)
Language of plain texts English, French, German, Dutch, other on request
Display 1st line (top) 8-character, 7-segment numeral and sign display,
and symbols for key acknowledgement
2nd line (middle) 10-character, 14-segment text display
3rd line (bottom) 5 markers to identify display in measuring mode
Housing
Material die-cast aluminium with polyurethane finish
Protection category IP 67 (IEC 529 / EN 60529) equivalent to NEMA 4 and 4X
Signal cable only for remote systems (F)length up to 10 m / 30 ft (max. 20 m / 60 ft, option)
4.4 Environmental conditions
In accordance with EN IEC 61010-1 the following enviromental conditions have to be observed .
The GFM 700 is designed to operate safe under the following conditions:
a) suitable for indoor and outdoor use, the housing of the signal converter is usable up to Protection Category IP67
b) IP 67 is only warranted when using suitable cabling in the cable glands
c) use up to an altitude of 2000 m above see level
d) suitable for an operation ambient temperature range - 40 …. +60 °C
e) suitable for an storage temperature range -40 …. + 80 °C
f) suitable for use in atmospheres with a relative humidity up op 80%
g) mains supply voltage fluctuations up to + 13 % of the nominal voltage range
h) withstands over voltages up to category II on the main supply voltage ( IEC 60364-4-443)
i) connected to protective earth conductor ( Protection Class I)
j) rated pollution degree 2

10
4.5 Dimensions and weights
Flange connections to DIN 2501 / pressure PN, s. Tabelle: dimensions bDIN and cDIN maximum operation
to ANSI / class 150 lb/RF: dimensions bANSI and cANSI pressure, see Sect. 4.2
Meter size to ... Dimensions in mm and (inches) Weight
DIN ANSI a bDIN b
ANSI c DIN c ANSI e
** approx.
DN mm PN inches in kg
50 40 2 500 (19.69) 198 ( 7.80) 198 ( 7.80) 165 ( 6.50) 165 ( 6.50) 370 (14.57) 15 ( 33)
65 16 2 ½ 500 (19.69) 216 ( 8.50) 212 ( 8.35) 185 ( 7.28) 178 ( 7.01) 380 (14.96) 20 ( 44)
80 40 3 500 (19.69) 230 ( 9.06) 235 ( 9.25) 200 ( 7.87) 210 ( 8.27) 390 (15.35) 20 ( 44)
100 16 4 500 (19.69) 252 ( 6.66) 257 (10.12) 220 ( 8.66) 229 ( 9.02) 410 (16.14) 20 ( 44)
125 16 5 500 (19.69) 280 (11.02) 282 (11.10) 250 ( 9.84) 254 (10.00) 430 (16.93) 30 ( 66)
150 16 6 500(19.69) 312 (12.28) 310 (12.20) 285 (11.22) 280 (11.02) 460 (18.11) 35 ( 77)
200 10 8 600 (23.62) 365 (14.37) 367 (14.45) 340 (13.39) 343 (13.50) 490 (19.29) 40 ( 88)
250 10 10 600 (23.62) 419 (16.50) 425 (16.73) 395 (15.55) 407 (16.02) 570 (22.44) 45 ( 99)
300 10 12 700 (27.56) 470 (18.50) 489 (19.25) 445 (17.52) 483 (19.02) 610 (24.02) 55 (121)
350 10 14 700 (27.56) 515 (20.28) 530 (20.87) 505 (19.88) 534 (21.02) 650 (25.59) 65 (143)
400 10 16 700 (27.56) 571 (22.48) 587 (23.11) 565 (22.24) 597 (23.50) 690 (27.17) 75 (165)
450 10 18 800 (31.50) 621 (24.45) 631 (24.84) 615 (24.21) 635 (25.00) 740 (29.13) 95 (210)
500 10 20 800 (31.50) 674 (26.54) 690 (27.17) 670 (26.38) 699 (27.52) 780 (30.71) 120 (265)
550 10 22 800 (31.50) 755 (29.72) 740 (29.13) 780 (30.71) 750 (29.53) 820 (32.28) 150 (331)
600 10 24 800 (31.50) 780 (30.71) 797 (31.38) 780 (30.71) 813 (32.01) 870 (34.25) 175 (386)
Please note for compact flowmeter: *dimension “b“ see Table plus 210 mm
** weight see Table plus approx. 3.0 kg
GFM 700 K Compact flowmeter GFS 700 S Primary head
GFC 700 F Signal converter GFC 700 F – EEx Signal converter
wall mounting (rotatable) wall mounting (rotatable)
weight approx. 4.2 kg weight approx. 4.2 kg

11
5 Installation notes
Inlet run: • downstream of a compressure or nozzle ≥40 x DN
• downstream of a fan ≥30 x DN
• downstream of fully open control valve ≥20 x DN
• downstream of a 90° bend (elbow) ≥20 x DN
• downstream of a reducer (α/2 < 4°) no additional inlet run required
Outlet run: ≥10 x DN (DN = meter size)
Installation
conditions
Select position such that the measuring beam is approximately horizontal.
Fit the mating flanges precisely at right angles to the pipeline.
6.1 Electrical connection
• Power supply, power consumption and load rating
of outputs, see “Technical data”
• Current and pulse outputs (I + P) are galvanically
isolated from all input and output circuits.
• Selection of connection diagrams Standard operation EEx operation
Current output 2) passive/active 1) active (also standard)
Pulse output 3) passive 4) passive (also standard)
Power supply and connection terminals 5) 6)
1) Current output active
Standard and EEx
Ri≤680 Ω
2) Current output passive
Standard
Uext. ≤18 V DC
Ri≤680 Ω
3) Pulse output active
Standard
UOutput = 19 V −32 V
R1 ≥650 Ω
I≤ 50 mA
EC electronic totalizer
4) Pulse output passive
Standard and EEx
Uext. ≤32 V DC ≤24 V AC
I≤ 150 mA
EC electronic totalizer
EMC electromechanical
totalizer
5) Power supply connection and all outputs
standard
LN
L~ L~
only internal protective conductor
connection terminal
6) Power supply connection and all outputs
EEx version
L N
L~ L~
power supply protective conductor
terminal
6.2 Electrical installation to the mains supply voltage
The GFM 700 is intended for permanent connection to the mains. It is required (for example for service) to mount an
external switch or circuitbreaker near the product for disconnection from the mains. It must be reached easily by the
operator and marked as the disconnecting device for this product. The switch or circuitbreaker has to be suitable for the
application and shall also be in accordance with local (safety) requirements and requirements of the building installation.
The protective conductor clamp terminal size M5, press-fitted, in the terminal compartment (Inear the power connection
terminals) shall always be connected to the protective earth conductor of the main supply. Conductors up to 4mm2can be
connected.
The diameter of the conductors of the main supply, including the protective earth conductor shall to be in accordance with
the general requirements.
binary
out
p
uts
current
out
p
ut
binary
oututs
current
out
p
ut

12
7 Operation of the signal converter
7.1 Table of settable functions
Fct. Text Description and settings
1.0 OPERATION Main menu 1.0 Operation
1.1.0 BASIC.
PARAM
Submenu 1.1.0 Basis parameters
1.1.1 FULL SCALE Full-scale range for flowrate Q100%,
see Fct. 3.1.1
1.1.2 REV. SCALE Different range for reverse flow
required? See Fct. 3.1.2
1.1.3 REV. VALUE Full-scale range for reverse flow
QR100%, see Fct. 3.1.3
1.1.4 ZERO SET. Zero setting, see Fct. 3.1.4
1.2.0 DISPLAY Submenu 1.2.0 Display
1.2.1 DISP. FLOW Unit for flowrate display,
see Fct. 3.2.1
1.2.2 DISP. TOTAL. Function of totalizer display,
see Fct. 3.2.2
1.2.3 UNIT TOTAL. Unit for totalizer display required?
See Fct. 3.2.3
1.2.4 DISP. SP. S. Display of sound velocity required?
See Fct. 3.2.4
1.2.5 CYCL. DISP. Cyclic display required?
See Fct. 3.2.5
1.3.0 CUR.
OUTP. I
Submenu 1.3.0 Current output I
1.3.1 TIMECONST.I Time constant of current output I,
see Fct. 3.3.6
1.3.2 L.F.CUTOFF I Low-flow cutoff (SMU) for current
output required? See Fct. 3.3.7
1.3.3 CUTOFF
ON
Cutoff “on” value SMU-I,
see Fct. 3.3.8
1.3.4 CUTOFF OFF Cutoff “off” value SMU-I,
see Fct. 3.3.9
1.4.0 FREQ. OUTP.F Submenu 1.4.0
Frequency output F
1.4.1 PULSRATE
or
PULSE/UNIT
Pulse rate for 100% flowrate or for
sound velocity, see Fct. 3.4.3 or
Pulse value for flowrate unit,
see Fct. 3.4.3
1.4.2 L.F.CUTOFF F Low-flow cutoff (SMU) for frequency
output required? See Fct. 3.4.3
1.4.3 CUTOFF ON Cutoff “on” value SMU-F,
see Fct. 3.4.7
1.4.4 CUTOFF OFF Cutoff “off” value SMU-F,
see Fct. 3.4.8
2.0 TEST Main menu 2.0 Test functions
2.1 TEST DISP. Carry out display test (Sect. 7.1.1)
Start with →key, duration approx. 30
Sec. Test interruption with ↵key.
2.2 TEST I Test current output I (Sect. 7.1.2)
•0 mA •4 mA •20 mA
•2 mA •10 mA •22 mA
Displayed value present directly at
current output. Actual value again
present at output after pressing the ↵
key.
2.3 TEST F Test frequency output F (Sect. 7.1.3)
• 1 Hz • 100 Hz
• 10 Hz • 1000 Hz
Displayed value present directly at
current output. Actual value again
present at output after pressing the ↵
key.
2.4 PROCESSOR Test microprocessor (Sect. 7.1.4)
Start with ↵key, duration approx. 2
Sec. End of test: NO ERROR or
ERROR displayed.

13
Fct. Text Description and settings
3.0 INSTALL Main menu 3.0 Installation
3.1.0 BASIS.PARAM. Submenu 3.1.0 Basisparameters
3.1.1 FULL SCALE Full-scale range for flowrate Q100%
Unit: select from list
under Fct. 3.2.1
Value: 9.5*10-7 - 150.8 m3/Sec or
3.9 - 1,987,200 US Gal/min
After selecting unit, call numerical
value with ↵key, 1st digit flashes.
3.1.2 REV. SCALE Different range for reverse flow
required? Setting NO or YES
3.1.3 REV. VALUE Full-scale range for reverse flow
(appears only if YES set
under Fct. 3.2.1)
Unit: select from list
under Fct. 3.2.1
Value: 9.5*10-7 - 150.8 m3/Sec or
3.9 - 1,987,200 US Gal/min
Value must not be larger
than that of Fct. 3.1.1!
After selecting unit, call numerical
value with ↵key, 1st digit flashes.
3.1.4 ZERO SET Zero setting
• FIXED.VALUE
• VALUE.MEASU.
(Carry out only at “zero” flow and
with completely filled measuring
tube).
1) Inquiry: CALIB. NO or YES
2) if YES: calibration (duration
approx.20 Sec) with zero display
in PERCENT of Q100%
3) Inquiry: STORE NO or YES.
3.1.5 METER SIZE Meter size
Unit: mm or inches
Value: 25 - 1200 mm or
0.98 - 48 inches
After selecting unit, call numerical
value with ↵key, 1st digit flashes.
3.1.6 GK VALUE Primary head constant GK
(see also primary head nameplate).
Range: 0.5 - 14
3.1.7 FLOW DIR Define direction of forward flow,
see Sect. 5.4.
Setting: +or
− , acc. to direction of
arrow
on primary head.
3.1.8 MIN SP. S. Minimum sound velocity
Minimum value used for I0% or F0%
(when function SOUND.VELO.
selected in 3.3.1 or 3.4.1)
Value: 0 to 5000 m/s
3.1.9 MAX SP. S Maximum sound velocity
Maximum value used for I100%
or F100%
(when function SOUND.VELO.
selected in 3.3.1 or 3.4.1)
Value: 1 - 5000 m/s

14
Fct. Text Description and settings
3.2.0 DISPLAY Submenu 3.2.0 Display
3.2.1 DISP. FLOW Unit for flowrate
• m3/Sec • Liter/Sec
• US Gal/Sec
• m3/min • Liter/min
• US Gal/min
• m3/hr • Liter/hr • US Gal/hr
• h Liter/hr or US.MGal/DAY
(factory set, can be changed
as required, see Fct. 3.6.6,
3.6.7+3.6.8 and Sect. 5.14)
• PERCENT
• NO DISPLAY
3.2.2 DISP. TOTAL Function of totalizer display
• + TOTAL. (forward totalizer)
• − - TOTAL. (reverse totalizer)
• +/−TOTAL. (forward and reverse
totalizers, alternating)
• SUM TOTAL.
(sum of + and −- totalizers)
• ALL TOTAL. (alternating,
sum, + and −-totalizers)
• TOTAL. OFF
(totalizer switched off)
3.2.3 UNIT TOTAL. Unit for totalizer display
• m3• Liter • US Gal
• h Liter or US.Mgal
(see Fct. 3.2.1 “hLiter/hr” and
“US.Mgal/DAY”)
3.2.4 DISP. SP. S Display of sound velocity (in m/s)
required?
Setting: NO or YES
3.2.5 CYCL. DISP. Cyclic display required?
Setting: NO or YES
3.2.6 ERROR
MSG.
Which error messages to be
displayed?
• NO MESSAGES
(no error messages)
• US ERROR
(only ultrasonic errors)
• TOTAL.ERROR
(only errors of internal totalizer)
• ALL ERRORS (all errors)

15
Fct. Text Description and settings
3.3.0 CUR.OUTP. I Submenu 3.3.0 Current output I
3.3.1 FUNCTION I Function, current output I
• OFF (switched off)
• F/R IND.
(F/R indication, e.g. for F)
• 1 DIR. (1 flow direction)
• I<I 0 PCT
(Forward / Reverse flow,
e.g. in 0 - 20 mA range:
F=10 - 20 mA and R=10 - 0 mA)
• 2 DIR. (Forward/Reverse flow,
F/R-measurement)
• SP. SOUND (sound velocity)
3.3.2 RANGE I Range for current output I, see
Sect. 5.7.2
• 0 - 20 mA
• 4 - 20 mA
• OTHER RANGE
(see Fct. 3.3.3, 3.3.4 + 3.3.5)
3.3.3 I 0 PCT. Current for 0% flow (I0%)
(appears only if OTHER RANGE
set under Fct. 3.3.2).
Value: 00 to 16 mA
3.3.4 I 100 PCT. Current for 100% flow (I100%)
of full-scale range (Fct. 3.1.1)
(appears only if OTHER RANGE
set under Fct. 3.3.2).
Value: 04 - 20 mA
(value must be at least 4 mA
greater than that of Fct. 3.3.4).
3.3.5 I MAX mA Current limitation (Imax)
see Fct. 5.7.2
(appears only if OTHER RANGE is
set under Fct. 3.3.2)
Value: 04 20 mA
(value must be at least 4 mA
greater than that of Fct. 3.3.4).
3.3.6 TIMECONST.
I
Time constant of current output I
Value: 0.04 - 3600 Sec
3.3.7 L.F.CUTOFF
I
Low flow cutoff (SMU) for current
output required?
Setting: NO or YES
3.3.8 L.F.CUTOFF
ON
Cutoff “on” value for SMU-I
(appears only if YES set
under Fct. 3.3.7)
Value: 01 - 19 PERCENT of Q100%
(Fct. 3.1.1)
3.3.9 L.F.CUTOFF
OFF
Cutoff “off” value for SMU-I
(appears only if YES set
under Fct. 3.3.7)
Value: 02 - 20 PERCENT of Q100%
(Fct. 3.1.1), value must be greater
than that of Fct. 3.3.8.

16
Fct. Text Description and settings
3.4.0 FREQ.
OUTP.F
Submenu 3.4.0 Frequency output
F
3.4.1 FUNCTION F Function, frequency output F
• OFF (switched off)
• F/R IND.
(F/R indication, e.g. for I)
• 1 DIR. (1 flow direction)
• 2 DIR. (forward / reverse flow,
F/R measurement)
• SP. SOUND (sound velocity)
3.4.2 PULSOUTP Unit of frequency output F
• PULSRATE
(setting in pulses per unit time)
• PULSE/UNIT (setting in pulses
per unit volume)
3.4.3 PULSRATE Pulse rate for 100% flowrate or for
sound velocity, see Fct. 3.1.1 or
3.1.8 + 3.1.9 (appears only if
PULSRATE set under Fct. 3.4.2)
Value:
2.778*10-3 - 1000 PuLSe/Sec (= Hz)
or 0.1667 - 60,000 PuLSe/min
or 10 - 3,600,000 PuLSe/hr
After selecting unit, call numerical
value with ↵key, 1 digit flashes.
3.4.3 PULSE/UNIT Pulse value for flowrate unit
(appears only if PULSE/UNIT set
under Fct. 3.4.2)
Unit: PuLSe per m3, Liter, US Gal or
unit of Fct. 3.6.6, 3.6.7+3.6.8
Value:
0.0001 to 9.9999*109PuLSe
(no check, but Q100%*pulse value
≤3.600.000 pulses/hr).
After selecting unit, call numerical
value with ↵key, 1 digit flashes.
3.4.4 PULSWIDTH Pulse width for frequenc ≤10 Hz
• 30 mSec • 200 mSec
•50 mSec • 500 mSec
• 100 mSec
3.4.5 TIMECONST.
F
Time constant
of frequency output F
• 40 mSec
• SAME AS I
(time constant for F same as for I,
see Fct. 3.3.6)
3.4.6 L.F.CUTOFF
F
Low-flow cutoff (SMU) for frequency
output required?
Setting: NO or YES
3.4.7 CUTOFF ON Cutoff “on” value SMU-F
(appears only if YES set
under Fct. 3.4.6)
Value: 01 - 19 PERCENT of Q100%
(Fct. 3.1.1)
3.4.8 CUTOFF
OFF
Cuttoff “off” value SMU-F
(appears only if YES set
under Fct. 3.4.6)
Value: 02 - 20 PERCENT of Q100%
(Fct. 3.1.1),, value must be greater
than of Fct. 3.3.8

17
Fct. Text Description and settings
3.5.0 USER DATA Submenu 3.5.0 User data
3.5.1 LANGUAGE Language for display texts, see
Sect. 5.11
• GB/USA (English)
• D(german)
• F (French)
• N(Dutch)
3.5.2 ENTRY.CODE.
1
Entry code 1 for setting level
required?
See Sect. 5.12
• NO = Entry with key only
• YES = Entry with key and
9-keystroke code
Setting of the code under Fct. 3.5.3
3.5.3 CODE 1 Set Code 1, see Sect. 5.12
(appears only if YES set under Fct.
3.6.2)
• Factory setting:
→, →, →, ↵, ↵. ↵, ↑, ↑, ↑
• Different code required:
Press any 9-keystroke combination
and then press the same
combination again.
Each keystroke acknowledged by
“*”.
WRONG CODE appears if 1st and
2nd entries are not equal.
Press ↵+ →keys
and repeat entries.
3.5.4 LOCATION Tag name setting
(measurement point no.)
max. 10 digits. Required only
for flowmeters of “HHC” design
(operator control via Hand-Held
Communicator MIC 500, connected
to current output).
Factory setting: ALTOMETER
Characters assignable to each
place: A..Z / a..z / 0..9 / + / -./
underscore character =
blank character.
3.5.5 OUTP. HOLD Hold values of outputs
during settings?
Setting: NO or YES
3.5.6 UNIT TEXT Text for user-defined unit
Factory setting:
hLiter/hr or US.MGal/DAY
Characters assignable
to each place:
A..Z / a..z / 0..9 / + / −-./
underscore
character = blank character.
Fraction bar ”/” in 7th place is
unalternable.
3.5.7 FACT. QUANT Conversion factor for quantity FM
FM= quantity per 1 m3!
Factory setting:
1.00000 E1 (for hecto Liter)
or 2.64172 E-4 (for US M.gallons)
Value setting:
0.00001*10
−
9- 9.99999*10+9
3.5.8 FACT. TIME Conversion factor for time FT
FTin seconds!
Factory setting:
3.60000 E3 (for hour) or
8.64000 E4 (for day)
Value setting:
0.00001*10
−
9- 9.99999*10+9

18
Fct. Text Description and settings
3.5.9 TOTAL.
RESET
Totalizer reset (+ and −- totalizer
together)
Inquiry: NO or YES
3.5.10 ENABL.
RESET
Enable totalizer reset
for RESET/QUIT menu.
Inquiry: NO or YES
3.5.11 PLAUSIB
ERR.
Error limit in % of measured value for
plausibility statement. Measured
values that are outside the specified
band are not processed. Every
measured value outside the specified
band will increase an internal counter
by “1”, until a maximum counter
value (see Fct. 3.6.13) has been
reached. The corresponding
measurement channel will then be
made inactive and an indication will
be visible on the display.
Value setting: 1 - 99 PERCENT
Factory setting: 20 PERCENT
3.5.12 WEIGHT
P.OK
Weight factor for correct
measurements. The internal
plausibility counter is increased by
the number programmed, when the
measured value is correct. The
higher the number the faster an
inactive channel will become active
again.
Value setting: 1 - 50
Factory setting: 4
3.5.13 N.ER.PLAU
SIB.
Limit value for the counter of
incorrectly measurements (see Fct.
3.6.11). When ‘0’ is set, the
plausibility function will become
inactive.
Value setting: 0 - 10,000
Factory setting: 0

19
7.2 Error messages
Fct. Text Description and settings
4.0 PARAM.
ERROR
Main menu 4.0 Parameter error
4.1.0 FLOW
VELOC.
FLOW VELOCITY “v” incorrect:
Ensure condition
0.5 m/s ≤v ≤60 m/s
or 1.5 ft/s ≤v ≤180 ft/s is met!
4.1.1 FULL SCALE Full-scale range for flowrate Q100%,
see Fct. 3.1.1
4.1.2 METER SIZE Meter size, see Fct. 3.1.5
4.2.0 F/R FLOW FULL-SCALE RANGE(S) for
forward/reverse flow incorrect:
Ensure condition F ≥R is met!
4.2.1 FULL SCALE Full-scale range for forward
flowrate QF100%, see Fct. 3.1.1
4.2.2 REV. SCALE Different range for reverse flow
required? See Fct. 3.1.2
4.2.3 REV. VALUE Full-scale range for reverse flow
QR100%, see Fct. 3.1.3
4.3.0 I RANGE CURRENT OUTPUT I RANGE
incorrect:
Ensure condition
I100%−I0% ≥4 mA is met!
4.3.1 I 0 PCT Current for 0% flow (I0%), see Fct.
3.3.3
4.3.2 I 100 PCT Current for 100% flow (I100%), see
Fct. 3.3.4
4.4.0 I MAXIMUM CURRENT LIMITATION
incorrect:
Ensure condition
Imax ≥I100% is met!
4.4.1 I 100 PCT Current for 100% flow (I100%), see
Fct. 3.3.4
4.4.2 I MAX mA Setting of max. output current
(Imax),
see Fct. 3.3.5
4.5.0 LFC. I RANG. LOW-FLOW CUTOFF RANGE I
incorrect:
Ensure condition
cutoff “off”.
Cutoff “on” ≥1% is met!
4.5.1 L.F. CUTOFF
I
Low-flow cutoff (SMU) for current
output required? See Fct. 3.3.7
4.5.2 CUTOFF ON Cutoff “on” value SMU-I, see Fct.
3.3.8
4.5.3 CUTOFF
OFF
Cutoff “off” value SMU-I, see Fct.
3.3.9
4.6.0 LFC. F
RANG.
LOW-FLOW CUTOFF RANGE F
incorrect:
Ensure condition cutoff “off”.
Cutoff “on” ≥1% is met!
4.6.1 L.F. CUTOFF
F
Low-flow cutoff (SMU) for
frequency output required?
See Fct. 3.4.6
4.6.2 CUTOFF ON Cutoff “on” value SMU-F,
see Fct. 3.4.7
4.6.3 CUTOFF
OFF
Cutoff “off” value SMU-F,
see Fct. 3.4.8

20
Fct. Text Description and settings
4.7.0 F > 1 kHz OUTPUT FREQUENCY too high:
must be less than 1 kHz!
4.7.1 FULL SCALE Full-scale range for flowrate Q100%,
see Fct. 3.1.1
4.7.2 PULSOUTP. Unit of frequency output F,
see Fct. 3.4.2
4.7.3 PULSRATE
or
PULSE/UNIT
Pulse rate for 100% flowrate or
for sound velocity,
see Fct. 3.4.3 or
Pulse value for flowrate unit,
see Fct. 3.4.3
4.8.0 F <> PULSW. FREQUENCY/PULSE WIDTH
ASSIGNMENT is incorrect
4.8.1 PULSOUTP. Unit of frequency output F,
see Fct. 3.4.2
4.8.2 PULSRATE
or
PULSE/UNIT
Pulse rate for 100% flowrate or
for sound velocity, see Fct 3.4.3
or Pulse value for flowrate unit,
see Fct. 3.4.3
4.8.3 PULSWIDTH Pulse width for frequencies
≤10 Hz, see Fct. 3.4.4
4.9.0 PULS/T.TIME Incorrect ASSIGNMENT of UNIT
for F and SOUND VELOCITY
4.9.1 FUNCTION F Function of frequency output F,
see Fct. 3.4.1
4.9.2 PULSOUTP. Unit of frequency output F,
see Fct. 3.4.2
4.10.0 LFC.
I/T.TIME
LOW-FLOW CUTOFF I incorrect:
Ensure low-flow cutoff is “off”
when function of current output
is sound velocity.
4.10.1 FUNCTION I Function of current output I,
see Fct. 3.3.1
4.10.2 L.F.CUTOFF
I
Low-flow cutoff (SMU) for current
output required? See Fct. 3.3.7
4.11.0 LFC.
F/T.TIME
LOW-FLOW CUTOFF F incorrect:
Ensure low-flow cutoff is “off”
when function of frequency
output is sound velocity.
4.11.1 FUNCTION F Function of frequency output F,
see Fct. 3.4.1
4.11.2 L.F.CUTOFF
F
Low-flow cutoff (SMU) for
frequency output required?
See Fct. 3.4.6
4.12.0 V.S.
min>max
MAX. SOUND VELOCITY MUST
BE LARGER THAN MIN. SOUND
VELOCITY.
4.12.1 MIN SP. S Minimum sound velocity,
sound velocity for I0% or F0%
4.12.2 MAX SP. S Maximum sound velocity,
sound velocity for I100% or F100%