Kobold ZOE User manual

Operating Manual
for
Flow-Totalizer
Model: ZOE

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Page 2 ZOE K10/0523
1. Table of Contents
1.Table of Contents ......................................................................................... 2
2.Note .............................................................................................................. 3
3.Instrument Inspection ................................................................................... 3
4.Regulation Use ............................................................................................. 4
5.Environment ................................................................................................. 4
6.Instrument / Functions overview ................................................................... 5
7.Electrical connections ................................................................................... 5
7.1Cable entry for housing option -K ........................................................ 5
7.2Overview of Terminals ZOE-ZX with Supply option B and 3 ............... 6
7.3Power Supply ...................................................................................... 7
7.4Sensor Inputs ...................................................................................... 8
7.5Control Input ...................................................................................... 14
7.6Pulse Output ..................................................................................... 16
8.Operating and Menu Structure ................................................................... 17
8.1Overall ............................................................................................... 17
8.2Measuring Mode ................................................................................ 17
8.3Menu Mode ....................................................................................... 18
9.Instrument Parameters ............................................................................... 20
9.1End of instrument parameterization ................................................... 20
9.2Overview of menu functions/ instrument parameters ........................ 21
9.3Signal ................................................................................................ 23
9.4Scaling .............................................................................................. 24
9.5Rate ................................................................................................... 26
9.6Counter ............................................................................................. 27
9.7Pulse output (only with ZOE-ZE Supply option 3) ............................. 29
9.8User service ...................................................................................... 30
9.9Factory service .................................................................................. 30
9.10Information ........................................................................................ 31
10.Technical Information ................................................................................. 31
11.Order Codes ............................................................................................... 31
12.Dimensions ................................................................................................. 31
13.Disposal ...................................................................................................... 32
14.EU Declaration of Conformance ................................................................. 33
15.UK Declaration of Conformity ..................................................................... 34
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

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2. Note
Please read these operating instructions before unpacking and putting the unit into
operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you have
purchased. If you need an instruction manual that corresponds to the purchased product
version, you can request it from us free of charge by email (in[email protected]) in PDF
format, specifying the relevant invoice number and serial number. If you wish, the
operating instructions can also be sent to you by post in paper form against an applicable
postage fee.
Operating instructions, data sheet, approvals and further information via the QR code
on the device or via www.kobold.com
The devices are only to be used, maintained and serviced by persons familiar with these
operating instructions and in accordance with local regulations applying to Health &
Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the machines
fulfil the EC-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of the
delivery packaging. In case of damage, please inform your parcel service / delivery
agent immediately, since they are responsible for damages during transit.
Scope of delivery:
The standard delivery includes:
 Flow counter/- unit/-- in plastic- universal housing with wall or pipe mounting set
Model: ZOE-ZX with universal housing ‘K’
OR
Oval gear flow meter DON- with electronics option –ZE/ZB in compact version
Model: ZOE-ZX with universal housing ‘M’
 Battery 3.6 V Lithium size AA for battery mode

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4. Regulation Use
The electronic units ZOE-ZX are specifically designed for the calculation, display and
transfer of calculations and flow rates of flow meters with pulse or frequency outputs.
The instruments display flow rate, day counter (resettable) and total counter in the
operator-selected units. A menu guides you through the programming of the device that
largely eliminates the requirement of constant usage of operating manual. All user-
specific program settings are retained even when changing the battery.
A trouble-free operation of the device is only guaranteed if all instructions in this manual
are complied. We do not accept any liability for damage caused by failure to follow these
instructions.
5. Environment
The electronic options ZOE-ZX are weather resistant and adequately reflect IP66/67
(NEMA 4X). The electronics are housed in a UV-resistant, glass-filled nylon housing
with stainless steel screws and FPM seals.
The instruments are suitable for harsh indoor or outdoor environments and comply with
EU Directive 2014/30/EU (Electromagnetic Compatibility).

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6. Instrument / Functions overview
7. Electrical connections
7.1 Cable entry for housing option -K
Up to 3 cable entries (M20x1.5 or ½ "NPT) are available for electric connection in case
of electronics with plastic housing. To use these cable inlets, the existing factory
protection caps must be broken with a tool (e.g. screwdriver) and a suitable cable gland
should be screwed in. The cable glands are not included in the delivery.
Eruption of cable inlets
Function ZOE-ZExxF3 ZOE-ZBxxFB
Dual counting
function x x
Supply voltage
DC-supply x -
Battery operation x x
Sensor supply (only
with external supply) 8 V -
Electrical outputs (only with external
supply)
Pulse output x -
LCD Display
Selectable units x X
Decimal point x X
Accumulated totalizer x X
Resettable totalizer x X
Linearization x X
Rate display x X
Backlight x -

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7.2 Overview of Terminals ZOE-ZX with Supply option B and 3
Supply option B
(Battery supply - either 1 x 3.6 V or 2 x 1.5 V)
Supply option 3
(external DC supply or depending on the used sensor with battery)

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7.3 Power Supply
Depending on functionality and features, the electronics offer different possibilities for
power supply:
 Options ZOE-ZExxx3xx: Battery and ext. DC-Supply
 Options ZOE-ZBxxxBxx Battery operation
7.3.1 Storing the counter readings
The storage of meter readings is carried out after each measurement cycle in the internal
FRAM. If the power is interrupted and re-applied, than the meter reading revert to the
last saved values.
7.3.2 External DC-Supply
When electronic units are supplied with external DC voltage, all functions are available
i.e. Pulse output, display backlight and sensor supply can be used as needed.
If the device is taken out of operation and not used for longer periods,
the battery must be removed. Otherwise, the device is always supplied
by the battery and remains active. As a result, the battery can get
discharged.
7.3.3 Battery operation (ZOE-ZB with supply option B)
The option ZOE-ZX can also be powered by a battery. In battery mode, the device
function scope is relatively limited:
 Pulse output is not available.
 The backlight of the display is switched off and cannot be turned on.
 Only passive sensors may be used like reed switches, as they require no
additional power supply. Usage of induction coils reduces the battery life. Other
sensors, which require a sensor power for operation, are also not suitable for
battery operation.
The supplied battery type 3.6 V AA Lithium (2200 mAh) should be inserted in the battery
holder on the back side of the electronic (correct polarity is important!).
The following battery type is recommended as a replacement for the supplied battery:
a) 3.6 V lithium, size AA, capacity at least 2200 mAh, IEC type CR14505
For example: EVE type ER14505M, SAFT LS14500, Emmerich ER 14505, VARTA
CR 14505
b) 2 x alkali, size AA, IEC type LR6
Battery life duration: The achievable battery life is dependent on various factors:
 On the total number of detected input pulses and the input frequency(higher
frequencies reduce the battery life)
 On the environmental conditions - low temperatures reduce the usable battery
capacity.

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7.4 Sensor Inputs
7.4.1 Active pulse signal
Power Supply: External DC-Supply
Signal input setting: „ACTIVE SIGNAL“
Wiring for ZOE-ZE with Supply option 3:
When connecting active pulse signals, the device can also be supplied with battery.
Wiring for ZOE-Z with Supply option B:

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7.4.2 Hall Sensor, NPN- and PNP-Sensors
Power supply: only external DC-supply
Signal input setting: „HALL“
Signal input setting: „NPN“
Signal input setting: „PNP“
Wiring for ZOE-ZE:

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7.4.3 Reed switch
Power supply: External DC supply, battery operation or
Signal input setting: „REED “
Wiring for ZOE-ZE with Supply option 3:
Wiring for ZOE-Z with Supply option B:
When using a reed contact as a sensor, version ZOE-ZE can also be supplied with
battery (no electrical output).

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7.4.4 Self exciting Coil
Power supply: External DC-supply and battery operation
(Battery operation reduces battery life)
Signal input setting: „COIL“
Wiring for ZOE-ZE with Supply option 3:
The connection of the DOT (turbine wheel flowmeter) is identical to the connection of
the induction coil.
When using an induction coil as a sensor, the device can alternatively be supplied with
battery (no electrical output).

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7.4.5 Namur-Sensor
Power supply: only external DC-supply
Signal input setting: „NAMUR“
Wiring for ZOE-ZE with Supply option 3:

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7.4.6 Transducer model UMF2
Power supply: only external DC-supply
Signal input setting: „NPN“
Wiring for ZOE-ZE with Supply option 3:

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7.4.7 PMG (magnetic inductive with frequency output)
Supply Voltage: only external DC power supply
Signal input setting: PNP
Wiring for ZOE-ZE with Supply option 3:
7.5 Control Input
There is one control input available for external controlling of instrument functions. The
activation of its function can be done through:
a.) an active control input or
b.) Carried out by a passive N/O contact.
In both cases, the function will be activated on switching from HIGH to LOW level (falling
edge).
When using an active control signal, the signal amplitude of the HIGH level must be from
5 to 30Vdc. When using simple normally open contact, the input potential is internally
pulled of HIGH, if the contact is open. If the contact is closed, the input potential is pulled
to GND and the control function is activated.
Function of control input:
Control input ZOE-ZX
CTRL1 Reset partial volume counte
r

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Wiring for ZOE-ZE with Supply option 3:

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7.6 Pulse Output
Pulse output is set to push-pull output type and provides an active digital signal with
HIGH amplitude of about + Vs.
Wiring for ZOE-ZE with Supply option 3:

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8. Operating and Menu Structure
8.1 Overall
Functions of operating buttons
Button Symbol Function
Measuring mode Menu mode
Menu / Return
Enter Menu mode
To be pressed
for 3-5 sec
During the parameter setting,
back to main menu / return to
the measurement mode/jump
to the previous decimal
position while setting
numerical values
Down n.A. Menu item selection /
incrementing and
decrementing digits while
setting numerical values on
the display
Top n.A.
Enter n.A.
Numerical input: Jump to the
next decimal position
General: Saves the
parameter value and returns
to the parent menu
8.2 Measuring Mode
After applying the supply voltage, the electronics starts in measurement mode. In this
mode, the input signals are recorded continuously; current instantaneous flow and
volume counter readings are periodically calculated and displayed.
On LCD, in addition to main display, the status and configuration of the pulse output and
supply voltage are also displayed.
8.2.1 Display range of the Volume Counter
The number of digits that appear on the display for volume counter (partial and total
volume counter) is limited to maximum 8 digits. If 8-digit display range is exceeded, the
display will signal/represent it by displaying 8 hyphen signs (--------). In this case, the
counter cannot be read. The user has then the possibility of changing the Unit of the
volume counter in the Volume Menu so that the counter values can be brought back
again within the display range.

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8.2.2 Display layout in measuring mode (ZOE-ZX)
8.3 Menu Mode
8.3.1 General
In the menu, all device parameters can be set. The individual parameters are organized
into groups according to their function. While the menu mode is turned on, the input
signal detection and pulse output are still active in the background. After leaving the
menu mode, all display parameters are then updated again in measurement mode.
Note: The menu mode is not exited automatically even after a certain time without key
operation. The menu mode remains active (in battery mode) until the user has once
pressed the button.
In battery mode, a long stay in menu mode shortens battery life.

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8.3.2 Parameter setting
Measuring mode Menu mode-Main group
3
Menu mode Parameter selection mode-Sub group
To activate the Menu mode, the button must be pressed for 3-5 sec. The
parameters are divided into main groups and subgroups. For selection of main groups,
and buttons are used. In the main menu, all menu groups can not be
displayed simultaneously on the screen so the list of menu items can then be scrolled
up or down. To choose the selected item, button should be pressed and the device
goes into relevant sub-menu i.e. into the parameter setting level. For selection of
predefined parameter values, and buttons are used. After changing the
value of the parameter, button should be pressed to save it and to return to the
previous menu level. The return to the main menu or exit to the menu mode takes place
by repeatedly pressing .

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8.3.3 Numerical value input
While setting parameters with numerical value, the value to be set is always displayed
above the parameter. The maximum size and the number of decimal places are fixed
and cannot be changed. While setting the numerical value of a parameter, the left outer
position starts blinking first indicating the position of the cursor. These positions can be
assigned with numbers from 0 to 9 with the help of buttons. By pressing
button, the input cursor moves to right and the next digit can be changed. In case of a
false entry at the previous position, the cursor can be moved again to left by pressing
key and the correction can be made. If the cursor is on the far right, the set value
is saved by pressing the button and the display changes to the parent menu.
9. Instrument Parameters
9.1 End of instrument parameterization
All ZOE-ZX electronics options are preconfigured at the factory when ordered with Oval
Gear meter. A change in the parameters of the menu groups "Signal Input" and "Rate
measurement" should not be made.
With subsequent changes of volume or flow rate units, dependent parameters will be
converted and adapted accordingly.
In a basic scaling, all parameters of the menu groups "Scaling" and "Rate" must be
edited successively. It is recommended to first set the flow and scale units before setting
any other parameters. If the basic units are changed later, all relevant scaling and
measuring range parameters are converted automatically, but there may be automatic
value corrections. It is therefore recommended to check all scaling and measuring range
parameters again after each unit change.
An accidental change of configuration can be restored through “Factory defaults’’
function in User Service  Reset.