Kobold ZOK-ZxP User manual
Operating Manual
for
Flow-Counter/-Dosing Unit/-Controller
Model:
ZOK-ZxP ZOK-ExK/ZxK
ZOK-ExM/ZxM
ZOK-ZxF
ZOK-E/-Z
Page 2 ZOK K14/0917
1. Table of Contents
1.Table of Contents ......................................................................................... 2
2.Note.............................................................................................................. 3
2.1Notice According to the Battery Law ................................................... 3
3.Instrument Inspection ................................................................................... 4
4.Regulation Use ............................................................................................. 4
5.Environment ................................................................................................. 4
6.Instrument / Functions overview ................................................................... 5
7.Electrical connections................................................................................... 6
7.1Cable entry for housing option -K........................................................ 6
7.2Overview of Terminals ZOK-E/Z with Supply option 3 and 6............... 7
7.3Overview of Connections ZOK-Z with Supply option 0 and 6.............. 7
7.4Power Supply ...................................................................................... 8
7.5Sensor Inputs .................................................................................... 12
7.6Control Inputs.................................................................................... 21
7.7Analogue Output (only ZOK-Z3 with Supply option ‘3/6/0’) ............... 23
7.8Switching output (only ZOK-Z2/-Z3) .................................................. 26
7.9Pulse Output and Status Output........................................................ 27
8.Operating and Menu Structure ................................................................... 28
8.1Overall............................................................................................... 28
8.2Measuring Mode................................................................................ 29
8.3Menu Mode ....................................................................................... 33
9.General Functions ...................................................................................... 34
9.1MIN- MAX. Memory (not for ZOK-Z2)................................................ 34
10.Instrument Parameters ............................................................................... 34
10.1End of instrument parameterization................................................... 34
10.2Overview of menu functions/ instrument parameters ........................ 35
10.3Signal input ....................................................................................... 39
10.4Rate Measurement............................................................................ 43
10.5Counter ............................................................................................. 44
10.6Pulse output (only Option ZOK–E3/-Z3)............................................ 44
10.7Switching outputs (only for options ZOK-Z2/-Z3) .............................. 47
10.8Dosing function (only ZOK-Z2).......................................................... 50
10.9Analogue output (only option ZOK-E3/-Z3) ....................................... 52
10.10Service .............................................................................................. 53
11.Technical Details ........................................................................................ 55
12.Ordering Details.......................................................................................... 58
13.Dimensions................................................................................................. 59
14.EU Declaration of Conformance ................................................................. 60
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: +49(0)6192-2990
Fax: +49(0)6192-23398
Internet: www.kobold.com
ZOK-E/-Z
ZOK K14/0917 Page 3
2. Note
Please read these operating instructions before unpacking and putting the unit into
operation. Follow the instructions precisely as described herein.
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.
2.1 Notice According to the Battery Law
Old batteries do not belong in household waste. You can send the batteries back to us
or an authorized address, free of charge. As consumer, you are legally obliged to
return the used batteries.
Contaminated batteries are provided with a mark consisting of a crossed-out trash and
the chemical symbol (Cd, Hg, Li or Pb) of heavy metal for classification as respective
contaminant:
Cd1Hg2Pb3Li4
1. "Cd" stands for cadmium.
2. "Hg" stands for mercury.
3. "Pb" stands for lead.
4. "Li" stands for lithium.
ZOK-E/-Z
Page 4 ZOK K14/0917
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/-dosing unit/-controller in plastic- universal housing with wall or pipe
mounting set Model: ZOK-Z with universal housing ‘K’
OR
Flow counter/-dosing unit/-controller in panel mounting housing 96x96mm with 2
mounting clips Model: ZOK-Z with panel mount housing ‘P’
Flow counter/-dosing unit/-controller in aluminum field housing, plastic cover PA6
with M16x1.5 cable gland
Model: ZOK-Z with field case 'F'
OR
Oval gear flow meter DON- with electronics option -Z in compact version
Model: ZOK-Z with universal housing ‘M’
Operating Manual
Battery 3.6 V Lithium size AA for data saving function (not for ZOK-Z with ‘P’)
4. Regulation Use
The electronic units ZOK-xx 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 clear multilingual 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 electronics options ZOK-ZxK 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 options ZOK-ZxP are in a panel mount
housing 96x96 mm with protection class IP44. The option ZOK-ZxF is available in
powder coated aluminum extruded housing with Plastic lids and appropriate protection
class IP 66/67.
The instruments are suitable for harsh indoor or outdoor environments and comply
with EU Directive 2014/30/EU (Electromagnetic Compatibility).
ZOK-E/-Z
ZOK K14/0917 Page 5
6. Instrument / Functions overview
Function Z1P/Z1F Z1
K
Z2P/Z2F Z2
K
Z3P/Z3F Z3
K
E1K E3K
Dual Counter x x
xxxx
Dosing function xx
Controller function xxx
Certification
ATEX Certification
xx
Power supply
DC-Supply
x x x x x x xx
AC-Supply
xxx
Battery
operation x
x x x
Sensor supply (only with external power supply)
Sensor supply 8 V/
24 V 8 V 8 V/
24 V 8 V 8 V/
24 V 8 V 8 V 8 V
Electrical outputs (only with external supply)
Relay outputs xxx
Status outputs xxxxxx
Analogue
outputs
3 L 2 L/
3 L 2 L/
3 L
Pulse outputs xx
LCD display
Selectable units x x x xxxxx
Decimal point xxxxxxxx
Accumulative total xx x xxxxx
Resettable total x x x x x x x x
Linearisation x x x x x x
Rate display x x x x x x x x
Backlighting x x x x x x x x
Arithmetic functions x x x x x x
ZOK-E/-Z
Page 6 ZOK K14/0917
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
In case of electronic option ZOK-Z with housing ‘P’, the electrical connection is at the
rear side above the pluggable screw terminals.
ZOK-E/-Z
ZOK K14/0917 Page 7
7.2 Overview of Terminals ZOK-E/Z with Supply option 3 and 6
7.3 Overview of Connections ZOK-Z with Supply option 0 and 6
ZOK-E/-Z
Page 8 ZOK K14/0917
7.4 Power Supply
Depending on functionality and features, the electronics offer different possibilities for
power supply:
Options ZOK-Z2: External DC-Supply
Options ZOK-Z1: Battery and ext. DC-Supply
Options ZOK-Z3: Battery and ext. DC-Supply and 4-20 mA
Loop current
7.4.1 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.
7.4.2 External DC-Supply
When electronic units are supplied with external DC voltage, all functions are
available. If no analogue output is used, all instrument functions are ensured on 5 VDC.
When using the analogue output in 3-wire circuit, the supply voltage must be minimum
10 VDC (+ load).
7.4.3 Supply via 4-20 mA Current Loop (only ZOK-Z3 with supply option ‘3’)
The electronic option ZOK-Z3 can alternatively be operated via 4-20 mA current loop
in 2-wire operation. Here we have the following technical limitations:
All other electrical outputs (switching outputs, pulse output and status output) are
disabled
The backlight of the display is switched off and cannot be turned on.
Sensors that do not require an additional power supply can be connected (e.g.
reed switch). Hall sensors require the additional power supply and can therefore
not be used in 2-wire loop operation. In this case, the 3-wire connection must be
used with an external power supply.
To use the 2-wire loop operation, the parameter ‘Wiring type’ in configuration
menu for analogue output must be changed to ‘2-wire’, otherwise the current
output will not be scaled correctly.
For electronics option Z2, no battery can be used due to the relay
board.
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.
ZOK-E/-Z
ZOK K14/0917 Page 9
7.4.4 Battery operation (only ZOK-Z1/-Z3 with supply option 3)
The options ZOK-Z1/-Z3/-E1/-E3 can also be powered by a battery. In battery mode,
the device function scope is relatively limited:
All electrical outputs (switching outputs, analogue output, pulse output, status
output) are disabled during battery operation.
The backlight of the display is switched off and cannot be turned on.
The sensor may only be used with passive 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.
During battery operation, there are four different types of sleep modes available under
menu point ‘Display’ which can be selected by the user and are numbered from 0-3.
Activation of sleep mode
The duration after which the electronics goes in SLEEP-Mode and SLEEP is
displayed on the display can be adjusted, activated and deactivated with Menu
point ‘Sleep Timeout’. If ‘Sleep Timeout’ is set to ‘0’, SLEEP-Mode is deactivated
and the electronics will always work in Measuring Mode. The ‘Sleep Timeout’ can
be adjusted from 0 to 1800 secs. After the ‘Timeout’ time has passed, the sleep
mode chosen by the user will be activated.
No linearization function is available during sleep modes.
The counter values will be regularly updated in the internal processor.
The flow rate will neither be updated in the processor, nor on the display.
Monitoring of battery voltage during sleep mode
In all sleep modes, after a count of 100 pulses, the battery voltage is monitored. If
this monitoring shows that the voltage has gone below 3.2 V, then the counter
values will be saved.
NOTE: The counter values will be regularly saved in measuring mode and
also in sleep mode if the battery voltage is at a critical level but however it
will not happen during sleep mode with healthy battery.
Battery status indication during sleep mode
With the exception of sleep mode 0, the battery status will be indicated in two
stages during normal measuring mode and all other sleep modes. In sleep mode
with 3.2 battery voltage, ‘Low Bat’ will be displayed on the display and the symbol
‘bat’ on the upper left side of the display will begin to flash. Here we recommend a
battery replacement. Furthermore, in sleep mode when the voltage drops below
3.1 V, ‘CHANGE BAT’ appears on the display. In this case, the battery must be
replaced.
Description of sleep modes
Sleep mode 0 (Default)
Sleep mode 0 is a mode with the lowest current consumption since the display will
be switched off during this mode and only a key press will reactivate it for the
duration of ‚Timeout‘ time. In Menu, the behaviour of the display remains the
same. The menu can be further used by pressing keys anytime.
ZOK-E/-Z
Page 10 ZOK K14/0917
Sleep mode 1
In sleep mode 1, the display will be active with an indication ‘SLEEP’ on the
display. In Menu, if the electronics goes to sleep mode, then the last displayed
content will be frozen. The menu can be further used by pressing keys anytime.
Sleep mode 2
In sleep mode 2, the counter values are periodically calculated and displayed on
the display, as long as the pulses are present on either Input A or Input B. In the
absence of pulses, the display will be turned off. The display and the counter
values will be updated after the duration of ‚Refresh rate‘ set by the user. If the
refresh rate is set to e.g. 5 sec, the counter values will be calculated and displayed
on display after these 5 seconds. Longer refresh rate will increase the battery life.
‚BAT LOW‘ will be displayed on the display if battery voltage falls below 3.2V and
‚CHANGE BAT‘ will be shown in case if the voltage falls below 3.1V.
In Menu, if the electronics goes to sleep mode, then the last displayed content will
be frozen. The menu can be further used by pressing keys anytime. In measuring
mode, instead of flow rate, indication ‘SLEEP’ will be shown.
Sleep mode 3
Sleep mode 3 is same as sleep mode 2 with the exception that the display is
always on.
The menu mode will not be automatically exited when no key is pressed for a
certain time. The menu mode remains active until the user presses the RET button
till the normally measuring mode appears. In battery operation, a long stay in
menu mode will shorten battery life.
ZOK-E/-Z
ZOK K14/0917 Page 11
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 type of battery is required to replace the supplied battery:
3.6 V Lithium, Size AA, minimum capacity 2200 mAh, IEC-Type CR14505
e.g: EVE Type ER14505M, SAFT LS14500, TADIRAN SL360S/SL760
Battery life duration: The achievable battery life is dependent on various factors:
On the frequency of activation of measurement / menu mode (in the measurement
/ menu mode, power consumption is higher)
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.
Batterylife
(Months)
SLEEPmode0SLEEPmode1MenuMode/
Measuringmode
17‐209‐101
Inputsignal
(Hz)
Batterylife
(Months)
SLEEPmode2SLEEPmode3
0208
188
10077
100033
ZOK-E/-Z
Page 12 ZOK K14/0917
7.5 Sensor Inputs
7.5.1 Active pulse signal
Power Supply: External DC-Supply
Signal input setting: „AKTIVES SIGNAL“
Wiring for ZOK-Z with Supply option 3 and 6:
Wiring for ZOK-Z with Supply option 0 and 6:
ZOK-E/-Z
ZOK K14/0917 Page 13
7.5.2 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 ZOK-Z Supply option 3 and 6:
ZOK-E/-Z
Page 14 ZOK K14/0917
Wiring for ZOK-Z with Supply option 0 and 6:
7.5.3 Reed switch (-R0 Sensor option)
Power supply : External DC-supply, Battery operation or
4-20 mA loop current
Signal input setting: „REED “
Wiring for ZOK-Z with Supply option 3 and 6:
ZOK-E/-Z
ZOK K14/0917 Page 15
Wiring for ZOK-Z with Supply option 0 and 6:
7.5.4 Inductor
Power supply: External DC-supply and battery operation
(Battery operation reduces battery life)
Signal input setting: „Inductor“
Wiring for ZOK-Z with Supply option 3 and 6:
ZOK-E/-Z
Page 16 ZOK K14/0917
Wiring for ZOK-Z with Supply option 0 and 6:
7.5.5 Namur-Sensor
Power supply: only external DC-supply
Signal input setting: „NAMUR“
Wiring for ZOK-Z with Supply option 3 and 6:
ZOK-E/-Z
ZOK K14/0917 Page 17
Wiring for ZOK-Z with Supply option 0 and 6:
7.5.6 Transducer model UMF2
Power supply: only external DC-supply
Signal input setting: „NPN“
Wiring for ZOK-Zx with Supply option 3 and 6:
ZOK-E/-Z
Page 18 ZOK K14/0917
Wiring for ZOK-Zx with Supply option 0 and 6:
7.5.7 PMG (magnetic inductive with frequency output)
Supply Voltage: only external DC power supply
Signal input setting: PNP
Wiring for ZOK-Zx with Supply option 3 and 6:
5
4
ZOK-E/-Z
ZOK K14/0917 Page 19
Wiring for ZOK-Zx with Supply option 0 and 6:
ZOK-E/-Z
Page 20 ZOK K14/0917
7.5.8 DOR
with voltage pulse output
DOR-with Hall sensor output
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