Kobold DRB-G R Series User manual

Operating Instructions
for
Dosing Electronic
Model: ZED-D
or DF-…DLxxx
or Model-…GxxR

ZED-D
page 2 ZED-D K11/0522
1. Contents
1. Contents........................................................................................................2
2. Note ..............................................................................................................3
3. Instrument Inspection....................................................................................3
4. Regulation Use .............................................................................................3
5. Operating Principle........................................................................................4
6. Electrical Connection ....................................................................................5
6.1 ZED-D, DRB-…GxxR, DPE-…GxxR fieldhousing and control panel
installation............................................................................................5
6.2 DF-…DLxxx, Model-…GxxR cable connection................................5
6.3 Model-…GxxR plug connection .......................................................6
6.4 Connection example............................................................................6
7. Operation / Configuration / Adjustments .....................................................10
7.1 General..............................................................................................10
7.2 Function of the control keys...............................................................11
7.3 Character explanation for main menu................................................12
7.4 General Settings................................................................................13
7.5 Flow and analogue output..................................................................15
7.6 Relay output.......................................................................................17
7.7 Dosing................................................................................................19
7.8 User alignment and Service-Settings.................................................21
7.9 Error report ........................................................................................24
8. Relay Functions ..........................................................................................25
8.1 Dosing (REL S1) with correction amount & fine dosing (REL 2)........25
8.2 Dosing (REL S2) & Pump control (REL S1).......................................26
8.3 Switching characteristic limit value ....................................................27
8.4 Switching characteristic window ........................................................27
9. Technical Information..................................................................................28
10. Order Codes ...............................................................................................29
11. Dimensions .................................................................................................30
12. EU Declaration of Conformance .................................................................31
13. UK Declaration of Conformity......................................................................32
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

ZED-D
ZED-D K11/0522 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 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
([e-mail]) 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.
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 /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
•Dosing Electronic model: ZED-D
4. Regulation Use
Any use of the Dosing Electronic, model: ZED-D, which exceeds the
manufacturer’s specification, may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.

ZED-D
page 4 ZED-D K11/0522
5. Operating Principle
The evaluation unit changes the frequency signal of the pickup into a 3(4)-digit
flow reading with adjustable scale (topline of display), and a scalable analogue
signal. The dosage is displayed in the bottom line of the display. The unit of
measurement can be selected.
Included are two relays with floated output changeover contacts for various
functions. The relay (S1) can be used to execute the flow monitoring, total volume
monitoring, fine dosage or the pump control.
When the flow is being continuously monitored, it checks if the freely adjustable
limits are exceeded or fallen short of. A choice can be made between threshold
value and window monitoring. Switching point, hysteresis, window point, and
switch-on or switch-off delay can be set as desired. If monitoring of the total
volume is selected, a check is made to see if the adjustable quantity limit is
exceeded.
The dosage relay (S2) switches on when the dosage process starts, and then
switches off again, once the dosage has flowed through. The dosage process can
be interrupted by using the Start/Stop switch. By taking a correction quantity into
account, it is possible to take any special features or conditions of the system into
account. By entering a fine dosage, the bypass valve can be controlled with the
relay (S1). A red LED indicates the relay’s switching status.
The Analogue output is available as a current output with 0(4)...20 mA or a
voltage output with 0...10 V. The parameter names in the menu can be displayed
in either German or English. If used where the flow readings change rapidly, the
display can be pacified and the analogue reading averaged by switching on some
software. If the maximum set flow (exceeded range) is exceeded, it will be shown
on the display. The set parameters can be protected against unauthorised
alteration using a password function.
Range of functions
Dosage and flow meter with digital display, switch and analogue output:
•Measurement and display of dosage, total and flow Quantities
•Free scaling using Teach-In or input of frequency and measured value
•Interval counter (number of dosing processes)
•2 control inputs
•1 dosage output
•1 switching output, freely programmable as flow monitor
or for monitoring the total quantity
•Analogue output 0(4)-20 mA or 0-10 V

ZED-D
ZED-D K11/0522 page 5
6. Electrical Connection
6.1 ZED-D, DRB-…GxxR, DPE-…GxxR
fieldhousing and control panel installation
*) Ctrl 1 -- GND => Start
Ctrl 2 -- GND => Stop
Ctrl 1 -- Ctrl 2 -- GND => Reset Dosing
6.2 DF-…DLxxx, Model-…GxxR
cable connection
Wire number
DF Dosing electronics
1
+24 V
DC
2
GND
3
4-20 mA / 0-10 V
4
GND
5
Ctrl 1 *)
6
Ctrl 2 *)
7
Relay S1 N/O
8
Relay S1 COM
9
Relay S2 N/O
10
Relay S2 COM
*) Ctrl 1 -- GND => Start
Ctrl 2 -- GND => Stop
Ctrl 1 -- Ctrl 2 -- GND => Reset Dosing
*)

ZED-D
page 6 ZED-D K11/0522
6.3 Model-…GxxR
plug connection
-G31 R
+ Vs
Ctrl 2 *
0 - 10 V Out
DC
GND
1
30 V / 2 A
AC/DC
3
4
5
1
3
4
5
6
S 2
8
Ctrl 1 *
-G34 R
+ Vs
Ctrl 2 *
0 (4) - 20 mA Out
GND
1
30 V / 2 A
AC/DC
3
4
5
1
3
4
5
6
S 2
8
Ctrl 1 *
*) Ctrl 1 -- GND => Start
Ctrl 2 -- GND => Stop
Ctrl 1 -- Ctrl 2 -- GND => Reset Dosing
6.4 Connection example
PNP-Sensor NPN-Sensor

ZED-D
ZED-D K11/0522 page 7
NAMUR-Sensor
Operation of ZED-D on flow meters with transmitters UMF2B, UMF3 and
UMC4 for dosing applications
The ZED-D dosing device is connected to the UMF2B, UMF3 or UMC4 converter
via the frequency output.
2
1
3
4
5
6
7
8
9
10
11
12
13
14
PNP
GND
NPN
Namur
F-Input
Impulse-
Impulse+
UMF-2 / UMF-3 /
UMC-4
0 - 1000 Hz
ZED-D

ZED-D
page 8 ZED-D K11/0522
The following parameterizations must be made:
Settings on the UMF2B / UMF3 / UMC4 transmitter (see corresponding
operating instructions):
−Enter customer password 0002 (UMF2B, UMF3: Chapter 13.2.1, UMC4:
7.2.2.1).
−In the function class "Pulse output" / "Pulse or frequency output" set the
pulse output to frequency output (UMF2B, UMF3: Chapter 13.6.1; UMC4:
7.2.8.1). Select the unit l/min (UMC4: kg/min) in the function class "Flow" /
"Flow unit". Any other unit can be selected. When calculating K0 later in the
ZOK, however, it must first be converted to l/min. - Read out the end value
in l/min (kg/min) in the function class "Flow" / "Flow end value". If the flow
rate is the same as the final value, the converter outputs 1000 Hz.
−With short filling times, the smallest possible time constant should be set
(UMF2B: Chapter 13.4.1; UMF3: Chapter 13.4.2; UMC4: 7.2.4.1).
−The filter is switched off (UMC4: "weak") (UMF2B: Chapter 13.4.5; UMF3:
Chapter 13.4.1; UMC4: 7.2.4.5). In this way, the measured value can follow
a change in flow rate as quickly as possible. This makes the flow rate
indication in the display more restless, but this is not relevant for the
accuracy of the dosing.
−The low flow rate should be set to a small value, e.g. 1%, so that no pulses
are counted when the medium is standing still (UMF2B: Chapter 13.4.2;
UMF3: Chapter 13.4.3; UMC4: 7.2.4.2).
Settings on the ZED-D:
See chapter 7.8
FlowVal = End value of the UMFx in l/min (or kg/min)
FlowUnit = l/min
Freq.Val = 1000 Hz

ZED-D
ZED-D K11/0522 page 9
Function check:
Activate the simulation for the frequency output on the UMF2B, UMF3 or UMC4
converter:
- Select function class "Simulation" / "Simulation specification Q / direct" =>
"Direct".
- Set the frequency to 1000 Hz under "Simulation direct pulse output".
- Switch on the simulation under "Simulation off / on"
The ZED-D must now display a flow rate that is equal to the final value of the
UMF2B (UMF3, UMC4)
Please note:
If the end value is exceeded, there is a risk that at a frequency above 1100 Hz,
the frequency transmission between the converter and ZED-D will no longer
function properly and pulses will be lost. Please also observe the display of the
UMF2 (UMF3, UMC4) during a sample filling, whether an error "Pulse output
overdriven" or "Current overdriven" is reported. In this case, the final value in
UMF2 (UMF3, UMC4) must be adapted and the FlowVal parameter recalculated
in the ZED-D. The measuring range of the UMF2B (UMF3, UMC4) should be
adapted to the maximum expected flow rate in order to make good use of the
frequency range of 1000Hz. If, for example, the maximum flow rate is 30 l / min,
the end value should be set to e.g. 33 l/min (10% reserve) to allow the end value
to be exceeded slightly.

ZED-D
page 10 ZED-D K11/0522
7. Operation / Configuration / Adjustments
7.1 General
Only the menu items which lines are marked in the selection matrix in grey colour,
are available in the respective instrument version.
Italic written values are blinking in the display, if they have been chosen for
any input.
The parameter can only be changed, if the security code has been
entered correctly! The message „locked“ will appear if the input
has not been activated.