PR electronics 2261 User manual

PERFORMANCE
MADE
SMARTER
Product manual
2261
mV transmitter
TEMPERATURE | I.S. INTERFACES | COMMUNICATION INTERFACES | MULTIFUNCTIONAL | ISOLATION | DISPLAY
No. 2261V103-UK
From serial no.: 211141001

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2261V103-UK 3
mV transmitter
2261
Table of contents
How to dismantle system 2200 .......................................................................... 4
Application ............................................................................................. 5
Technical characteristics ................................................................................. 5
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Analog input ......................................................................................... 5
Digital input ......................................................................................... 5
Taring ............................................................................................... 5
Standard current / voltage output ........................................................................ 5
Transducer supply....................................................................................... 6
Sense .................................................................................................. 6
Electrical specifications .................................................................................. 6
Order ................................................................................................... 8
Hardware programming .................................................................................. 8
Block diagram ........................................................................................... 8
Routing diagram ........................................................................................ 9
Programming / operating the function keys ............................................................... 10
Document history ....................................................................................... 13

4 2261V103-UK
How to dismantle system 2200
Picture 1:
The back panel of the module is detached from the housing by way of a
screwdriver.
Picture 2:
After this, the back panel can be pulled out together with the PCB, but
please notice the position of the PCB as there is a number of different
positions in the house. Do not pull the wires unnecessarily, instead pull the
PCB.
Switches and jumpers can now be moved.
When assembling the back plate and housing, please make sure no wires are
stuck.

2261V103-UK 5
mV transmitter 2261
• Load cell amplifier
• mV to current / voltage conversion
• Front-programmable / LED display
• Relative calibration of input span
• NPN / PNP input for external taring
• Supply for standard transducers
Application
Tank filling and draining, weighing with a taring function, measurement of cable tensile force, level control and signal
conversion / amplification.
The 2261 converts bipolar mV signals from transducers supplied directly by the module to standard current / voltage signals.
The 2261 is suitable for load cell applications. By way of the relative calibration function the scale can be tared, i.e. 0 and
100% calibrated without the need of the equivalent load. By way of the taring function the measured range is set to either
0% when filling or 100% when draining.
Technical characteristics
The 2261 is microprocessor-controlled and basic-calibrated meaning that input and output can be programmed acc. to the
requested signal range without any readjustment. This guarantees high accuracy and flexibility.
The user interface consists of a 3-digit display and 3 front function keys which are used for taring or change of input / output
signal range.
Inputs
Analog input
The analog input can be programmed for voltage in the range -40...100 mVDC with a min. span of 10 mV and max. offset of
70% of max. mV value.
A percentage overrange of the selected measurement range can be defined, thereby making the unit react to an mV input
outside the selected 0 and 100% range.
The display will show the input percentage.
The output must be scaled in such a way that the selected overrange is within the allowed output signal range.
Digital input
The digital signal can be selected as either NPN (short circuit to gnd.), or PNP (+24 VDC).
Taring
Taring can either be by way of the digital input or from the front.
At 0% taring, the analog input will show 0% after taring. At 100% taring, the analog input will show 100% after taring,
corresponding to tara + net weight = gross weight.
The analog input span is not changed but is kept relative to the new offset value.
The taring function can be disabled at the front.
Standard current / voltage output
The analog output can be programmed to current in the range 0...20 mA or voltage in the range 0...10 VDC with a min. span of
5 mA or 250 mVDC with max. offset of 50% of the selected max. value.
By short-circuiting pins 2 and 3, the voltage signal is available between pins 2 and 1.
For voltage signals in the range 0...1 VDC, a 50 Ω shunt (DP 2-1) is applied; in the range 0...10 VDC, a 500 Ω shunt (DP 2-2) is
applied.
When both voltage and current signals are used simultaneously, the mA loop must go to ground through the internal shunt.
Front error LED
At an incorrect output, the red LED will flash, e.g. at overrange saturation.

6 2261V103-UK
Transducer supply
Front-programmable to 5...13 VDC. It is up to the customer to ensure a max. load of 230 mA (e.g. 6 parallel 350 Ω load cells).
Sense
When the transducer supply is applied, the sense input can be used for compensation for cable resistance to the transducer.
Electrical specifications
Environmental conditions
Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +60°C
Calibration temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20...28°C
Relative air humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)
Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP50
Mechanical specifications
Dimensions (HxWxD) (D is excl. pins) . . . . . . . . . . . . . . . . . . . . . . . . 80.5 x 35.5 x 84.5 mm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 g
Common specifications
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.2...28.8 VDC
Internal consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 W
Max. consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 W
Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Min. 60 dB
Signal dynamics, input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 bit
Signal dynamics, output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 bit
Updating time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ms
Response time, programmable. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.06...999 s
Temperature coecient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.01% of span/°C
Linearity error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.1% of span
Eect of supply voltage change. . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.002% of span/%V
Auxiliary voltages:
Transducer supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5...13 VDC
Load (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 mA
EMC immunity influence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.5%
Electrical specifications - INPUT
mV input
Measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40...100 mV
Min. measurement range (span) . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mV
Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70% of selected max. value
Input in relation to supply gnd. . . . . . . . . . . . . . . . . . . . . . . . . . . . > -5 V and < +10 V
Max. cable resistance per wire. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ω
Suppression of transducer cable resistance . . . . . . . . . . . . . . . . . . . . > 300
Input resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 10 MΩ
Overrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...999% of selected measurement range
Digital input
NPN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull up 24 VDC / 6.9 mA
PNP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull down 0 VDC / 6.9 mA
Trig level low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 6 VDC
Trig level high . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 10.5 VDC
Pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 30 ms
Electrical specifications - Output
Current output
Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20 mA
Min. signal range (span). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selected max. value
Load (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA / 600 Ω / 12 VDC
Load stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.01% of span/100 Ω
Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 23 mA

2261V103-UK 7
Voltage output through internal shunt
Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...10 VDC
Min. signal range (span). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mVDC
Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selected max. value
Load (min.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 kΩ
Voltage limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 11.5 VDC
Observed authority requirements
EMC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/30/EU & UK SI 2016/1091
RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011/65/EU & UK SI 2012/3032
EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TR-CU 020/2011
Of span = Of the presently selected range

8 2261V103-UK
Order
Type
2261
Hardware programming
JP1 JP2 Output range MENU 4.3
OFF OFF 0...10 mA
0...20 mA
001
002
ON OFF 0...500 mV
0...1000 mV
003
004
OFF ON 0...5 V
0...10 V
005
006
Block diagram
2261
CPU
A / D
DC
PGA D / A
Vreg
NPN
PNP
0...20
mA
3
2
A
v v
A
I+
V+
DC 10
9
8
5
7
mV
EEPROM JP1 JP2
50 500
1
6
4
11
+
-
e
Supply + 24VDC
Supply gnd.
Input +
Sense
Sense
NC
Digital Input
+ 24 VDC
Input -
V Excitation +
V Excitation gnd.
Gnd.
I + V
Out
I
Out
V
Out
24 VDC
Spec.
V Out
R 68

2261V103-UK 9
Routing diagram
0.0
5.0 5.1 5.5
4.0 4.1
5.2 5.3
1.0 1.3
3.0 3.1 3.2
1.1 1.2
4.2 4.3 4.4
5.4
0 … 999
Taring
If no buttons are pressed for a period of 2 minutes,
display returns to stage 0.0
040 = enable change in all stages
- - - = disable change
Routing diagram
Taring
Select
application
Frequency
suppression
50 Hz
60 Hz
Analog
output Output 0%
Transducer supply
0.06...999 s
Response
time
Password code
Input
High cal. %Calibration
Overrange
Digital input
type
Current or
Voltage
001 = 0...10 mA
002 = 0...20 mA
003 = 0...500 mV
004 = 0...1000 mV
005 = 0...5 V
006 = 0...10 V
Output 100%
Program
access
5.0...13 VDC
If the key is pressed for a period > 2 sec.
Input 0%
0...20.0 mA
0...10.0 VDC
0...20.0 mA
0...10.0 VDC
Low cal. %
0...999% of span
0...100% 0...100%
Input 100%
-40...100 mV -40...100 mV
5.1
5.0
Memory
Programming
Press and hold , then press
to store changes
Change of parameter
Next digit or point
Go to entry menu / Leave
menu without changes

10 2261V103-UK
Programming / operating the function keys
Documentation for routing diagram
General
The programming is menu-controlled. The main menus are numbered in level 0 (x.0), and the submenus are numbered in level
1 (x.1 to x.5). Each submenu has an accompanying entry menu. The menus are structured in such a way that the menus most
frequently used are closer to the default menu 0.0. Please note that programming is only possible when submenu 5.4 PAS has
the value 040.
Main, sub, and entry menus are selected by the 3 function keys 2, 3, and 1as outlined in the routing diagram. Activating 2
in the submenus will display the set value in the entry menu.
In entry menus, the digit that can be changed will flash. Active digit position is
shifted by the 3key and changed by the 1key. When the decimal point flashes, its
position can be shifted by the 1key.
In entry menus with fixed parameters, you switch between the parameters by the 1
key.
Store by first activating the 3key and then the 1key simultaneously.
0.0 Default - The input value is displayed in % of the input span.
The display returns to default at power ON, or if no keys have been activated
for a period of 2 minutes.
3tAR - Taring
When submenu 5.1 has been selected for {tLO or tHI}, activating the 3key for more than 2 s will tare the input value to
the value it had when activated. The input span is not affected but is kept relative to the new offset value.
0.0
5.2 EFS/dFS - enable / disable front setting
Front Setting
Downcount ramp
Store and exit front setting
Upcount ramp
1.0 In - Setting of input span
1.1 InL - Setting of 0% input value
Valid selections are -40...100 mV.
1.2 InH - Setting of 100% input value
Valid selections are -40...100 mV.
5.15.0
Memory
Programming
Press and hold , then press
to store changes.
Change of parameter
Next digit or point
Go to entry menu / Leave
menu without changes

2261V103-UK 11
1.3 InO - Setting of overrange
The analog output follows the set input span on a linear basis {1.1 - InL and 1.2 - InH} with a limit at 20.5 mA
(normally approx. 103% input span).
When the input signal is < or > the set input span, the display will track this and show -xx or xxx% until the input
begins to limit.
The overrange is set in % of the input span and guarantees that the input does not begin to limit within the
percentage overrange, neither below nor above the set input span, provided that the input span ± overrange is
within the signal range -40 to 100 mV.
Setting the overrange does not affect the analog output.
If the overrange measurement is to be included in the analog output signal, the output signal for the set input span
must be selected to provide room for the overrange within the signal range of the output (0...20 mA / 0...10 VDC).
Example:
A signal of 5...15 mV corresponds to a weight of 0...1000 kilo.
It must be possible to detect a 50% overrange of the scale on the analog output of the mV transmitter at the same
time as the display shows 150%.
The following settings will result in the requested function with an output signal of 4...19.9 mA:
Input: InL = 5.0, InH = 15.0, InO = 50.0
Output: OL = 4.0, OH = 14.6, UI = 002
Please note that the output span has been set to (14.6 mA - 4.0 mA) = 10.6 mA which, with an addition of 50%, will
result in a span of (10.6 + (10.6 * 50/100)) = 15.9 mA.
3.0 CAL - Setting of calibration values
The calibration function is a relative calibration, i.e. the percentage input value for the low calibration must be entered in
submenu 3.1{CLO - Calibration Low}, and the percentage input value for the high calibration must be entered in submenu
3.2 {CHI - Calibration High}. The entered percentages are used for calculating the actual input span.
When {CHI - Calibration High} is activated, the calculation is made using the percentages in {CLO} and {CHI}.
3.1 CLO - Setting of low calibration value
Key 2. Enter the calibration value by the 3and 1keys.
Connect the low calibration signal to the input. Activate the 3and 1keys simultaneously.
3.2 CHI - Setting of high calibration value
Key 2. Enter the calibration value by the 3and 1keys.
Connect the high calibration signal to the input. Activate the 3and 1keys simultaneously.
The input span is now calculated using the entered calibration values. The mV values are read from the submenus
{1.1 - InL and 1.2 - InH}.
4.0 OUt - Setting of analog output
4.1 OL - Low - 0% setting of analog output
Valid selections are current in the range 0.0...20.0 mA or voltage in the range 0.0...10.0 VDC.
4.2 OH - High - 100% setting of analog output
Valid selections are current in the range 0.0...20.0 mA or voltage in the range 0.0...10.0 VDC.
4.3 UI - Selection of current or voltage output
See the hardware programming for correct jumper setting. Possible selections are:
001 = Current output in the range 0...10 mA
002 = Current output in the range 0...20 mA
003 = Voltage output in the range 0...500 mV
004 = Voltage output in the range 0...1000 mV
005 = Voltage output in the range 0...5 V
006 = Voltage output in the range 0...10 V
4.4 rEP - Setting of response time
Valid selections are 0.0...999 s. If the set response time is < 0.06 s, the response time will be 0.06 s.

12 2261V103-UK
5.0 APP - Application selection
5.1 tAR - Selection of taring type
Possible selections are tLO - 0% taring enable, tHI - 100% taring enable, or dtA - taring disabled.
If tLO is selected, activating the 3key for more than 2 s or activating the digital input will tare the input signal to
0%.
If tHI is selected, activating 3for more than 2 s or activating the digital input will tare the input signal to 100%
(max.).
The 2 types of taring can be used for filling or emptying respectively.
If a 0% (tLO) taring is selected, the analog input will show 0% after taring. If a 100% (tHI) taring is selected, the
input will show 100% after taring corresponding to tara + net weight = gross weight.
Taring is either from the digital input or from front.
5.2 dIN - Selection of digital input type
Possible selections are:
PnP = mechanical contact or open collector transistor connected to +24 VDC.
nPn = mechanical contact or open collector transistor connected to gnd.
5.3 SUP - Setting of supply voltage for transducer
Valid selections are 5.0...13 VDC.
5.4 PAS - Setting of password
Key 2. When the password is 040, changes can be made in all menu points. When the password is <> 040,
programming is blocked in all menu points, but access is open for reading the settings. Enter the password by the 3
and 1keys.
When the password is correct, activate 3and 1simultaneously. Valid selections are 0...999.
5.5 Frq - Selection of common mode frequency suppression
Possible selections are 50 or 60 Hz.

2261V103-UK 13
Document history
The following list provides notes concerning revisions of this document.
Rev. ID Date Notes
103 2232 UKCA added.

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