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The D-Cell New Generation
Digital Strain Puck
* CANOpen and MantraCAN Versions Now Available! *
 
   

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Connects your strain gauge device directly to your computer - converts your Load Cell etc into an Intelligent Strain Transducer.

New Features with the New Generation:

Easy mounting via 2 mm screw
Connection via solder holes to either side of PCB
Low profile to fit in very small apertures
Baud rates to 230,400
High speed to 500 readings/second
Lower cost "Industrial Stability" option
±15kV ESD protected
Real mV/V calibration
Extreme noise immunity 5 x heavy industrial level
Transducer calibration
Remote shunt calibration
Very high stability (capable of 6000 Divisions OIML)
Peak and trough recording
Programmable dynamic filter
Wide operating voltage (5.4V - 18V)
DC Excitation for longer cable lengths
Diagnostics LED
ILE Inline Converter Housing now available to house your DCell

Advanced Characteristics:

An Intelligent Strain Transducer
High Performance
3 Year Manufacturer's Warranty
Serial Communications - excellent stability, RS485
Fieldbus connectivity - universal systems compatibility
Direct output in Engineering Units if required
Resolution selectable to 1 part in 400,000
"Plug in and go" sensor - no need for a separate amplifier
No need for an expensive A-to-D Card
Outstanding performance-to-cost ratio
Five-point transducer temperature compensation via comms
Seven-point transducer linearisation via comms
Sensor operation limit alarms
Reverse polarity protected
Continuous auto-zero operation
On-board temperature measurement as option
Optionally, temperature may be measured with an external probe
Ideal for high precision measurement at low cost
Non-expert maintenance
Capable of ATEX Approval
Self diagnostics alerts user to common Strain Gauge faults:
               Excitation short-circuits
               Input over- or under-range
               Cell scaling over- or under-range
               System scaling over- or under-range
               Temperature over- or under-range
               Communication errors
Small package size
Works with most common strain gauge devices
Saves cost and space
All you need to add is a DC power supply
Simple to use
Competitive prices with generous quantity discounts
Ideal for OEM, R&D, Production, QA, QC applications
Can connect up to 254 devices on one RS485 bus
Full CE approval

Options:

Temperature compensation via external sensor
OEM Application Software through Bootloader,
  
allowing special functions to be programmed via RS485
RS232 - RS485 Converter
Alternative sensitivities (1 - 20 mV/V)

 


Precision vs Speed of Reading
:

Generally, the higher the precision required from an analogue-to-digital system, the slower the speed of conversion to digital format. The D-Cell allows you to select the resolution and speed of reading that you require according to the Table below:

Speed
Readings/sec
(Hz)
Resolution
DLCH Models
High Stability

DLCS Models
Industrial Stability

Divisions
1 part in...

ppm
% of
Full Scale
Divisions
1 part in...
ppm % of
Full Scale
1
400,000
2.5
0.00025
100,000
10
0.0010
10
120,000
8.3
0.00083
40,000
25
0.0025
100
50,000
20
0.0020
10,000
100
0.0010
500
18,000
56
0.0056
5,000
200
0.0500

Choice of Communication Options:

RS485:
ASCII Protocol
.
MANTRABUS II Protocol
.
MODBUS Protocol
CAN Versions:

MantraCAN Protocol
CANOpen Protocol

Product Order Codes:

.
High Stability DLCH
Industrial Stability DLCS
RS485 ASCII Protocol
DLCHASC
DLCSASC
RS485 MANTRABUS II Protocol
DLCHMAN
DLCSMAN
RS485 Modbus RTU Protocol
DSLCHMOD
DLCSMOD
MantraCAN Protocol
DSLCHCAN
DLCSCAN
CANOpen Protocol
DLCHCOP
DLCSCOP
* Available soon

Accessories:

Dcell Evaluation Kits
RS232 - RS485 Converter
VisualLink Rapid Development SCADA software


Specifications:

Description
Units
High Stability Industrial Stability
Min Typ Max Min Typ Max
Bridge Excitation:
VDC
4.5
5
5.25
4.5
5
5.25
Bridge Impedence:
Ohms
320
350
5,000
320
350
5,000
Bridge Sensitivity:
mV/V
-3
-
+3
-3
-
+3
Offset Temperature Stability:
ppm/°C
-
1
4
-
5
10
Gain Temperature Stability:
ppm/°C
-
3
5
-
30
50
Offset Stability With Time:
% FR
-
0.002
0.008
-

0.0035

0.016
Gain Stability With Time:
ppm of FR/1st Year
-
-
30
-
-
300
Nonlinearity:
% FR
-
0.0005
0.0025
-
0.0005
0.0025
Internal Resolution:
Counts/Divisions
-
16 Million
-
-
16 Million
-

Resolution
@ 1 Hz:

Counts/Divisions over 100s
-
400,000
-
-
100,000
-
Resolution
@ 10 Hz:
Counts/Divisions over 100s
-
120,000
-
-
40,000
-
Resolution
@ 100 Hz:
Counts/Divisions over 100s
-
50,000
-
-
10,000
-
Resolution
@ 500 Hz:
Counts/Divisions over 100s
-
18,000
-
-
5,000
-

Optional:
Temperature Measurement Resolution

°C
-
0.1
-
-
Not available
-

Optional:
Temperature Measurement Accuracy

°C
-
1
-
-
Not available
-
Power Supply Voltage:
VDC
5.4
12
18
5.4
12
18
Power Supply Noise/Ripple:

mV ac
peak-peak

-
-
100
-
-
100
Power Supply Current (350R Bridge):
mA
-
45
60
-
45
60
Power @ 10V Supply (350R Bridge):
mW
-
350
-
-
350
-
Sensor Impedence:
Ohms
320
350
5,000
320
350
5,000

Excitation System:

-
-
4-wire
-
-
4-wire
-
Operating Temperature Range:
°C
-40
-
+85
-40
-
+85
Operating Temperature Range for OIML 6000d:
°C
-10
-
+55
-
-
-
Storage Temperature:
°C
-40
-
+85
-40
-
+85
Humidity:
% RH Non-condensing
0
-
95
0
-
95
RS485 Data Rate:
Baud
2,400
-
230,400
2,400
-
230,400
CAN Bit Rate:
Bits/s
10k
-
1M
10k
-
1M
Package:
PCB with metal shield, IP40 protected
Dimensions:

RS485 Versions: Diameter 20 mm x Height 5 mm
CAN Versions: Diameter 20 mm x Height 10.5 mm

Dcell wiring diagram

For 6-wire strain gauges, connect +SENSE to +EXC and -SENSE to -EXC

Environmental Approvals:

EMC Directive 89/336/EEC
EMC Emissions
EN 50 081-1 :1992 (Light Industrial)
EN 50 081-2 :1992 (Heavy Industrial)
EMC Immunity
EN 50 082-1 :1992 (Light Industrial)
(RF Field Test 0.001% FS over 30 to 500MHz)
EN 50 082-2 :1992 (Heavy Industrial)
(RF Field Test 0.005% FS over 30 to 500MHz)
Low Voltage Directive 73/23/EEC amended by 93/68/EEC
IEC 1010-1 :1990
BSEN 610101 :1993

 

Downloads:

Please contact us for a Quotation

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HIGH STABILITY OPTIONS
(ALL HAVE RS485 or CAN COMMS)


DLCHASC High Stability, ASCII Protocol  £152.25


DLCHMAN High Stability, Mantrabus II Protocol  £152.25

 


DLCHMOD High Stability, MODBUS Protocol  £152.25

 



DLCHCAN High Stability, MantraCAN Protocol  £175.75


 



DLCHCOP High Stability, CANopen Protocol  £175.75


 

 

DCell EVALUATION KIT DLCHEKASC
with DLCHASC High Stability, ASCII Protocol  £200.00


 


DCell EVALUATION KIT DLCHEKMAN
with DLCHMAN High Stability, Mantrabus II Protocol  £200.00


 


DCell EVALUATION KIT DLCHEKMOD
with DLCHMOD High Stability, MODBUS Protocol  £200.00


 


DCell EVALUATION KIT DLCHEKCAN
with DLCHCAN High Stability, MantraCAN Protocol  £400.00
(Includes USB CAN Converter)


 

DCell EVALUATION KIT DLCHEKCOP
with DLCHCOP High Stability, CANopen Protocol  £400.00
(Includes USB CAN Converter)


 

INDUSTRIAL STABILITY OPTIONS
(WITH RS485 or CAN COMMS)


DLCSASC Industrial Stability, ASCII Protocol  £107.50

DLCSMAN Industrial Stability, Mantrabus II Protocol  £107.50

 


DLCSMOD Industrial Stability, MODBUS Protocol  £107.50