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HK Instruments DPT-Dual-MOD Series Installation Instructions page 4

Differential pressure transmitters

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STEP 5: INPUT SIGNAL CONFIGURATION
Input signals can be read over Modbus via DPT-MOD RS485 interface.
Signals
Accuracy for measurement
0...10 V
< 0,5 %
NTC10k
< 0,5 %
Pt1000
< 0,5 %
Ni1000/(-LG)
< 0,5 %
BIN IN (potential free contact)
The jumpers should be set according to the instructions below and the
value should be read from the right register. Both inputs can be config-
ured independently.
Figure 3 - Input signal configuration
J1
J2
J3
IN1
IN2
STEP 6: MODBUS REGISTERS
Function 04 - Read input register
Register
Parameter description
3x0001
Program version
3x0002
Pressure reading A
3x0003
Pressure reading B
3x0004
Input 1: 0...10 V
3x0005
Input 1: Pt1000
3x0006
Input 1: Ni1000
3x0007
Input 1: Ni1000-LG
3x0008
Input 1: NTC10k
3x0009
Input 2: 0...10 V
3x0010
Input 2: Pt1000
3x0011
Input 2: Ni1000
3x0012
Input 2: Ni1000-LG
3x0013
Input 2: NTC10k
AHU model only:
3x0014
Flow m3/s
3x0015
Flow m3/h
3x0016
Flow cfm
3x0017
Flow l/s
3x0018
Velocity m/s
3x0019
Velocity f/min
Function code 03 - Read input holding register - AHU model only
Register
Parameter description
4x0001
Manufacturer
Formula unit (Manufac-
4x0002
turer=7)
4x0003
K-Factor Integer
4x0004
K-Factor Decimal
4x0005
Response Time
Copyright HK Instruments 2017
Resolution
0,1 %
0,1 %
0,1 %
0,1 %
J1
J2
NTC10k / BIN IN
J3
J1
J2
Pt1000 / Ni10007(-LG)
J3
J1
J2
0...10 V
J3
Data Type
Value
Range
16 bit
0...1000
0,00...99,00
16 bit
-250...2500/7000
-250...2500/7000 (Pa)
16 bit
-250...2500/7000
-250...2500/7000 (Pa)
16 bit
0...1000
0...100 %
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
0...1000
0...100 %
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
-500...500
-50...+50 °C
16 bit
0...10000
0...100 m3/s
16 bit
0...30000
0...30000 m3/h
16 bit
0...30000
0...30000 cfm
16 bit
0...3000
0...3000 l/s
16 bit
0...1000
0... 100 m/s
16 bit
0...5000
0...5000 f/min
Data Type
Value
Range
16 bit
0...7
0...7
0=m3/s, 1=f/min, 2=m/s, 3=l/s, 4=cfm,
16 bit
0...5
5=m3/h
16 bit
0...9999
0...9999
16 bit
0...999
0...999
16 bit
0...20
0...20 s
MODBUS REGISTERS
Function code 02 - Read input status
Register
Parameter description
1x0001
Input 1: BIN IN
1x0002
Input 2: BIN IN
Function 05 - Write single coil
Register
Parameter description
0x0001
Zeroing function
Function code 06 - Write single register - AHU model only
Register
Parameter description
4x0001
Manufacturer
Formula unit (Manufac-
4x0002
turer=7)
4x0003
K-Factor Integer
4x0004
K-Factor Decimal
4x0005
Response Time
RECYCLING/DISPOSAL
The parts left over from installation should be
recycled according to your local instructions.
Decommissioned devices should be taken to a
recycling site that specializes in electronic waste.
WARRANTY POLICY
The seller is obligated to provide a warranty of five years for the deliv-
ered goods regarding material and manufacturing. The warranty period
is considered to start on the delivery date of the product. If a defect in
raw materials or a production flaw is found, the seller is obligated, when
the product is sent to the seller without delay or before expiration of
the warranty, to amend the mistake at his/her discretion either by re-
pairing the defective product or by delivering free of charge to the buy-
er a new flawless product and sending it to the buyer. Delivery costs
for the repair under warranty will be paid by the buyer and the return
costs by the seller. The warranty does not comprise damages caused by
accident, lightning, flood or other natural phenomenon, normal wear
and tear, improper or careless handling, abnormal use, overloading, im-
proper storage, incorrect care or reconstruction, or changes and instal-
lation work not done by the seller or his/her authorized representative.
The selection of materials for devices prone to corrosion is the buyer's
responsibility, unless otherwise is legally agreed upon. Should the man-
ufacturer alter the structure of the device, the seller is not obligated to
make comparable changes to devices already purchased. Appealing for
warranty requires that the buyer has correctly fulfilled his/her duties
arisen from the delivery and stated in the contract. The seller will give
a new warranty for goods that have been replaced or repaired within
the warranty, however only to the expiration of the original product's
warranty time. The warranty includes the repair of a defective part or
device, or if needed, a new part or device, but not installation or ex-
change costs. Under no circumstance is the seller liable for damages
compensation for indirect damage.
www.hkinstruments.fi
CONTINUED
Data Type
Value
Range
Bit 0
0...1
On - Off
Bit 0
0...1
On - Off
Data Type
Value
Range
Bit 0
0...1
On - Off
Data Type
Value
Range
16 bit
0...7
0...7
0=m3/s, 1=f/min, 2=m/s, 3=l/s, 4=cfm,
16 bit
0...5
5=m3/h
16 bit
0...9999
0...9999
16 bit
0...999
0...999
16 bit
0...20
0...20 s
Installation version 6.0 2017

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