Copyright HK Instruments 2022
www.hkinstruments.fi
Installation version 8.0 2022
The seller is obligated to provide a warranty of five years for the delivered 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 pro-
duction 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 repairing the defective product or by delivering
free of charge to the buyer 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, improper storage, in-
correct care or reconstruction, or changes and installation work not done by the
seller. The selection of materials for devices prone to corrosion is the buyer’s
responsibility, unless otherwise is legally agreed upon. Should the manufacturer
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 defec-
tive part or device, or if needed, a new part or device, but not installation or
exchange costs. Under no circumstance is the seller liable for damages compen-
sation for indirect damage.
Register
Parameter description
Data Type
Value
Range
4x0001
Manufacturer
16 bit
0...8
0 = FläktWoods
1 = Rosenberg,
2 = Nicotra-Gebhardt
3 = Comefri
4 = Ziehl-Abegg
5 = ebm-papst
6 = Gebhardt
7 = Nicotra
8 = Common probe
4x0002
Formula unit (if manufacturer
selection = common probe)
16 bit
0...5
0=m3/s, 1=m3/h, 2=cfm,
3=l/s, 4=m/s, 5=f/min
4x0003
K-factor integral
16 bit
0...9999
0...9999
4x0004
K-factor decimal
16 bit
0...999
0...999
4x0005
Response time
16 bit
0...20
0...20 s
4x0006
PID control unit
16 bit
0...1
0=Pressure, 1=Flow
4x0007
PID pressure ref
16 bit
-250...2500 (model 2500)
-700...7000 (model 7000)
-250...2500 (model 2500)
-700...7000 (model 7000)
4x0008
PID flow ref integer
16 bit
0...30000
0...30000
4x0009
PID flow ref decimal
16 bit
0...999
0...999
4x0010
PID p value
16 bit
0...10000
0...10000
4x0011
PID i integer
16 bit
0...1000
0...1000
4x0012
PID i decimal
16 bit
0...99
0...99
4x0013
PID d integer
16 bit
0...1000
0...1000
4x0014
PID d decimal
16 bit
0...99
0...99
4x0015
Overdrive value
16 bit
0...100
0...100 %
4x0016
Overdrive active
16 bit
0...1
0=Off, 1=On
4x0017
Temperature compensation
16 bit
0…1
0=Off, 1=On
4x0018
Temp. comp. start TE
16 bit
-45…50
-45…50 °C
4x0019
Temp. comp. stop TE
16 bit
-50…45
-50…45 °C
4x0020
Temp. comp. drop integer part
16 bit
0…99
0…99 %
4x0021
Temp. comp. drop decimal part
16 bit
0…999
0.0…0.999 %
4x0022
PID Pressure Ref SP 1
16 bit
-250...2500 (model 2500)
-700...7000 (model 7000)
-250...2500 (model 2500)
-700...7000 (model 7000)
4x0023
PID Pressure Ref SP 2
16 bit
-250...2500 (model 2500)
-700...7000 (model 7000)
-250...2500 (model 2500)
-700...7000 (model 7000)
4x0024
PID Flow Ref SP 1 integer
16 bit
0...30000
0...30000
4x0025
PID Flow Ref SP 1 decimal
16 bit
0...999
0...999
4x0026
PID Flow Ref SP 2 integer
16 bit
0...30000
0...30000
4x0027
PID Flow Ref SP 2 decimal
16 bit
0...999
0...999
4x0028
Flow unit (display and PID SP)
16 bit
0...5
0=m3/s, 1=m3/h, 2=cfm,
3=l/s, 4=m/s, 5=f/min
Function code 03 - Read holding register, Function code 06 - Write single register,
Function code 16 - Write multiple registers
Function code 05 - Write single coil
Register
Parameter description
Data Type
Value
Range
0x0001
Zeroing function
Bit 0
0...1
0=Off, 1=On
The parts left over from installation should be recycled
according to your local instructions. Decommissioned
devices should be taken to a recycling site that special-
izes in electronic waste.
STEP 9: MODBUS REGISTERS
RECYCLING/DISPOSAL
WARRANTY POLICY
Function code 02 - Read input status
Register
Parameter description
Data Type
Value
Range
1x0001
Input: BIN IN
Bit 0
0...1
0=Off, 1=On
MODBUS REGISTERS
CONTINUED
STEP 7: Fixed output
Fixed output settings can be enabled to set the control output to a preset value. Pri-
mary purpose of this functionality is to enable the adjustment of air valves and ter-
minals without the DPT-Ctrl affecting the duct pressure or air flow. It can also aid in
troubleshooting the installation.
1) To enable the fixed output, scroll to its position in the menu.
2) Press the select button and select the desired fixed output value. The output will
now stay at this value indefinitely. In normal operation mode (shown below), the
upper row of the display will show FIXED xx % to indicate the output is fixed.
FIXED OUTPUT
OFF
SELECT
UP
DOWN
FIXED 50 %
184 Pa
3) To enable the normal control output and disable the fixed output, scroll to its
position, select it and set value to OFF.
Fixed output function is also available via Modbus. (4x0016: Overdrive active,
4x0015: Overdrive value)
Function code 04 - Read input register
Register
Parameter description
Data Type
Value
Range
3x0001
Program version
16 bit
0...1000
100...9900
3x0002
Pressure reading A
16 bit
-250...2500 (model 2500)
-700...7000 (model 7000)
-250...2500 (model 2500)
-700...7000 (model 7000)
3x0003
Input 0...10 V
16 bit
0...100
0...100 %
3x0004
Input PT1000
16 bit
-500...500
-50...+50 °C
3x0005
Input Ni1000
16 bit
-500...500
-50...+50 °C
3x0006
Input Ni1000-LG
16 bit
-500...500
-50...+50 °C
3x0007
Input NTC10k
16 bit
-500...500
-50...+50 °C
3x0008
Flow m3/s
16 bit
0...10000
0...100 m3/s
3x0009
Flow m3/h
16 bit
0...30000
0...30000 m3/h
3x0010
Flow cfm
16 bit
0...30000
0...30000 cfm
3x0011
Flow l/s
16 bit
0...3000
0...3000 l/s
3x0012
Velocity m/s
16 bit
0...1000
0...100 m/s
3x0013
Velocity f/min
16 bit
0...5000
0...5000 f/min
STEP 8: Using the 2SP-feature
2SP (setpoint) is a feature with a binary input to select between two user-adjustable
setpoints. The desired setpoint can be selected, for example, with weekly clock, turn
switch or key card switch.
1) Select INPUT => BIN IN.
INPUT
BIN IN
SELECT
UP
DOWN
J1
J2
J3
NTC10k / BIN IN
2) Set the jumpers as shown beside
to determine the input signal.