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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.

Содержание DPT-Ctrl-MOD Series

Страница 1: ...ed pressure Model 2500 Pressure 125 Pa 1 2 Pa Pressure 125 Pa 1 1 Pa Model 7000 Pressure 125 Pa 1 5 2 Pa Pressure 125 Pa 1 5 1 Pa Accuracy specifications include general accuracy linearity hysteresis long term stability and repetition error Overpressure Proof pressure 25 kPa Burst pressure 30 kPa Zero point calibration Manual pushbutton or Modbus Response time 1 0 20 s selectable via menu or Modbu...

Страница 2: ...o a fan with pressure measurement taps Select Common probe when using DPT Ctrl MOD with a common measurement probe that follows the formula q k P i e FloXact MANUFACTURER Common probe SELECT UP DOWN Common probe Flakt Woods SELECT UP DOWN STEP 2 WIRING DIAGRAMS For CE compliance a properly grounded shielding cable is required 1 Unscrew the strain relief and route the cable s 2 Connect the wires as...

Страница 3: ... 10 V D VALUE 1 00 SELECT UP DOWN 15 Push the select button to exit menu SELECT EXIT MENU SELECT 12 Select proportional band according to your application specifications P VALUE 206 SELECT UP DOWN 13 Select integral gain according to your application specifications I VALUE 4 00 SELECT UP DOWN 14 Select derivation time according to your application specifications STEP 6 TEMPERATURE COMPENSATION The...

Страница 4: ...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 9...

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