Copyright HK Instruments 2022
www.hkinstruments.fi
Installation version 8.0 2022
7) Select the response time: 1...20 s.
RESPONSETIME
4 s
SELECT
UP
DOWN
BAUD RATE
9600
SELECT
UP
DOWN
PARITY BIT
NONE
SELECT
UP
DOWN
5) Select the baud rate: 9600/19200/38400.
6) Select the parity bit: None/Even/Odd
9) Select the input type.
Passive temperature sensors: PT1000 / Ni1000 / Ni1000LG / NTC10k
Voltage input: VINPUT
Switch input: BIN IN
No input: NONE
INPUT
PT1000
SELECT
UP
DOWN
10) Select the setpoint of the controller (SP2 is only available with BIN IN switch
information):
CONFIGURATION
CONTINUED
NOTE! Always zero the device before use.
Supply voltage must be connected one hour before the zero point adjust-
ment is carried out. Access via Modbus or by push button.
1) Loose both tubes from the pressure and -.
2) Activate the device menu by pushing the the select button for 2
seconds.
3) Select
Zero sensor
by pressing the select button.
4) Wait until the LED turns off and then install tubes again for the
pressure inlets.
STEP 4: ZERO POINT ADJUSTMENT
SELECT
STEP 5: INPUT SIGNAL CONFIGURATION
Input signals can be read over Modbus via DPT-MOD RS485 interface.
Signals
Accuracy for measurement
Resolution
0...10 V
< 0,5 %
0,1 %
NTC10k
< 0,5 %
0,1 %
Pt1000
< 0,5 %
0,1 %
Ni1000/(-LG)
< 0,5 %
0,1 %
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.
Figure 3 - Input signal configuration
J1
J2
J3
IN
J1
J1
J1
J2
J2
J2
J3
J3
J3
NTC10k / BIN IN
Pt1000 / Ni1000/(-LG)
0...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 device includes an outdoor temperature compensation function that can
be enabled from the menu. When activated and an outdoor temperature sensor
is attached, the effective set point of the device will be modified to compensate
for the cold outdoor air. This may result in energy savings.
If temperature compensation is enabled, the device will linearly decrease the
user’s setpoint (REF FLOW/REF PRESSURE) by 0 % to TC DROP % from TC
START TE to TC STOP TE.
The device enforces a +5 °C difference between the start and stop tempera-
tures. The start temperature must be higher than the stop temperature.
1) Connect and configure an outdoor air temperature sensor. See step 5.
2) Enable temperature compensation.
4) Set the stopping temperature for compensation.
TC STOP TE
-15 °C
SELECT
UP
DOWN
TEMP COMP
ON
SELECT
UP
DOWN
TC START TE
5 °C
SELECT
UP
DOWN
3) Set the starting temperature for compensation.
5) Set the maximum drop percentage for compensation.
TC DROP %
25.0
SELECT
UP
DOWN
8) Select the Fixed Output (OFF / 0...100%), (see step 7 Fixed Output).
10.1) If the CONTROL UNIT is selected PRESSURE.
SELECT
UP
DOWN
REF PRES SP1
10 Pa
REF PRES SP2
100 Pa
10.2) If the CONTROL UNIT is selected FLOW.
SELECT
UP
DOWN
REF FLOW SP1
25.000 m3/s
REF FLOW SP2
35.000 m3/s
11) Select the TEMP COMP (OFF/ON), (see step 6, Temperature Compensation).
