Copyright HK Instruments 2019
www.hkinstruments.fi
Installation version 8.0 2019
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.
SELECTING THE MEASUREMENT RANGE
CONTINUED
Chart 2 - Inlet A
Range 7
Range 8
Range 1
Range 2
Range 3
Range 4
Range 5
Range 6
Jumper J1
Jumper J2
Jumper J3
(Grey colour indicates that a jumper is installed. Reference Figur
e 3 and Schematics for jumper installation.)
3) For inlet B: Install jumpers on J4, J5 and J6 as required.
a. Using the range number from 1c above, find the corresponding
range number in Chart 3.
b. Install jumpers on J4, J5 and J6 on device, as shown under the range
number in Chart 3. (Grey colour indicates that a jumper is installed.
Reference figure 3 for jumper installation.)
Chart 3 - Inlet B
Range 7
Range 8
Range 1
Range 2
Range 3
Range 4
Range 5
Range 6
Jumper J4
Jumper J5
Jumper J6
(Grey colour indicates that a jumper is installed. Reference Figur
e 3 and Schematics for jumper installation.)
STEP 6: SELECTING THE RESPONSE TIME
The response time affects how fast the transmitter reacts to changes in
the system. The response time is the time the device takes to reach 63
% of the measured value. To smooth out unstable pressure fluctuations
in airflow applications, select a longer response time.
Example:
Selected response time: 4.0 seconds
Result: Output signal achieves a new value in 20 seconds (Response
time*5)
To change response time, install or remove jumper on J7.
(see Figure 3)
1) Install jumper on J7 for 4.0 second response time.
2) Remove jumper from J7 for 0.8 second response time.
NOTE: This will change the response time for both differential pressure
measurements.
WARRANTY POLICY
STEP 7: ZEROING THE DEVICE
NOTE! Always zero the device before use.
Manual Pushbutton zero point calibration:
NOTE: Supply voltage must be connected at least one hour prior to
zero point adjustment.
a) Disconnect both pressure tubes from the pressure ports l
and –.
b) Push down the zero button until the LED light (red) turns on and
the display reads “zeroing” (display option only). (see Figure 4)
c) The zeroing of the device will proceed automatically. Zeroing is
complete when the LED turns off, and the display reads 0 (display
option only).
ZEROING THE DEVICE
CONTINUED
d) Reinstall the pressure tubes ensuring that the High pressure tube
is connected to the port l, and the Low pressure tube is
connected to the port labeled −.
Figure 4
a) Disconnect both pressure tubes from the pressure ports l
and –.
b) Push down the zero button (joystick) until the LED light (red)
turns on and the display reads “zeroing” (display option only). (see
Figure 6)
c) The zeroing of the device will proceed automatically. Zeroing is
complete when the LED turns off, and the display reads 0 (display
option only).
d) Reinstall the pressure tubes, ensuring the High pressure tube is
connected to the port l, and the Low pressure tube is
connected to the port labeled −.
Press down button
LED turns ON
Display reads “Zeroing”
LED
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.
