Copyright HK Instruments 2017
www.hkinstruments.fi
Installation version 5.0 2017
The seller is obligated to provide a warranty of five years for the deliv
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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
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pairing the defective product or by delivering free of charge to the buy
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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
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proper storage, incorrect care or reconstruction, or changes and instal
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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
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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
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change costs. Under no circumstance is the seller liable for damages
compensation for indirect damage.
The zero point should be adjusted via manual zeroing, one hour after
installation and at least every 12 months during normal operations.
Manual zeroing:
1) Note: supply voltage must be connected at least one hour prior to
zero point adjustment.
2) Disconnect both pressure tubes from the pressure ports l
and -.
3) Push the zero button at least 4 seconds until the LED light (red)
shows one long blink. (see Figure 4)
4) The zeroing of the device will proceed automatically. Zeroing is
complete when the LED turns off.
5) 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 labled -.
STEP 6: ZEROING THE DEVICE
A. For R8 model:
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: 8.0 seconds
Result: Output signal achieves a new value in 20 seconds (Response
time*5)
Use the zero button to change response time:
1) Push down and release the button quickly. LED emits 2 blinks.
Device is set with 8.0 second response time.
2) Push down and release the button quickly again. LED emits 3 short
blinks. Device is set with 0.8 second response time.
B. For R2 and R4 models
Use the jumper J1 to select the response time. Install jumper to J1 to
set 0.8 s response time. Remove the jumper J1 to set 4 s response time.
(See chart 7)
STEP 5: SELECTING THE RESPONSE TIME
0.8 s
8 s
Jumper J1
MEASUREMENT RANGE SELECTION
MEASUREMENT RANGE SELECTION
(Grey colour indicates that a jumper is installed)
WARRANTY POLICY
a) Disconnect both pressure tubes from the pressure ports labeled
+ 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
LED
Figure 4
Chart 7
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.
RECYCLING/DISPOSAL
