Copyright HK Instruments, Inc. 2017
www.hkinstrumentsinc.com
Installation version 2.0 2017
Continuing from the step 4-4, 4-7, or 4-19.
The gain feature is designed to allow modification
to the reported output, to match test and balance
measurements, if necessary. The number shown
is a multiplier. Increase the reported output by
increasing the gain number above 1.000. To
increase reported output by 5 %, adjust number
to 1.050. Decrease the reported output by
decreasing the gain number to less than 1.000.
To decrease the reported output by 5 %, adjust
number to 0.950.
Display
GAIN
1.000
1) Highlight submenu, the display will show
GAIN
and the number
1.000
will be blinking.
2) Cycle up or cycle down to increase or decrease the value of the
multiplier.
3) Confirm selection when the correct value is shown on the display.
4) Cycle down to the next step in configuring the device. For the
next configuration step in these installation instructions, go to
step 4-9.
STEP 4-8: GAIN
Continuing from the selection of gain multiplier.
1) Highlight submenu, the display will show
PRESS. UNIT
and
“WC
will be blinking.
2) Cycle up or cycle down to select the correct
measurement unit.
3) Confirm selection by tilting joystick 1 when the
correct option is shown on the display.
4) Cycle down to the next step in configuring
the device. For the next configuration step in
these installation instructions, go to step 4-10.
Display
Pressure unit
output options
Pa
kPa
mbar
psi
inWC
mmWC
None
Menu
STEP 4-9: PRESSURE UNIT
PRESS.UNIT
“WC
Continuing from the selection of the pressure
unit.
This device supports pressure output maximum
settings to improve resolution of the pressure
reading by limiting the range/span. Range/
span maximums are outlined in the table below.
Range/span minimums are 0 for all units.
Display
P OUTPUT MAX
4.000“WC
STEP 4-10: PRESSURE OUTPUT MAX
Pressure unit
DPT-Flow Series-4 model number
DPT-Flow-4
DPT-Flow-8
DPT-Flow-20
DPT-Flow-30
Pa
100–1,000
200–2,000
500–5,000
700–7,000
kPa
0.1–1.0
0.2–2.0
0.5–5.0
0.7–7.0
mbar
1–10
2.0–20
5.0–50
7.0–70
mmWC
10–100
20–200
50–500
70–700
inWC
0.4–4.0
0.8–8.0
2.0–20
2.5–30
Pressure output
Upper range/maximum settings
Example:
The DPT-Flow-4 has a capable range of 0–4.0 inWC.
If pressure readings are expected below 2.50 inWC, adjust the
pressure output maximum to 2.50 inWC to improve the resolution.
The range/span will be adjusted to 0.0–2.50 inWC. The DPT-Flow-4
can have the pressure output maximum set between 0.4–4.0 to
improve resolution.
1) Highlight submenu, the top line of the display will show
P
OUTPUT MAX
and the bottom line will change to a blinking
number equal to the maximum output.
2) Cycle up or cycle down by tilting joystick 2 or 3 respectively to
increase or decrease the value shown on the display.
3) Confirm selection when the correct value is shown on the
display.
4) Cycle down to the next step in configuring the device. For the
next configuration step in these installation instructions, go to
step 4-11.
Continuing from the selection of the pressure
output maximum.
1) Highlight submenu, the display will show
FLOW UNIT
and
m
3
/s
will be blinking.
2) Cycle up or cycle down to select the correct
flow unit.
3) Confirm selection by tilting joystick 1 when the
correct option is shown on the display.
4) Cycle down to the next step in configuring
the device. For the next configuration step in
these installation instructions, go to step 4-12.
Display
Flow units
Volume
m
3
/s
m
3
/h
CFM
l/s
Velocity
m/s
FPM
Menu
STEP 4-11: FLOW UNIT
FLOW UNIT
m3/s
Continuing from the selection of the duct height.
1) Highlight submenu, the display will show
PROBE QTY
and
1
will be blinking.
2) Cycle up or down by tilting joystick 2 or 3
respectively, to increase or decrease the
number of probes installed.
Display
PROBE QTY
1
3) Confirm selection when the correct value is shown on the display.
4) Cycle down to the next step in configuring the device. For the
next configuration step in these installation instructions, go to
step 4-8.
STEP 4-7: PROBE QUANTITY
