Grundfos DDA 7.5-16 User Manual

English (GB)
19
Calibration process - example for DDA 7.5-16
1. Fill a measuring beaker with dosing medium.
Recommended filling volumes V
1
:
– DDA 7.5-16: 0.3 l
– DDA 12-10: 0.5 l
– DDA 17-7: 1.0 l
– DDA 30-4: 1.5 l
TM04 1154 1110
2. Read off and note down the fill volume V
1
(e.g.
300 ml).
3. Place the suction hose in the measuring beaker.
4. Start the calibration process in the "Setup >
Calibration" menu.
5. The pump executes 200 dosing strokes and
displays the factory calibration value (e.g.
125 ml).
6. Remove the suction hose from the measuring
beaker and check the remaining volume V
2
(e.g.
170 ml).
7. From V
1
and V
2
, calculate the actual dosed
volume V
d
= V
1
- V
2
(e.g. 300 ml - 170 ml = 130 ml).
8. Set and apply V
d
in the calibration menu.
• The pump is calibrated.
V
2
= 170 ml
V
d
= V
1
- V
2
= 130 ml
V
1
= 300 ml
Calibration
Calibration
Strokes:
Calibrat. volume:
200
STOP
START
0.0000ml
Strokes:
Calibrat. volume:
0
125ml
Calibration
Calibrat. volume:
STOP
START
ml
Strokes:
200
130
Actual dosed volume V
d
STOP
START

Grundfos DDA 7.5-16 Specifications

General

Max Flow Rate	7.5 l/h
Max Pressure	16 bar
Protection Class	IP65
Operating Temperature	0°C to +45°C
Analogue Control	4-20 mA
Pulse Control	Yes
Level Control	Yes
Power Supply	100-240 V, 50/60 Hz
Material	Stainless Steel