10
The electronic pressure sensor and switch
PREMASREG
®
716x
is equipped with measuring functions for volume flow, differential pressure,
filter monitoring and liquid level detection based on pressure measurement in clean air. The devices are fitted with one switching output,
one continuous output and one backlit display for setting the switchpoint and displaying the ACTUAL values. The piezo-resistive measuring
element guarantees a high degree of reliability and accuracy.
This pressure sensor is used in clean room, medical and filter technology, in ventilation and air conditioning ducts, in spray booths, in large-scale
catering facilities, for monitoring filters, for level measurement or for triggering frequency converters. The medium measured is air (non-precipitating),
or other gaseous non-aggressive, non-combustible media. It has a manual zero point pushbutton and an offset potentiometer for final value correction.
Fine adjustment by the user is possible at any time. Parameter entry is menu-based and is easy to perform using three buttons with the help
of the display. A connection set ASD-06 (2m connection hose, two pressure nipples, screws) is included in the scope of supply.
TECHNICAL DATA
Power supply:
24 V AC ⁄ DC (± 10 %) and 15...36 V DC
Load resistance:
R
L
> 5 kOhm
Power consumption:
< 1.5 VA ⁄ 24 V DC, < 2.8 VA ⁄ 24 V AC
Measuring function:
Volume flow, differential pressure,
filter monitoring, fill level
(adjustable)
Measuring ranges:
10...100%
(adjustable)
Output signal:
0 -10 V
1 changeover contact (24 V), 1 A ohmic load
Electrical connection:
3-wire connection
Media temperature:
–20...+50 °C
Pressure connection:
4 ⁄ 6 x 11 mm (hoses Ø = 4 ⁄ 6 mm),
metal pressure connection nozzles
Type of pressure:
differential pressure
Medium:
clean air and
non-aggressive, non-combustible gases
Accuracy:
Type 7161
(1000 Pa): ± 5 Pa
Type 7165
(5000 Pa): ± 25 Pa
compared to the calibrated reference device
Sum of
Lihysteresis:
< ± 1 % of final value (pressure)
Temp. drift values:
± 0.1 % ⁄ °C
Above- ⁄ below-atmospheric
pressure:
max. ± 10000 Pa
Signal filtering:
switchable 1 s ⁄ 10 s
and small value suppression < 1 %
Signal hysteresis:
± 1 % or final value (pressure) 10 Pa ⁄ 50 Pa
Enclosure:
plastic, UV-stabilised, material polyamide, 30 % glass-globe reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016), enclosure cover for display is transparent!
Dimensions:
126 x 90 x 50 mm (Tyr 2)
Electrical connection:
0.14 - 1.5 mm², via plug-in screw terminal
Cable gland:
M 16 x 1.5; including strain relief
Air humidity:
< 95 % r. H., non-precipitating air
Protection class:
III (according to EN 60 730)
Protection type:
IP 65 (according to EN 60 529)
Standards:
CE conformity according to EMC Directive 2014 ⁄ 30 ⁄ EU,
according to EN 61326-1, according to EN 61326-2-3
Equipment:
Display with illumination,
three-line, cutout approx. 70 x 40 mm (W x H),
for displaying the
volume flow, differential pressure, contamination degree
or
level
and for setting the
switchpoint, K factor, measuring range limits
and other settings
K factor:
1 to 3000
(adjustable)
Units:
m³ ⁄ s, m³ ⁄ min, m³ ⁄ h, l ⁄ s, l ⁄ min, l ⁄ h, %, cm
(adjustable)
Max. value displayed:
999999
ACCESSORIES
ASD - 06
Connection set (nipple straight) – (included in the scope of delivery)
ASD - 07
Connection nipple (at 90° angle)
WS-03
Weather and sun protection, 200 x 180 x 150 mm, stainless steel
G
PREMASREG
®
716x
Rev. 2018 - V25 GB
