Functional description
For use as a monitoring and alarm system for face velocities in various applications,such as fume hoods, safety cabinets and other extraction units.
LED bar graph for displaying actual values of the face velocity in m/s, ft/min.
Acoustic and optical alarm (red LED) for insufficient face velocity.
Optical display (green LED) for sufficient face velocity (safe operation)
Yellow flashing LED as an optical alarm for the operating status “Sash > 50cm”.
RESET button to acknowledge the acoustic alarm
Button light ON/OFF (fume hood interior).
Button ON/OFF for direct actuation of a fan.
Plug for programming via the service module SVM100 or laptop.
Performance features
Microprocessor controlled monitoring system.
Low cost airflow monitor as a compact, built-in version.
External power adapter 100...230V AC/24V DC.
SVM100 or laptop computer software PC2500.
Monitoring of supply and exhaust air systems.
Integrated airflow sensor 0.2...1 m/s for measuring the face velocity.
Optical and optionally acoustic alarm for the operating status “Sash > 50cm”.
Suitable for all fume hood constructions.
Integrated, password-protected user interface for programming the face velocity alarm values (daytime and night-time operation) and the alarm delay time.
Technical data
General
|
Power adapter
|
110/230V AC/50/60Hz/+-
15%
|
Max. charging rate
|
100 mA
|
Max. power input
|
10 VA
|
Reactivation time
|
600ms
|
Operating temperature
|
0 OC to +55 OC
|
Humidity
|
max. 80 % relative, noncondensing
|
 
|
DIGITAL INPUTS
|
Number
|
2 inputs, 24V DC/2mA
|
Actuation
|
potential-free contact, maximum cable length < 3m
|
 
|
ANALOGUE OUTPUT
|
Exhaust air actual value
|
0(2)...10VDC, 10mA or 0(4)...20mA (Load resistor = 500 Ω)
|
 
|
INTEGRATED AIR FLOW SENSOR
|
Measurement system
|
dynamic, hot wire anemometric principle
|
Measuring range
|
0.2...1 m/s
|
Response time
|
<100 ms
|
Case
|
Protection type
|
IP 20
|
Material
|
plastic
|
Colour
|
white, RAL 9002
|
Dimensions (LxWxH)
|
(134 x 80 x 40) mm
|
Weight
|
approx. 1.0 kg
|
Terminals
|
screw terminal 0.75 mm2
|
 
|
RELAY OUTPUTS
|
Number
|
1 relay (K3) for light
|
Contact type
|
Front contact
|
Max. switching voltage
|
250V AC
|
Max. continous current
|
8A for fl uorescent lamp (max. 58 W
|
Number
|
2 relays (K1, K2)
|
Contact type
|
changeover/front contact
|
Max. switching voltage
|
250V AC
|
Max. continous current
|
3A
|
 
|
ANALOGUE INPUT
|
Setpoint
|
0(2)...5/10VDC, 1mA
|