Roth AQUASTOP II Manual de usuario
Operations manual
AQUASTOP
®
II
Laboratory
cooling water
monitoring unit
Carl Roth GmbH + Co. KG
Schoemperlenstr. 3-5,
D-75185 Karlsruhe
++ 9/ 721 5606-0 · ++ 9/ 721 5606-1 9
© 01/2015 All rights reserved
Operations manual AQUASTOP
®
II
2
Dear customer,
thank you for having chosen this AQUASTOP
®
II cooling
water monitor. This high quality device has been produced
in our ISO 9001-certified factory and was shipped to you
after a thourough quality test.
Unpack Check the device for eventual shipping damage.
Don't connect damaged equipment !
Claim the damage with your shipping agent.
Read Please read carefully this operating manual be-
fore bringing the device into service !
onnect Wiring the device should be done by your quali-
fied electrician following the instructions given in
this manual.
Warranty period is 1 year and includes all malfunctions
clearly caused by material, production or design
failures. Repair or replacement in this case are
free of charge, you only pay the shipping cost to
our factory. No further claims or requirements
can be accepted, especially for consequential
losses or damages.
Service We help you quickly and at resonable costs.
Just send us the device with repair order and
precise description of the malfunction.
Operations manual AQUASTOP
®
II
Carl Roth GmbH + Co. KG 3
Carefull packaging is essential for a safe shipment !
Minor repairs are done immediately without formal offer. In
any other case, we contact you as soon as possible to
determine the next steps.
To facilitate your orientation in this manual, you find the
following symbols :
Safety advice
General information
Wiring- and installing advice
Operations manual AQUASTOP
®
II
Carl Roth GmbH + Co. KG
Table of content
hapter Page
1 Features 5
2 Safety advice 6
3 Specification 8
Operating mode description 10
5 Installation and wiring 1
5.1 Installation
5.2 Connecting to the mains
5.3 Wiring of accessories
6 Operation : 17
6.1 Operating elements and keys
6.2 Start-up procedure 19
7 Configuration : 20
7.1 Temperature limit value
7.2 Cooling water flow limit value
7.3 Temperature range 21
7. Cooling water flow range 22
7.5 Calibration of the flow meter
8 Error messages 2
8.1 Temperature sensor breakage
8.2 Flow meter error
9 Serial data interface 25
10 CE-conformity certificate 26
Operations manual AQUASTOP
®
II
Carl Roth GmbH + Co. KG 5
1. Features
Coolig water monitoring unit for use in laboratories,
switches off any electrical load up to 230V AC / 3,5kW in
case of
- Undershooting of the chosen minimum cooling
water flow :
Solenoid valve in the cooling water admission
closes, connected electrical load is disconnec-
ted with all poles
- Overshooting of the chosen maximum tempera-
ture limit value :
Cooling water temperature is measured by
means of a sensor integrated in the flow meter,
alternatively, a separated Pt100 sensor placed
elsewhere in the process can be monitored.
Solenoid valve in the cooling water admission
remains open, connected electrical load is dis-
connected with all poles
- Acoustical pre-warning before the final switching
action
- Freely programmable alarm limit values
- Data interface RS232 for easy registering of all
relevant process data
Operations manual AQUASTOP
®
II
6
2 Safety advice
1. Please read this advice carefully.
2. Keep this operations manual for use near the
unit.
3. This is an electral device driven with high
voltage, please respect all relevant safety
regulations.
Mains voltage and every voltage greater than 2
volts is dangerous !
. Connect to a power source following the
identification plate on the device.
5. Avoid contamination of the interior with debris,
liquids or sprays.
Risk of short-circuit, fire or electric shock !
6. Don‘t place the device on hot surfaces or near
radiation sources of hot parts.
7. Keep the power connection cable clear of hot
parts or sharp edges.
Operations manual AQUASTOP
®
II
Carl Roth GmbH + Co. KG 7
8. Disconnect the power cable immediately, if
- it was damaged,
- liquid or parts penetrated the device,
- the device was damaged by falling down or
other mechanical impacts,
- you have the suspicion of any malfunction.
9. The operator must be thoroughly instructed by
a qualified person for the work to be carried out.
10. Intervention at the device must only be carried
out by qualified staff members.
For repair, the device should be send back to
our factory. Attempted self-repair causes
immediate termination of the warranty period !
If spare parts are required, only parts recom-
mended by the supplier must be used. The use
of other parts may cause damage and/or
hazard for operation personnel.
11. Please respect further recommandations and
warnings described in this operations manual.
.
Operations manual AQUASTOP
®
II
8
3. Specification
Mains voltage :
230V ± 10%, 8...63Hz
Electrical connection :
Power cord with protective earth
Nominal rating / nominal current :
3,5kW / 15A
Fuses :
16A MT (load)
0,5A MT (solenoid valve)
0,2A MT (controller)
Solenoid valve :
230V, 50Hz, 120mA
ooling water flow range :
2 ... 99l/h
Flow measurement principle :
inductive
Temperature sensor:
NTC (integrated in the flow meter) or external
Pt100 sensor
Temperature range (internal sensor) :
0 ... 80°C
Temperature range (external Pt100 sensor) :
0 ... 250°C
Operations manual AQUASTOP
®
II
Carl Roth GmbH + Co. KG 9
Alarm output :
Floating contact, 1x ON, max. 230V/1A
Display :
7 segment LED-display in 2 lines, shows simulta-
neously waterflow and –temperature, can be switched
over to other parameters for control or programming
purpose
Signalisation of operational state and alarms:
2x LED jellow : heating / solenoid valve action
2x LED red : temperature alarm / flow alarm
Acoustical alarm :
Piezo tweeter 90db
Operation :
keys
Insulation voltage :
000 V
Housing:
PVC RAL3000 / RAL9002
Dimensions:
205 x 175 x 78mm (W x D x H)
Weight :
1,3kg
Operations manual AQUASTOP
®
II
10
4. Operating mode description
This unit monitors continuously the cooling water
flow and –temperature of any critical laboratory
equipment operating without surveillance and helps
preventing damages caused by unsufficiant cooling
action. It can easily be mounted on already existing
installations.
Cooling water admission is controlled by an solenoid
valve fitted onto a normal water tap. The combined
flow meter / temperature sensor is fitted in the coo-
ling water line downstream of the equipment to be
monitored. In case the critical process temperature
to be monitored must be measured elsewhere in the
installation, an external Pt100 sensor can be con-
nected. This sensor needs then to be placed direct-
ly on the spot to be surveyed. Connection of an
external temperature sensor automatically discon-
nects the integrated temperature sensor in the flow-
meter.
The heating of the installation or equipment, e.g. a
bath or heating plate, can directly be fed from the
socket on the backside of the AQUASTOP® II. This
protects the installation against damages caused by
lack of cooling water, e.g. by a leaky water hose or
tube, and also in case of other unacceptable tempe-
rature increase, inside the cooling water or else-
where in the process.
A floating contact (230V/1A) is available for external
alarms. AQUASTOP® II is further equipped with a
RS232 serial data interface which allows easy docu-
mentation of measured values on a connected PC.
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1
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