WNIP May June 19.3 Digital

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The model 1620A DewK thermohygrometer
has revolutionised
environmental monitoring for
calibration labs, offering Ethernet
and wireless connections and
upgraded LogWare III software.
Accuracy
Two types of sensors are
available from Hart. The highaccuracy
sensor (“H” model) reads
temperature to ± 0.125 °C over a
calibrated range of 16 °C to 24 °C.
Relative humidity readings are to
± 1.5 %RH from 20%RH to 70 %RH.
The standard-accuracy sensor
19.3
Thermo-hygrometer - Enviromental Power management solutions offer and reliability control an
Tank insulation system
(“S” model) reads temperature
to ± 0.25 °C over its calibrated
range of 15 °C to 35 °C. Relative
humidity readings are to ± 2
%RH from20%RH to 70 %RH.
All DewK sensors come with
NVLAP accredited certificates of
calibration for both temperature
and humidity, complete with data
and NIST traceability.
Ethernet and wireless
capability
The DewK features built-in
Ethernet RJ45 jack and multiple
DewKs can be monitored from
the same screen using the new
LogWare III client-server software.
Ethernet also allows for the
possibility for remote connectivity
over the internet, so that critical
conditions can be monitored from
a remote location and data can be
sent to a printer through the RS-
232 interface in real time.
Math and statistical functions
In addition to temperature
and humidity, the DewK calculates
dew point, heat index, and rates of
change for both temperature and
humidity. Min, max, and a variety of
other statistics are also calculated
and can be shown on-screen. Daily
All power solutions systems
summary statistics, including store
encompass up to 400,000
the latest datetechnology
and
min, max, and maximum rates of time-stamped for energy data efficiency, points. quality
(i.e.
change are stored for the most Two power years’ worth supply, of optimum data for both safety
recent sixty days.
measurements and enhanced from aesthetics.
two sensors
Calibrated sensors
from readings The environmentally taken at ten minute friendly,
The DewK has inputs for intervals.) dry type cast resin transformers,
two sensors, each measuring Alarms transfer and electrical battery backup power between
both temperature and relative two Alarm different settings voltage are easily systems
humidity, so that the DewK made at based the same on temperature, frequency, the with
can monitor two locations rate low of change environmental in temperature, impact.
simultaneously. Both sensors RH, These the rate HV/LV of change transformers in RH, and offer
can be run via extension cables to
remote locations up to 100 feet
instrument significant fault savings conditions.
electricity
Alarms costs can and be both can visual reduce (flashing electricity
away, or one sensor can be directly display) consumption and audible by (beeping). up to 20%
mounted to the top of the DewK. during Likewise, off-peak alarm activity.
settings can
Each
Uninterruptible sensor
power is
supply calibrated
(UPS)
be set up and events triggered
for units
both temperature and in LogWare III. The DewK is also
humidity
P at Fluke Calibration. The equipped with a 0 to 12 volt alarm
ower solutions ensure
calibration constants assigned output that can trigger a process
protection of electrical
to the sensors reside in a memory control system.
equipment and continuity of
chip located inside the sensor A backup battery shuts down
service during planned and
housing, so sensors may be the DewK’s display but maintains
unexpected power outages.
used interchangeably
These modular between
systems
measurements for up to 16 hours
different
include DewKs.
certified low emission
in the event of a power failure.
(CLE) Sensors
cast may also
resin be
transformers,
assigned Variable display
a unique
busbar identifier
trunkings, (up
enclosures
to 16 Finally, the DewK can be
characters) for power to facilitate switchgear record and
configured to display in up to 16
keeping controlgear by matching assemblies, the sensor as
different setups that can be stored,
identifier well with as uninterruptible the collected data. power
recalled and easily modified.
Memory supply (UPS) units. An important
advantage The DewK has of selecting an impressive Legrand
Legrand certified low emission (CLE)
memory components capacity for – efficient, enough safe to and
sales@comtest.co.za
cast resin transformers
flexible power distribution, is the
The absence of flammable
immediate integration between
insulation liquids, the use of
the company’s busbar trunking
self-extinguishing
materials
systems, cast resin transformers
exempt of toxic gas emissions,
panels. and XL³ These cabinets.
seams provide a reduced The ThermaSeam noise levels system and is low
weatherproof barrier that extend unique electromagnetic
in that scaffolding emissions,
not
the entire height of the tank and normally ensure required enhanced for installation. environmental
serve as the attachment point for protection A work cage in all attached installations.
to a
securing the panels to the tank. nozzle or Standard
painter’s lug permits distribution
the
Stainless CONTROL steel VALVE retaining TEST
clips installer transformers to travel around have rated the tank power
captured in STABILITY the TEST
machine-formed with between the seamer. 100 and 3 150 kVA,
Measuring the stability of the Control Valve by comparing a stabile seam are secured signal and air supply pressure to steel against the output cables signal and valve primary Storage rated tanks voltage three meters up to 36 or
kV
input
position.
wrapped around
ACCURACY TEST
the perimeter of greater and in secondary diameter rated that voltage require up
Measured in user defined steps, changing the input signal and the tank.
measuring
insulation to 433 V.
are ideal candidates for
the valve position.
BENCH TEST
External Measuring banding, the actual responds a of traditional
the valve by automatically
a ThermaSeam Special system. transformers have
ramping input signal from 0 to 100% and back, while
weak spot monitoring in the displacement tank of the insulation
valve
rated power up to 20 000 kVA,
and pressure in the actuator.
process, is RESPONDS eliminated. TEST
Dedicated primary rated voltage up to 36
Performed to measure valve’s ability to
insulation XL³ cabinets follow clips a block and on shaped enclosures
the input signal.
side of the kVA and secondary rated voltage
tank are also RESPONDS not TIME
required.
sales@thermon.co.za
Performed to measure the valve traveltime
to fully open and close the valve.
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SEAT LEAKAGE TEST
The valve seat leakage is measured and classified according to the FCI 70-2.
A.T. TECHNICAL SERVICES & SUPPLIES
HONEYWELL
The ThermaSeam tank
insulation system is an
improved method used to provide
temperature conservation and
condensate prevention. Tanks
benefitting from this system
typically contain petroleums,
chemicals, asphalt, anhydrous
ammonia, beverages and chilled
water (for HVAC storage).
ThermaSeam tank insulation
systems are:
• Extremely durable
• Maintenance-free
• Aesthetically pleasing
• Cost-effective
The strength and durability
of the system is derived from
machine-formed, double-locking
standing seams between adjacent
Online Valve Testing
Systems
www.ventil.nl
3
➢ 012 345 1005
admin@atts.co.za
Laser Stroke Sensor
➢ 011 695 8000
www.honeywellprocess.com