i-therm Px-428 User's Operating Manual

USER'S OPERATING MANUAL FOR PID DIGITAL TEMPERATURE CONTROLLER
SPECIFICATIONS : -
1. DISPLAY TYPE
Model no.
Px-428
Display height (PV)
0.36"
Display height (SV)
0.24"
STATUS LED'S
2. INPUT
Sensor input : TC:J,K,R,S,N,T,B, RTD: Pt-100 &
Range : Refer below table.
Sensor Type
Range
o
Fe-k(J) T/C
0 ~ 760 C
Cr-AL(K) T/C
-99 ~ 1300 C
(R) T/C
0 ~ 1700 C
(S) T/C
0 ~ 1700 C
TC - N -99 ~ 1300 C
TC - T -99 ~ 400 C
TC - B 0 ~ 1800 C
Pt-100(RTD)
-100 ~ 450 C
Pt-100(RTD 0.1)
-99.9 ~ 450.0 C
Sampling Time
Resolution
CJC for TC
LWC for Pt-100
Digital Filter
3. RELAY OUTPUT
Contact type
Contact Rating
Life expectancy
Isolation
4. SSR DRIVE OUTPUT
Drive Capacity
Isolation
5. FUNCTION
Output 1
Output 2
Control Action
Control Mode
Compliance
6. ENVIRONMENTAL
Operating Range
Storage Humidity
7. POWER SUPPLY
Supply Voltage
Consumption
8. PHYSICAL
Housing
(Models: Px 428 / 728 )
Px-428
(48x48)
: Dual 4- Digit 7 Segment LED
4 Digit Bright White (PV)
4 Digit Luminous Green (SV)
Px-728
0.70"
0.50"
: 1 : Main Control Output
2 : Alarm Status
S : Soak Timer
T : Tuning Status (Only Px-X28)
Pt-100(RTD 0.1)
i
Accuracy
Resolution
o
}
1 C
o o
1 C
o o
1 C
o o
1 C
o o
1 C
o o
1 C
o o
1 C
o o
1 C
o o
0.1 C ± 0.3 C
: 125 msec.
: 1°C/0.1°C(Only for RTD)
: Built in automatic
: Built in upto 18E max.
: 1 to 10 Sec.
: N/O, CM, N/C
: 5A @ 250VAC or 30 VDC
: > 5,00,000 operations
: Inherent
: 12V @ 30mA.
: Non-Isolated.
: Main Control output
: Programmable
1) Auxiliary control
2) Alarm
3) Soak timer
4) Alarm + Soak timer
: ON-OFF/PID (Select)
: Heat, Cool, Heat/Cool (Select)
: ----
: 0 ~50°C, 5~90% Rh
: 95% Rh (Non-condensing)
: 90~270VAC, 50/60Hz.
: 4W Maximum.
: ABS Plastic
SAFETY INSTRUCTION :
This controller is meant for temperature control
applications. It is important to read the manual prior to
installing or commissioning of controller. All safety
related instruction appearing in this manual must be
followed to ensure safety of the operating personnel as
well as the instrument.
GENERAL
v The controller must be configured correctly for intended
operation. Incorrect configuration could result in
damage to the equipment or the process under control
or it may lead personnel injury.
v The controller is generally part of control panel and in
such a case the terminals should not remain accessible
to the user after installation.
MECHANICAL
v The Controller in its installed state must not come in
close proximity to any corrosive/combustible gases,
caustic vapours, oils, steam or any other process by-
o
± 1 C
products.
v The Controller in its installed state should not be
exposed to carbon dust, salt air, direct sunlight or
radiant heat.
v Ambient temperature and relative humidity surrounding
o the controller must not exceed the maximum specified
limit for proper operation of the controller.
v The controller in its installed state must be protected
against excessive electrostatic or electromagnetic
interferences. Ventilation holes provided on the chassis
of the instrument are meant for thermal dissipation
hence should not be obstructed in the panel.
ELECTRICAL
v The controller must be wired as per wiring diagram & it
must comply with local electrical regulation.
v Care must be taken not to connect AC supplies to low
voltage sensor input.
v Circuit breaker or mains s/w with fuse (275V/1A) must
be installed between power supply and supply terminals
to protect the controller from any possible damage due
to high voltage surges of extended duration.
v Circuit breaker and appropriate fuses must be used for
driving high voltage loads to protect the controller from
any possible damage due to short circuit on loads.
v To minimize pickup of electrical noise, the wiring for low
voltage DC and sensor input must be routed away from
high current power cables. Where it is impractical to do
this, use shielded ground at both ends.
v The controller should not be wired to a 3-Phase supply
with unearthed star connection. Under fault condition
such supply could rise above 264 VAC which will damage
the controller.
v The Electrical noise generated by switching inductive
loads might create momentary Fluctuation in display,
alarm latch up, data loss or permanent damage to the
instrument. To reduce this use snubber circuit across
the load.
v It is essential to install a over Temp. Protection device
to avoid any failure of heating system. Apart from
spoiling the product, this could damage the process
being controlled.
1
Px-728
(72x72)
OIM Px-X28 V2.0 Page 1 of 9