MKS-05 is microprocessor temperature indicator
(measurement and data aquisition box) with 5 inputs which are suitable
for Pt1000 or Pt100 RTDs and most common thermocouple sensors. One fixed
air temperature probe (sensor) and 4 wood core temperture probes
(sensors) can be connected to MKS-05.
This is
not a stand alone unit but can be delivered separatelly depending on the
aplication and user preference. Complete set delivered for wood and
pallet sterilization process according to ISPM 15 phytosanitary standard
consists of: measurement box MKS-05, 1 air temperature probe, 4 wood
core temperature probes with Pt1000
sensors, connection box S-05 (if required), RS486 adapter used for PC connection, CD with
software installation and cables.
There are 2 ways to connect
device depending on the distance between chamber and MKS-05. Length of
the cables for temperature probes is most crutial. In case short cables
can be used (for short distances), temperature probes are connected
directly to MKS-05. If that is not the case and distance is not short,
or it is unconvenient to use direct connection, then connection box S-05
is placed inside the chamber and temperature probes are connected to
MKS-05 via this connection box.
Both connection layouts are shown
on pictures bellow:
Direct connection of temperature probes to MKS-05 |
Connection of temperature probes to MKS-05 via
connection box S-05 |
Most common usage of this unit
is in chambers for heat treatment ie
sterilization of wood and pallets. Together with custom PC
application "Wood sterilization", MKS-05 is used for
sterilization process verification according to International Standard
for Phytosanitary Measures ISPM 15 standard as defined
by Food and Agriculture Organisation - FAO.
Sterilization process is monitored on PC monitor, and after succesfull
completion, it is printed in the form of computer generated form which
is used as proof that sterilization process passed succesfully.
When appropriate application on PC computer is used, MKS-05 can be used
as suitable device for survailance and data aquisition in large chamber
and warehouse systems.
Warranty for MKS-05 indicator is 5 years. Technical data are given in
following tables:
|
Main characteristics
|
|
Power suply
|
180 ÷ 260Vac (50 ÷ 60Hz); 10 ÷ 30 Vdc/ac; 1VA max
|
|
Number of inputs
|
5
|
|
Displays
|
Single, 3-digit x 7 segment LED, 13mm, red;
1-digit x 7 segment LED, 9mm,
red
|
| Operating conditions |
T: 0 ÷ 50°C; RH: 5 ÷ 90%
|
| Storage |
T: -40 ÷ 85°C; RH: 5 ÷ 90%
|
| Dimensions (WxHxD)(mm) |
195 x 170 x 96 (mm)
|
|
Mounting
|
On the wall
|
|
Weight
|
650g
|
|
Input
|
|
Thermocouple
|
Type
|
J, K, L, R, S, B
|
|
Cold junction temperature compenzation (CJC)
|
Internal compensation;
External compensation (0°C)
|
|
RTD
|
Type
|
Pt100, 2 or 3-wired; Pt1000; KTY10
|
|
Cable resistance compensation with 3-wired connection
|
max 10Ω per wire
|
|
Measurement
|
Linearization error
|
< 0.1%
|
|
Internal compensation error for thermocouples
|
< 1 °C for ambient temperature in range 0 ÷ 50°C
|
|
Total measurement error
|
± 1 digit or 0.5% of measurement range
|
|
Measurement filter
|
1 ÷ 128
|
|
Measurement frequency
|
8 inputs/sec
|
|
Communication
|
|
Digital
|
Communication standard
|
EIA 485
|
|
Protocol
|
EI - BISYNC
|
|
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