Benchtop Digital
Thermometers
Single- and 10-Channel Models with
Embedded Ethernet Connectivity Option
Shown smaller
than actual size.
Transition junction and quick disconnect thermocouples sold
separately. TTSS-18U-6 shown. Visit omega.com/jtin
MDSi8 Series
U Totally Programmable
Color Displays, Standard
U Optional
Embedded Internet
U Portable, Rugged Metal
Benchtop Enclosure
with Tilt Handle
U Single- and
10-Channel Models
U Built Around OMEGA’s
New iSeries Meters
U High Quality
U 5-Year Warranty
U High Accuracy ±0.5°C
(±0.9°F), 0.03% Reading
U User-Friendly,
Simple to Configure
U Universal Inputs:
Thermocouple, RTD,
Process Voltage/
Current, Strain on
Single-Channel Models
Process Voltage
Process Current 0 to 20 mA (4 to 20 mA) 0.03% rdg
Iron–Constantan -210 to 760°C/-346 to 1400°F 0.4°C/0.7°F
-270 to -160°C/-160 to 1372°C 1.0°C/0.4°C
-270 to -190°C/-190 to 400°C 1.0°C/0.4°C
-270 to -220°C/-220 to 1000°C 1.0°C/0.4°C
-50 to 40°C/40 to 1768°C 1.0°C/0.5°C
-50 to 100°C/100 to 1768°C 1.0°C/0.5°C
100 to 640°C/640 to 1820°C 1.0°C/0.5°C
5%Re–W/26%Re-W 0 to 2320°C/32 to 4208°F 0.4°C/0.7°F
-250 to -100°C/-100 to 1300°C 1.0°C/0.4°C
J DIN -200 to 900°C/-328 to 1652°F 0.4°C/0.7°F
Pt, 0.00385, 100, 500, 1000 Ω -200 to 900°C/-328 to 1652°F 0.4°C/0.7°F
Pt, 0.00392, 100, 500, 1000 Ω -200 to 850°C/-328 to 1562°F 0.4°C/0.7°F
CHROMEGA
Copper–Constantan
CHROMEGA
30%Rh–Pt/6%Rh-Pt
L
Miniature quick disconnect thermocouples
sold separately. GKMQSS-125U-6 shown.
Visit omega.com/gjmqss
U Optional Alarm Relays
or Analog Output
Input Type Range Accuracy
®
–ALOMEGA
®
–Constantan
Pt/13%Rh-Pt
Pt/10%Rh-Pt
Nicrosil–Nisil
M-107
0 to 100 mV, 0 to 1 V, 0 to 10 Vdc
®
-454 to -256°F/-256 to 2502°F 1.8°F/0.7°F
-454 to -310°F/-310 to 752°F 1.8°F/0.7°F
-454 to -364°F/-364 to 1832°F 1.8°F/0.7°F
-58 to 104°F/104 to 3214°F 1.8°F/0.9°F
-58 to 212°F/212 to 3214°F 1.8°F/0.9°F
212 to 1184°F/1184 to 3308°F 1.8°F/0.9°F
-418 to -148°F/-148 to 2372°F 1.8°F/0.7°F
0.03% rdg
The OMEGA® MDSi8 is a 1⁄8 DIN
size (96 x 48 mm) digital panel
meter in a rugged benchtop metal
enclosure featuring the big iSeries
color-changing display. The digits
are twice the size of typical 1⁄8 DIN
panel meters. The iSeries meters
feature the only LED displays that
can be programmed to change
color between GREEN, AMBER,
and RED at any setpoint or alarm
point. Other options include isolated
programmable analog output, serial
communications, MODBUS and
Ethernet.
The universal temperature and
process instrument (model “i”)
handles 10 common types of
thermocouples, multiple RTD’s, and
several rocess (DC) voltage and
current ranges.
at any
setpoint
Totally Programmable
Color Displays
The OMEGA® i/8, i/16, and i/32 are
the first complete series of
1
⁄32 DIN process control instruments
with totally programmable color
displays. The display can be
programmed
to change
color at any
setpoint or
alarm point.
1
⁄8, 1⁄16 and
10-channel thermocouple model MDSSi8-TC-C4EI-AL, shown (top) with
Ethernet/RS232 and alarm relay option. Single-channel universal model
MDSi8-C4EI, shown (bottom) with Ethernet/RS232 option.
Specifications
Single-Channel Universal and 10-Channel Dedicated
Temperature and Process Inputs
Accuracy: ±0.5°C (±0.9°F) temp; 0.03% reading process
Resolution: 1°/0.1°; 10 µV process
Temperature Stability:
RTD: 0.04°C/°C
Thermocouple @ 25°C (77°F): 0.05°C/°C (cold junction compensation)
Process: 50 ppm/°C
NMRR: 60 dB
CMRR: 120 dB
A/D Conversion: Dual slope
Reading Rate: 3 samples per second
Digital Filter: Programmable
Display: 4-digit, 9-segment LED, 10.2 mm (0.40")
i32, i16, i16D, i8DV: 21 mm (0.83")
i8: 10.2 mm (0.40") and 21 mm (0.83"), i8DH—GREEN, AMBER, and RED
programmable colors for process variable, setpoint and temperatureunits
Input Types: Thermocouple, RTD, analog voltage, analog current
Thermocouple Lead Resistance: 100 Ω max
Thermocouple Type (ITS 90): J, K, T, E, R, S, B, C, N, L
RTD Input (ITS 68): 100/500/1000 Ω Pt sensor, 2-, 3- or 4-wire; 0.00385 or
0.00392 curve
Voltage Input: 0 to 100 mV, 0 to 1 V, 0 to 10 Vdc
Input Impedance: 10 MΩ for 100 mV, 1 MΩ for 1 or 10 Vdc
Current Input: 0 to 20 mA (5 Ω load)
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 s for 99.9%
Decimal Selection: None, 0.1 for temperature; none, 0.1, 0.01 or 0.001 for process
Setpoint Adjustment: -1999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -1999 to +9999
Network and Communications
Ethernet: Standards Compliance IEEE 802.3 10Base-T
Supported Protocols: TCP/IP, ARP, HTTPGET
RS232/RS422/RS485: Selectable from menu; both ASCII and MODBUS protocol
selectable from menu; programmable 300 to 19.2 Kb; complete programmable
setup capability; program to transmit current display, alarm status, min/max, actual
measured input value and status
RS485: Addressable from 0 to 199
Connection: DB-9 connector on rear panel; optional alarm 1 and 2 (programmable)
M
M-108
Optional Alarm 1 and 2
9-segment display
(Programmable)
Type: Form “C” SPDT relays,
3A @ 120/240 Vac
Operation: High/low, above/below,
band, latch/unlatch, normally open/
normally closed and process/deviation;
front panel configurations
Optional Analog Output
(Programmable):
Non-isolated, retransmission 0 to 10 Vdc
or 0 to 20 mA, 500 Ω max (output 1 only).
Accuracy is ± 1% of FS when following
conditions are satisfied.
1) Input is not scaled below 1%
of input FS
2) Analog output is not scaled below
3% of output FS
General
Power: 90 to 240 Vac, 50 to 60 Hz
Note: Each unit includes one power cord
(model number POWER CORD-MOLDED)
rated for 120 Vac. Additional power cords for
230 Vac operation are available.
See “Accessories.”
9-segment LED
The iSeries displays feature unique
9-segment LED characters, which
greatly improves alphanumeric
representations. The 7-segment
LED characters found on most
instruments are adequate for
presenting
numbers, but
not letters.
Words are
easier to read
with the unique
9-segment
LED characters
on the iSeries,
which makes
operating and
programming simpler and easier.
7-segment display
9-segment display
To Order Visit omega.com/mdsi8_mdssi8 for Pricing and Details
Model No. Description
MDSi8 1-channel benchtop thermometer, universal input
(thermocouple, RTD, PV)
MDSi8A 1-channel benchtop thermometer, universal input
(thermocouple, RTD, PV) with analog output
MDSi8S 1-channel benchtop strain meter
MDSSi8-TC 10-channel benchtop thermometer, dedicated
thermocouple input
MDSSi8A-TC 10-channel benchtop thermometer, dedicated
thermocouple input with analog output
MDSSi8-RTD 10-channel benchtop thermometer,dedicated 100 Ω
RTD input
MDSSi8A-RTD 10-channel benchtop thermometer, dedicated 100 Ω
RTD input with analog output
MDSSi8-PV 10-channel benchtop thermometer, dedicated voltage/
current input
MDSSi8A-PV 10-channel benchtop thermometer, dedicated voltage/
current input with analog output
Options
-EI Ethernet with embedded web server*
-C24 Isolated RS232 and RS485/422
-C4EI Ethernet with embedded web server and RS484/422
-AL Dual alarm relays (form “C” SPDT, 3 A @ 120/240 Vac)
-500/100 Configured for 500 or 1000 Ω RTD’s (10-channel
models only)
Ordering Examples
MDSi8-C24 1-channel universal input benchtop thermometer with
RS232/485 communication
MDSi8A-AL 1-channel universal input benchtop thermometer with
analog output and alarm relays
MDSi8-EI-AL 1-channel universal input benchtop thermometer with
ethernet and alarm relays
MDSSi8-TC-C24 10-channel thermocouple input benchtop thermometer
with RS232/485 communication
MDSSi8-RTD-AL 10-channel RTD input benchtop thermometer with
alarm relays
MDSSi8-PV-EI-AL 10-channel voltage/current input benchtop
thermometer with ethernet and alarm relays
Accessories Description
POWER CORD-DM Power cord with connector for Denmark
POWER CORD-E-10A Power cord with connector for Continental
Europe
POWER CORD-IT Power cord with connector for Italy or Ireland
POWER CORD-SE Power cord with stripped ends (no
connection), all countries 250 Vac max
POWER CORD-UK Power cord with connector for United Kingdom
POWER CORD- Power cord with connector for North MOLDED
America (USA, Mexico, Canada), standard
120 Vac
Comes with complete operator’s manual.
*Ethernet options are not available for the MDSi8A or MDSSi8A meters. For 10-channel
models, communication port can only access input currently selected by 10-point selector
switch on front of unit.
M-109
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