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The OMEGA™ MDS8PT is a 1/8 DIN size (96 x 48 mm) digital panel meter in a benchtop plastic enclosure featuring the Pt Series color-changing display.
The Pt Series meters feature 4 or 6 digit LED displays that can be programmed to change color between GREEN , AMBER, and RED at any set-point or alarm point. Other options include isolated programmable analog output, serial communications, Modbus® and Ethernet. The universal temperature and process instrument handles 10 common types of thermocouples, thermistors, multiple RTD’s, and several process (DC) voltage and current ranges.
Single-Channel Universal Inputs
Accuracy: See table for details
Resolution: 1°/0.1°; 10 µV process
Thermocouple @ 25°C (77°F): 0.05°C/°C (cold junction compensation)
Process: 50 ppm/°C
CMRR: 120 dB
A/D Conversion: 24-bit sigma delta
Digital Filter: Programmable
Display: 4- or 6-digit, 9-segment LED, 21 mm (0.83") GREEN, AMBER, and RED programmable colors for process variable, set point and temperature units
Input Types: Thermocouple, RTD, thermistor, analog voltage, analog current
Thermocouple Type (ITS 90): J, K, T, E, R, S, B, C, N, L
RTD Input (ITS 90): 100/500/1000? Pt sensor, 2-, 3- or 4-wire; 0.00385 or 0.00392 curve
Thermistor Input: 2252 ?, 5K ?, 10K ?
Voltage Input: -100 to 100 mV, -1 to 1 V, -10 to 10 Vdc
Current Input: 4 to 20 mA, 0 to 24 mA scalable
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
Set-Point Adjustment: -9999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -9999 to +9999
Network and Communications
Ethernet: Standards Compliance IEEE 802.3 10/100
Supported Protocols: TCP/IP, ARP
RS232/RS485: Selectable from menu; both ASCII and Modbus protocol selectable from menu; programmable 1200 to 115.2 Kb; complete programmable setup capability; program to transmit current display, alarm status, min/ max, actual measured input value and status
Connection: USB connector on front panel; optional alarm 1 and 2 (programmable)
Optional Alarm 1 and 2 (Programmable)
Type: Form “C” SPDT relays
Operation: High/low, above/below, limited output to 30 Vrms, 60 Vdc max, band, latch/unlatch, normally open/ normally closed and process/deviation; front panel configurations
Optional Analog Output (Programmable):
Isolated, retransmission 0 to 10 Vdc or 0 to 20 mA, 500 ? 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
Power: 90 to 240 Vac, 50 to 60 Hz
Note: Power cords for 120 Vac operation are available. See “Accessories.”