Sterlco M2B - Electrical Specifications

31
Electrical Specifications
Temperature Inputs
T/C’s J, K, E, (Remote Sensing Only)
Input Type Range
J: -100 to 1600
o
F (-73 to 871
o
C)
K: -200 to 2500
o
F (-129 to 1371
o
C)
E: -100 to 1800
o
F (-73 to 982
o
C)
Impedance 3 Meg ohms min.
RTD’s Pt1000 din 0.00385
Ω
ΩΩ
Ω
/
Ω
ΩΩ
Ω
/
o
C Range -328 to 1607
o
F (-200 to 875
o
C)
Source current 200
µ
A
Flow Input
Min. sig. 100 mV peak to peak
Impedance 100k min.
20 to 250 Hz.
128 GPM (485 lpm) max.
Temperature/Flow input resolution
Low gain 2.1 uV
Signal Inputs (0.5mA @ 5Vdc Sense)
Phase Relay
Safety Thermo
Low Pressure
Remote Set point Current: 0-20mA across 600OHM
Max., isolated to 500Vac
Outputs
Relay: SPST, 1A @ 250 Vac resistive; 1A @ 250 Vac inductive
Pilot Duty Rating: 125VA
Hi/Lo Heat, Cool, Alarm, Purge, Pump, Vent (adjustable off to 5 min.)
SSR: 1A@250Vac, isolated to 1500 Vac
Hi/Lo Heat, Cool
Current: 0 to 20 mA across 600 ohms max., isolated to 500 Vac
Heat, Cool, Process Output
Communications: RS232, RS485, Half and Full Duplex
RS 485SPI Half Duplex Only
Accuracy Temperature
±
0.25% of span
±
least significant digit
Temperature Stability
4uV /
o
C typical, 8 uV /
o
C maximum
Common Mode Rejection
140 db minimum at 60 Hz.
Approvals
Ambient Temperature Range
14 to 131
o
F(-10 to 55
o
C)
0 to 90% up to 40
o
C non-condensing,
0 to 50% at 55
o
C non-condensing