Sterlco Micro Series Water Temperature Control Unit - Manual (Page 37)

3200 Series
ACS 3216 Operators Manual 37
11. Appendix A - Technical Specifications
Analogue Input
Sample rate 4Hz (250mS)
Calibration accuracy +0.25% of reading +1LSD
Resolution <5, 0.5µV when using a 5 second filter
Linearisation accuracy <0.1% of reading
Input filter Off to 59.9 secs
Zero offset User adjustable over the full display range
Thermocouple Types Refer to Sensor inputs and display ranges table
Cold junction compensation Automatic compensation typically >30 to 1 rejection of ambient
temperature change or external reference 0°C (32°F)
CJC Calibration accuracy <+1.0 o C at 25 o C ambient
RTD/PT100 Type 3-wire, Pt100 DIN43760
Bulb current 0.2mA
Lead compensation No error for 22 ohms in all 3 leads
Process Linear -10 to 80mV, 0 to 10V with external potential divider module
100K
Ω/800
Current transformer 50mAac into 10 ohm. This burden resistor is fitted inside the controller
Fusing Fit a 2A type T fuse in line with this controller
Digital input
Contact closure or logic 12V @ 5-
40mA
Contact open >500
Ω
Contact closed <200
Ω
Outputs
Relay Rating: 2-pin relay Min: 12V, 100mA dc Max: 2A, 264Vac resistive
Rating: change-over, alarm relay Min: 12V, 100mA dc Max: 2A, 264Vac resistive
Application Heating, cooling, alarms or valve position
Logic Rating On/High 12Vdc at 5 to 44mA
Application Off/Low <100mV <100
μA
Heating, cooling, alarms or valve position
Triac Current at maximum continuous
operation 0.75 A rms (resistive load)
Minimum and maximum operating
voltage 30V rms to 264V rms resistive
Snubber (22nF & 100
Ω) RC snubber must be fitted externally to prevent false triggering under
line transient conditions
DC analogue output Rating 0-20mA or 4-20mA software configurable
Maximum load resistance 500
Ω
Isolation Not isolated from the sensor input
Applications Heating, cooling or retranmission
Communications
Digital Transmission standard EIA-485 2wire or EIA-232 at 1200, 2400, 4800, 9600, 19,200 baud
Protocols Modbus®
SPI ®
Control functions
Control Modes PID or PI with overshoot inhibition, PD, PI, P only or On/Off or valve
position
Application Heating and cooling
Auto/manual Bumpless transfer
Setpoint rate limit Off to 9999 degrees or display units per minute
Tuning One-shot tune Automatic calculation of PID and overshoot inhibition parameters
Alarms Types Full scale high or low. Deviation high, low, or band
Modes Latching or non-latching. Normal or blocking action
Up to four process alarms can be combined onto a single output
Current Transformer Input