• EEPROM memory.
  • up to a distance of 4000 ft
  • Zero Cutoff %


The Thermal Instrument 9200B special purpose flow computer accepts analog input from the thermal mass flow meter and provides linearization of the sensor and scaling to the Flow Rate and Total indicators. A variety of Pulse Outputs, Analog Outputs, Control Inputs, Relay Alarms and RS-232 Outputs are provided standard. RS-485 Modbus RTU is also an ordering option.

9200B Signal Processor Features:
Type: 2 lines of 20 characters, Backlit LCD
Character Size: 0.3″ nominal
Isolated 4-20 mA Analog Output:
Type: Isolated Current Sourcing
Resolution:12 bit
Update Rate: 1 update/sec minimum
Maximum Load: 1000 ohms (at nominal line voltage)
Averaging: User entry of damping constant to cause a smooth control action.
Isolated Totalizer Pulse Output:
Pulse Output Form: Open Collector
Maximum On Current: 25 mA
Maximum Off Voltage: 30 VDC
Saturation Voltage: 1.0 VDC
Maximum Off Current: 0.1 mA
Pulse Duration: 10 mSec or 100 mSec
Pulse Output Buffer: 256
Fault Protection
Reverse polarity: Shunt Diode
Relay Outputs:
The relay outputs are menu assignable to (Individually for each relay) Low Rate Alarm, Hi Rate Alarm, Prewarn Alarm, Preset Alarm or General purpose warning (security).
Number of relays: 4
Contact Style: Form C contacts
Contact Ratings: 5 amp, 240 VAC or 30 VDC
Auxiliary DC Supply with High Current Capability:
24 VDC 420 mA (600 mA Peak)
Power Input:
110 VAC Power: 85-127 Vrms, 50/60 Hz (11.0 VA)
220 VAC Power: 170-276 Vrms, 50/60 Hz (11.0 VA)
Operating Temperature: 0ºC to +50ºC
Storage Temperature: -40ºC to +85ºC
Humidity: 0-95% Non-condensing
Materials: U.L. approved