The Honeywell TK-OAV081, also cataloged as the OAV081 analog output module, operates as a dedicated hardware component for current and voltage signal generation within Honeywell process control systems.
Hardware Specifications
Parameter
Specification
Model
TK-OAV081
Brand
Honeywell
Origin
Honeywell process control platforms
Weight
0.5 kg (Shipping weight: 2 kg)
Dimensions
Not specified in provided data
Operating Temp
Standard industrial ambient range
Power Consumption
6.9 W max
Core Function
8-point analog output (current/voltage)
Voltage Output Range
±10.4 V
Current Output Range
0 to 21 mA
Resolution
320 µV per count (Voltage), 650 nA per count (Current)
Accuracy
Better than 0.05% at 25 deg C
Isolation
2550 VDC user-to-system, tested 1 s
Protection
Overvoltage protection, short-circuit current limiting
Update Rate
25 ms for all channels
Settling Time
<2 ms to 95% final value
Connection
TC-TBNH, 20-position terminal block
4-20 mA HART Loop Protocol
The TK-OAV081 supports integration with Honeywell environments utilizing 4-20 mA HART loop protocol, enabling simultaneous analog signal transmission and diagnostic communication. Channel-to-channel isolation ensures that voltage and current outputs remain independent, minimizing interference across the eight channels. Cold junction compensation (CJC) is applied for stability in varying ambient conditions.
Frequently Asked Questions
Q: Can the TK-OAV081 drive high-resistance loads? A: Yes, voltage outputs can drive >2000 Ω loads, while current outputs support up to 750 Ω.
Q: What is the module’s behavior under short-circuit conditions? A: Outputs are electronically limited to 21 mA or less, preventing damage during open or short circuit events.
Q: How does temperature drift affect accuracy? A: Typical offset drift is 50 µV/deg C (voltage) and 100 nA/deg C (current), with gain drift limited to 25 ppm/deg C (voltage) and 50 ppm/deg C (current).
Field Installation Guidelines
Mount the module securely in the designated chassis slot.
Connect TC-TBNH 20-position terminal block with proper torque to avoid loose contacts.
Ground shielding at a single point to reduce RFI susceptibility.
Verify load resistance compatibility before energizing outputs.
Maintain clearance for airflow to dissipate 6.9 W maximum heat.
