Extech Instruments 48VTR User Manual page 6

RTD Input Specifications
RTD type
RTD range
Break protection
Lead wire effect
Repeatability
Analog (Linear) Input Specifications
Current Input
Voltage Input
Display range
Repeatability
Relay and DC Trigger Control Output Specifications
Relay output
DC trigger (pulse) output
Control actions
Control types
Automatic tuning
Manual Tuning
ALARM Output Specifications
Alarm relay output
Alarm modes
ANALOG Output Specifications
Analog output
Load limit
Programming
Platinum 100Ω (DIN and JIS)
o o
-392 to 932 F (-200 to 500 C)
Up- and down-scale
o
0.015 / Ohm
o
0.2 C
4 to 20mA DC (2.7Ω input impedance)
1 to 5V DC (>10MΩ input impedance)
-1999 to 9999 digits
Within 1 digit
SPDT, dry contact, form C relay contact can switch up to 5
Amps @ 110V AC or 24VDC (Note: For Resistive Loads)
24V DC (DC drive for external SSR)
ON: 24V DC typical, 29V DC max; OFF: 0.3V DC max
Indirect acting (heating) and direct acting (cooling)
ON/OFF control with Hysteresis (deadband)
Time proportioning control (for relay or pulsed DC output)
Standard proportional output (analog output)
Push-button activation. Automatically tunes the controller's
proportional band and integral/derivative times.
Proportional Band (Pb): 0.0 to 100.0% of Full Scale
Integral time or 'Reset' (Ti): 0 to 3000 seconds
(includes anti-reset wind-up)
Derivative time or 'Rate' (Td): 0 to 3000 seconds
Cycle Time: 1 to 100 seconds (set to '0' for 4-20mA output)
Hysteresis: 0.0 to 25.5% of Full Scale
SPST, dry contact relay can switch up to 3 Amps @ 110VAC;
(Note: For Resistive Loads only)
Deviation and Absolute Alarms with deadband adjustment.
Alarm relay can also be used with the controller's Soak/Event
Timer functions.
4-20mA DC
600Ω max.
Set Cycle Time (Ct) to '0' to enable the analog output
6 Model 48VTR - Version 5.0 – January 2006