Mounting And Wiring - Extech Instruments 48VTRR3 Instruction Manual

2.3 Output Specifications
Control Output Relay
Control Output DC Voltage (Pulsed) 24V DC (DC drive for SSR)
Analog Control Output (Current)
Alarm/Timer Types
Alarm Output Relay
Output Control Modes
Proportional Band 0.0 to 100.0% of Full Scale (can be Auto Tuned)
Anti-Reset Wind-Up Inhibits integral action outside of the Prop. Band

3. MOUNTING AND WIRING

3.1 Prepare a 1.77x1.77" ±0.02" (45x45mm
± 0.5mm) panel cutout The panel on
which the controller will be mounted
may be up to 0.4" (10mm) thick.
3.2 Remove the plastic mounting bracket.
Slide meter into panel through the
cutout.
3.3 Replace the mounting bracket and then
tighten the bracket screws. Do not
tighten the mounting screws
excessively.
3.4 Connect the power cord to the meter
but do not connect to power source
(refer to wiring diagram below).
3.5 Connect sensor input and control/alarm outputs (Fig.3)
3.6 Connect power to source.
AC Power: The AC supply terminals can handle 85 to 260VAC 50/60Hz without having
to be physically switched or specially configured.
Control relay: Terminals 8-9 are Normally Open (NO) and Terminals 8-10 are
Normally Closed (NC) when the controller is powered down or when the controller is
powered on and the relay is not active. Relays themselves DO NOT supply AC power.
AC Power must be wired to Relay terminals.
Alarm relay: Terminals 4-5 are Normally Open (NO) when controller is powered down
AND when it's powered-up in a non-alarm condition. Relays themselves DO NOT
supply AC power. AC Power must be wired to Relay terminals.
Inputs: Terminal 1 is negative and terminal 2 is positive for TC and Analog inputs. 3-
wire RTD use terminals 1-2-3 as shown. 2-wire and 4-wire RTD can also be used,
refer to Figure 3.
48VTR English 9/00
5 Amps @ 110V AC; SPDT (Resistive Load)
ON: 24V DC typical, 29V DC max.
OFF: 0.3V DC max
4-20mA DC; Load limit: 600Ω max.
High/Low Deviation/Absolute Alarms w/deadband
adjust plus Soak/Event Timers
3 Amps @ 110VAC; SPST (Resistive Load)
Integral Time 0 to 3000 secs. (can be Auto Tuned)
Derivative Time 0 to 3000 secs. (can be Auto Tuned)
Cycle Time 1 to 100 secs. (0 sec for 4-20mA output)
Manual Reset 0 to 100% of Prop. Band
Hysteresis 0.0 to 25.5% of Full Scale
Wiring Notes
Ver. 2.7
2