Rage switching output, Preset point output

TIC-LF502A

independently)

In the case of DO1

Pulse rate: 3.6 to 3,600,000 pulses/h

Pulse width:Settable within the range of 0.3 to 500ms

In the case of DO2

Pulse rate: 3.6 to 360,000 pulses/h

Pulse width: Settable within the range of 4 to 500ms

•Rage switching output

One Digital Output (DO) is used

･Single direction, 2-range switching signal ･Forward/reverse direction switching signal

Two Digital Outputs (DO) are used

･Single direction, 4-range switching signals ･Forward/reverse 2-range switching signals

•High/low limit alarm output

An alarm is output when flow rate goes above or below the set-point value

Setting range : -10 to 110% of the settable maximum range

High limit 2 points, low limit 2 points can be set At the time of alarm output, Normally Open or Normally Closed contact can be selected

• Preset point output

Contact ON when totalizer count exceeds the set value

Setting range: 1 to 99999999 count

• Converter error alarm

An alarm is output when an operation error is detected by self-diagnosis.

At the time of alarm output, Normally Open or Normally Closed contact can be selected

Communications signal:

A digital communications (HART protocol) signal is superimposed on 4 to 20 mA dc analog output signal.

Load resistance: 240 Ω to 1 kΩ

Load capacitance: 0.25 µF or less

Load inductance: 4mH or less

(For maximum cable length, about 2km is a guideline length when CVV-S 1.25mm2 is used under standard installation condition.)

Note: HART (Highway Addressable Remote Trans-ducer) is a communications protocol for industrial sensors recommended by the HCF (HART Commu-nication Foundation).

Output display:

16-character×2-line dot-matrix LCD

(With back light).

2 units can be selected from the flowing units: flow velocity, instantaneous flow rate, total flow (forward/reverse/difference flow), total count, %, custom unit.

Parameter settings—Parameters can be set as follows

•IR Switches: Various parameters can be set without opening the converter housing using 4 infrared switches (password can be set)

•Zero adjustment: Zero point adjustment can be started by pressing the switch in the converter.

•Digital communication: The AF 900 hand-held terminal is needed to set parameters.

•Damping: 0.5 to 60 s

(Selectable in one second increments) “Field re-verification”Mag-Prover– Toshiba’s

Zero span calibration tool allows unit to be re-calibrated and verified using an internal software program. (For more information contact Toshiba International Corp.)

Conditions when power fails:

Parameter setting values are stored in non-volatile memory and the values will be restored when the power returns to normal condition The output and display will stay as follows when power fails..

Current output: 0 mA

Digital output : OFF (contact open)

LCD display : No display

Surge protection: Surge protectors are installed in the power supply, excitation circuit, current signal output and digital I/O circuit.

Terminal block structure:21-pole, screw connection type (M4 screw)

Housing: Aluminum alloy

Coating: Acrylic resin-baked coating, pearl-gray colored

Cable connection ports :

A cable gland is provided for each port.

OD of cable φ11 to 13 mm

Material Nylon 66

G(PF) 1/2 male screws.

Structure: IP67 and NEMA 4X Watertight

Vibration resistance:

No resonance to the following levels of vibration:

•10 to 55Hz with amplitude of 0.07mm,

•Vibration of 30Hz with 29.4 m/s2 in 4h in each direction will not cause any defect to unit.

Note: Avoid using the flowmeter in an environment with constant vibration.

Dimension and Weights:

See Figure 5