Watlow Series V4T Manual de usuario descargar pdf (Pagina 23)

Watlow Series V4 23

Specifications (1968)

Control Mode

• Microprocessor-based, user selectable control

modes

• Single process input, dual output

• 2.5Hz input sampling rate

• 1Hz display update rate

• Ramp to set point: 0 to 9999 degrees or units per

hour

• Heat and cool auto-tune operator interface

Operator Interface

• Sealed membrane front panel

• Dual, four-digit red or green displays

• ‰Advance, ¿Up-arrow, ¯Down-arrow, and

ˆInfinity keys

• User selectable screen display

Accuracy

• Calibration accuracy and sensor conformity: ±0.1%

of span, ±1°C @ 77°F ± 5°F (25°C ± 3°C) ambient

and rated line voltage

• Accuracy span: 1000°F (540°C) minimum

• Temperature stability: ±0.2°F/°F (±0.2°C/°C) rise in

ambient maximum

Sensors/Inputs

• Thermocouple, grounded or ungrounded sensors

• RTD 2- or 3-wire, platinum, 100Ω @ 0°C calibration

to DIN curve (0.00385Ω/Ω/°C) or JIS curve

(0.003916Ω/Ω/°C); user selectable

• Process, 4-20mA @ 5Ω, or 0-5VÎ (dc) @ 10kΩ

input impedance

• Sensor break protection de-energizes control output

to protect system or selectable bumpless transfer to

manual operation

• °F or °C or process units display, user selectable

Input Range

Specified temperature ranges represent the

controller’s operational span.

• Thermocouple

Type J 32 to 1382°F or 0 to 750°C

Type K -328 to 2282°F or -200 to 1250°C

Type N 32 to 2282°F or 0 to 1250°C

Type S 32 to 2642°F or 0 to 1450°C

Type T -328 to 662°F or -200 to 350°C

• RTD Resolution (DIN or JIS)

1° -328 to 1292°F or -200 to 700°C

0.1° -199.9 to 999.9°F or -128.8 to 537.7°C

• Process

4-20mA @ 5Ω or -999 to 9999 units

0-5V (dc) @ 10kΩ or -999 to 9999 units

Output 1 (Heating or Cooling)

• Electromechanical relay

. Form C, rated at 8A @

125V~ (ac) or 5A @ 240V~ (ac) or 5A @ 30VÎ (dc),

max. at resistive load, without contact suppression.

Max. switching current is 10A, max. switching power

is 2500VA, and max. switching voltage is 277V~

(ac) or 110VÎ (dc).

• Switched dc signal provides a non-isolated minimum

turn on voltage of 3VÎ (dc) into a minimum 500Ω

load; maximum on voltage not greater than 12VÎ

(dc) into an infinite load.

• 4-20mA reverse or direct acting, non-isolated 0 to

800Ω load.

• Solid-state relay

, Form A, 0.5A @ 24V~ (ac) min.,

264V~ (ac) max., opto-isolated burst fire switched,

without contact suppression. Off-state output

impedance is 31MΩ.

Output 2 (Heat, Cool or Alarm)

• Electromechanical relay

. Form C, rated at 8A @

125V~ (ac) or 5A @ 240V~ (ac) or 5A @ 30VÎ (dc),

max. at resistive load, without contact suppression.

Max. switching current is 10A, max. switching power

is 2500VA, and max. switching voltage is 277V~

(ac) or 110VÎ (dc).

• Switched dc signal provides a non-isolated minimum

turn on voltage of 3VÎ (dc) into a minimum 500Ω

load; maximum on voltage not greater than 12VÎ

(dc) into an infinite load.

• Solid-state relay

, Form A, 0.5A @ 24V~ (ac) min.,

264V~ (ac) max., opto-isolated burst fire switched,

without contact suppression. Off-state output

impedance is 31MΩ.

• Alarm output can be latching or non-latching, and

process or deviation with separate high and low

values. Alarm silencing (inhibit) on power up (for

deviation alarms only).

Output Configurations

• Output 1

User selectable as: on/off: P, PI, PD, PID, heat or cool

action

• Adjustable switching differential: 1 to 99°F (1 to

55°C)

• Proportional band: 0 (off) or 1 to 999°F (0 to 555°C)

or 0.0 to 999.9 units

Integral: 0 (off) or 0.1 to 99.9 minutes per repeat

Reset: 0 (off) or 0.01 to 9.99 repeats per minute

Rate/derivative: 0 (off) or 0.01 to 9.99 minutes

Cycle time: 0.1 to 999.9 seconds

• Output 2

User selectable as: Control with action opposite that of

Output 1 (heating or cooling)

• Process or deviation alarm with flashing alarm

message

• Process or deviation alarm without alarm message

• Alarm with separate high and low set points

• Hysteresis: 1 to 9999° or units switching differential

Line Voltage/Power

• 100-240V~ (ac), -15%, +10%; (85-264V~ [ac])

50/60Hz, ±5%

• 14-24Vı (ac/dc), +10%, -15%; (12-26Vı [ac/dc])

50/60Hz, ±5%

• Fused internally (factory replaceable only) Slo-Blo®

type (time-lag):

1A, 250V for high voltage versions

2A, 250V for low voltage versions

• Maximum power consumption: 12VA (100 to 240V~

[ac]), 7VA (12 to 24Vı [ac/dc])

• Data retention upon power failure via non-volatile

memory

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