Watlow MINICHEF 2000 Shelf Timer Application User Manual download pdf (Page 10)

8 ■ Watlow MINICHEF 2000 Specifications

Specifications (1032)

Control Mode

• Single and dual heat channels, PID or on/off.

• Microprocessor-based, programmable, reverse-acting

control outputs.

• User-selectable embedded application software defines

operation of display, keys, inputs, outputs, timing action.

• One-step auto-tuning, WatHelp diagnostics, WatCurve

temperature compensation.

Agency

• CE approved:

89/336/EEC Electromagnetic Compatibility Directive

-EN 50081-1: Emissions

-EN 50082-1: Immunity

73/23/EEC Low-Voltage Directive

-EN 60730-1 and EN 60730-2-9: Safety

• NSF Listed, Criteria 2.

• AGA: UL tested to AGA standard Z21.23, UL File

#E43684.

• UL and C-UL recognized, UL 197, 873, 991 and CSA

standard C22.2-24, File # E43684.

Operator Interface

• Membrane overlay, contamination and water resistant,

(supplied by customer).

• LED display, 5-digit, 0.56 in high, red.

• Displays times, temperatures, user prompts and

diagnostic codes.

• User-selectable time and temperature display formats.

• Temperature display formats

—˚F or ˚C.

• Time display formats—H:MM:SS, HH:MM, or MMM:SS.

• 8 discrete indicator LEDs, red.

• 6 tactile feedback keys.

• Menu-driven operation and manual modes available.

• WatHelp diagnostics.

• Real-time clock option displays time of day.

Accuracy

• Calibration accuracy and sensor conformity

: ± 2.0°F

for Type J thermocouple and RTD, ± 0.35% of span for

Type K and E thermocouples, ±1 LSD, 77°F ± 5°F

ambient and rated line voltage of ±10%.

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

• Temperature stability: ± 0.15˚F/˚F (0.15˚C/˚C) change

in ambient typical.

Sensors/Inputs

• Contact inputs, TTL compatible with internal pull-up

resistor, two available.

• Thermocouple,

software selectable Type J, K or E,

32 to 1200°F. (Dual-channel applications require at least

one ungrounded thermocouple).

•RTD,

2- or 3-wire, platinum, 100, 500, 1000Ω, at 0°C,

software selectable DIN or JIS curves, 0 to 1200°F

(3-wire will function as 2-wire).

• Input A/D resolution: 15 bit.

Output Options

• Solid-state relay, 0.4A, with or without contact suppres-

sion.

• Switched dc signal, 4.5V to 5.25V, 30mA maximum

output, minimum load resistance > 150Ω, non-isolated.

Audible Output Options

• Switched dc signal, 4.5V to 5.25V, 30mA maximum

output, minimum load resistance > 150Ω, non-isolated.

• Internal audible alarm, 75dB at 10 cm.

Connectors

• Sensor Input Terminal Strip

: RIACON, 6-position,

quick-connect.

• Power Supply & Input/Output Terminal

: AMP,

15-position, quick-connect.

Power/Line Voltage

• 20.4 to 26.4VÅ (ac), 47 to 63Hz.

• 15VA maximum.

• For CE applications, input power must be limited to

15W external to the control.

• Program retention upon power failure via non-volatile

memory.

• Battery/real-time clock option: 6-year lithium battery,

provides power backup upon power failure, operation

resumption after power recovery, ability to display time

of day.

Operating Environment

• 32 to 176°F (0 to 80°C), 0 to 90% RH, non-condensing.

Storage Temperature

• -40 to 176°F (-40 to 80°C).

Mechanical

• Case: polycarbonate Lexan with adjustable mounting

collar (vertical or horizontal orientation), designed for

mounting on 16-, 18-, 20- and 22-gauge panels.

• Internal panel mounting requires a specified panel

cutout and four #6-32 studs or equivalent.

• Overall width x height x depth: horizontal - 4.13 in x

3.25 in x 2.00 in; vertical - 3.25 in x 4.13 in x 2.00 in

(Assumes mating connectors are attached. Does not

include wire bundle space requirements.).

• Vibration: 2g, 10 to 150Hz, applied in any one of three

axes.

• Weight: 6.50oz maximum.

Program Storage

• All non-embedded user and factory programs are

stored in non-volatile memory. Can be changed by

reprogramming.

Sample/Update Rates

• 1 input: 4Hz.

• 2 inputs: 4Hz.

• PID: 1Hz.

• Control outputs: 100Hz.

• Display: 10Hz.

The MINICHEF 2000 controller is to be used in systems with an

external high temperature limiting device.

Thermocouple lead resistance of 200Ω causes < 1°C error. RTD, 22

gauge wire will not contribute more than 0.086°F error/ft.

Dual channel applications require either two thermocouple sen-

sors or two identical RTD sensor types.

For mating connector information, see Ordering Information

Accessory section.

Certified for thermometer accuracy (oven and hot food holding

applications from 32°F to 60°F) when used with RTD or type J thermo

couple probes.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15

Comments to this Manuals

No comments

Watlow MINICHEF 2000 Shelf Timer Application User Manual Page 10

Comments to this Manuals

Related products and manuals for Sensors Watlow MINICHEF 2000 Shelf Timer Application