Specifications

Control Mode

Microprocessor-based

Single input, dual output

Limit and alarm

Agency Approval

• FM approved, Class 3545, File J.I. 0D5A1.AF

Operator Interface

Sealed membrane front panel

Dual, 4-digit red or green displays

Advance, Increment, Decrement, and Reset keys

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 or ±0.1°C/°C rise in ambient maximum

Voltage stability: ±0.01% of span per percent of rated line voltage

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

Sensor break protection de-energizes limit output to protect system

°F or °C display, user selectable

Input Range

Specified temperature ranges represent the controller’s operational span.

• Thermocouple

 

 

 

 

 

 

Type B

32

to

3308°F

or

0

to

1820°C

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)

 

 

 

 

-328

to

1292°F

or

-200

to

700˚C

0.1°

-199.9

to

999.9°F

or

-199.9

to

700.0˚C

Output 1 Limit

• Electromechanical relay

Output 2 Alarm

Electromechanical relay

Switched dc

Solid state relay

Output Specifications

Electromechanical relayc, Form C, 5A @ 120/240V~

or 30Vë(dc) maximum, rated resistive load, without contact suppression.

Switched dc signal provides a non-isolated minimum turn on voltage of 3Vë(dc) into a minimum 500Ω load,

maximum on voltage not greater than 12Vë(dc) into an infinite load.

Solid state relayc, Form A, 0.5A @ 24V~ min. to

265V~ max. Opto-isolated, without contact suppression. Off state output impedance is 31MΩ .

Output Configurations

Output 1 selections: Limit Control

Limit output Output 2 selections:

Process with flashing alarm message

Process without alarm message

Alarm with separate high and low set points

Hysteresis: 1 to 9999°C/°F

Line Voltage/Power

100-240V~ (85-264V~); 50/60Hz ±5%

12-24Võ(ac/dc) (10-26õ[ac/dc]); 50/60Hz ±5%

Power consumption 7VA (12 to 24Võ[ac/dc]) 12VA (100-240V~)

Data retention upon power failure via non-volatile memory

Operating Environment

32 to 149°F/0 to 65°C at 115V~ line voltage power

32 to 140°F/0 to 60°C at 230V~ line voltage power

0 to 90% RH, non-condensing

Storage temperature: -40° to 185°F/-40° to 70°C

Terminals

• Size 6 universal head screw terminals accepts 20-14 gauge wire

Dimensions

 

 

Height

2.1"

53 mm

Width

2.1"

53 mm

Overall Depth

4.7"

119 mm

Behind panel depth

4.1"

104 mm

Weight

0.5 lb

0.2 kg

Ordering Information

9 4

- 1

- 0 0

Series 94

Microprocessor-based

116 DIN, single input, dual output

4-digit displays

NEMA 4X (IP65)b Option

A= Without NEMA 4X (IP65) Rating

B= With NEMA 4X (IP65) Rating

CE Option

A= Non CE Compliant

B= CE Compliant

Output 1 (Limit)

D= Electromechanical relay, Form C, 5A, without contact suppressionac

Output 2 (Alarm)

A= None

C= Switched dc output, non-isolated

D= Electromechanical relay, Form C, 5A,

without contact suppressionac

K = Solid state relay, Form A, 0.5A, without contact suppressionc

Line Voltage/Power

0= 100-240V~ (high voltage)

1= 12-24Võ(ac/dc) (low voltage)

Display Upper/Lower

RR = Red/Red RG = Red/Green GR = Green/Red GG = Green/Green

aElectromechanical relays are not recommended for PID control. They are warranted only for 100,000 contact closures.

bTo effect NEMA 4X (IP65) rating requires a minimum mounting panel thickness of 0.06 inch (1.5 mm) and surface finish not rougher than 0.000032 inch (0.000812 mm).

cSwitching inductive loads (relay coils, etc.) requires using an RC suppressor.

United States Sales Offices: Atlanta/Greenville, (770)908-9164Austin, (512)249-1900Charlotte/Columbia, (704)541-3896Chicago, (847)458-1500Cincinnati, (513)398-5500Cleveland, (330)467-1423Dallas, (972)422-4988Denver, (303)798-7778

Detroit, (248)651-0500Houston, (281)355-6015Indianapolis, (317)575-8932Kansas City, (913)897-3973Los Angeles, (714)935-2999Maryland/Virginia, (410)840-8034Minneapolis, (612)431-5700Nashville, (615)264-6148New England, (603)882-1330

New York/New Jersey/Philadelphia, (215)345-8130New York, Upstate, (716)438-0454Orlando, (407)351-0737Phoenix, (602)708-1995Pittsburgh, (412)323-0548Portland, (503)245-9037St. Louis, (314)878-4600Sacramento, (707)425-1155San Diego, (760)728-9188San Francisco, (408)980-9355Seattle, (425)222-4090Tampa/St. Petersburg, (813)926-3600Tulsa, (918)496-2826

Winston Salem/Raleigh, (336)766-9659Wisconsin, (414)723-5990

Asian Sales Offices: Australia, +61 (3) 9335-6449China, +86 (21) 6229-8917Japan, +81 (03) 5403-4688Korea, +82 (02) 563-5777

Singapore, +65 777-5488Taiwan, +886 (0) 7-261-8397 European Sales Offices: France, +33 (01) 3073-2425Germany, +49 (0) 7253-9400-0

Italy, +39 (02) 458-8841United Kingdom, +44 (0) 115-964-0777 Latin American Sales Office: Mexico, +52 (42) 17-6235

For other product information, call Watlow’s FAX REPLY: United States +1 (800) 367-0430Outside the United States +1 (732) 885-6344

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Watlow Electric Series 94 warranty Specifications

Series 94 specifications

Watlow Electric, a renowned leader in the thermal control industry, offers a versatile and advanced solution with its Series 94 controllers. These controllers are designed for a wide range of industrial applications, providing precise temperature control that is crucial for maintaining operational efficiency and product quality.

One of the primary features of the Series 94 is its user-friendly interface. The controllers are equipped with a large, bright display that allows operators to easily view and adjust process parameters. The intuitive menu-driven setup makes it accessible for both experienced technicians and those new to thermal management systems. The front panel features fully programmable keys, enabling quick access to frequently used functions, thereby enhancing productivity.

In terms of technology, the Series 94 utilizes state-of-the-art control algorithms that optimize temperature regulation while minimizing overshoot and instability. This precision is achieved through PID (Proportional-Integral-Derivative) control, which continuously adjusts the heating output based on real-time temperature feedback. This results in greater energy efficiency and a reduced carbon footprint for industrial processes.

Another significant characteristic of the Series 94 is its versatility. It offers multiple control modes, including ON/OFF, PID, and advanced control options for applications requiring superior performance. Additionally, it supports a variety of thermocouple and RTD input types, making it compatible with a wide range of temperature sensing devices. This flexibility allows users to implement the Series 94 in diverse applications, from ovens and furnaces to plastics processing and food production.

The durability of the Series 94 is another notable aspect. Built to withstand the rigors of industrial environments, it features robust housing and components capable of functioning optimally in demanding conditions. This reliability, combined with its superior temperature control capabilities, ensures that production processes run smoothly and efficiently.

Furthermore, the Series 94 incorporates advanced communication protocols, including Modbus and Ethernet, allowing for easy integration into existing industrial automation systems. This connectivity enables remote monitoring and control, enhancing operational oversight and responsiveness.

In conclusively, the Watlow Electric Series 94 stands out in the market for its advanced features, user-friendly design, versatile applications, and durable construction. These characteristics make it a trusted solution for industries seeking reliable and precise thermal management systems. Whether for process heating or temperature control, the Series 94 delivers performance that meets the demands of modern industrial applications.