Watlow Electric Series 97 Specifications, Controller, Operator Interface, Thermocouple, Retransmit

Specifications

Controller

•Microprocessor-based

•Universal input 1, auxiliary input 2, 4 outputs

•Input sample period; Single input 10Hz (100 msec), dual input 5Hz (200 msec) digital filter adjustable

•Display update; 2Hz (500 msec), time filter adjustable

•Input/Output/Communication isolation

•Displayed in °C, °F

Operator Interface

•Dual 4-digit LED displays: upper 10.2 mm (0.4 in.), lower 6.2 mm (0.244 in.)

•Advance, Up Arrow, Down Arrow, Reset tactile keys

Standard Conditions For Specifications

•Ambient temperature 77°F (25°C) ±3°C, rated line voltage, 50 to 60Hz, 0 to 90 percent RH non-condensing,

15 minute warm-up

Universal Input 1

Thermocouple

•Type J, K, T, N, C (W5), E, PTII, D (W3), B, R, S thermocouple types

•>20MΩ input impedance

•Maximum 20Ω source resistance

•30mA open detection bias

RTD

•2- or 3-wire platinum, 100Ω

•JIS and DIN curves

•Whole or tenth degree indication

•150µA nominal RTD excitation current

Input 2

Event Input

•Contact or voltage

•20KΩ input impedance

•Voltage input: event high state 3 to 36VÎ(dc), event low state 0 to 2VÎ(dc)

•Resistance/contact input: event high state > 23kΩ , event low state 0 to 2kΩ

Output Types

Open Collector/Switched DC

•Open collector configuration: Maximum voltage 42VÎ(dc)

Maximum current 200mA Maximum “on” resistance 1.Ω1 Maximum offstate leakage current 100µA

•Switched dc configuration:

Switched dc supply voltage 22 to 28VÎ(dc) dc supply current limited to 30mA

Solid State Relay

•Optically isolated

•Zero cross switched

•Without contact suppression

•Minimum load current 0.5mA rms

Solid State Relay (cont.)

•Maximum current 0.5A rms at 20 to 280VÅ(ac)

•Maximum offstate leakage current 10µA rms

•For resistive loads only, must use RC suppression for inductive loads

Electromechanical Relay

•Form C contact configuration

•Minimum load current 10mA @ 5VÎ(dc)

•Rated resistive and inductive loads: 2A @ 250VÅ(ac) or 30VÎ(dc) maximum

•Electrical life 100,000 cycles at rated current

•For resistive loads only, must use RC suppression for inductive loads

Retransmit

•Range selectable: 0-20mA, 4-20mA, 0-5VÎ(dc), 1-5VÎ(dc), 0-10VÎ(dc)

•0 to 10VÎ(dc) voltage output into a 1,000Ω minimum load resistance

•0 to 20mA current output into an 800Ω maximum load resistance

•Resolution:

Vdc ranges = 2.5mV nominal mA ranges = 5µA nominal

•Calibration accuracy: Vdc ranges = ±15mV mA ranges = ±30µA

•Temperature stability 100ppm/°C

Communications

•EIA/TIA-485, EIA/TIA-232

•Opto-isolated

•ModbusTM RTU protocol

•1200, 2400, 4800, 9600, 19200 baud rates

•32 maximum units can be connected (With additional

485 repeater hardware, up to 247 units may be connected)

Accuracy
• Input ranges
Type J:	0 to	750°C	or	32 to	1382°F
Type K:	-200 to 1250°C		or	-328 to	2282°F
Type T:	-200 to	350°C	or	-328 to	662°F
Type N:	0 to 1250°C		or	32 to 2282°F
Type E:	-200 to	900°C	or	-328 to	1470°F
Type C(W5):	0 to 2315°C		or	32 to 4200°F
Type D(W3):	0 to 2315°C		or	32 to 4200°F
Type PTII:	0 to 1393°C		or	32 to	2540°F
Type R:	0 to 1450°C		or	32 to 2642°F
Type S:	0 to 1450°C		or	32 to 2642°F
Type B:	870 to 1700°C		or	1598 to 3092°F
DIN:	-200 to	800°C	or	-328 to	1472°F
JIS:	-200 to	630°C	or	-328 to	1166°F

ModbusTM is a trademark of AEG Schneider Automation.